PR bootstrap/11932

[pf3gnuchains/gcc-fork.git] / libffi / configure.in

diff --git a/libffi/configure.in b/libffi/configure.in
index aab8f09..fcf5544 100644 (file)
--- a/libffi/configure.in
+++ b/libffi/configure.in
@@ -1,4 +1,5 @@
 dnl Process this with autoconf to create configure
+AC_PREREQ(2.13)
 AC_INIT(fficonfig.h.in)
 AM_CONFIG_HEADER(fficonfig.h)
 
@@ -46,13 +47,14 @@ AC_PROG_CC
 
 AC_PROG_LIBTOOL
 
+AC_FUNC_MMAP_BLACKLIST
+
 dnl The -no-testsuite modules omit the test subdir.
 AM_CONDITIONAL(TESTSUBDIR, test -d $srcdir/testsuite)
 
 
 TARGETDIR="unknown"
 case "$host" in
-mips-sgi-irix5.* | mips-sgi-irix6.*) TARGET=MIPS; TARGETDIR=mips;;
 i*86-*-linux*) TARGET=X86; TARGETDIR=x86;;
 i*86-*-solaris*) TARGET=X86; TARGETDIR=x86;;
 i*86-*-beos*) TARGET=X86; TARGETDIR=x86;;
@@ -69,6 +71,7 @@ alpha*-*-linux* | alpha*-*-osf* | alpha*-*-freebsd* | alpha*-*-netbsd*) TARGET=A
 ia64*-*-*) TARGET=IA64; TARGETDIR=ia64;;
 m68k-*-linux*) TARGET=M68K; TARGETDIR=m68k;;
 mips64*-*);;
+mips-sgi-irix5.* | mips-sgi-irix6.*) TARGET=MIPS_IRIX; TARGETDIR=mips;;
 mips*-*-linux*) TARGET=MIPS_LINUX; TARGETDIR=mips;;
 powerpc*-*-linux* | powerpc-*-sysv*) TARGET=POWERPC; TARGETDIR=powerpc;;
 powerpc-*-beos*) TARGET=POWERPC; TARGETDIR=powerpc;;
@@ -90,8 +93,7 @@ if test $TARGETDIR = unknown; then
   AC_ERROR("libffi has not been ported to $host.")
 fi
 
-AM_CONDITIONAL(MIPS_GCC, test ${TARGET}${ac_cv_prog_gcc} = MIPSyes)
-AM_CONDITIONAL(MIPS_SGI, test ${TARGET}${ac_cv_prog_gcc} = MIPSno)
+AM_CONDITIONAL(MIPS_IRIX, test x$TARGET = xMIPS_IRIX)
 AM_CONDITIONAL(MIPS_LINUX, test x$TARGET = xMIPS_LINUX)
 AM_CONDITIONAL(SPARC, test x$TARGET = xSPARC)
 AM_CONDITIONAL(X86, test x$TARGET = xX86)
@@ -108,24 +110,28 @@ AM_CONDITIONAL(X86_64, test x$TARGET = xX86_64)
 AM_CONDITIONAL(SH, test x$TARGET = xSH)
 AM_CONDITIONAL(SH64, test x$TARGET = xSH64)
 
-if test x$TARGET = xMIPS_LINUX; then
-  TARGET=MIPS
-fi
+case x$TARGET in
+  xMIPS*) TARGET=MIPS ;;
+  *) ;;
+esac
 
 AC_HEADER_STDC
 AC_CHECK_FUNCS(memcpy)
 AC_FUNC_ALLOCA
 
-dnl AC_CHECK_SIZEOF(char)
-AC_COMPILE_CHECK_SIZEOF(short)
-AC_COMPILE_CHECK_SIZEOF(int)
-AC_COMPILE_CHECK_SIZEOF(long)
-AC_COMPILE_CHECK_SIZEOF(long long)
-AC_COMPILE_CHECK_SIZEOF(float)
 AC_COMPILE_CHECK_SIZEOF(double)
 AC_COMPILE_CHECK_SIZEOF(long double)
 
