2002-09-10 Frank Ch. Eigler <fche@redhat.com>

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

diff --git a/libffi/configure.in b/libffi/configure.in
index 645b040..d5c00f9 100644 (file)
--- a/libffi/configure.in
+++ b/libffi/configure.in
@@ -2,6 +2,12 @@ dnl Process this with autoconf to create configure
 AC_INIT(fficonfig.h.in)
 AM_CONFIG_HEADER(fficonfig.h)
 
+# This works around the fact that libtool configuration may change LD
+# for this particular configuration, but some shells, instead of
+# keeping the changes in LD private, export them just because LD is
+# exported.
+ORIGINAL_LD_FOR_MULTILIBS=$LD
+
 dnl Default to --enable-multilib
 AC_ARG_ENABLE(multilib,
 [  --enable-multilib       build many library versions (default)],
@@ -44,22 +50,28 @@ i*86-*-linux*) TARGET=X86; TARGETDIR=x86;;
 i*86-*-solaris*) TARGET=X86; TARGETDIR=x86;;
 i*86-*-beos*) TARGET=X86; TARGETDIR=x86;;
 i*86-*-freebsd*) TARGET=X86; TARGETDIR=x86;;
+i*86-*-netbsdelf*) TARGET=X86; TARGETDIR=x86;;
 i*86-*-win32*) TARGET=X86_WIN32; TARGETDIR=x86;;
 i*86-*-cygwin*) TARGET=X86_WIN32; TARGETDIR=x86;;
 i*86-*-mingw*) TARGET=X86_WIN32; TARGETDIR=x86;;
 sparc-sun-4*) TARGET=SPARC; TARGETDIR=sparc;;
 sparc*-sun-*) TARGET=SPARC; TARGETDIR=sparc;;
-sparc-*-linux*) TARGET=SPARC; TARGETDIR=sparc;;
-sparc64-*-linux*) TARGET=SPARC; TARGETDIR=sparc;;
-alpha*-*-linux* | alpha*-*-osf*) TARGET=ALPHA; TARGETDIR=alpha;;
+sparc-*-linux* | sparc-*-netbsdelf*) TARGET=SPARC; TARGETDIR=sparc;;
+sparc64-*-linux* | sparc64-*-netbsd*) TARGET=SPARC; TARGETDIR=sparc;;
+alpha*-*-linux* | alpha*-*-osf* | alpha*-*-freebsd* | alpha*-*-netbsd*) TARGET=ALPHA; TARGETDIR=alpha;;
 ia64*-*-*) TARGET=IA64; TARGETDIR=ia64;;
 m68k-*-linux*) TARGET=M68K; TARGETDIR=m68k;;
+mips64*-*);;
+mips*-*-linux*) TARGET=MIPS_LINUX; TARGETDIR=mips;;
 powerpc-*-linux* | powerpc-*-sysv*) TARGET=POWERPC; TARGETDIR=powerpc;;
 powerpc-*-beos*) TARGET=POWERPC; TARGETDIR=powerpc;;
 powerpc-*-darwin*) TARGET=POWERPC_DARWIN; TARGETDIR=powerpc;;
 powerpc-*-aix*) TARGET=POWERPC_AIX; TARGETDIR=powerpc;;
 rs6000-*-aix*) TARGET=POWERPC_AIX; TARGETDIR=powerpc;;
 arm*-*-linux-*) TARGET=ARM; TARGETDIR=arm;;
+s390-*-linux-*) TARGET=S390; TARGETDIR=s390;;
+x86_64-*-linux*) TARGET=X86_64; TARGETDIR=x86;;
+sh-*-linux* | sh[[34]]*-*-linux*) TARGET=SH; TARGETDIR=sh;;
 esac
 
 if test $TARGETDIR = unknown; then
@@ -68,6 +80,7 @@ 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_LINUX, test x$TARGET = xMIPS_LINUX)
 AM_CONDITIONAL(SPARC, test x$TARGET = xSPARC)
 AM_CONDITIONAL(X86, test x$TARGET = xX86)
 AM_CONDITIONAL(X86_WIN32, test x$TARGET = xX86_WIN32)
@@ -78,22 +91,47 @@ AM_CONDITIONAL(POWERPC, test x$TARGET = xPOWERPC)
 AM_CONDITIONAL(POWERPC_AIX, test x$TARGET = xPOWERPC_AIX)
 AM_CONDITIONAL(POWERPC_DARWIN, test x$TARGET = xPOWERPC_DARWIN)
 AM_CONDITIONAL(ARM, test x$TARGET = xARM)
+AM_CONDITIONAL(S390, test x$TARGET = xS390)
+AM_CONDITIONAL(X86_64, test x$TARGET = xX86_64)
+AM_CONDITIONAL(SH, test x$TARGET = xSH)
+
+if test x$TARGET = xMIPS_LINUX; then
+  TARGET=MIPS
+fi
 
 AC_HEADER_STDC
 AC_CHECK_FUNCS(memcpy)
 AC_FUNC_ALLOCA
 
 dnl AC_CHECK_SIZEOF(char)
-AC_CHECK_SIZEOF(short)
-AC_CHECK_SIZEOF(int)
-AC_CHECK_SIZEOF(long)
-AC_CHECK_SIZEOF(long long)
-AC_CHECK_SIZEOF(float)
-AC_CHECK_SIZEOF(double)
-AC_CHECK_SIZEOF(long double)
-
-AC_CHECK_SIZEOF(void *)
-AC_C_BIGENDIAN
+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 *)
+AC_C_BIGENDIAN_CROSS
+
+if test x$TARGET = xSPARC; then
+    AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs],
+       libffi_cv_as_sparc_ua_pcrel, [
+       save_CFLAGS="$CFLAGS"
+       save_LDFLAGS="$LDFLAGS"
+       CFLAGS="$CFLAGS -fpic"
+       LDFLAGS="$LDFLAGS -shared"
+       AC_TRY_LINK([asm (".text; foo: nop; .data; .align 4; .byte 0; .uaword %r_disp32(foo); .text");],,
+                   [libffi_cv_as_sparc_ua_pcrel=yes],
+                   [libffi_cv_as_sparc_ua_pcrel=no])
+       CFLAGS="$save_CFLAGS"
+       LDFLAGS="$save_LDFLAGS"])
+    if test "x$libffi_cv_as_sparc_ua_pcrel" = xyes; then
+       AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
+                 [Define if your assembler and linker support unaligned PC relative relocs.])
+    fi
+fi
 
 AC_SUBST(TARGET)
 AC_SUBST(TARGETDIR)
@@ -135,6 +173,7 @@ fi
 AC_OUTPUT(include/Makefile include/ffi.h Makefile,
 [
 if test -n "$CONFIG_FILES"; then
+   LD="${ORIGINAL_LD_FOR_MULTILIBS}"
    ac_file=Makefile . ${libffi_basedir}/../config-ml.in
 fi
 ],