1dnl **************************************************************************
2dnl * Initialize
3dnl **************************************************************************
4AC_INIT([[[SAMPLE]]],[[[x.xx]]],[bugs@yourdomain])
5
6dnl Identify where LLVM source tree is
7LLVM_SRC_ROOT="../.."
8LLVM_OBJ_ROOT="../.."
9
10dnl Find absolute paths to LLVM source and object trees
11LLVM_ABS_SRC_ROOT="`cd $srcdir ; cd $LLVM_SRC_ROOT ; pwd`"
12LLVM_ABS_OBJ_ROOT="`cd $LLVM_OBJ_ROOT ; pwd`"
13
14dnl Tell autoconf that this is an LLVM project being configured
15dnl This provides the --with-llvmsrc and --with-llvmobj options
16LLVM_CONFIG_PROJECT($LLVM_ABS_SRC_ROOT,$LLVM_ABS_OBJ_ROOT)
17
18dnl Try and find an llvm-config in the build directory. We are only using this
19dnl to detect the package level LLVM information (currently just the version),
20dnl so we just whatever one we find regardless of build mode.
21AC_MSG_CHECKING([llvm-config])
22llvm_config_path="`ls -1 $llvm_obj/*/bin/llvm-config 2> /dev/null | head -1`"
23if ! test -f "$llvm_config_path" ; then
24   llvm_config_path="no"
25fi
26AC_MSG_RESULT([$llvm_config_path])
27
28dnl Determine the LLVM version, which may be required by the current Makefile
29dnl rules.
30AC_MSG_CHECKING([LLVM package version])
31if test "$llvm_config_path" != no ; then
32  llvm_package_version=`$llvm_config_path --version`
33else
34  llvm_package_version="unknown";
35fi
36AC_MSG_RESULT([$llvm_package_version])
37AC_SUBST(LLVM_VERSION, [$llvm_package_version])
38
39dnl Verify that the source directory is valid
40AC_CONFIG_SRCDIR(["Makefile.common.in"])
41
42dnl Place all of the extra autoconf files into the config subdirectory. Tell
43dnl various tools where the m4 autoconf macros are.
44AC_CONFIG_AUX_DIR([autoconf])
45
46dnl **************************************************************************
47dnl Begin LLVM configure.ac Import
48dnl **************************************************************************
49dnl
50dnl Derived from LLVM's configure.ac. This was imported directly here so that we
51dnl could reuse LLVM's build infrastructure without introducing a direct source
52dnl dependency on the LLVM files.
53
54dnl We need to check for the compiler up here to avoid anything else
55dnl starting with a different one.
56AC_PROG_CC(clang llvm-gcc gcc)
57AC_PROG_CXX(clang++ llvm-g++ g++)
58AC_PROG_CPP
59
60dnl Configure all of the projects present in our source tree. While we could
61dnl just AC_CONFIG_SUBDIRS on the set of directories in projects that have a
62dnl configure script, that usage of the AC_CONFIG_SUBDIRS macro is deprecated.
63dnl Instead we match on the known projects.
64
65dnl
66dnl One tricky part of doing this is that some projects depend upon other
67dnl projects.  For example, several projects rely upon the LLVM test suite.
68dnl We want to configure those projects first so that their object trees are
69dnl created before running the configure scripts of projects that depend upon
70dnl them.
71dnl
72
73dnl Disable the build of polly, even if it is checked out into tools/polly.
74AC_ARG_ENABLE(polly,
75              AS_HELP_STRING([--enable-polly],
76                             [Use polly if available (default is YES)]),,
77                             enableval=default)
78case "$enableval" in
79  yes) AC_SUBST(ENABLE_POLLY,[1]) ;;
80  no)  AC_SUBST(ENABLE_POLLY,[0]) ;;
81  default) AC_SUBST(ENABLE_POLLY,[1]) ;;
82  *) AC_MSG_ERROR([Invalid setting for --enable-polly. Use "yes" or "no"]) ;;
83esac
84
85
86dnl Check if polly is checked out into tools/polly and configure it if
87dnl available.
88if (test -d ${srcdir}/tools/polly) && (test $ENABLE_POLLY -eq 1) ; then
89  AC_SUBST(LLVM_HAS_POLLY,1)
90  AC_CONFIG_SUBDIRS([tools/polly])
91fi
92
93dnl===-----------------------------------------------------------------------===
94dnl===
95dnl=== SECTION 2: Architecture, target, and host checks
96dnl===
97dnl===-----------------------------------------------------------------------===
98
99dnl Check the target for which we're compiling and the host that will do the
100dnl compilations. This will tell us which LLVM compiler will be used for
101dnl compiling SSA into object code. This needs to be done early because
102dnl following tests depend on it.
103AC_CANONICAL_TARGET
104
105dnl Determine the platform type and cache its value. This helps us configure
106dnl the System library to the correct build platform.
107AC_CACHE_CHECK([type of operating system we're going to host on],
108               [llvm_cv_os_type],
109[case $host in
110  *-*-aix*)
111    llvm_cv_link_all_option="-Wl,--whole-archive"
112    llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
113    llvm_cv_os_type="AIX"
114    llvm_cv_platform_type="Unix" ;;
115  *-*-irix*)
116    llvm_cv_link_all_option="-Wl,--whole-archive"
117    llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
118    llvm_cv_os_type="IRIX"
119    llvm_cv_platform_type="Unix" ;;
120  *-*-cygwin*)
121    llvm_cv_link_all_option="-Wl,--whole-archive"
122    llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
123    llvm_cv_os_type="Cygwin"
124    llvm_cv_platform_type="Unix" ;;
125  *-*-darwin*)
126    llvm_cv_link_all_option="-Wl,-all_load"
127    llvm_cv_no_link_all_option="-Wl,-noall_load"
128    llvm_cv_os_type="Darwin"
129    llvm_cv_platform_type="Unix" ;;
130  *-*-minix*)
131    llvm_cv_link_all_option="-Wl,-all_load"
132    llvm_cv_no_link_all_option="-Wl,-noall_load"
133    llvm_cv_os_type="Minix"
134    llvm_cv_platform_type="Unix" ;;
135  *-*-freebsd* | *-*-kfreebsd-gnu)
136    llvm_cv_link_all_option="-Wl,--whole-archive"
137    llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
138    llvm_cv_os_type="FreeBSD"
139    llvm_cv_platform_type="Unix" ;;
140  *-*-openbsd*)
141    llvm_cv_link_all_option="-Wl,--whole-archive"
142    llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
143    llvm_cv_os_type="OpenBSD"
144    llvm_cv_platform_type="Unix" ;;
145  *-*-netbsd*)
146    llvm_cv_link_all_option="-Wl,--whole-archive"
147    llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
148    llvm_cv_os_type="NetBSD"
149    llvm_cv_platform_type="Unix" ;;
150  *-*-dragonfly*)
151    llvm_cv_link_all_option="-Wl,--whole-archive"
152    llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
153    llvm_cv_os_type="DragonFly"
154    llvm_cv_platform_type="Unix" ;;
155  *-*-hpux*)
156    llvm_cv_link_all_option="-Wl,--whole-archive"
157    llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
158    llvm_cv_os_type="HP-UX"
159    llvm_cv_platform_type="Unix" ;;
160  *-*-interix*)
161    llvm_cv_link_all_option="-Wl,--whole-archive"
162    llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
163    llvm_cv_os_type="Interix"
164    llvm_cv_platform_type="Unix" ;;
165  *-*-linux*)
166    llvm_cv_link_all_option="-Wl,--whole-archive"
167    llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
168    llvm_cv_os_type="Linux"
169    llvm_cv_platform_type="Unix" ;;
170  *-*-gnu*)
171    llvm_cv_link_all_option="-Wl,--whole-archive"
172    llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
173    llvm_cv_os_type="GNU"
174    llvm_cv_platform_type="Unix" ;;
175  *-*-solaris*)
176    llvm_cv_link_all_option="-Wl,-z,allextract"
177    llvm_cv_no_link_all_option="-Wl,-z,defaultextract"
178    llvm_cv_os_type="SunOS"
179    llvm_cv_platform_type="Unix" ;;
180  *-*-auroraux*)
181    llvm_cv_link_all_option="-Wl,-z,allextract"
182    llvm_cv_link_all_option="-Wl,-z,defaultextract"
183    llvm_cv_os_type="AuroraUX"
184    llvm_cv_platform_type="Unix" ;;
185  *-*-win32*)
186    llvm_cv_link_all_option="-Wl,--whole-archive"
187    llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
188    llvm_cv_os_type="Win32"
189    llvm_cv_platform_type="Win32" ;;
190  *-*-mingw*)
191    llvm_cv_link_all_option="-Wl,--whole-archive"
192    llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
193    llvm_cv_os_type="MingW"
194    llvm_cv_platform_type="Win32" ;;
195  *-*-haiku*)
196    llvm_cv_link_all_option="-Wl,--whole-archive"
197    llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
198    llvm_cv_os_type="Haiku"
199    llvm_cv_platform_type="Unix" ;;
200  *-unknown-eabi*)
201    llvm_cv_link_all_option="-Wl,--whole-archive"
202    llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
203    llvm_cv_os_type="Freestanding"
