1dnl Process this with autoconf to create configure
2
3AC_PREREQ(2.59)
4
5#AC_INIT([libffi], [2.1], [http://gcc.gnu.org/bugs.html])
6AC_INIT([libffi-sable], esyscmd([svn info | grep ^Revision: | awk '{print $2}' | head -n 1 | xargs echo -n]), [http://www.sablevm.org/])
7AC_CONFIG_HEADERS([fficonfig.h])
8
9AC_CANONICAL_SYSTEM
10
11AM_INIT_AUTOMAKE
12
13AC_PROG_CC
14
15AM_PROG_AS
16AM_PROG_CC_C_O
17AC_PROG_LIBTOOL
18
19AM_MAINTAINER_MODE
20
21AC_CHECK_HEADERS(sys/mman.h)
22AC_CHECK_FUNCS(mmap)
23AC_FUNC_MMAP_BLACKLIST
24
25dnl The -no-testsuite modules omit the test subdir.
26AM_CONDITIONAL(TESTSUBDIR, test -d $srcdir/testsuite)
27
28TARGETDIR="unknown"
29case "$host" in
30i*86-*-linux*) TARGET=X86; TARGETDIR=x86;;
31i*86-*-solaris*) TARGET=X86; TARGETDIR=x86;;
32i*86-*-beos*) TARGET=X86; TARGETDIR=x86;;
33i*86-*-freebsd* | i*86-*-kfreebsd*-gnu) TARGET=X86; TARGETDIR=x86;;
34i*86-*-netbsdelf* | i*86-*-knetbsd*-gnu) TARGET=X86; TARGETDIR=x86;;
35i*86-*-win32*) TARGET=X86_WIN32; TARGETDIR=x86;;
36i*86-*-cygwin*) TARGET=X86_WIN32; TARGETDIR=x86;;
37i*86-*-mingw*) TARGET=X86_WIN32; TARGETDIR=x86;;
38frv-*-*) TARGET=FRV; TARGETDIR=frv;;
39sparc-sun-4*) TARGET=SPARC; TARGETDIR=sparc;;
40sparc*-sun-*) TARGET=SPARC; TARGETDIR=sparc;;
41sparc-*-linux* | sparc-*-netbsdelf* | sparc-*-knetbsd*-gnu) TARGET=SPARC; TARGETDIR=sparc;;
42sparc64-*-linux* | sparc64-*-netbsd* | sparc64-*-knetbsd*-gnu) TARGET=SPARC; TARGETDIR=sparc;;
43alpha*-*-linux* | alpha*-*-osf* | alpha*-*-freebsd* | alpha*-*-kfreebsd*-gnu | alpha*-*-netbsd* | alpha*-*-knetbsd*-gnu) TARGET=ALPHA; TARGETDIR=alpha;;
44ia64*-*-*) TARGET=IA64; TARGETDIR=ia64;;
45m32r*-*-linux* ) TARGET=M32R; TARGETDIR=m32r;;
46m68k-*-linux*) TARGET=M68K; TARGETDIR=m68k;;
47mips64*-*);;
48mips-sgi-irix5.* | mips-sgi-irix6.*) TARGET=MIPS_IRIX; TARGETDIR=mips;;
49mips*-*-linux*) TARGET=MIPS_LINUX; TARGETDIR=mips;;
50powerpc*-*-linux* | powerpc-*-sysv*) TARGET=POWERPC; TARGETDIR=powerpc;;
51powerpc-*-beos*) TARGET=POWERPC; TARGETDIR=powerpc;;
52powerpc-*-darwin*) TARGET=POWERPC_DARWIN; TARGETDIR=powerpc;;
53powerpc-*-aix*) TARGET=POWERPC_AIX; TARGETDIR=powerpc;;
54rs6000-*-aix*) TARGET=POWERPC_AIX; TARGETDIR=powerpc;;
55arm*-*-linux-*) TARGET=ARM; TARGETDIR=arm;;
56arm*-*-netbsdelf* | arm*-*-knetbsd*-gnu) TARGET=ARM; TARGETDIR=arm;;
57s390-*-linux-*) TARGET=S390; TARGETDIR=s390;;
58s390x-*-linux-*) TARGET=S390; TARGETDIR=s390;;
59x86_64-*-linux* | x86_64-*-freebsd* | x86_64-*-kfreebsd*-gnu) TARGET=X86_64; TARGETDIR=x86;;
60sh-*-linux* | sh[[34]]*-*-linux*) TARGET=SH; TARGETDIR=sh;;
61sh64-*-linux* | sh5*-*-linux*) TARGET=SH64; TARGETDIR=sh64;;
62hppa-*-linux* | parisc-*-linux*) TARGET=PA; TARGETDIR=pa;;
63esac
64
65AC_SUBST(AM_RUNTESTFLAGS)
