X-Git-Url: http://git.sourceforge.jp/view?a=blobdiff_plain;f=libcpp%2Fconfigure.ac;h=6d525ec2421f8cd027a32724f6bd4e6873470b3e;hb=d4e3f54691c25221c7457eaefd32ed301a25b904;hp=52465462165714f0d403af308fee4692733bf64f;hpb=a4f7c8f77479aa46ba7962e91b975c0492386a6d;p=pf3gnuchains%2Fgcc-fork.git

diff --git a/libcpp/configure.ac b/libcpp/configure.ac
index 52465462165..6d525ec2421 100644
--- a/libcpp/configure.ac
+++ b/libcpp/configure.ac
@@ -14,6 +14,9 @@ AC_PROG_CC
 AC_PROG_CXX
 AC_PROG_RANLIB
 
+AC_USE_SYSTEM_EXTENSIONS
+AC_SYS_LARGEFILE
+
 # See if we are building gcc with C++.
 # Do this early so setting lang to C++ affects following tests
 AC_ARG_ENABLE(build-with-cxx,
@@ -30,12 +33,16 @@ AC_CHECK_PROGS([AUTOHEADER], [autoheader], [$MISSING autoheader])
 # Figure out what compiler warnings we can enable.
 # See config/warnings.m4 for details.
 
-ACX_PROG_CC_WARNING_OPTS([-W -Wall -Wwrite-strings \
+ACX_PROG_CC_WARNING_OPTS([-W -Wall -Wno-narrowing -Wwrite-strings \
 			  -Wmissing-format-attribute], [warn])
 ACX_PROG_CC_WARNING_OPTS([-Wstrict-prototypes -Wmissing-prototypes \
 			  -Wold-style-definition -Wc++-compat], [c_warn])
 ACX_PROG_CC_WARNING_ALMOST_PEDANTIC([-Wno-long-long])
 
+# Disable exceptions and RTTI if building with g++
+ACX_PROG_CC_WARNING_OPTS(
+       m4_quote(m4_do([-fno-exceptions -fno-rtti])), [noexception_flags])
+
 # Only enable with --enable-werror-always until existing warnings are
 # corrected.
 ACX_PROG_CC_WARNINGS_ARE_ERRORS([manual])
@@ -45,6 +52,10 @@ ZW_CREATE_DEPDIR
 if test "$ENABLE_BUILD_WITH_CXX" = "no"; then
 ZW_PROG_COMPILER_DEPENDENCIES([CC])
 else
+AC_LANG_PUSH([C++])
+AC_COMPILE_IFELSE([[int i;]], [],
+		  [AC_MSG_ERROR([C++ compiler missing or inoperational])])
+AC_LANG_POP([C++])
 ZW_PROG_COMPILER_DEPENDENCIES([CXX])
 fi
 
@@ -52,26 +63,19 @@ fi
 AC_HEADER_TIME
 ACX_HEADER_STRING
 
-# AC_CHECK_HEADERS is repeated to work around apparent autoconf 2.59 bug.  If
-# AC_CHECK_HEADERS comes after the if clause, the last AC_LANG call gets used,
-# no matter which branch is taken.
-if test "$ENABLE_BUILD_WITH_CXX" = "no"; then
-   AC_LANG(C)
-   AC_CHECK_HEADERS(locale.h fcntl.h limits.h stddef.h \
-	stdlib.h strings.h string.h sys/file.h unistd.h)
-else
-   AC_LANG(C++)
-   AC_CHECK_HEADERS(locale.h fcntl.h limits.h stddef.h \
+AC_CHECK_HEADERS(locale.h fcntl.h limits.h stddef.h \
 	stdlib.h strings.h string.h sys/file.h unistd.h)
-fi
 