204    llvm_cv_platform_type="Unix" ;;
205  *-unknown-elf*)
206    llvm_cv_link_all_option="-Wl,--whole-archive"
207    llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
208    llvm_cv_os_type="Freestanding"
209    llvm_cv_platform_type="Unix" ;;
210  *)
211    llvm_cv_link_all_option=""
212    llvm_cv_no_link_all_option=""
213    llvm_cv_os_type="Unknown"
214    llvm_cv_platform_type="Unknown" ;;
215esac])
216
217AC_CACHE_CHECK([type of operating system we're going to target],
218               [llvm_cv_target_os_type],
219[case $target in
220  *-*-aix*)
221    llvm_cv_target_os_type="AIX" ;;
222  *-*-irix*)
223    llvm_cv_target_os_type="IRIX" ;;
224  *-*-cygwin*)
225    llvm_cv_target_os_type="Cygwin" ;;
226  *-*-darwin*)
227    llvm_cv_target_os_type="Darwin" ;;
228  *-*-minix*)
229    llvm_cv_target_os_type="Minix" ;;
230  *-*-freebsd* | *-*-kfreebsd-gnu)
231    llvm_cv_target_os_type="FreeBSD" ;;
232  *-*-openbsd*)
233    llvm_cv_target_os_type="OpenBSD" ;;
234  *-*-netbsd*)
235    llvm_cv_target_os_type="NetBSD" ;;
236  *-*-dragonfly*)
237    llvm_cv_target_os_type="DragonFly" ;;
238  *-*-hpux*)
239    llvm_cv_target_os_type="HP-UX" ;;
240  *-*-interix*)
241    llvm_cv_target_os_type="Interix" ;;
242  *-*-linux*)
243    llvm_cv_target_os_type="Linux" ;;
244  *-*-gnu*)
245    llvm_cv_target_os_type="GNU" ;;
246  *-*-solaris*)
247    llvm_cv_target_os_type="SunOS" ;;
248  *-*-auroraux*)
249    llvm_cv_target_os_type="AuroraUX" ;;
250  *-*-win32*)
251    llvm_cv_target_os_type="Win32" ;;
252  *-*-mingw*)
253    llvm_cv_target_os_type="MingW" ;;
254  *-*-haiku*)
255    llvm_cv_target_os_type="Haiku" ;;
256  *-*-rtems*)
257    llvm_cv_target_os_type="RTEMS" ;;
258  *-*-nacl*)
259    llvm_cv_target_os_type="NativeClient" ;;
260  *-unknown-eabi*)
261    llvm_cv_target_os_type="Freestanding" ;;
262  *)
263    llvm_cv_target_os_type="Unknown" ;;
264esac])
265
266dnl Make sure we aren't attempting to configure for an unknown system
267if test "$llvm_cv_os_type" = "Unknown" ; then
268  AC_MSG_ERROR([Operating system is unknown, configure can't continue])
269fi
270
271dnl Set the "OS" Makefile variable based on the platform type so the
272dnl makefile can configure itself to specific build hosts
273AC_SUBST(OS,$llvm_cv_os_type)
274AC_SUBST(HOST_OS,$llvm_cv_os_type)
275AC_SUBST(TARGET_OS,$llvm_cv_target_os_type)
276
277dnl Set the LINKALL and NOLINKALL Makefile variables based on the platform
278AC_SUBST(LINKALL,$llvm_cv_link_all_option)
279AC_SUBST(NOLINKALL,$llvm_cv_no_link_all_option)
280
281dnl Set the "LLVM_ON_*" variables based on llvm_cv_platform_type
282dnl This is used by lib/Support to determine the basic kind of implementation
283dnl to use.
284case $llvm_cv_platform_type in
285  Unix)
286    AC_DEFINE([LLVM_ON_UNIX],[1],[Define if this is Unixish platform])
287    AC_SUBST(LLVM_ON_UNIX,[1])
288    AC_SUBST(LLVM_ON_WIN32,[0])
289    ;;
290  Win32)
291    AC_DEFINE([LLVM_ON_WIN32],[1],[Define if this is Win32ish platform])
292    AC_SUBST(LLVM_ON_UNIX,[0])
293    AC_SUBST(LLVM_ON_WIN32,[1])
294    ;;
295esac
296
297dnl Determine what our target architecture is and configure accordingly.
298dnl This will allow Makefiles to make a distinction between the hardware and
299dnl the OS.
300AC_CACHE_CHECK([target architecture],[llvm_cv_target_arch],
301[case $target in
302  i?86-*)                 llvm_cv_target_arch="x86" ;;
303  amd64-* | x86_64-*)     llvm_cv_target_arch="x86_64" ;;
304  sparc*-*)               llvm_cv_target_arch="Sparc" ;;
305  powerpc*-*)             llvm_cv_target_arch="PowerPC" ;;
306  arm*-*)                 llvm_cv_target_arch="ARM" ;;
307  mips-*)                 llvm_cv_target_arch="Mips" ;;
308  mipsel-*)               llvm_cv_target_arch="Mips" ;;
309  xcore-*)                llvm_cv_target_arch="XCore" ;;
310  msp430-*)               llvm_cv_target_arch="MSP430" ;;
311  hexagon-*)              llvm_cv_target_arch="Hexagon" ;;
312  mblaze-*)               llvm_cv_target_arch="MBlaze" ;;
313  nvptx-*)                llvm_cv_target_arch="NVPTX" ;;
314  *)                      llvm_cv_target_arch="Unknown" ;;
315esac])
316
317if test "$llvm_cv_target_arch" = "Unknown" ; then
318  AC_MSG_WARN([Configuring LLVM for an unknown target archicture])
319fi
320
321# Determine the LLVM native architecture for the target
322case "$llvm_cv_target_arch" in
323    x86)     LLVM_NATIVE_ARCH="X86" ;;
324    x86_64)  LLVM_NATIVE_ARCH="X86" ;;
325    *)       LLVM_NATIVE_ARCH="$llvm_cv_target_arch" ;;
326esac
327
328dnl Define a substitution, ARCH, for the target architecture
329AC_SUBST(ARCH,$llvm_cv_target_arch)
330
331dnl Check for the endianness of the target
332AC_C_BIGENDIAN(AC_SUBST([ENDIAN],[big]),AC_SUBST([ENDIAN],[little]))
333
334dnl Check for build platform executable suffix if we're crosscompiling
335if test "$cross_compiling" = yes; then
336  AC_SUBST(LLVM_CROSS_COMPILING, [1])
337  AC_BUILD_EXEEXT
338  ac_build_prefix=${build_alias}-
339  AC_CHECK_PROG(BUILD_CXX, ${ac_build_prefix}g++, ${ac_build_prefix}g++)
340  if test -z "$BUILD_CXX"; then
341     AC_CHECK_PROG(BUILD_CXX, g++, g++)
342     if test -z "$BUILD_CXX"; then
343       AC_CHECK_PROG(BUILD_CXX, c++, c++, , , /usr/ucb/c++)
344     fi
345  fi
346else
347  AC_SUBST(LLVM_CROSS_COMPILING, [0])
348fi
349
350dnl Check to see if there's a .svn or .git directory indicating that this
351dnl build is being done from a checkout. This sets up several defaults for
352dnl the command line switches. When we build with a checkout directory,
353dnl we get a debug with assertions turned on. Without, we assume a source
354dnl release and we get an optimized build without assertions.
355dnl See --enable-optimized and --enable-assertions below
356if test -d ".svn" -o -d "${srcdir}/.svn" -o -d ".git" -o -d "${srcdir}/.git"; then
357  cvsbuild="yes"
358  optimize="no"
359  AC_SUBST(CVSBUILD,[[CVSBUILD=1]])
360else
361  cvsbuild="no"
362  optimize="yes"
363fi
364
365dnl===-----------------------------------------------------------------------===
366dnl===
367dnl=== SECTION 3: Command line arguments for the configure script.
368dnl===
369dnl===-----------------------------------------------------------------------===
370
371dnl --enable-libcpp : check whether or not to use libc++ on the command line
372AC_ARG_ENABLE(libcpp,
373              AS_HELP_STRING([--enable-libcpp],
374                             [Use libc++ if available (default is NO)]),,
375                             enableval=default)
376case "$enableval" in
377  yes) AC_SUBST(ENABLE_LIBCPP,[1]) ;;
378  no)  AC_SUBST(ENABLE_LIBCPP,[0]) ;;
379  default) AC_SUBST(ENABLE_LIBCPP,[0]);;
380  *) AC_MSG_ERROR([Invalid setting for --enable-libcpp. Use "yes" or "no"]) ;;
381esac
382
383dnl --enable-optimized : check whether they want to do an optimized build:
384AC_ARG_ENABLE(optimized, AS_HELP_STRING(
385 --enable-optimized,[Compile with optimizations enabled (default is NO)]),,enableval=$optimize)
386if test ${enableval} = "no" ; then
387  AC_SUBST(ENABLE_OPTIMIZED,[[]])
388else
389  AC_SUBST(ENABLE_OPTIMIZED,[[ENABLE_OPTIMIZED=1]])
390fi
391
392dnl --enable-profiling : check whether they want to do a profile build:
393AC_ARG_ENABLE(profiling, AS_HELP_STRING(
394 --enable-profiling,[Compile with profiling enabled (default is NO)]),,enableval="no")
395if test ${enableval} = "no" ; then
396  AC_SUBST(ENABLE_PROFILING,[[]])
397else
398  AC_SUBST(ENABLE_PROFILING,[[ENABLE_PROFILING=1]])
399fi
400
401dnl --enable-assertions : check whether they want to turn on assertions or not:
402AC_ARG_ENABLE(assertions,AS_HELP_STRING(
403  --enable-assertions,[Compile with assertion checks enabled (default is YES)]),, enableval="yes")
404if test ${enableval} = "yes" ; then
405  AC_SUBST(DISABLE_ASSERTIONS,[[]])
406else
407  AC_SUBST(DISABLE_ASSERTIONS,[[DISABLE_ASSERTIONS=1]])
408fi
409
410dnl --enable-expensive-checks : check whether they want to turn on expensive debug checks:
411AC_ARG_ENABLE(expensive-checks,AS_HELP_STRING(
412  --enable-expensive-checks,[Compile with expensive debug checks enabled (default is NO)]),, enableval="no")
413if test ${enableval} = "yes" ; then
414  AC_SUBST(ENABLE_EXPENSIVE_CHECKS,[[ENABLE_EXPENSIVE_CHECKS=1]])
415  AC_SUBST(EXPENSIVE_CHECKS,[[yes]])
416else
417  AC_SUBST(ENABLE_EXPENSIVE_CHECKS,[[]])
418  AC_SUBST(EXPENSIVE_CHECKS,[[no]])
419fi
420
421dnl --enable-debug-runtime : should runtime libraries have debug symbols?
