1dnl Process this with autoconf to create configure 2 3AC_PREREQ(2.59) 4 5AC_INIT([libffi], [2.1], [http://gcc.gnu.org/bugs.html]) 6AC_CONFIG_HEADERS([fficonfig.h]) 7 8AM_ENABLE_MULTILIB(, .., .) 9if test a = b; then 10 # This is for automake 11 AC_CONFIG_AUX_DIR([..], [.]) 12else 13 # and this is for autoconf 14 AC_CONFIG_AUX_DIRS(${multi_basedir}) 15 fi 16 17AC_CANONICAL_SYSTEM 18target_alias=${target_alias-$host_alias} 19 20AM_INIT_AUTOMAKE 21 22# The same as in boehm-gc and libstdc++. Have to borrow it from there. 23# We must force CC to /not/ be precious variables; otherwise 24# the wrong, non-multilib-adjusted value will be used in multilibs. 25# As a side effect, we have to subst CFLAGS ourselves. 26 27m4_rename([_AC_ARG_VAR_PRECIOUS],[real_PRECIOUS]) 28m4_define([_AC_ARG_VAR_PRECIOUS],[]) 29AC_PROG_CC 30m4_rename([real_PRECIOUS],[_AC_ARG_VAR_PRECIOUS]) 31 32AC_SUBST(CFLAGS) 33 34AM_PROG_AS 35AM_PROG_CC_C_O 36AC_PROG_LIBTOOL 37 38AM_MAINTAINER_MODE 39 40AC_CHECK_HEADERS(sys/mman.h) 41AC_CHECK_FUNCS(mmap) 42AC_FUNC_MMAP_BLACKLIST 43 44dnl The -no-testsuite modules omit the test subdir. 45AM_CONDITIONAL(TESTSUBDIR, test -d $srcdir/testsuite) 46 47TARGETDIR="unknown" 48case "$host" in 49i*86-*-darwin*) TARGET=X86_DARWIN; TARGETDIR=x86;; 50i*86-*-linux*) TARGET=X86; TARGETDIR=x86;; 51i*86-*-solaris*) TARGET=X86; TARGETDIR=x86;; 52i*86-*-beos*) TARGET=X86; TARGETDIR=x86;; 53i*86-*-freebsd*) TARGET=X86; TARGETDIR=x86;; 54i*86-*-netbsdelf*) TARGET=X86; TARGETDIR=x86;; 55i*86-*-win32*) TARGET=X86_WIN32; TARGETDIR=x86;; 56i*86-*-cygwin*) TARGET=X86_WIN32; TARGETDIR=x86;; 57i*86-*-mingw*) TARGET=X86_WIN32; TARGETDIR=x86;; 58sparc-sun-4*) TARGET=SPARC; TARGETDIR=sparc;; 59sparc*-sun-*) TARGET=SPARC; TARGETDIR=sparc;; 60sparc-*-linux* | sparc-*-netbsdelf*) TARGET=SPARC; TARGETDIR=sparc;; 61sparc64-*-linux* | sparc64-*-netbsd*) TARGET=SPARC; TARGETDIR=sparc;; 62alpha*-*-linux* | alpha*-*-osf* | alpha*-*-freebsd* | alpha*-*-netbsd*) TARGET=ALPHA; TARGETDIR=alpha;; 63ia64*-*-*) TARGET=IA64; TARGETDIR=ia64;; 64m68k-*-linux*) TARGET=M68K; TARGETDIR=m68k;; 65mips64*-*);; 66mips-sgi-irix5.* | mips-sgi-irix6.*) TARGET=MIPS_IRIX; TARGETDIR=mips;; 67mips*-*-linux*) TARGET=MIPS_LINUX; TARGETDIR=mips;; 68powerpc*-*-linux* | powerpc-*-sysv*) TARGET=POWERPC; TARGETDIR=powerpc;; 69powerpc-*-beos*) TARGET=POWERPC; TARGETDIR=powerpc;; 70powerpc-*-darwin*) TARGET=POWERPC_DARWIN; TARGETDIR=powerpc;; 71powerpc-*-aix*) TARGET=POWERPC_AIX; TARGETDIR=powerpc;; 72rs6000-*-aix*) TARGET=POWERPC_AIX; TARGETDIR=powerpc;; 73arm*-*-linux-*) TARGET=ARM; TARGETDIR=arm;; 74arm*-*-netbsdelf*) TARGET=ARM; TARGETDIR=arm;; 75s390-*-linux-*) TARGET=S390; TARGETDIR=s390;; 76s390x-*-linux-*) TARGET=S390; TARGETDIR=s390;; 77x86_64-*-linux*) TARGET=X86_64; TARGETDIR=x86;; 78sh-*-linux* | sh[[34]]*-*-linux*) TARGET=SH; TARGETDIR=sh;; 79sh64-*-linux* | sh5*-*-linux*) TARGET=SH64; TARGETDIR=sh64;; 80hppa-*-linux* | parisc-*-linux*) TARGET=PA; TARGETDIR=pa;; 81esac 82 83AC_SUBST(AM_RUNTESTFLAGS) 84 85if test $TARGETDIR = unknown; then 86 AC_MSG_ERROR(["libffi