66
67if test $TARGETDIR = unknown; then
68  AC_MSG_ERROR(["libffi has not been ported to $host."])
69fi
70
71AM_CONDITIONAL(MIPS_IRIX, test x$TARGET = xMIPS_IRIX)
72AM_CONDITIONAL(MIPS_LINUX, test x$TARGET = xMIPS_LINUX)
73AM_CONDITIONAL(SPARC, test x$TARGET = xSPARC)
74AM_CONDITIONAL(X86, test x$TARGET = xX86)
75AM_CONDITIONAL(X86_WIN32, test x$TARGET = xX86_WIN32)
76AM_CONDITIONAL(ALPHA, test x$TARGET = xALPHA)
77AM_CONDITIONAL(IA64, test x$TARGET = xIA64)
78AM_CONDITIONAL(M32R, test x$TARGET = xM32R)
79AM_CONDITIONAL(M68K, test x$TARGET = xM68K)
80AM_CONDITIONAL(POWERPC, test x$TARGET = xPOWERPC)
81AM_CONDITIONAL(POWERPC_AIX, test x$TARGET = xPOWERPC_AIX)
82AM_CONDITIONAL(POWERPC_DARWIN, test x$TARGET = xPOWERPC_DARWIN)
83AM_CONDITIONAL(ARM, test x$TARGET = xARM)
84AM_CONDITIONAL(FRV, test x$TARGET = xFRV)
85AM_CONDITIONAL(S390, test x$TARGET = xS390)
86AM_CONDITIONAL(X86_64, test x$TARGET = xX86_64)
87AM_CONDITIONAL(SH, test x$TARGET = xSH)
88AM_CONDITIONAL(SH64, test x$TARGET = xSH64)
89AM_CONDITIONAL(PA, test x$TARGET = xPA)
90
91case x$TARGET in
92  xMIPS*) TARGET=MIPS ;;
93  *) ;;
94esac
95
96AC_HEADER_STDC
97AC_CHECK_FUNCS(memcpy)
98AC_FUNC_ALLOCA
99
100AC_COMPILE_CHECK_SIZEOF(double)
101AC_COMPILE_CHECK_SIZEOF(long double)
102
103# Also AC_SUBST this variable for ffi.h.
104HAVE_LONG_DOUBLE=0
105if test $ac_cv_sizeof_double != $ac_cv_sizeof_long_double; then
106  if test $ac_cv_sizeof_long_double != 0; then
107    HAVE_LONG_DOUBLE=1
108    AC_DEFINE(HAVE_LONG_DOUBLE, 1, [Define if you have the long double type and it is bigger than a double])
109  fi
110fi
111AC_SUBST(HAVE_LONG_DOUBLE)
112
113AC_C_BIGENDIAN_CROSS
114
115if test x$TARGET = xSPARC; then
116    AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs],
117	libffi_cv_as_sparc_ua_pcrel, [
118	save_CFLAGS="$CFLAGS"
119	save_LDFLAGS="$LDFLAGS"
120	CFLAGS="$CFLAGS -fpic"
121	LDFLAGS="$LDFLAGS -shared"
122	AC_TRY_LINK([asm (".text; foo: nop; .data; .align 4; .byte 0; .uaword %r_disp32(foo); .text");],,
123		    [libffi_cv_as_sparc_ua_pcrel=yes],
124		    [libffi_cv_as_sparc_ua_pcrel=no])
125	CFLAGS="$save_CFLAGS"
126	LDFLAGS="$save_LDFLAGS"])
127    if test "x$libffi_cv_as_sparc_ua_pcrel" = xyes; then
128	AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
129		  [Define if your assembler and linker support unaligned PC relative relocs.])