422AC_ARG_ENABLE(debug-runtime,
423   AS_HELP_STRING(--enable-debug-runtime,[Build runtime libs with debug symbols (default is NO)]),,enableval=no)
424if test ${enableval} = "no" ; then
425  AC_SUBST(DEBUG_RUNTIME,[[]])
426else
427  AC_SUBST(DEBUG_RUNTIME,[[DEBUG_RUNTIME=1]])
428fi
429
430dnl --enable-debug-symbols : should even optimized compiler libraries
431dnl have debug symbols?
432AC_ARG_ENABLE(debug-symbols,
433   AS_HELP_STRING(--enable-debug-symbols,[Build compiler with debug symbols (default is NO if optimization is on and YES if it's off)]),,enableval=no)
434if test ${enableval} = "no" ; then
435  AC_SUBST(DEBUG_SYMBOLS,[[]])
436else
437  AC_SUBST(DEBUG_SYMBOLS,[[DEBUG_SYMBOLS=1]])
438fi
439
440dnl --enable-jit: check whether they want to enable the jit
441AC_ARG_ENABLE(jit,
442  AS_HELP_STRING(--enable-jit,
443                 [Enable Just In Time Compiling (default is YES)]),,
444  enableval=default)
445if test ${enableval} = "no"
446then
447  AC_SUBST(JIT,[[]])
448else
449  case "$llvm_cv_target_arch" in
450    x86)         AC_SUBST(TARGET_HAS_JIT,1) ;;
451    Sparc)       AC_SUBST(TARGET_HAS_JIT,0) ;;
452    PowerPC)     AC_SUBST(TARGET_HAS_JIT,1) ;;
453    x86_64)      AC_SUBST(TARGET_HAS_JIT,1) ;;
454    ARM)         AC_SUBST(TARGET_HAS_JIT,1) ;;
455    Mips)        AC_SUBST(TARGET_HAS_JIT,1) ;;
456    XCore)       AC_SUBST(TARGET_HAS_JIT,0) ;;
457    MSP430)      AC_SUBST(TARGET_HAS_JIT,0) ;;
458    Hexagon)     AC_SUBST(TARGET_HAS_JIT,0) ;;
459    MBlaze)      AC_SUBST(TARGET_HAS_JIT,0) ;;
460    NVPTX)       AC_SUBST(TARGET_HAS_JIT,0) ;;
461    *)           AC_SUBST(TARGET_HAS_JIT,0) ;;
462  esac
463fi
464
465dnl Allow enablement of building and installing docs
466AC_ARG_ENABLE(docs,
467              AS_HELP_STRING([--enable-docs],
468                             [Build documents (default is YES)]),,
469                             enableval=default)
470case "$enableval" in
471  yes) AC_SUBST(ENABLE_DOCS,[1]) ;;
472  no)  AC_SUBST(ENABLE_DOCS,[0]) ;;
473  default) AC_SUBST(ENABLE_DOCS,[1]) ;;
474  *) AC_MSG_ERROR([Invalid setting for --enable-docs. Use "yes" or "no"]) ;;
475esac
476
477dnl Allow enablement of doxygen generated documentation
478AC_ARG_ENABLE(doxygen,
479              AS_HELP_STRING([--enable-doxygen],
480                             [Build doxygen documentation (default is NO)]),,
481                             enableval=default)
482case "$enableval" in
483  yes) AC_SUBST(ENABLE_DOXYGEN,[1]) ;;
484  no)  AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
485  default) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
486  *) AC_MSG_ERROR([Invalid setting for --enable-doxygen. Use "yes" or "no"]) ;;
487esac
488
489dnl Allow disablement of threads
490AC_ARG_ENABLE(threads,
491              AS_HELP_STRING([--enable-threads],
492                             [Use threads if available (default is YES)]),,
493                             enableval=default)
494case "$enableval" in
495  yes) AC_SUBST(ENABLE_THREADS,[1]) ;;
496  no)  AC_SUBST(ENABLE_THREADS,[0]) ;;
497  default) AC_SUBST(ENABLE_THREADS,[1]) ;;
498  *) AC_MSG_ERROR([Invalid setting for --enable-threads. Use "yes" or "no"]) ;;
499esac
500AC_DEFINE_UNQUOTED([ENABLE_THREADS],$ENABLE_THREADS,[Define if threads enabled])
501
502dnl Allow disablement of pthread.h
503AC_ARG_ENABLE(pthreads,
504              AS_HELP_STRING([--enable-pthreads],
505                             [Use pthreads if available (default is YES)]),,
506                             enableval=default)
507case "$enableval" in
508  yes) AC_SUBST(ENABLE_PTHREADS,[1]) ;;
509  no)  AC_SUBST(ENABLE_PTHREADS,[0]) ;;
510  default) AC_SUBST(ENABLE_PTHREADS,[1]) ;;
511  *) AC_MSG_ERROR([Invalid setting for --enable-pthreads. Use "yes" or "no"]) ;;
512esac
513
514dnl Allow building without position independent code
515AC_ARG_ENABLE(pic,
516  AS_HELP_STRING([--enable-pic],
517                 [Build LLVM with Position Independent Code (default is YES)]),,
518                 enableval=default)
519case "$enableval" in
520  yes) AC_SUBST(ENABLE_PIC,[1]) ;;
521  no)  AC_SUBST(ENABLE_PIC,[0]) ;;
522  default) AC_SUBST(ENABLE_PIC,[1]) ;;
523  *) AC_MSG_ERROR([Invalid setting for --enable-pic. Use "yes" or "no"]) ;;
524esac
525AC_DEFINE_UNQUOTED([ENABLE_PIC],$ENABLE_PIC,
526                   [Define if position independent code is enabled])
527
528dnl Allow building a shared library and linking tools against it.
529AC_ARG_ENABLE(shared,
530  AS_HELP_STRING([--enable-shared],
531                 [Build a shared library and link tools against it (default is NO)]),,
532                 enableval=default)
533case "$enableval" in
534  yes) AC_SUBST(ENABLE_SHARED,[1]) ;;
535  no)  AC_SUBST(ENABLE_SHARED,[0]) ;;
536  default) AC_SUBST(ENABLE_SHARED,[0]) ;;
537  *) AC_MSG_ERROR([Invalid setting for --enable-shared. Use "yes" or "no"]) ;;
538esac
539
540dnl Allow libstdc++ is embedded in LLVM.dll.
541AC_ARG_ENABLE(embed-stdcxx,
542  AS_HELP_STRING([--enable-embed-stdcxx],
543                 [Build a shared library with embedded libstdc++ for Win32 DLL (default is YES)]),,
544                 enableval=default)
545case "$enableval" in
546  yes) AC_SUBST(ENABLE_EMBED_STDCXX,[1]) ;;
547  no)  AC_SUBST(ENABLE_EMBED_STDCXX,[0]) ;;
548  default) AC_SUBST(ENABLE_EMBED_STDCXX,[1]) ;;
549  *) AC_MSG_ERROR([Invalid setting for --enable-embed-stdcxx. Use "yes" or "no"]) ;;
550esac
551
552dnl Enable embedding timestamp information into build.
553AC_ARG_ENABLE(timestamps,
554  AS_HELP_STRING([--enable-timestamps],
555                 [Enable embedding timestamp information in build (default is YES)]),,
556                 enableval=default)
557case "$enableval" in
558  yes) AC_SUBST(ENABLE_TIMESTAMPS,[1]) ;;
559  no)  AC_SUBST(ENABLE_TIMESTAMPS,[0]) ;;
560  default) AC_SUBST(ENABLE_TIMESTAMPS,[1]) ;;
561  *) AC_MSG_ERROR([Invalid setting for --enable-timestamps. Use "yes" or "no"]) ;;
562esac
563AC_DEFINE_UNQUOTED([ENABLE_TIMESTAMPS],$ENABLE_TIMESTAMPS,
564                   [Define if timestamp information (e.g., __DATE___) is allowed])
565
566dnl Allow specific targets to be specified for building (or not)
567TARGETS_TO_BUILD=""
568AC_ARG_ENABLE([targets],AS_HELP_STRING([--enable-targets],
569    [Build specific host targets: all or target1,target2,... Valid targets are:
570     host, x86, x86_64, sparc, powerpc, arm, mips, spu, hexagon,
571     xcore, msp430, nvptx, cbe, and cpp (default=all)]),,
572    enableval=all)
573if test "$enableval" = host-only ; then
574  enableval=host
575fi
576case "$enableval" in
577  all) TARGETS_TO_BUILD="X86 Sparc PowerPC ARM Mips CellSPU XCore MSP430 Hexagon CppBackend MBlaze NVPTX" ;;
578  *)for a_target in `echo $enableval|sed -e 's/,/ /g' ` ; do
579      case "$a_target" in
580        x86)      TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
581        x86_64)   TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
582        sparc)    TARGETS_TO_BUILD="Sparc $TARGETS_TO_BUILD" ;;
583        powerpc)  TARGETS_TO_BUILD="PowerPC $TARGETS_TO_BUILD" ;;
584        arm)      TARGETS_TO_BUILD="ARM $TARGETS_TO_BUILD" ;;
585        mips)     TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
586        spu)      TARGETS_TO_BUILD="CellSPU $TARGETS_TO_BUILD" ;;
587        xcore)    TARGETS_TO_BUILD="XCore $TARGETS_TO_BUILD" ;;
588        msp430)   TARGETS_TO_BUILD="MSP430 $TARGETS_TO_BUILD" ;;
589        hexagon)  TARGETS_TO_BUILD="Hexagon $TARGETS_TO_BUILD" ;;
590        cpp)      TARGETS_TO_BUILD="CppBackend $TARGETS_TO_BUILD" ;;
591        mblaze)   TARGETS_TO_BUILD="MBlaze $TARGETS_TO_BUILD" ;;
592        nvptx)    TARGETS_TO_BUILD="NVPTX $TARGETS_TO_BUILD" ;;
593        host) case "$llvm_cv_target_arch" in
594            x86)         TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
595            x86_64)      TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
596            Sparc)       TARGETS_TO_BUILD="Sparc $TARGETS_TO_BUILD" ;;
597            PowerPC)     TARGETS_TO_BUILD="PowerPC $TARGETS_TO_BUILD" ;;
598            ARM)         TARGETS_TO_BUILD="ARM $TARGETS_TO_BUILD" ;;
599            Mips)        TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
600            MBlaze)      TARGETS_TO_BUILD="MBlaze $TARGETS_TO_BUILD" ;;
601            CellSPU|SPU) TARGETS_TO_BUILD="CellSPU $TARGETS_TO_BUILD" ;;
602            XCore)       TARGETS_TO_BUILD="XCore $TARGETS_TO_BUILD" ;;
603            MSP430)      TARGETS_TO_BUILD="MSP430 $TARGETS_TO_BUILD" ;;
604            Hexagon)     TARGETS_TO_BUILD="Hexagon $TARGETS_TO_BUILD" ;;
605            NVPTX)       TARGETS_TO_BUILD="NVPTX $TARGETS_TO_BUILD" ;;
606            *)       AC_MSG_ERROR([Can not set target to build]) ;;
607          esac ;;
608        *) AC_MSG_ERROR([Unrecognized target $a_target]) ;;
609      esac
610  done
611  ;;
612esac
613AC_SUBST(TARGETS_TO_BUILD,$TARGETS_TO_BUILD)
614
615# Determine whether we are building LLVM support for the native architecture.