has not been ported to $host."]) 87fi 88 89AM_CONDITIONAL(MIPS_IRIX, test x$TARGET = xMIPS_IRIX) 90AM_CONDITIONAL(MIPS_LINUX, test x$TARGET = xMIPS_LINUX) 91AM_CONDITIONAL(SPARC, test x$TARGET = xSPARC) 92AM_CONDITIONAL(X86, test x$TARGET = xX86) 93AM_CONDITIONAL(X86_WIN32, test x$TARGET = xX86_WIN32) 94AM_CONDITIONAL(X86_DARWIN, test x$TARGET = xX86_DARWIN) 95AM_CONDITIONAL(ALPHA, test x$TARGET = xALPHA) 96AM_CONDITIONAL(IA64, test x$TARGET = xIA64) 97AM_CONDITIONAL(M68K, test x$TARGET = xM68K) 98AM_CONDITIONAL(POWERPC, test x$TARGET = xPOWERPC) 99AM_CONDITIONAL(POWERPC_AIX, test x$TARGET = xPOWERPC_AIX) 100AM_CONDITIONAL(POWERPC_DARWIN, test x$TARGET = xPOWERPC_DARWIN) 101AM_CONDITIONAL(ARM, test x$TARGET = xARM) 102AM_CONDITIONAL(S390, test x$TARGET = xS390) 103AM_CONDITIONAL(X86_64, test x$TARGET = xX86_64) 104AM_CONDITIONAL(SH, test x$TARGET = xSH) 105AM_CONDITIONAL(SH64, test x$TARGET = xSH64) 106AM_CONDITIONAL(PA, test x$TARGET = xPA) 107 108case x$TARGET in 109 xMIPS*) TARGET=MIPS ;; 110 *) ;; 111esac 112 113AC_HEADER_STDC 114AC_CHECK_FUNCS(memcpy) 115AC_FUNC_ALLOCA 116 117AC_COMPILE_CHECK_SIZEOF(double) 118AC_COMPILE_CHECK_SIZEOF(long double) 119 120# Also AC_SUBST this variable for ffi.h. 121HAVE_LONG_DOUBLE=0 122if test $ac_cv_sizeof_double != $ac_cv_sizeof_long_double; then 123 if test $ac_cv_sizeof_long_double != 0; then 124 HAVE_LONG_DOUBLE=1 125 AC_DEFINE(HAVE_LONG_DOUBLE, 1, [Define if you have the long double type and it is bigger than a double]) 126 fi 127fi 128AC_SUBST(HAVE_LONG_DOUBLE) 129 130AC_C_BIGENDIAN_CROSS 131 132if test x$TARGET = xSPARC; then 133 AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs], 134 libffi_cv_as_sparc_ua_pcrel, [ 135 save_CFLAGS="$CFLAGS" 136 save_LDFLAGS="$LDFLAGS" 137 CFLAGS="$CFLAGS -fpic" 138 LDFLAGS="$LDFLAGS -shared" 139 AC_TRY_LINK([asm (".text; foo: nop; .data; .align 4; .byte 0; .uaword %r_disp32(foo); .text");],, 140 [libffi_cv_as_sparc_ua_pcrel=yes], 141 [libffi_cv_as_sparc_ua_pcrel=no]) 142 CFLAGS="$save_CFLAGS" 143 LDFLAGS="$save_LDFLAGS"]) 144 if test "x$libffi_cv_as_sparc_ua_pcrel" = xyes; then 145 AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1, 146 [Define if your assembler and linker support unaligned PC relative relocs.]) 147 fi 148 149 AC_CACHE_CHECK([assembler .register pseudo-op support], 150 libffi_cv_as_register_pseudo_op, [ 151 libffi_cv_as_register_pseudo_op=unknown 152 # Check if we have .register 153 AC_TRY_COMPILE([asm (".register %g2, #scratch");],, 154 [libffi_cv_as_register_pseudo_op=yes], 155 [libffi_cv_as_register_pseudo_op=no]) 156 ]) 157 if test "x$libffi_cv_as_register_pseudo_op" = xyes; then 158 AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1, 159 [Define if your assembler supports .register.]) 160 fi 161fi 162 163AC_CACHE_CHECK([whether .eh_frame section should be read-only], 164 libffi_cv_ro_eh_frame, [ 165 libffi_cv_ro_eh_frame=no 166 echo 'extern void foo (void); void bar (void) { foo (); foo (); }' > conftest.c 167 if $CC $CFLAGS -S -fpic -fexceptions -o conftest.s conftest.c > /dev/null 2>&1; then 168 if grep '.section.