1dnl Process this file with autoconf to produce a configure script
2dnl
3AC_PREREQ(2.59)
4AC_INIT
5AC_CONFIG_SRCDIR(ldmain.c)
6
7AC_CANONICAL_TARGET
8AC_ISC_POSIX
9
10changequote(,)dnl
11BFD_VERSION=`sed -n -e 's/^.._INIT_AUTOMAKE.*,[ 	]*\([^ 	]*\)[ 	]*).*/\1/p' < ${srcdir}/../bfd/configure.in`
12changequote([,])dnl
13AM_INIT_AUTOMAKE(ld, ${BFD_VERSION})
14AM_MAINTAINER_MODE
15
16AC_ARG_WITH(lib-path, [  --with-lib-path=dir1:dir2...  set default LIB_PATH],LIB_PATH=$withval)
17AC_ARG_ENABLE(targets,
18[  --enable-targets        alternative target configurations],
19[case "${enableval}" in
20  yes | "") AC_MSG_ERROR(enable-targets option must specify target names or 'all')
21            ;;
22  no)       enable_targets= ;;
23  *)        enable_targets=$enableval ;;
24esac])dnl
25AC_ARG_ENABLE(64-bit-bfd,
26[  --enable-64-bit-bfd     64-bit support (on hosts with narrower word sizes)],
27[case "${enableval}" in
28  yes)  want64=true  ;;
29  no)   want64=false ;;
30  *)    AC_MSG_ERROR(bad value ${enableval} for 64-bit-bfd option) ;;
31esac],[want64=false])dnl
32
33AC_ARG_WITH(sysroot,
34[  --with-sysroot[=DIR] Search for usr/lib et al within DIR.],
35[
36 case ${with_sysroot} in
37 yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_alias}/sys-root' ;;
38 *) TARGET_SYSTEM_ROOT=$with_sysroot ;;
39 esac
40
41 TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"'
42 use_sysroot=yes
43
44 if test "x$prefix" = xNONE; then
45  test_prefix=/usr/local
46 else
47  test_prefix=$prefix
48 fi
49 if test "x$exec_prefix" = xNONE; then
50  test_exec_prefix=$test_prefix
51 else
52  test_exec_prefix=$exec_prefix
53 fi
54 case ${TARGET_SYSTEM_ROOT} in
55 "${test_prefix}"|"${test_prefix}/"*|\
56 "${test_exec_prefix}"|"${test_exec_prefix}/"*|\
57 '${prefix}'|'${prefix}/'*|\
58 '${exec_prefix}'|'${exec_prefix}/'*)
59   t="$TARGET_SYSTEM_ROOT_DEFINE -DTARGET_SYSTEM_ROOT_RELOCATABLE"
60   TARGET_SYSTEM_ROOT_DEFINE="$t"
61   ;;
62 esac
63], [
64 use_sysroot=no
65 TARGET_SYSTEM_ROOT=
66 TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"\"'
67])
68AC_SUBST(use_sysroot)
69AC_SUBST(TARGET_SYSTEM_ROOT)
70AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE)
71
72dnl Use --enable-gold to decide if this linker should be the default.
73dnl "install_as_default" is set to false if gold is the default linker.
74dnl "installed_linker" is the installed BFD linker name.
75AC_ARG_ENABLE(gold,
76[[  --enable-gold[=ARG]     build gold [ARG={default,yes,no}]]],
77[case "${enableval}" in 
78 default)
79   install_as_default=no
80   installed_linker=ld.bfd
81   ;;
82 yes|no)
83   install_as_default=yes
84   installed_linker=ld.bfd
85   ;;
86 *)
87   AC_MSG_ERROR([invalid --enable-gold argument])
88   ;;
89 esac],
90[install_as_default=yes
91 installed_linker=ld.bfd])
92AC_SUBST(install_as_default)
93AC_SUBST(installed_linker)
94
95AC_ARG_ENABLE([got],
96AS_HELP_STRING([--enable-got=<type>],
97               [GOT handling scheme (target, single, negative, multigot)]),
98[case "${enableval}" in
99  target | single | negative | multigot)  got_handling=$enableval ;;
100  *)  AC_MSG_ERROR(bad value ${enableval} for --enable-got option) ;;
101esac],
102[got_handling=target])
103
104case "${got_handling}" in
105  target)
106    AC_DEFINE([GOT_HANDLING_DEFAULT], [GOT_HANDLING_TARGET_DEFAULT],
107              [Define to choose default GOT handling scheme]) ;;
108  single)
109    AC_DEFINE([GOT_HANDLING_DEFAULT], [GOT_HANDLING_SINGLE],
110              [Define to choose default GOT handling scheme]) ;;
111  negative)
112    AC_DEFINE([GOT_HANDLING_DEFAULT], [GOT_HANDLING_NEGATIVE],
113              [Define to choose default GOT handling scheme]) ;;
114  multigot)
115    AC_DEFINE([GOT_HANDLING_DEFAULT], [GOT_HANDLING_MULTIGOT],
116              [Define to choose default GOT handling scheme]) ;;
117  *)  AC_MSG_ERROR(bad value ${got_handling} for --enable-got option) ;;
118esac
119
120AM_BINUTILS_WARNINGS
121
122AC_CONFIG_HEADERS([config.h:config.in])