616# If so, define LLVM_NATIVE_ARCH to that LLVM target.
617for a_target in $TARGETS_TO_BUILD; do
618  if test "$a_target" = "$LLVM_NATIVE_ARCH"; then
619    AC_DEFINE_UNQUOTED(LLVM_NATIVE_ARCH, $LLVM_NATIVE_ARCH,
620      [LLVM architecture name for the native architecture, if available])
621    LLVM_NATIVE_TARGET="LLVMInitialize${LLVM_NATIVE_ARCH}Target"
622    LLVM_NATIVE_TARGETINFO="LLVMInitialize${LLVM_NATIVE_ARCH}TargetInfo"
623    LLVM_NATIVE_TARGETMC="LLVMInitialize${LLVM_NATIVE_ARCH}TargetMC"
624    LLVM_NATIVE_ASMPRINTER="LLVMInitialize${LLVM_NATIVE_ARCH}AsmPrinter"
625    if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/AsmParser/Makefile ; then
626      LLVM_NATIVE_ASMPARSER="LLVMInitialize${LLVM_NATIVE_ARCH}AsmParser"
627    fi
628    if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/Disassembler/Makefile ; then
629      LLVM_NATIVE_DISASSEMBLER="LLVMInitialize${LLVM_NATIVE_ARCH}Disassembler"
630    fi
631    AC_DEFINE_UNQUOTED(LLVM_NATIVE_TARGET, $LLVM_NATIVE_TARGET,
632      [LLVM name for the native Target init function, if available])
633    AC_DEFINE_UNQUOTED(LLVM_NATIVE_TARGETINFO, $LLVM_NATIVE_TARGETINFO,
634      [LLVM name for the native TargetInfo init function, if available])
635    AC_DEFINE_UNQUOTED(LLVM_NATIVE_TARGETMC, $LLVM_NATIVE_TARGETMC,
636      [LLVM name for the native target MC init function, if available])
637    AC_DEFINE_UNQUOTED(LLVM_NATIVE_ASMPRINTER, $LLVM_NATIVE_ASMPRINTER,
638      [LLVM name for the native AsmPrinter init function, if available])
639    if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/AsmParser/Makefile ; then
640      AC_DEFINE_UNQUOTED(LLVM_NATIVE_ASMPARSER, $LLVM_NATIVE_ASMPARSER,
641       [LLVM name for the native AsmParser init function, if available])
642    fi
643    if test -f ${srcdir}/lib/Target/${LLVM_NATIVE_ARCH}/Disassembler/Makefile ; then
644      AC_DEFINE_UNQUOTED(LLVM_NATIVE_DISASSEMBLER, $LLVM_NATIVE_DISASSEMBLER,
645       [LLVM name for the native Disassembler init function, if available])
646    fi
647  fi
648done
649
650# Build the LLVM_TARGET and LLVM_... macros for Targets.def and the individual
651# target feature def files.
652LLVM_ENUM_TARGETS=""
653LLVM_ENUM_ASM_PRINTERS=""
654LLVM_ENUM_ASM_PARSERS=""
655LLVM_ENUM_DISASSEMBLERS=""
656for target_to_build in $TARGETS_TO_BUILD; do
657  LLVM_ENUM_TARGETS="LLVM_TARGET($target_to_build) $LLVM_ENUM_TARGETS"
658  if test -f ${srcdir}/lib/Target/${target_to_build}/*AsmPrinter.cpp ; then
659    LLVM_ENUM_ASM_PRINTERS="LLVM_ASM_PRINTER($target_to_build) $LLVM_ENUM_ASM_PRINTERS";
660  fi
661  if test -f ${srcdir}/lib/Target/${target_to_build}/AsmParser/Makefile ; then
662    LLVM_ENUM_ASM_PARSERS="LLVM_ASM_PARSER($target_to_build) $LLVM_ENUM_ASM_PARSERS";
663  fi
664  if test -f ${srcdir}/lib/Target/${target_to_build}/Disassembler/Makefile ; then
665    LLVM_ENUM_DISASSEMBLERS="LLVM_DISASSEMBLER($target_to_build) $LLVM_ENUM_DISASSEMBLERS";
666  fi
667done
668AC_SUBST(LLVM_ENUM_TARGETS)
669AC_SUBST(LLVM_ENUM_ASM_PRINTERS)
670AC_SUBST(LLVM_ENUM_ASM_PARSERS)
671AC_SUBST(LLVM_ENUM_DISASSEMBLERS)
672
673dnl Override the option to use for optimized builds.
674AC_ARG_WITH(optimize-option,
675  AS_HELP_STRING([--with-optimize-option],
676                 [Select the compiler options to use for optimized builds]),,
677                 withval=default)
678AC_MSG_CHECKING([optimization flags])
679case "$withval" in
680  default)
681    case "$llvm_cv_os_type" in
682    FreeBSD) optimize_option=-O2 ;;
683    MingW) optimize_option=-O2 ;;
684    *)     optimize_option=-O3 ;;
685    esac ;;
686  *) optimize_option="$withval" ;;
687esac
688AC_SUBST(OPTIMIZE_OPTION,$optimize_option)
689AC_MSG_RESULT([$optimize_option])
690
691dnl Specify extra build options
692AC_ARG_WITH(extra-options,
693  AS_HELP_STRING([--with-extra-options],
694                 [Specify additional options to compile LLVM with]),,
695                 withval=default)
696case "$withval" in
697  default) EXTRA_OPTIONS= ;;
698  *) EXTRA_OPTIONS=$withval ;;
699esac
700AC_SUBST(EXTRA_OPTIONS,$EXTRA_OPTIONS)
701
702dnl Specify extra linker build options
703AC_ARG_WITH(extra-ld-options,
704  AS_HELP_STRING([--with-extra-ld-options],
705                 [Specify additional options to link LLVM with]),,
706                 withval=default)
707case "$withval" in
708  default) EXTRA_LD_OPTIONS= ;;
709  *) EXTRA_LD_OPTIONS=$withval ;;
710esac
711AC_SUBST(EXTRA_LD_OPTIONS,$EXTRA_LD_OPTIONS)
712
713dnl Allow specific bindings to be specified for building (or not)
714AC_ARG_ENABLE([bindings],AS_HELP_STRING([--enable-bindings],
715    [Build specific language bindings: all,auto,none,{binding-name} (default=auto)]),,
716    enableval=default)
717BINDINGS_TO_BUILD=""
718case "$enableval" in
719  yes | default | auto) BINDINGS_TO_BUILD="auto" ;;
720  all ) BINDINGS_TO_BUILD="ocaml" ;;
721  none | no) BINDINGS_TO_BUILD="" ;;
722  *)for a_binding in `echo $enableval|sed -e 's/,/ /g' ` ; do
723      case "$a_binding" in
724        ocaml) BINDINGS_TO_BUILD="ocaml $BINDINGS_TO_BUILD" ;;
725        *) AC_MSG_ERROR([Unrecognized binding $a_binding]) ;;
726      esac
727  done
728  ;;
729esac
730
731dnl Allow the ocaml libdir to be overridden. This could go in a configure
732dnl script for bindings/ocaml/configure, except that its auto value depends on
733dnl OCAMLC, which is found here to support tests.