*eh_frame.*"a"' conftest.s > /dev/null; then 169 libffi_cv_ro_eh_frame=yes 170 elif grep '.section.*eh_frame.*#alloc' conftest.c \ 171 | grep -v '#write' > /dev/null; then 172 libffi_cv_ro_eh_frame=yes 173 fi 174 fi 175 rm -f conftest.* 176 ]) 177if test "x$libffi_cv_ro_eh_frame" = xyes; then 178 AC_DEFINE(HAVE_RO_EH_FRAME, 1, 179 [Define if .eh_frame sections should be read-only.]) 180 AC_DEFINE(EH_FRAME_FLAGS, "a", 181 [Define to the flags needed for the .section .eh_frame directive.]) 182else 183 AC_DEFINE(EH_FRAME_FLAGS, "aw", 184 [Define to the flags needed for the .section .eh_frame directive.]) 185fi 186 187AC_SUBST(TARGET) 188AC_SUBST(TARGETDIR) 189 190AC_SUBST(SHELL) 191 192AC_ARG_ENABLE(debug, 193[ --enable-debug debugging mode], 194 if test "$enable_debug" = "yes"; then 195 AC_DEFINE(FFI_DEBUG, 1, [Define this if you want extra debugging.]) 196 fi) 197 198AC_ARG_ENABLE(structs, 199[ --disable-structs omit code for struct support], 200 if test "$enable_structs" = "no"; then 201 AC_DEFINE(FFI_NO_STRUCTS, 1, [Define this is you do not want support for aggregate types.]) 202 fi) 203 204AC_ARG_ENABLE(raw-api, 205[ --disable-raw-api make the raw api unavailable], 206 if test "$enable_raw_api" = "no"; then 207 AC_DEFINE(FFI_NO_RAW_API, 1, [Define this is you do not want support for the raw API.]) 208 fi) 209 210AC_ARG_ENABLE(purify-safety, 211[ --enable-purify-safety purify-safe mode], 212 if test "$enable_purify_safety" = "yes"; then 213 AC_DEFINE(USING_PURIFY, 1, [Define this if you are using Purify and want to suppress spurious messages.]) 214 fi) 215 216if test -n "$with_cross_host" && 217 test x"$with_cross_host" != x"no"; then 218 toolexecdir='$(exec_prefix)/$(target_alias)' 219 toolexeclibdir='$(toolexecdir)/lib' 220else 221 toolexecdir='$(libdir)/gcc-lib/$(target_alias)' 222 toolexeclibdir='$(libdir)' 223fi 224multi_os_directory=`$CC -print-multi-os-directory` 225case $multi_os_directory in 226 .) ;; # Avoid trailing /. 227 *) toolexeclibdir=$toolexeclibdir/$multi_os_directory ;; 228esac 229AC_SUBST(toolexecdir) 230AC_SUBST(toolexeclibdir) 231 232#Figure out where generated headers like ffitarget.h get installed. 233changequote(,)dnl 234gcc_version_trigger=${srcdir}/../gcc/version.c 235gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*\"\([^\"]*\)\".*/\1/'` 236gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'` 237tool_include_dir='$(libdir)/gcc/$(target_alias)/'${gcc_version}/include 238changequote([,])dnl 239AC_SUBST(tool_include_dir) 240AC_SUBST(gcc_version) 241 242 243if test "${multilib}" = "yes"; then 244 multilib_arg="--enable-multilib" 245else 246 multilib_arg= 247fi 248 249AC_CONFIG_COMMANDS(include, [test -d include || mkdir include]) 250AC_CONFIG_COMMANDS(src, [ 251test -d src || mkdir src 252test -d src/$TARGETDIR || mkdir src/$TARGETDIR 253], [TARGETDIR="$TARGETDIR"]) 254 255AC_CONFIG_LINKS(include/ffitarget.h:src/$TARGETDIR/ffitarget.h) 256 257AC_CONFIG_FILES(include/Makefile include/ffi.h Makefile testsuite/Makefile) 258 259AC_OUTPUT 260