1 dnl Process this with autoconf to create configure
2 AC_INIT(fficonfig.h.in)
3 AM_CONFIG_HEADER(fficonfig.h)
5 # This works around the fact that libtool configuration may change LD
6 # for this particular configuration, but some shells, instead of
7 # keeping the changes in LD private, export them just because LD is
9 ORIGINAL_LD_FOR_MULTILIBS=$LD
11 dnl Default to --enable-multilib
12 AC_ARG_ENABLE(multilib,
13 [ --enable-multilib build many library versions (default)],
14 [case "${enableval}" in
17 *) AC_MSG_ERROR(bad value ${enableval} for multilib option) ;;
18 esac], [multilib=yes])dnl
20 dnl We may get other options which we don't document:
21 dnl --with-target-subdir, --with-multisrctop, --with-multisubdir
23 if test "${srcdir}" = "."; then
24 if test "${with_target_subdir}" != "."; then
25 libffi_basedir="${with_multisrctop}../"
27 libffi_basedir="${with_multisrctop}"
32 AC_SUBST(libffi_basedir)
33 AC_CONFIG_AUX_DIR(${libffi_basedir}..)
39 AM_INIT_AUTOMAKE(libffi,2.00-beta,no-define)
49 mips-sgi-irix5.* | mips-sgi-irix6.*) TARGET=MIPS; TARGETDIR=mips;;
50 i*86-*-linux*) TARGET=X86; TARGETDIR=x86;;
51 i*86-*-solaris*) TARGET=X86; TARGETDIR=x86;;
52 i*86-*-beos*) TARGET=X86; TARGETDIR=x86;;
53 i*86-*-freebsd*) TARGET=X86; TARGETDIR=x86;;
54 i*86-*-netbsdelf*) TARGET=X86; TARGETDIR=x86;;
55 i*86-*-win32*) TARGET=X86_WIN32; TARGETDIR=x86;;
56 i*86-*-cygwin*) TARGET=X86_WIN32; TARGETDIR=x86;;
57 i*86-*-mingw*) TARGET=X86_WIN32; TARGETDIR=x86;;
58 sparc-sun-4*) TARGET=SPARC; TARGETDIR=sparc;;
59 sparc*-sun-*) TARGET=SPARC; TARGETDIR=sparc;;
60 sparc-*-linux* | sparc-*-netbsdelf*) TARGET=SPARC; TARGETDIR=sparc;;
61 sparc64-*-linux* | sparc64-*-netbsd*) TARGET=SPARC; TARGETDIR=sparc;;
62 alpha*-*-linux* | alpha*-*-osf* | alpha*-*-freebsd* | alpha*-*-netbsd*) TARGET=ALPHA; TARGETDIR=alpha;;
63 ia64*-*-*) TARGET=IA64; TARGETDIR=ia64;;
64 m68k-*-linux*) TARGET=M68K; TARGETDIR=m68k;;
66 mips*-*-linux*) TARGET=MIPS_LINUX; TARGETDIR=mips;;
67 powerpc*-*-linux* | powerpc-*-sysv*) TARGET=POWERPC; TARGETDIR=powerpc;;
68 powerpc-*-beos*) TARGET=POWERPC; TARGETDIR=powerpc;;
69 powerpc-*-darwin*) TARGET=POWERPC_DARWIN; TARGETDIR=powerpc;;
70 powerpc-*-aix*) TARGET=POWERPC_AIX; TARGETDIR=powerpc;;
71 rs6000-*-aix*) TARGET=POWERPC_AIX; TARGETDIR=powerpc;;
72 arm*-*-linux-*) TARGET=ARM; TARGETDIR=arm;;
73 arm*-*-netbsdelf*) TARGET=ARM; TARGETDIR=arm;;
74 s390-*-linux-*) TARGET=S390; TARGETDIR=s390;;
75 s390x-*-linux-*) TARGET=S390; TARGETDIR=s390;;
76 x86_64-*-linux*) TARGET=X86_64; TARGETDIR=x86;;
77 sh-*-linux* | sh[[34]]*-*-linux*) TARGET=SH; TARGETDIR=sh;;