 # Checks for typedefs, structures, and compiler characteristics.
+AC_C_BIGENDIAN
 AC_C_CONST
 AC_C_INLINE
 AC_FUNC_OBSTACK
 AC_TYPE_OFF_T
 AC_TYPE_SIZE_T
-AC_CHECK_TYPE(ssize_t, int)
+AC_TYPE_SSIZE_T
+AC_TYPE_UINTPTR_T
+AC_CHECK_TYPE(ptrdiff_t, int)
 AC_STRUCT_TM
 AC_CHECK_SIZEOF(int)
 AC_CHECK_SIZEOF(long)
@@ -81,8 +85,8 @@ define(libcpp_UNLOCKED_FUNCS, clearerr_unlocked feof_unlocked dnl
   fread_unlocked fwrite_unlocked getchar_unlocked getc_unlocked dnl
   putchar_unlocked putc_unlocked)
 AC_CHECK_FUNCS(libcpp_UNLOCKED_FUNCS)
-AC_CHECK_DECLS(m4_split(m4_normalize(abort asprintf basename errno getopt \
-  libcpp_UNLOCKED_FUNCS vasprintf)))
+AC_CHECK_DECLS([abort, asprintf, basename(char *), errno, getopt, vasprintf])
+AC_CHECK_DECLS(m4_split(m4_normalize(libcpp_UNLOCKED_FUNCS)))
 
 # Checks for library functions.
 AC_FUNC_ALLOCA
@@ -102,7 +106,13 @@ if test $ac_cv_type_uchar = yes; then
   [Define if <sys/types.h> defines \`uchar'.])
 fi
 
-AM_ICONV
+# g++ on Solaris 10+ defines _XOPEN_SOURCE=600, which exposes a different
+# iconv() prototype.
+AS_IF([test "$ENABLE_BUILD_WITH_CXX" = "yes"],
+  [AC_LANG_PUSH([C++])
+   AM_ICONV
+   AC_LANG_POP([C++])],
+  [AM_ICONV])
 
 # More defines and substitutions.
 PACKAGE="$PACKAGE_TARNAME"
@@ -140,13 +150,12 @@ m4_changequote(,)
 case $target in
 	alpha*-*-* | \
 	arm*-*-*eabi* | \
+	arm*-*-rtems[.0-9]* | \
 	arm*-*-symbianelf* | \
 	x86_64-*-* | \
 	ia64-*-* | \
 	hppa*64*-*-* | \
-	i[34567]86-*-darwin* | \
-	i[34567]86-*-solaris2.1[0-9]* | \
-	i[34567]86-w64-mingw* | \
+	i[34567]86-*-* | x86_64-*-solaris2.1[0-9]* | \
 	mips*-*-* | \
 	mmix-*-* | \
 	powerpc*-*-* | \
@@ -154,15 +163,9 @@ case $target in
 	s390*-*-* | \
 	sparc*-*-* | \
 	spu-*-* | \
-	sh[123456789lbe]*-*-* | sh-*-*)
+	sh[123456789lbe]*-*-* | sh-*-* | \
+	tilegx-*-* | tilepro-*-* )
 		need_64bit_hwint=yes ;;
-	i[34567]86-*-linux*)
-		if test "x$enable_targets" = xall; then
-			need_64bit_hwint=yes
-		else
-			need_64bit_hwint=no
-		fi
-		;;
 	*)
 		need_64bit_hwint=no ;;
 esac
@@ -177,6 +180,13 @@ AC_DEFINE_UNQUOTED(HOST_WIDE_INT, $host_wide_int,
 [Define to the widest efficient host integer type at least
    as wide as the target's size_t type.])
 
+case $target in
+  i?86-* | x86_64-*)
+    AC_TRY_COMPILE([], [asm ("pcmpestri %0, %%xmm0, %%xmm1" : : "i"(0))],
+      [AC_DEFINE([HAVE_SSE4], [1],
+		 [Define to 1 if you can assemble SSE4 insns.])])
+esac
+
 # Output.
 
 AC_CONFIG_HEADERS(config.h:config.in, [echo timestamp > stamp-h1])