123
124if test -z "$target" ; then
125    AC_MSG_ERROR(Unrecognized target system type; please check config.sub.)
126fi
127if test -z "$host" ; then
128    AC_MSG_ERROR(Unrecognized host system type; please check config.sub.)
129fi
130
131# host-specific stuff:
132
133AC_PROG_CC
134AC_PROG_CXX
135AC_GNU_SOURCE
136AC_USE_SYSTEM_EXTENSIONS
137ACX_LARGEFILE
138AC_PROG_INSTALL
139
140LT_INIT
141
142ALL_LINGUAS="fr sv tr es da vi zh_CN zh_TW ga fi id bg"
143ZW_GNU_GETTEXT_SISTER_DIR
144AM_PO_SUBDIRS
145
146AC_EXEEXT
147
148AC_PROG_YACC
149AM_PROG_LEX
150
151AM_MAINTAINER_MODE
152AM_CONDITIONAL(GENINSRC_NEVER, false)
153ACX_PROG_CMP_IGNORE_INITIAL
154
155. ${srcdir}/configure.host
156
157AC_SUBST(HDEFINES)
158AC_SUBST(HOSTING_CRT0)
159AC_SUBST(HOSTING_LIBS)
160AC_SUBST(NATIVE_LIB_DIRS)
161
162AC_CHECK_HEADERS(string.h strings.h stdlib.h unistd.h elf-hints.h limits.h sys/param.h)
163AC_CHECK_HEADERS(fcntl.h sys/file.h sys/time.h sys/stat.h)
164AC_CHECK_FUNCS(glob mkstemp realpath sbrk waitpid)
165AC_CHECK_FUNCS(open lseek close)
166AC_HEADER_DIRENT
167
168# Check for dlopen support and enable plugins if possible.
169enable_plugins=yes
170AC_CHECK_HEADER([dlfcn.h],[],[enable_plugins=no],[AC_INCLUDES_DEFAULT])
171AC_SEARCH_LIBS([dlopen],[dl],[],[enable_plugins=no],[])
172AC_CHECK_FUNCS([dlopen dlsym dlclose],[],[enable_plugins=no])
173# We also support plugins on Windows (MinGW).
174if test x$enable_plugins = xno ; then
175  AC_CHECK_HEADERS([Windows.h],[enable_plugins=yes],[],[AC_INCLUDES_DEFAULT])
176fi
177AM_CONDITIONAL([ENABLE_PLUGINS], [test x$enable_plugins = xyes])
178
179AC_MSG_CHECKING(for a known getopt prototype in unistd.h)
180AC_CACHE_VAL(ld_cv_decl_getopt_unistd_h,
181[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <unistd.h>], [extern int getopt (int, char *const*, const char *);])],
182ld_cv_decl_getopt_unistd_h=yes, ld_cv_decl_getopt_unistd_h=no)])
183AC_MSG_RESULT($ld_cv_decl_getopt_unistd_h)
184if test $ld_cv_decl_getopt_unistd_h = yes; then
185  AC_DEFINE([HAVE_DECL_GETOPT], 1,
186	    [Is the prototype for getopt in <unistd.h> in the expected format?])
187fi
188	
189BFD_BINARY_FOPEN
190
191AC_CHECK_DECLS([strstr, free, sbrk, getenv, environ])
192
193# Link in zlib if we can.  This is needed only for the bootstrap tests
194# right now, since those tests use libbfd, which depends on zlib.
195AC_SEARCH_LIBS(zlibVersion, z, [AC_CHECK_HEADERS(zlib.h)])
196
197# When converting linker scripts into strings for use in emulation
198# files, use astring.sed if the compiler supports ANSI string
199# concatenation, or ostring.sed otherwise.  This is to support the
200# broken Microsoft MSVC compiler, which limits the length of string
201# constants, while still supporting pre-ANSI compilers which do not
202# support string concatenation.
203AC_MSG_CHECKING([whether ANSI C string concatenation works])
204AC_CACHE_VAL(ld_cv_string_concatenation,
205[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [char *a = "a" "a";])],
206  ld_cv_string_concatenation=yes,
207  ld_cv_string_concatenation=no)])
208AC_MSG_RESULT($ld_cv_string_concatenation)
209if test "$ld_cv_string_concatenation" = "yes"; then
210  STRINGIFY=astring.sed
211else
212  STRINGIFY=ostring.sed
213fi
214AC_SUBST(STRINGIFY)
215
216# target-specific stuff:
217
218all_targets=
219EMUL=
220all_emuls=
221all_emul_extras=
222all_libpath=
223
224dnl We need to get an arbitrary number of tdir definitions into
225dnl Makefile.  We can't do it using AC_SUBST, because autoconf does
226dnl not permit literal newlines in an AC_SUBST variables.  So we use a
227dnl file.