130    fi
131
132    AC_CACHE_CHECK([assembler .register pseudo-op support],
133       libffi_cv_as_register_pseudo_op, [
134       libffi_cv_as_register_pseudo_op=unknown
135       # Check if we have .register
136       AC_TRY_COMPILE([asm (".register %g2, #scratch");],,
137		       [libffi_cv_as_register_pseudo_op=yes],
138		       [libffi_cv_as_register_pseudo_op=no])
139    ])
140    if test "x$libffi_cv_as_register_pseudo_op" = xyes; then
141       AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
142	       [Define if your assembler supports .register.])
143    fi
144fi
145
146AC_CACHE_CHECK([whether .eh_frame section should be read-only],
147    libffi_cv_ro_eh_frame, [
148	libffi_cv_ro_eh_frame=no
149	echo 'extern void foo (void); void bar (void) { foo (); foo (); }' > conftest.c
150	if $CC $CFLAGS -S -fpic -fexceptions -o conftest.s conftest.c > /dev/null 2>&1; then
151	    if grep '.section.*eh_frame.*"a"' conftest.s > /dev/null; then
152		libffi_cv_ro_eh_frame=yes
153	    elif grep '.section.*eh_frame.*#alloc' conftest.c \
154		 | grep -v '#write' > /dev/null; then
155		libffi_cv_ro_eh_frame=yes
156	    fi
157	fi
158	rm -f conftest.*
159    ])
160if test "x$libffi_cv_ro_eh_frame" = xyes; then
161    AC_DEFINE(HAVE_RO_EH_FRAME, 1,
162	      [Define if .eh_frame sections should be read-only.])
163    AC_DEFINE(EH_FRAME_FLAGS, "a",
164	      [Define to the flags needed for the .section .eh_frame directive.])
165else
166    AC_DEFINE(EH_FRAME_FLAGS, "aw",
167	      [Define to the flags needed for the .section .eh_frame directive.])
168fi
169
170AC_SUBST(TARGET)
171AC_SUBST(TARGETDIR)
172
173AC_SUBST(SHELL)
174
175AC_ARG_ENABLE(debug,
176[  --enable-debug          debugging mode],
177  if test "$enable_debug" = "yes"; then
178    AC_DEFINE(FFI_DEBUG, 1, [Define this if you want extra debugging.])
179  fi)
180
181AC_ARG_ENABLE(structs,
182[  --disable-structs       omit code for struct support],
183  if test "$enable_structs" = "no"; then
184    AC_DEFINE(FFI_NO_STRUCTS, 1, [Define this is you do not want support for aggregate types.])
185  fi)
186
187AC_ARG_ENABLE(raw-api,
188[  --disable-raw-api       make the raw api unavailable],
189  if test "$enable_raw_api" = "no"; then
190    AC_DEFINE(FFI_NO_RAW_API, 1, [Define this is you do not want support for the raw API.])
191  fi)
192
193AC_ARG_ENABLE(purify-safety,
194[  --enable-purify-safety  purify-safe mode],
195  if test "$enable_purify_safety" = "yes"; then
196    AC_DEFINE(USING_PURIFY, 1, [Define this if you are using Purify and want to suppress spurious messages.])
197  fi)
198
199AC_ARG_ENABLE(convenience-only-libffi,
200[  --enable-convenience-only-libffi    only build convenience library])
201AM_CONDITIONAL(CONV_ONLY_LIBFFI,  test "$enable_convenience_only_libffi" = "yes")
202
203dnl Check whether -no-undefined is required
204case "$host" in
205        *-*-mingw*|*-*-cygwin*) AC_SUBST(NO_UNDEFINED, -no-undefined) ;;
206        *) ;;
207esac
208
209AC_CONFIG_COMMANDS(include, [test -d include || mkdir include])
210AC_CONFIG_COMMANDS(src, [
211test -d src || mkdir src
212test -d src/$TARGETDIR || mkdir src/$TARGETDIR
213], [TARGETDIR="$TARGETDIR"])
214
215AC_CONFIG_LINKS(include/ffitarget.h:src/$TARGETDIR/ffitarget.h)
216
217AC_CONFIG_FILES(include/Makefile include/ffi.h Makefile testsuite/Makefile)
218
219AC_OUTPUT
220