734AC_ARG_WITH([ocaml-libdir],
735  [AS_HELP_STRING([--with-ocaml-libdir],
736    [Specify install location for ocaml bindings (default is stdlib)])],
737  [],
738  [withval=auto])
739case "$withval" in
740  auto) with_ocaml_libdir="$withval" ;;
741  /* | [[A-Za-z]]:[[\\/]]*) with_ocaml_libdir="$withval" ;;
742  *) AC_MSG_ERROR([Invalid path for --with-ocaml-libdir. Provide full path]) ;;
743esac
744
745AC_ARG_WITH(clang-resource-dir,
746  AS_HELP_STRING([--with-clang-resource-dir],
747    [Relative directory from the Clang binary for resource files]),,
748    withval="")
749AC_DEFINE_UNQUOTED(CLANG_RESOURCE_DIR,"$withval",
750                   [Relative directory for resource files])
751
752AC_ARG_WITH(c-include-dirs,
753  AS_HELP_STRING([--with-c-include-dirs],
754    [Colon separated list of directories clang will search for headers]),,
755    withval="")
756AC_DEFINE_UNQUOTED(C_INCLUDE_DIRS,"$withval",
757                   [Directories clang will search for headers])
758
759# Clang normally uses the system c++ headers and libraries. With this option,
760# clang will use the ones provided by a gcc installation instead. This option should
761# be passed the same value that was used with --prefix when configuring gcc.
762AC_ARG_WITH(gcc-toolchain,
763  AS_HELP_STRING([--with-gcc-toolchain],
764    [Directory where gcc is installed.]),,
765    withval="")
766AC_DEFINE_UNQUOTED(GCC_INSTALL_PREFIX,"$withval",
767                   [Directory where gcc is installed.])
768
769dnl Allow linking of LLVM with GPLv3 binutils code.
770AC_ARG_WITH(binutils-include,
771  AS_HELP_STRING([--with-binutils-include],
772    [Specify path to binutils/include/ containing plugin-api.h file for gold plugin.]),,
773  withval=default)
774case "$withval" in
775  default) WITH_BINUTILS_INCDIR=default ;;
776  /* | [[A-Za-z]]:[[\\/]]*)      WITH_BINUTILS_INCDIR=$withval ;;
777  *) AC_MSG_ERROR([Invalid path for --with-binutils-include. Provide full path]) ;;
778esac
779if test "x$WITH_BINUTILS_INCDIR" != xdefault ; then
780  AC_SUBST(BINUTILS_INCDIR,$WITH_BINUTILS_INCDIR)
781  if test ! -f "$WITH_BINUTILS_INCDIR/plugin-api.h"; then
782     echo "$WITH_BINUTILS_INCDIR/plugin-api.h"
783     AC_MSG_ERROR([Invalid path to directory containing plugin-api.h.]);
784  fi
785fi
786
787dnl Specify the URL where bug reports should be submitted.
788AC_ARG_WITH(bug-report-url,
789  AS_HELP_STRING([--with-bug-report-url],
790    [Specify the URL where bug reports should be submitted (default=http://llvm.org/bugs/)]),,
791    withval="http://llvm.org/bugs/")
792AC_DEFINE_UNQUOTED(BUG_REPORT_URL,"$withval",
793                   [Bug report URL.])
794
795dnl --enable-libffi : check whether the user wants to turn off libffi:
796AC_ARG_ENABLE(libffi,AS_HELP_STRING(
797  --enable-libffi,[Check for the presence of libffi (default is NO)]),
798  [case "$enableval" in
799    yes) llvm_cv_enable_libffi="yes" ;;
800    no)  llvm_cv_enable_libffi="no"  ;;
801    *) AC_MSG_ERROR([Invalid setting for --enable-libffi. Use "yes" or "no"]) ;;
802  esac],
803  llvm_cv_enable_libffi=no)
804
805dnl===-----------------------------------------------------------------------===
806dnl===
807dnl=== SECTION 4: Check for programs we need and that they are the right version
808dnl===
809dnl===-----------------------------------------------------------------------===
810
811AC_PROG_NM
812AC_SUBST(NM)
813
814dnl Check for the tools that the makefiles require
815AC_CHECK_GNU_MAKE
816AC_PROG_LN_S
817AC_PATH_PROG(CMP, [cmp], [cmp])
818AC_PATH_PROG(CP, [cp], [cp])
819AC_PATH_PROG(DATE, [date], [date])
820AC_PATH_PROG(FIND, [find], [find])
821AC_PATH_PROG(GREP, [grep], [grep])
822AC_PATH_PROG(MKDIR,[mkdir],[mkdir])
823AC_PATH_PROG(MV,   [mv],   [mv])
824AC_PROG_RANLIB
825AC_CHECK_TOOL(AR, ar, false)
826AC_PATH_PROG(RM,   [rm],   [rm])
827AC_PATH_PROG(SED,  [sed],  [sed])
828AC_PATH_PROG(TAR,  [tar],  [gtar])
829AC_PATH_PROG(BINPWD,[pwd],  [pwd])
830
831dnl Looking for misc. graph plotting software
832AC_PATH_PROG(GRAPHVIZ, [Graphviz], [echo Graphviz])
833if test "$GRAPHVIZ" != "echo Graphviz" ; then
834  AC_DEFINE([HAVE_GRAPHVIZ],[1],[Define if the Graphviz program is available])
835  dnl If we're targeting for mingw we should emit windows paths, not msys
836  if test "$llvm_cv_os_type" = "MingW" ; then
837    GRAPHVIZ=`echo $GRAPHVIZ | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
838  fi
839  AC_DEFINE_UNQUOTED([LLVM_PATH_GRAPHVIZ],"$GRAPHVIZ${EXEEXT}",
840   [Define to path to Graphviz program if found or 'echo Graphviz' otherwise])
841fi
842AC_PATH_PROG(DOT, [dot], [echo dot])
843if test "$DOT" != "echo dot" ; then
844  AC_DEFINE([HAVE_DOT],[1],[Define if the dot program is available])
845  dnl If we're targeting for mingw we should emit windows paths, not msys
846  if test "$llvm_cv_os_type" = "MingW" ; then
847    DOT=`echo $DOT | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
848  fi
849  AC_DEFINE_UNQUOTED([LLVM_PATH_DOT],"$DOT${EXEEXT}",
850   [Define to path to dot program if found or 'echo dot' otherwise])
851fi
852AC_PATH_PROG(FDP, [fdp], [echo fdp])
853if test "$FDP" != "echo fdp" ; then
854  AC_DEFINE([HAVE_FDP],[1],[Define if the neat program is available])
855  dnl If we're targeting for mingw we should emit windows paths, not msys
856  if test "$llvm_cv_os_type" = "MingW" ; then
857    FDP=`echo $FDP | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
858  fi
859  AC_DEFINE_UNQUOTED([LLVM_PATH_FDP],"$FDP${EXEEXT}",
860   [Define to path to fdp program if found or 'echo fdp' otherwise])
861fi
862AC_PATH_PROG(NEATO, [neato], [echo neato])
863if test "$NEATO" != "echo neato" ; then
864  AC_DEFINE([HAVE_NEATO],[1],[Define if the neat program is available])
865  dnl If we're targeting for mingw we should emit windows paths, not msys
866  if test "$llvm_cv_os_type" = "MingW" ; then
867    NEATO=`echo $NEATO | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
868  fi
869  AC_DEFINE_UNQUOTED([LLVM_PATH_NEATO],"$NEATO${EXEEXT}",
870   [Define to path to neato program if found or 'echo neato' otherwise])
871fi
872AC_PATH_PROG(TWOPI, [twopi], [echo twopi])
873if test "$TWOPI" != "echo twopi" ; then
874  AC_DEFINE([HAVE_TWOPI],[1],[Define if the neat program is available])
875  dnl If we're targeting for mingw we should emit windows paths, not msys
876  if test "$llvm_cv_os_type" = "MingW" ; then
877    TWOPI=`echo $TWOPI | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
878  fi
879  AC_DEFINE_UNQUOTED([LLVM_PATH_TWOPI],"$TWOPI${EXEEXT}",
880   [Define to path to twopi program if found or 'echo twopi' otherwise])
881fi
882AC_PATH_PROG(CIRCO, [circo], [echo circo])
883if test "$CIRCO" != "echo circo" ; then
884  AC_DEFINE([HAVE_CIRCO],[1],[Define if the neat program is available])
885  dnl If we're targeting for mingw we should emit windows paths, not msys
886  if test "$llvm_cv_os_type" = "MingW" ; then
887    CIRCO=`echo $CIRCO | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
888  fi
889  AC_DEFINE_UNQUOTED([LLVM_PATH_CIRCO],"$CIRCO${EXEEXT}",
890   [Define to path to circo program if found or 'echo circo' otherwise])
891fi
892AC_PATH_PROGS(GV, [gv gsview32], [echo gv])
893if test "$GV" != "echo gv" ; then
894  AC_DEFINE([HAVE_GV],[1],[Define if the gv program is available])
895  dnl If we're targeting for mingw we should emit windows paths, not msys
896  if test "$llvm_cv_os_type" = "MingW" ; then
897    GV=`echo $GV | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
898  fi
899  AC_DEFINE_UNQUOTED([LLVM_PATH_GV],"$GV${EXEEXT}",
900   [Define to path to gv program if found or 'echo gv' otherwise])
901fi
902AC_PATH_PROG(DOTTY, [dotty], [echo dotty])
903if test "$DOTTY" != "echo dotty" ; then
904  AC_DEFINE([HAVE_DOTTY],[1],[Define if the dotty program is available])
905  dnl If we're targeting for mingw we should emit windows paths, not msys
906  if test "$llvm_cv_os_type" = "MingW" ; then
907    DOTTY=`echo $DOTTY | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
908  fi
909  AC_DEFINE_UNQUOTED([LLVM_PATH_DOTTY],"$DOTTY${EXEEXT}",
910   [Define to path to dotty program if found or 'echo dotty' otherwise])
911fi
912AC_PATH_PROG(XDOT_PY, [xdot.py], [echo xdot.py])
913if test "$XDOT_PY" != "echo xdot.py" ; then
914  AC_DEFINE([HAVE_XDOT_PY],[1],[Define if the xdot.py program is available])
915  dnl If we're targeting for mingw we should emit windows paths, not msys
916  if test "$llvm_cv_os_type" = "MingW" ; then
917    XDOT_PY=`echo $XDOT_PY | sed 's/^\/\([[A-Za-z]]\)\//\1:\//' `
918  fi
919  AC_DEFINE_UNQUOTED([LLVM_PATH_XDOT_PY],"$XDOT_PY${EXEEXT}",
920   [Define to path to xdot.py program if found or 'echo xdot.py' otherwise])
921fi
922
923dnl Find the install program
924AC_PROG_INSTALL
925dnl Prepend src dir to install path dir if it's a relative path
926dnl This is a hack for installs that take place in something other
927dnl than the top level.