-AC_COMPILE_CHECK_SIZEOF(void *)
+# Also AC_SUBST this variable for ffi.h.
+HAVE_LONG_DOUBLE=0
+if test $ac_cv_sizeof_double != $ac_cv_sizeof_long_double; then
+  if test $ac_cv_sizeof_long_double != 0; then
+    HAVE_LONG_DOUBLE=1
+    AC_DEFINE(HAVE_LONG_DOUBLE, 1, [Define if you have the long double type and it is bigger than a double])
+  fi
+fi
+AC_SUBST(HAVE_LONG_DOUBLE)
+
 AC_C_BIGENDIAN_CROSS
 
 if test x$TARGET = xSPARC; then
@@ -176,6 +182,11 @@ AC_CACHE_CHECK([whether .eh_frame section should be read-only],
 if test "x$libffi_cv_ro_eh_frame" = xyes; then
     AC_DEFINE(HAVE_RO_EH_FRAME, 1,
              [Define if .eh_frame sections should be read-only.])
+    AC_DEFINE(EH_FRAME_FLAGS, "a",
+             [Define to the flags needed for the .section .eh_frame directive.])
+else
+    AC_DEFINE(EH_FRAME_FLAGS, "aw",
+             [Define to the flags needed for the .section .eh_frame directive.])
 fi
 
 AC_SUBST(TARGET)
@@ -186,25 +197,25 @@ AC_SUBST(SHELL)
 AC_ARG_ENABLE(debug,
 [  --enable-debug          debugging mode],
   if test "$enable_debug" = "yes"; then
-    AC_DEFINE(FFI_DEBUG)
+    AC_DEFINE(FFI_DEBUG, 1, [Define this if you want extra debugging.])
   fi)
 
 AC_ARG_ENABLE(structs,
 [  --disable-structs       omit code for struct support],
   if test "$enable_structs" = "no"; then
-    AC_DEFINE(FFI_NO_STRUCTS)
+    AC_DEFINE(FFI_NO_STRUCTS, 1, [Define this is you do not want support for aggregate types.])
   fi)
 
 AC_ARG_ENABLE(raw-api,
 [  --disable-raw-api       make the raw api unavailable],
   if test "$enable_raw_api" = "no"; then
-    AC_DEFINE(FFI_NO_RAW_API)
+    AC_DEFINE(FFI_NO_RAW_API, 1, [Define this is you do not want support for the raw API.])
   fi)
 
 AC_ARG_ENABLE(purify-safety,
 [  --enable-purify-safety  purify-safe mode],
   if test "$enable_purify_safety" = "yes"; then
-    AC_DEFINE(USING_PURIFY)
+    AC_DEFINE(USING_PURIFY, 1, [Define this if you are using Purify and want to suppress spurious messages.])
   fi)
 
 if test -n "$with_cross_host" &&
@@ -223,6 +234,17 @@ esac
 AC_SUBST(toolexecdir)
 AC_SUBST(toolexeclibdir)
 
+#Figure out where generated headers like ffitarget.h get installed.
+changequote(,)dnl
+gcc_version_trigger=${srcdir}/../gcc/version.c
+gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*\"\([^\"]*\)\".*/\1/'`
+gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
+tool_include_dir='$(libdir)/gcc/$(target_alias)/'${gcc_version}/include
+changequote([,])dnl
+AC_SUBST(tool_include_dir)
+AC_SUBST(gcc_version)
+
+
 if test "${multilib}" = "yes"; then
   multilib_arg="--enable-multilib"
 else
@@ -246,16 +268,11 @@ libffi_basedir=${libffi_basedir}
 CC="${CC}"
 DEFS="$DEFS"
 ORIGINAL_LD_FOR_MULTILIBS="${ORIGINAL_LD_FOR_MULTILIBS}"
-test ! -d include && mkdir include
-test ! -f include/fficonfig.h && cp fficonfig.h include/fficonfig.h
-if cmp -s fficonfig.h include/fficonfig.h 2>/dev/null; then 
-       echo fficonfig.h unchanged
-else
-       echo Moving fficonfig.h to include/fficonfig.h
-       cp fficonfig.h include/fficonfig.h
-fi
-)
 
 # Make target subdirectories if required.
 test -d src || mkdir src
 test -d src/${TARGETDIR} || mkdir src/${TARGETDIR}
+test -d include || mkdir include
+
+AC_LINK_FILES(src/$TARGETDIR/ffitarget.h, include/ffitarget.h)
+)