80 if test $TARGETDIR = unknown; then
81 AC_ERROR("libffi has not been ported to $host.")
84 AM_CONDITIONAL(MIPS_GCC, test ${TARGET}${ac_cv_prog_gcc} = MIPSyes)
85 AM_CONDITIONAL(MIPS_SGI, test ${TARGET}${ac_cv_prog_gcc} = MIPSno)
86 AM_CONDITIONAL(MIPS_LINUX, test x$TARGET = xMIPS_LINUX)
87 AM_CONDITIONAL(SPARC, test x$TARGET = xSPARC)
88 AM_CONDITIONAL(X86, test x$TARGET = xX86)
89 AM_CONDITIONAL(X86_WIN32, test x$TARGET = xX86_WIN32)
90 AM_CONDITIONAL(ALPHA, test x$TARGET = xALPHA)
91 AM_CONDITIONAL(IA64, test x$TARGET = xIA64)
92 AM_CONDITIONAL(M68K, test x$TARGET = xM68K)
93 AM_CONDITIONAL(POWERPC, test x$TARGET = xPOWERPC)
94 AM_CONDITIONAL(POWERPC_AIX, test x$TARGET = xPOWERPC_AIX)
95 AM_CONDITIONAL(POWERPC_DARWIN, test x$TARGET = xPOWERPC_DARWIN)
96 AM_CONDITIONAL(ARM, test x$TARGET = xARM)
97 AM_CONDITIONAL(S390, test x$TARGET = xS390)
98 AM_CONDITIONAL(X86_64, test x$TARGET = xX86_64)
99 AM_CONDITIONAL(SH, test x$TARGET = xSH)
101 if test x$TARGET = xMIPS_LINUX; then
106 AC_CHECK_FUNCS(memcpy)
109 dnl AC_CHECK_SIZEOF(char)
110 AC_COMPILE_CHECK_SIZEOF(short)
111 AC_COMPILE_CHECK_SIZEOF(int)
112 AC_COMPILE_CHECK_SIZEOF(long)
113 AC_COMPILE_CHECK_SIZEOF(long long)
114 AC_COMPILE_CHECK_SIZEOF(float)
115 AC_COMPILE_CHECK_SIZEOF(double)
116 AC_COMPILE_CHECK_SIZEOF(long double)
118 AC_COMPILE_CHECK_SIZEOF(void *)
121 if test x$TARGET = xSPARC; then
122 AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs],
123 libffi_cv_as_sparc_ua_pcrel, [
124 save_CFLAGS="$CFLAGS"
125 save_LDFLAGS="$LDFLAGS"
126 CFLAGS="$CFLAGS -fpic"
127 LDFLAGS="$LDFLAGS -shared"
128 AC_TRY_LINK([asm (".text; foo: nop; .data; .align 4; .byte 0; .uaword %r_disp32(foo); .text");],,
129 [libffi_cv_as_sparc_ua_pcrel=yes],
130 [libffi_cv_as_sparc_ua_pcrel=no])
131 CFLAGS="$save_CFLAGS"
132 LDFLAGS="$save_LDFLAGS"])
133 if test "x$libffi_cv_as_sparc_ua_pcrel" = xyes; then
134 AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
135 [Define if your assembler and linker support unaligned PC relative relocs.])
138 AC_CACHE_CHECK([assembler .register pseudo-op support],
139 libffi_cv_as_register_pseudo_op, [
140 libffi_cv_as_register_pseudo_op=unknown
141 # Check if we have .register
142 AC_TRY_COMPILE([asm (".register %g2, #scratch");],,
143 [libffi_cv_as_register_pseudo_op=yes],
144 [libffi_cv_as_register_pseudo_op=no])
146 if test "x$libffi_cv_as_register_pseudo_op" = xyes; then
147 AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
148 [Define if your assembler supports .register.])
152 AC_CACHE_CHECK([whether .eh_frame section should be read-only],
153 libffi_cv_ro_eh_frame, [
154 libffi_cv_ro_eh_frame=no
155 echo 'extern void foo (void); void bar (void) { foo (); foo (); }' > conftest.c
156 if $CC $CFLAGS -S -fpic -fexceptions -o conftest.s conftest.c > /dev/null 2>&1; then
157 if grep '.section.*eh_frame.*"a"' conftest.s > /dev/null; then
158 libffi_cv_ro_eh_frame=yes
159 elif grep '.section.*eh_frame.*#alloc' conftest.c \
160 | grep -v '#write' > /dev/null; then
161 libffi_cv_ro_eh_frame=yes
166 if test "x$libffi_cv_ro_eh_frame" = xyes; then
167 AC_DEFINE(HAVE_RO_EH_FRAME, 1,
168 [Define if .eh_frame sections should be read-only.])
177 [ --enable-debug debugging mode],
178 if test "$enable_debug" = "yes"; then
182 AC_ARG_ENABLE(structs,
183 [ --disable-structs omit code for struct support],
184 if test "$enable_structs" = "no"; then
185 AC_DEFINE(FFI_NO_STRUCTS)
188 AC_ARG_ENABLE(raw-api,
189 [ --disable-raw-api make the raw api unavailable],
190 if test "$enable_raw_api" = "no"; then
191 AC_DEFINE(FFI_NO_RAW_API)
194 AC_ARG_ENABLE(purify-safety,
195 [ --enable-purify-safety purify-safe mode],
196 if test "$enable_purify_safety" = "yes"; then
197 AC_DEFINE(USING_PURIFY)
200 if test -n "$with_cross_host" &&
201 test x"$with_cross_host" != x"no"; then
202 toolexecdir='$(exec_prefix)/$(target_alias)'
203 toolexeclibdir='$(toolexecdir)/lib'
205 toolexecdir='$(libdir)/gcc-lib/$(target_alias)'
206 toolexeclibdir='$(libdir)'
208 multi_os_directory=`$CC -print-multi-os-directory`
209 case $multi_os_directory in
210 .) ;; # Avoid trailing /.
211 *) toolexeclibdir=$toolexeclibdir/$multi_os_directory ;;
213 AC_SUBST(toolexecdir)
214 AC_SUBST(toolexeclibdir)
216 if test "${multilib}" = "yes"; then
217 multilib_arg="--enable-multilib"
222 AC_OUTPUT(include/Makefile include/ffi.h Makefile,
224 if test -n "$CONFIG_FILES"; then
225 LD="${ORIGINAL_LD_FOR_MULTILIBS}"
226 ac_file=Makefile . ${srcdir}/${libffi_basedir}../config-ml.in
232 with_multisubdir=${with_multisubdir}
233 ac_configure_args="${multilib_arg} ${ac_configure_args}"
234 CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
235 libffi_basedir=${libffi_basedir}
238 ORIGINAL_LD_FOR_MULTILIBS="${ORIGINAL_LD_FOR_MULTILIBS}"
239 test ! -d include && mkdir include
240 test ! -f include/fficonfig.h && cp fficonfig.h include/fficonfig.h
241 if cmp -s fficonfig.h include/fficonfig.h 2>/dev/null; then
242 echo fficonfig.h unchanged
244 echo Moving fficonfig.h to include/fficonfig.h
245 cp fficonfig.h include/fficonfig.h
249 # Make target subdirectories if required.
250 test -d src || mkdir src
251 test -d src/${TARGETDIR} || mkdir src/${TARGETDIR}