928case "$INSTALL" in
929 [[\\/$]]* | ?:[[\\/]]* ) ;;
930 *)  INSTALL="\\\$(TOPSRCDIR)/$INSTALL" ;;
931esac
932
933dnl Checks for documentation and testing tools that we can do without. If these
934dnl are not found then they are set to "true" which always succeeds but does
935dnl nothing. This just lets the build output show that we could have done
936dnl something if the tool was available.
937AC_PATH_PROG(BZIP2, [bzip2])
938AC_PATH_PROG(CAT, [cat])
939AC_PATH_PROG(DOXYGEN, [doxygen])
940AC_PATH_PROG(GROFF, [groff])
941AC_PATH_PROG(GZIPBIN, [gzip])
942AC_PATH_PROG(POD2HTML, [pod2html])
943AC_PATH_PROG(POD2MAN, [pod2man])
944AC_PATH_PROG(PDFROFF, [pdfroff])
945AC_PATH_PROG(RUNTEST, [runtest])
946DJ_AC_PATH_TCLSH
947AC_PATH_PROG(ZIP, [zip])
948AC_PATH_PROGS(OCAMLC, [ocamlc])
949AC_PATH_PROGS(OCAMLOPT, [ocamlopt])
950AC_PATH_PROGS(OCAMLDEP, [ocamldep])
951AC_PATH_PROGS(OCAMLDOC, [ocamldoc])
952AC_PATH_PROGS(GAS, [gas as])
953
954dnl Get the version of the linker in use.
955AC_LINK_GET_VERSION
956
957dnl Determine whether the linker supports the -R option.
958AC_LINK_USE_R
959
960dnl Determine whether the linker supports the -export-dynamic option.
961AC_LINK_EXPORT_DYNAMIC
962
963dnl Determine whether the linker supports the --version-script option.
964AC_LINK_VERSION_SCRIPT
965
966dnl Check for libtool and the library that has dlopen function (which must come
967dnl before the AC_PROG_LIBTOOL check in order to enable dlopening libraries with
968dnl libtool).
969AC_LIBTOOL_DLOPEN
970AC_LIB_LTDL
971
972AC_MSG_CHECKING([tool compatibility])
973
974dnl Ensure that compilation tools are GCC or a GNU compatible compiler such as
975dnl ICC; we use GCC specific options in the makefiles so the compiler needs
976dnl to support those options.
977dnl "icc" emits gcc signatures
978dnl "icc -no-gcc" emits no gcc signature BUT is still compatible
979ICC=no
980IXX=no
981case $CC in
982  icc*|icpc*)
983    ICC=yes
984    IXX=yes
985    ;;
986   *)
987    ;;
988esac
989
990if test "$GCC" != "yes" && test "$ICC" != "yes"
991then
992  AC_MSG_ERROR([gcc|icc required but not found])
993fi
994
995dnl Ensure that compilation tools are compatible with GCC extensions
996if test "$GXX" != "yes" && test "$IXX" != "yes"
997then
998  AC_MSG_ERROR([g++|clang++|icc required but not found])
999fi
1000
1001dnl Verify that GCC is version 3.0 or higher
1002if test "$GCC" = "yes"
1003then
1004  AC_COMPILE_IFELSE([[#if !defined(__GNUC__) || __GNUC__ < 3
1005#error Unsupported GCC version
1006#endif
1007]], [], [AC_MSG_ERROR([gcc 3.x required, but you have a lower version])])
1008fi
1009
1010dnl Check for GNU Make.  We use its extensions, so don't build without it
1011if test -z "$llvm_cv_gnu_make_command"
1012then
1013  AC_MSG_ERROR([GNU Make required but not found])
1014fi
1015
1016dnl Tool compatibility is okay if we make it here.
1017AC_MSG_RESULT([ok])
1018
1019dnl Check optional compiler flags.
1020AC_MSG_CHECKING([optional compiler flags])
1021CXX_FLAG_CHECK(NO_VARIADIC_MACROS, [-Wno-variadic-macros])
1022CXX_FLAG_CHECK(NO_MISSING_FIELD_INITIALIZERS, [-Wno-missing-field-initializers])
1023CXX_FLAG_CHECK(COVERED_SWITCH_DEFAULT, [-Wcovered-switch-default])
1024AC_MSG_RESULT([$NO_VARIADIC_MACROS $NO_MISSING_FIELD_INITIALIZERS $COVERED_SWITCH_DEFAULT])
1025
1026dnl===-----------------------------------------------------------------------===
1027dnl===
1028dnl=== SECTION 5: Check for libraries
1029dnl===
1030dnl===-----------------------------------------------------------------------===
1031
1032AC_CHECK_LIB(m,sin)
1033if test "$llvm_cv_os_type" = "MingW" ; then
1034  AC_CHECK_LIB(imagehlp, main)
1035  AC_CHECK_LIB(psapi, main)
1036fi
1037
1038dnl dlopen() is required for plugin support.
1039AC_SEARCH_LIBS(dlopen,dl,AC_DEFINE([HAVE_DLOPEN],[1],
1040               [Define if dlopen() is available on this platform.]),
1041               AC_MSG_WARN([dlopen() not found - disabling plugin support]))
1042
1043dnl libffi is optional; used to call external functions from the interpreter
1044if test "$llvm_cv_enable_libffi" = "yes" ; then
1045  AC_SEARCH_LIBS(ffi_call,ffi,AC_DEFINE([HAVE_FFI_CALL],[1],
1046                 [Define if libffi is available on this platform.]),
1047                 AC_MSG_ERROR([libffi not found - configure without --enable-libffi to compile without it]))
1048fi
1049
1050dnl mallinfo is optional; the code can compile (minus features) without it
1051AC_SEARCH_LIBS(mallinfo,malloc,AC_DEFINE([HAVE_MALLINFO],[1],
1052               [Define if mallinfo() is available on this platform.]))
1053
1054dnl pthread locking functions are optional - but llvm will not be thread-safe
1055dnl without locks.
1056if test "$ENABLE_THREADS" -eq 1 && test "$ENABLE_PTHREADS" -eq 1 ; then
1057  AC_CHECK_LIB(pthread, pthread_mutex_init)
1058  AC_SEARCH_LIBS(pthread_mutex_lock,pthread,
1059                 AC_DEFINE([HAVE_PTHREAD_MUTEX_LOCK],[1],
1060                           [Have pthread_mutex_lock]))
1061  AC_SEARCH_LIBS(pthread_rwlock_init,pthread,
1062                 AC_DEFINE([HAVE_PTHREAD_RWLOCK_INIT],[1],
1063                 [Have pthread_rwlock_init]))
1064  AC_SEARCH_LIBS(pthread_getspecific,pthread,
1065                 AC_DEFINE([HAVE_PTHREAD_GETSPECIFIC],[1],
1066                 [Have pthread_getspecific]))
1067fi
1068
1069dnl Allow extra x86-disassembler library
1070AC_ARG_WITH(udis86,
1071  AS_HELP_STRING([--with-udis86=<path>],
1072    [Use udis86 external x86 disassembler library]),
1073    [
1074      AC_SUBST(USE_UDIS86, [1])
1075      case "$withval" in
1076        /usr/lib|yes) ;;
1077        *) LDFLAGS="$LDFLAGS -L${withval}" ;;
1078      esac
1079      AC_CHECK_LIB(udis86, ud_init, [], [
1080        echo "Error! You need to have libudis86 around."
1081        exit -1
1082      ])
1083    ],
1084    AC_SUBST(USE_UDIS86, [0]))
1085AC_DEFINE_UNQUOTED([USE_UDIS86],$USE_UDIS86,
1086                   [Define if use udis86 library])
1087
1088dnl Allow OProfile support for JIT output.
1089AC_ARG_WITH(oprofile,
1090  AS_HELP_STRING([--with-oprofile=<prefix>],
1091    [Tell OProfile >= 0.9.4 how to symbolize JIT output]),
1092    [
1093      AC_SUBST(USE_OPROFILE, [1])
1094      case "$withval" in
1095        /usr|yes) llvm_cv_oppath=/usr/lib/oprofile ;;
1096        no) llvm_cv_oppath=
1097            AC_SUBST(USE_OPROFILE, [0]) ;;
1098        *) llvm_cv_oppath="${withval}/lib/oprofile"
1099           CPPFLAGS="-I${withval}/include";;
1100      esac
1101      if test -n "$llvm_cv_oppath" ; then
1102        LIBS="$LIBS -L${llvm_cv_oppath} -Wl,-rpath,${llvm_cv_oppath}"
1103        dnl Work around http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=537744:
1104        dnl libbfd is not included properly in libopagent in some Debian
1105        dnl versions.  If libbfd isn't found at all, we assume opagent works
1106        dnl anyway.
1107        AC_SEARCH_LIBS(bfd_init, bfd, [], [])
1108        AC_SEARCH_LIBS(op_open_agent, opagent, [], [
1109          echo "Error! You need to have libopagent around."
1110          exit -1
1111        ])
1112        AC_CHECK_HEADER([opagent.h], [], [
1113          echo "Error! You need to have opagent.h around."