228rm -f tdirs
229
230for targ_alias in `echo $target_alias $enable_targets | sed 's/,/ /g'`
231do
232  if test "$targ_alias" = "all"; then
233    all_targets=true
234  else
235    # Canonicalize the secondary target names.
236    result=`$ac_config_sub $targ_alias 2>/dev/null`
237    if test -n "$result"; then
238	targ=$result
239    else
240	targ=$targ_alias
241    fi
242
243    . ${srcdir}/configure.tgt
244
245    if test "$targ" = "$target"; then
246      EMUL=$targ_emul
247    fi
248
249    if test x${want64} = xfalse; then
250      . ${srcdir}/../bfd/config.bfd
251    fi
252
253    if test x${want64} = xtrue; then
254      targ_extra_emuls="$targ_extra_emuls $targ64_extra_emuls"
255      targ_extra_libpath="$targ_extra_libpath $targ64_extra_libpath"
256    fi
257
258    for i in $targ_emul $targ_extra_emuls $targ_extra_libpath; do
259	case " $all_emuls " in
260	*" e${i}.o "*) ;;
261	*)
262	  all_emuls="$all_emuls e${i}.o"
263	  eval result=\$tdir_$i
264	  test -z "$result" && result=$targ_alias
265	  echo tdir_$i=$result >> tdirs
266	  ;;
267	esac
268    done
269
270    for i in $targ_emul $targ_extra_libpath; do
271	case " $all_libpath " in
272	*" ${i} "*) ;;
273	*)
274	  if test -z "$all_libpath"; then
275	    all_libpath=${i}
276	  else
277	    all_libpath="$all_libpath ${i}"
278	  fi
279	  ;;
280	esac
281    done
282
283    for i in $targ_extra_ofiles; do
284	case " $all_emul_extras " in
285	*" ${i} "*) ;;
286	*)
287	  all_emul_extras="$all_emul_extras ${i}"
288	  ;;
289	esac
290    done
291  fi
292done
293
294AC_SUBST(EMUL)
295
296TDIRS=tdirs
297AC_SUBST_FILE(TDIRS)
298
299if test x${all_targets} = xtrue; then
300  if test x${want64} = xfalse; then
301    AC_CHECK_SIZEOF(long)
302    if test "x${ac_cv_sizeof_long}" = "x8"; then
303      want64=true
304    fi
305  fi
306  if test x${want64} = xtrue; then
307    EMULATION_OFILES='$(ALL_EMULATIONS) $(ALL_64_EMULATIONS)'
308  else
309    EMULATION_OFILES='$(ALL_EMULATIONS)'
310  fi
311  EMUL_EXTRA_OFILES='$(ALL_EMUL_EXTRA_OFILES)'
312else
313  EMULATION_OFILES=$all_emuls
314  EMUL_EXTRA_OFILES=$all_emul_extras
315fi
316AC_SUBST(EMULATION_OFILES)
317AC_SUBST(EMUL_EXTRA_OFILES)
318AC_SUBST(LIB_PATH)
319
320EMULATION_LIBPATH=$all_libpath
321AC_SUBST(EMULATION_LIBPATH)
322
323if test x${enable_static} = xno; then
324  TESTBFDLIB="--rpath ../bfd/.libs ../bfd/.libs/libbfd.so"
325else
326  TESTBFDLIB="../bfd/.libs/libbfd.a"
327fi
328AC_SUBST(TESTBFDLIB)
329
330target_vendor=${target_vendor=$host_vendor}
331case "$target_vendor" in
332  hp) EXTRA_SHLIB_EXTENSION=".sl" ;;
333  *)  EXTRA_SHLIB_EXTENSION= ;;
334esac
335
336case "$target_os" in
337  lynxos) EXTRA_SHLIB_EXTENSION=".a" ;;
338esac
339
340if test x${EXTRA_SHLIB_EXTENSION} != x ; then
341  AC_DEFINE_UNQUOTED(EXTRA_SHLIB_EXTENSION, "$EXTRA_SHLIB_EXTENSION",
342   [Additional extension a shared object might have.])
343fi
344
345dnl Required by html, pdf, install-pdf and install-html
346AC_SUBST(datarootdir)
347AC_SUBST(docdir)
348AC_SUBST(htmldir)
349AC_SUBST(pdfdir)
350
351AC_CONFIG_FILES(Makefile po/Makefile.in:po/Make-in)
352AC_OUTPUT
353