1114          exit -1
1115          ])
1116      fi
1117    ],
1118    [
1119      AC_SUBST(USE_OPROFILE, [0])
1120    ])
1121AC_DEFINE_UNQUOTED([USE_OPROFILE],$USE_OPROFILE,
1122                   [Define if we have the oprofile JIT-support library])
1123
1124dnl===-----------------------------------------------------------------------===
1125dnl===
1126dnl=== SECTION 6: Check for header files
1127dnl===
1128dnl===-----------------------------------------------------------------------===
1129
1130dnl First, use autoconf provided macros for specific headers that we need
1131dnl We don't check for ancient stuff or things that are guaranteed to be there
1132dnl by the C++ standard. We always use the <cfoo> versions of <foo.h> C headers.
1133dnl Generally we're looking for POSIX headers.
1134AC_HEADER_DIRENT
1135AC_HEADER_MMAP_ANONYMOUS
1136AC_HEADER_STAT
1137AC_HEADER_SYS_WAIT
1138AC_HEADER_TIME
1139
1140AC_CHECK_HEADERS([dlfcn.h execinfo.h fcntl.h inttypes.h limits.h link.h])
1141AC_CHECK_HEADERS([malloc.h setjmp.h signal.h stdint.h termios.h unistd.h])
1142AC_CHECK_HEADERS([utime.h windows.h])
1143AC_CHECK_HEADERS([sys/mman.h sys/param.h sys/resource.h sys/time.h sys/uio.h])
1144AC_CHECK_HEADERS([sys/types.h sys/ioctl.h malloc/malloc.h mach/mach.h])
1145AC_CHECK_HEADERS([valgrind/valgrind.h])
1146AC_CHECK_HEADERS([fenv.h])
1147if test "$ENABLE_THREADS" -eq 1 && test "$ENABLE_PTHREADS" -eq 1 ; then
1148  AC_CHECK_HEADERS(pthread.h,
1149                   AC_SUBST(HAVE_PTHREAD, 1),
1150                   AC_SUBST(HAVE_PTHREAD, 0))
1151else
1152  AC_SUBST(HAVE_PTHREAD, 0)
1153fi
1154
1155dnl Try to find ffi.h.
1156if test "$llvm_cv_enable_libffi" = "yes" ; then
1157  AC_CHECK_HEADERS([ffi.h ffi/ffi.h])
1158fi
1159
1160dnl Try to find Darwin specific crash reporting libraries.
1161AC_CHECK_HEADERS([CrashReporterClient.h])
1162
1163dnl Try to find Darwin specific crash reporting global.
1164AC_MSG_CHECKING([__crashreporter_info__])
1165AC_LINK_IFELSE(
1166  AC_LANG_SOURCE(
1167    [[extern const char *__crashreporter_info__;
1168      int main() {
1169        __crashreporter_info__ = "test";
1170        return 0;
1171      }
1172    ]]),
1173  AC_MSG_RESULT(yes)
1174  AC_DEFINE(HAVE_CRASHREPORTER_INFO, 1, Can use __crashreporter_info__),
1175  AC_MSG_RESULT(no)
1176  AC_DEFINE(HAVE_CRASHREPORTER_INFO, 0,
1177            Define if __crashreporter_info__ exists.))
1178
1179dnl===-----------------------------------------------------------------------===
1180dnl===
1181dnl=== SECTION 7: Check for types and structures
1182dnl===
1183dnl===-----------------------------------------------------------------------===
1184
1185AC_HUGE_VAL_CHECK
1186AC_TYPE_PID_T
1187AC_TYPE_SIZE_T
1188AC_DEFINE_UNQUOTED([RETSIGTYPE],[void],[Define as the return type of signal handlers (`int' or `void').])
1189AC_STRUCT_TM
1190AC_CHECK_TYPES([int64_t],,AC_MSG_ERROR([Type int64_t required but not found]))
1191AC_CHECK_TYPES([uint64_t],,
1192         AC_CHECK_TYPES([u_int64_t],,
1193         AC_MSG_ERROR([Type uint64_t or u_int64_t required but not found])))
1194
1195dnl===-----------------------------------------------------------------------===
1196dnl===
1197dnl=== SECTION 8: Check for specific functions needed
1198dnl===
1199dnl===-----------------------------------------------------------------------===
1200
1201AC_CHECK_FUNCS([backtrace ceilf floorf roundf rintf nearbyintf getcwd ])
1202AC_CHECK_FUNCS([powf fmodf strtof round ])
1203AC_CHECK_FUNCS([getpagesize getrusage getrlimit setrlimit gettimeofday ])
1204AC_CHECK_FUNCS([isatty mkdtemp mkstemp ])
1205AC_CHECK_FUNCS([mktemp posix_spawn realpath sbrk setrlimit strdup ])
1206AC_CHECK_FUNCS([strerror strerror_r setenv ])
1207AC_CHECK_FUNCS([strtoll strtoq sysconf malloc_zone_statistics ])
1208AC_CHECK_FUNCS([setjmp longjmp sigsetjmp siglongjmp writev])
1209AC_C_PRINTF_A
1210AC_FUNC_RAND48
1211
1212dnl Check the declaration "Secure API" on Windows environments.
1213AC_CHECK_DECLS([strerror_s])
1214
1215dnl Check symbols in libgcc.a for JIT on Mingw.
1216if test "$llvm_cv_os_type" = "MingW" ; then
1217  AC_CHECK_LIB(gcc,_alloca,AC_DEFINE([HAVE__ALLOCA],[1],[Have host's _alloca]))
1218  AC_CHECK_LIB(gcc,__alloca,AC_DEFINE([HAVE___ALLOCA],[1],[Have host's __alloca]))
1219  AC_CHECK_LIB(gcc,__chkstk,AC_DEFINE([HAVE___CHKSTK],[1],[Have host's __chkstk]))
1220  AC_CHECK_LIB(gcc,___chkstk,AC_DEFINE([HAVE____CHKSTK],[1],[Have host's ___chkstk]))
1221
1222  AC_CHECK_LIB(gcc,__ashldi3,AC_DEFINE([HAVE___ASHLDI3],[1],[Have host's __ashldi3]))
1223  AC_CHECK_LIB(gcc,__ashrdi3,AC_DEFINE([HAVE___ASHRDI3],[1],[Have host's __ashrdi3]))
1224  AC_CHECK_LIB(gcc,__divdi3,AC_DEFINE([HAVE___DIVDI3],[1],[Have host's __divdi3]))
1225  AC_CHECK_LIB(gcc,__fixdfdi,AC_DEFINE([HAVE___FIXDFDI],[1],[Have host's __fixdfdi]))
1226  AC_CHECK_LIB(gcc,__fixsfdi,AC_DEFINE([HAVE___FIXSFDI],[1],[Have host's __fixsfdi]))
1227  AC_CHECK_LIB(gcc,__floatdidf,AC_DEFINE([HAVE___FLOATDIDF],[1],[Have host's __floatdidf]))
1228  AC_CHECK_LIB(gcc,__lshrdi3,AC_DEFINE([HAVE___LSHRDI3],[1],[Have host's __lshrdi3]))
1229  AC_CHECK_LIB(gcc,__moddi3,AC_DEFINE([HAVE___MODDI3],[1],[Have host's __moddi3]))
1230  AC_CHECK_LIB(gcc,__udivdi3,AC_DEFINE([HAVE___UDIVDI3],[1],[Have host's __udivdi3]))
1231  AC_CHECK_LIB(gcc,__umoddi3,AC_DEFINE([HAVE___UMODDI3],[1],[Have host's __umoddi3]))
1232
1233  AC_CHECK_LIB(gcc,__main,AC_DEFINE([HAVE___MAIN],[1],[Have host's __main]))
1234  AC_CHECK_LIB(gcc,__cmpdi2,AC_DEFINE([HAVE___CMPDI2],[1],[Have host's __cmpdi2]))
1235fi
1236
1237dnl Check Win32 API EnumerateLoadedModules.
1238if test "$llvm_cv_os_type" = "MingW" ; then
1239  AC_MSG_CHECKING([whether EnumerateLoadedModules() accepts new decl])
1240  AC_COMPILE_IFELSE([[#include <windows.h>
1241#include <imagehlp.h>
1242extern void foo(PENUMLOADED_MODULES_CALLBACK);
1243extern void foo(BOOL(CALLBACK*)(PCSTR,ULONG_PTR,ULONG,PVOID));]],
1244[
1245  AC_MSG_RESULT([yes])
1246  llvm_cv_win32_elmcb_pcstr="PCSTR"
1247],
1248[
1249  AC_MSG_RESULT([no])
1250  llvm_cv_win32_elmcb_pcstr="PSTR"
1251])
1252  AC_DEFINE_UNQUOTED([WIN32_ELMCB_PCSTR],$llvm_cv_win32_elmcb_pcstr,[Type of 1st arg on ELM Callback])
1253fi
1254
1255dnl Check for variations in the Standard C++ library and STL. These macros are
1256dnl provided by LLVM in the autoconf/m4 directory.
1257AC_FUNC_ISNAN
1258AC_FUNC_ISINF
1259
1260dnl Check for mmap support.We also need to know if /dev/zero is required to
1261dnl be opened for allocating RWX memory.
1262dnl Make sure we aren't attempting to configure for an unknown system
1263if test "$llvm_cv_platform_type" = "Unix" ; then
1264  AC_FUNC_MMAP
1265  AC_FUNC_MMAP_FILE
1266  AC_NEED_DEV_ZERO_FOR_MMAP
1267
1268  if test "$ac_cv_func_mmap_fixed_mapped" = "no"
1269  then
1270    AC_MSG_WARN([mmap() of a fixed address required but not supported])
1271  fi
1272  if test "$ac_cv_func_mmap_file" = "no"
1273  then
1274    AC_MSG_WARN([mmap() of files required but not found])
1275  fi
1276fi
1277
1278dnl atomic builtins are required for threading support.
1279AC_MSG_CHECKING(for GCC atomic builtins)
1280dnl Since we'll be using these atomic builtins in C++ files we should test
1281dnl the C++ compiler.
1282AC_LANG_PUSH([C++])
1283AC_LINK_IFELSE(
1284  AC_LANG_SOURCE(
1285    [[int main() {
1286        volatile unsigned long val = 1;
1287        __sync_synchronize();
1288        __sync_val_compare_and_swap(&val, 1, 0);
1289        __sync_add_and_fetch(&val, 1);
1290        __sync_sub_and_fetch(&val, 1);
1291        return 0;
1292      }
1293    ]]),
1294  AC_LANG_POP([C++])
1295  AC_MSG_RESULT(yes)
1296  AC_DEFINE(LLVM_HAS_ATOMICS, 1, Has gcc/MSVC atomic intrinsics),
1297  AC_MSG_RESULT(no)
1298  AC_DEFINE(LLVM_HAS_ATOMICS, 0, Has gcc/MSVC atomic intrinsics)
1299  AC_MSG_WARN([LLVM will be built thread-unsafe because atomic builtins are missing]))
1300
1301dnl===-----------------------------------------------------------------------===
1302dnl===
1303dnl=== SECTION 9: Additional checks, variables, etc.
1304dnl===
1305dnl===-----------------------------------------------------------------------===
1306
1307dnl Handle 32-bit linux systems running a 64-bit kernel.
1308dnl This has to come after section 4 because it invokes the compiler.
1309if test "$llvm_cv_os_type" = "Linux" -a "$llvm_cv_target_arch" = "x86_64" ; then
1310  AC_IS_LINUX_MIXED
1311  if test "$llvm_cv_linux_mixed" = "yes"; then
1312    llvm_cv_target_arch="x86"
1313    ARCH="x86"
1314  fi
1315fi
1316
1317dnl Check whether __dso_handle is present
1318AC_CHECK_FUNCS([__dso_handle])
1319
1320dnl Propagate the shared library extension that the libltdl checks did to
1321dnl the Makefiles so we can use it there too
1322AC_SUBST(SHLIBEXT,$libltdl_cv_shlibext)
1323
1324dnl Propagate the run-time library path variable that the libltdl
1325dnl checks found to the Makefiles so we can use it there too
1326AC_SUBST(SHLIBPATH_VAR,$libltdl_cv_shlibpath_var)
1327
1328# Translate the various configuration directories and other basic
1329# information into substitutions that will end up in Makefile.config.in
1330# that these configured values can be used by the makefiles
1331if test "${prefix}" = "NONE" ; then
1332  prefix="/usr/local"
1333fi
1334eval LLVM_PREFIX="${prefix}";
1335eval LLVM_BINDIR="${prefix}/bin";
1336eval LLVM_LIBDIR="${prefix}/lib";
1337eval LLVM_DATADIR="${prefix}/share/llvm";
1338eval LLVM_DOCSDIR="${prefix}/share/doc/llvm";
1339eval LLVM_ETCDIR="${prefix}/etc/llvm";
1340eval LLVM_INCLUDEDIR="${prefix}/include";
1341eval LLVM_INFODIR="${prefix}/info";
1342eval LLVM_MANDIR="${prefix}/man";
1343LLVM_CONFIGTIME=`date`
1344AC_SUBST(LLVM_PREFIX)
1345AC_SUBST(LLVM_BINDIR)
1346AC_SUBST(LLVM_LIBDIR)
1347AC_SUBST(LLVM_DATADIR)
1348AC_SUBST(LLVM_DOCSDIR)
1349AC_SUBST(LLVM_ETCDIR)
1350AC_SUBST(LLVM_INCLUDEDIR)
1351AC_SUBST(LLVM_INFODIR)
1352AC_SUBST(LLVM_MANDIR)
1353AC_SUBST(LLVM_CONFIGTIME)
1354
1355# Place the various directores into the config.h file as #defines so that we
1356# can know about the installation paths within LLVM.
1357AC_DEFINE_UNQUOTED(LLVM_PREFIX,"$LLVM_PREFIX",
1358                   [Installation prefix directory])
1359AC_DEFINE_UNQUOTED(LLVM_BINDIR, "$LLVM_BINDIR",
1360                   [Installation directory for binary executables])
1361AC_DEFINE_UNQUOTED(LLVM_LIBDIR, "$LLVM_LIBDIR",
1362                   [Installation directory for libraries])
1363AC_DEFINE_UNQUOTED(LLVM_DATADIR, "$LLVM_DATADIR",
1364                   [Installation directory for data files])
1365AC_DEFINE_UNQUOTED(LLVM_DOCSDIR, "$LLVM_DOCSDIR",
1366                   [Installation directory for documentation])
1367AC_DEFINE_UNQUOTED(LLVM_ETCDIR, "$LLVM_ETCDIR",
1368                   [Installation directory for config files])
1369AC_DEFINE_UNQUOTED(LLVM_INCLUDEDIR, "$LLVM_INCLUDEDIR",
1370                   [Installation directory for include files])
1371AC_DEFINE_UNQUOTED(LLVM_INFODIR, "$LLVM_INFODIR",
1372                   [Installation directory for .info files])
1373AC_DEFINE_UNQUOTED(LLVM_MANDIR, "$LLVM_MANDIR",
1374                   [Installation directory for man pages])
1375AC_DEFINE_UNQUOTED(LLVM_CONFIGTIME, "$LLVM_CONFIGTIME",
1376                   [Time at which LLVM was configured])
1377AC_DEFINE_UNQUOTED(LLVM_DEFAULT_TARGET_TRIPLE, "$target",
1378                   [Target triple LLVM will generate code for by default])
1379
1380# Determine which bindings to build.
1381if test "$BINDINGS_TO_BUILD" = auto ; then
1382  BINDINGS_TO_BUILD=""
1383  if test "x$OCAMLC" != x -a "x$OCAMLDEP" != x ; then
1384    BINDINGS_TO_BUILD="ocaml $BINDINGS_TO_BUILD"
1385  fi
1386fi
1387AC_SUBST(BINDINGS_TO_BUILD,$BINDINGS_TO_BUILD)
1388
1389# This isn't really configurey, but it avoids having to repeat the list in
1390# other files.
1391AC_SUBST(ALL_BINDINGS,ocaml)
1392
1393# Do any work necessary to ensure that bindings have what they need.
1394binding_prereqs_failed=0
1395for a_binding in $BINDINGS_TO_BUILD ; do
1396  case "$a_binding" in
1397  ocaml)
1398    if test "x$OCAMLC" = x ; then
1399      AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamlc not found. Try configure OCAMLC=/path/to/ocamlc])
1400      binding_prereqs_failed=1
1401    fi
1402    if test "x$OCAMLDEP" = x ; then
1403      AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamldep not found. Try configure OCAMLDEP=/path/to/ocamldep])
1404      binding_prereqs_failed=1
1405    fi
1406    if test "x$OCAMLOPT" = x ; then
1407      AC_MSG_WARN([--enable-bindings=ocaml specified, but ocamlopt not found. Try configure OCAMLOPT=/path/to/ocamlopt])
1408      dnl ocamlopt is optional!
1409    fi
1410    if test "x$with_ocaml_libdir" != xauto ; then
1411      AC_SUBST(OCAML_LIBDIR,$with_ocaml_libdir)
1412    else
1413      ocaml_stdlib="`"$OCAMLC" -where`"
1414      if test "$LLVM_PREFIX" '<' "$ocaml_stdlib" -a "$ocaml_stdlib" '<' "$LLVM_PREFIX~"
1415      then
1416        # ocaml stdlib is beneath our prefix; use stdlib
1417        AC_SUBST(OCAML_LIBDIR,$ocaml_stdlib)
1418      else
1419        # ocaml stdlib is outside our prefix; use libdir/ocaml
1420        AC_SUBST(OCAML_LIBDIR,$LLVM_LIBDIR/ocaml)
1421      fi
1422    fi
1423    ;;
1424  esac
1425done
1426if test "$binding_prereqs_failed" = 1 ; then
1427  AC_MSG_ERROR([Prequisites for bindings not satisfied. Fix them or use configure --disable-bindings.])
1428fi
1429
1430dnl Determine whether the compiler supports -fvisibility-inlines-hidden.
1431AC_CXX_USE_VISIBILITY_INLINES_HIDDEN
1432
1433dnl Determine linker rpath flag
1434if test "$llvm_cv_link_use_r" = "yes" ; then
1435  RPATH="-Wl,-R"
1436else
1437  RPATH="-Wl,-rpath"
1438fi
1439AC_SUBST(RPATH)
1440
1441dnl Determine linker rdynamic flag
1442if test "$llvm_cv_link_use_export_dynamic" = "yes" ; then
1443  RDYNAMIC="-Wl,-export-dynamic"
1444else
1445  RDYNAMIC=""
1446fi
1447AC_SUBST(RDYNAMIC)
1448
1449dnl===-----------------------------------------------------------------------===
1450dnl===
1451dnl=== SECTION 10: Specify the output files and generate it
1452dnl===
1453dnl===-----------------------------------------------------------------------===
1454
1455dnl **************************************************************************
1456dnl End LLVM configure.ac Import
1457dnl **************************************************************************
1458
1459dnl Configure a common Makefile
1460AC_CONFIG_FILES(Makefile.common)
1461AC_CONFIG_FILES(Makefile.llvm.config)
1462
1463dnl Configure project makefiles
1464dnl List every Makefile that exists within your source tree
1465AC_CONFIG_MAKEFILE(Makefile)
1466AC_CONFIG_MAKEFILE(lib/Makefile)
1467AC_CONFIG_MAKEFILE(lib/sample/Makefile)
1468AC_CONFIG_MAKEFILE(tools/Makefile)
1469AC_CONFIG_MAKEFILE(tools/sample/Makefile)
1470
1471dnl This must be last
1472AC_OUTPUT
1473