2008-08-17 Paolo Carlini <paolo.carlini@oracle.com>

	* acinclude.m4 ([GLIBCXX_CHECK_LFS], [GLIBCXX_CHECK_POLL],
	[GLIBCXX_CHECK_S_ISREG_OR_S_IFREG], [GLIBCXX_CHECK_WRITEV]):
	Use GCC_TRY_COMPILE_OR_LINK instead of AC_TRY_LINK, in C++,
	with -fno-exceptions as flags.
	* configure.ac: Run unconditionally GLIBCXX_CHECK_LFS,
	GLIBCXX_CHECK_POLL, GLIBCXX_CHECK_S_ISREG_OR_S_IFREG,
	GLIBCXX_CHECK_WRITEV and commonized AC_CHECK_HEADERS. 
	* crossconfig.m4: Adjust; remove AC_CHECK_HEADERS commonized
	in configure.ac.
	* configure: Regenerate.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@139168 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 1 insertions, 83 deletions

diff --git a/libstdc++-v3/crossconfig.m4 b/libstdc++-v3/crossconfig.m4
index a38a4c306a1..0ca1ef94eb5 100644
--- a/libstdc++-v3/crossconfig.m4
+++ b/libstdc++-v3/crossconfig.m4
@@ -11,10 +11,6 @@ case "${host}" in
 
   mips*-sde-elf*)
     # These definitions are for the SDE C library rather than newlib.
-    AC_CHECK_HEADERS([float.h inttypes.h locale.h \
-      stdint.h stdlib.h string.h unistd.h wchar.h \
-      machine/endian.h sys/ioctl.h sys/resource.h \
-      sys/stat.h sys/time.h sys/types.h sys/uio.h])
     SECTION_FLAGS='-ffunction-sections -fdata-sections'
     AC_SUBST(SECTION_FLAGS)
     GLIBCXX_CHECK_COMPILER_FEATURES
@@ -23,8 +19,6 @@ case "${host}" in
     GLIBCXX_CHECK_BUILTIN_MATH_SUPPORT
     GLIBCXX_CHECK_COMPLEX_MATH_SUPPORT
     GLIBCXX_CHECK_STDLIB_SUPPORT
-    GLIBCXX_CHECK_S_ISREG_OR_S_IFREG
-    AC_DEFINE(HAVE_WRITEV)
 
     AC_DEFINE(HAVE_LIBM)
     AC_DEFINE(HAVE_COPYSIGN)
@@ -42,9 +36,6 @@ case "${host}" in
     # Darwin versions vary, but the linker should work in a cross environment,
     # so we just check for all the features here.
     # Check for available headers.
-    AC_CHECK_HEADERS([nan.h ieeefp.h endian.h sys/isa_defs.h machine/endian.h \
-    machine/param.h sys/machine.h fp.h locale.h float.h inttypes.h \
-    sys/types.h])
 
     # Don't call GLIBCXX_CHECK_LINKER_FEATURES, Darwin doesn't have a GNU ld
     GLIBCXX_CHECK_MATH_SUPPORT
@@ -52,23 +43,10 @@ case "${host}" in
     GLIBCXX_CHECK_COMPLEX_MATH_SUPPORT
     GLIBCXX_CHECK_STDLIB_SUPPORT
 
-    # For showmanyc_helper().
-    AC_CHECK_HEADERS(sys/ioctl.h sys/filio.h)
-    GLIBCXX_CHECK_POLL
-    GLIBCXX_CHECK_S_ISREG_OR_S_IFREG
-
-    # For xsputn_2().
-    AC_CHECK_HEADERS(sys/uio.h)
-    GLIBCXX_CHECK_WRITEV
-
     AC_DEFINE(HAVE_LC_MESSAGES)
     ;;
 
   *djgpp)
-    AC_CHECK_HEADERS([float.h ieeefp.h inttypes.h locale.h \
-      memory.h stdint.h stdlib.h strings.h string.h unistd.h \
-      wchar.h wctype.h machine/endian.h sys/ioctl.h sys/param.h \
-      sys/resource.h sys/stat.h sys/time.h sys/types.h sys/uio.h])
     # GLIBCXX_CHECK_MATH_SUPPORT
     AC_DEFINE(HAVE_LIBM)
     AC_DEFINE(HAVE_ISINF)
@@ -96,17 +74,9 @@ case "${host}" in
     # GLIBCXX_CHECK_STDLIB_SUPPORT
     AC_DEFINE(HAVE_COPYSIGN)
     AC_DEFINE(HAVE_COPYSIGNF)
-    # GLIBCXX_CHECK_S_ISREG_OR_S_IFREG
-    AC_DEFINE(HAVE_S_ISREG)
-    AC_DEFINE(HAVE_S_IFREG)
-    AC_DEFINE(HAVE_WRITEV)
     ;;
 
   *-freebsd*)
-    AC_CHECK_HEADERS([nan.h ieeefp.h endian.h sys/isa_defs.h \
-      machine/endian.h machine/param.h sys/machine.h sys/types.h \
-      fp.h locale.h float.h inttypes.h sys/resource.h sys/stat.h \
-      sys/time.h unistd.h])
     SECTION_FLAGS='-ffunction-sections -fdata-sections'
     AC_SUBST(SECTION_FLAGS) 
     GLIBCXX_CHECK_LINKER_FEATURES
@@ -155,9 +125,6 @@ case "${host}" in
     fi
     ;;
   *-hpux*)
-    AC_CHECK_HEADERS([nan.h ieeefp.h endian.h sys/isa_defs.h \
-      machine/endian.h machine/param.h sys/machine.h sys/types.h \
-      fp.h locale.h float.h inttypes.h])
     SECTION_FLAGS='-ffunction-sections -fdata-sections'
     AC_SUBST(SECTION_FLAGS)
     GLIBCXX_CHECK_LINKER_FEATURES
@@ -178,10 +145,6 @@ case "${host}" in
     esac
     ;;
   *-linux* | *-uclinux* | *-gnu* | *-kfreebsd*-gnu | *-knetbsd*-gnu)
-    AC_CHECK_HEADERS([nan.h ieeefp.h endian.h sys/isa_defs.h \
-      machine/endian.h machine/param.h sys/machine.h sys/types.h \
-      fp.h float.h endian.h inttypes.h locale.h float.h stdint.h \
-      sys/ipc.h sys/sem.h])
     SECTION_FLAGS='-ffunction-sections -fdata-sections'
     AC_SUBST(SECTION_FLAGS)
     GLIBCXX_CHECK_COMPILER_FEATURES
@@ -191,18 +154,6 @@ case "${host}" in
     GLIBCXX_CHECK_COMPLEX_MATH_SUPPORT
     GLIBCXX_CHECK_STDLIB_SUPPORT
 
-    # For LFS.
-    GLIBCXX_CHECK_LFS
-
-    # For showmanyc_helper().
-    AC_CHECK_HEADERS(sys/ioctl.h sys/filio.h)
-    GLIBCXX_CHECK_POLL
-    GLIBCXX_CHECK_S_ISREG_OR_S_IFREG
-
-    # For xsputn_2().
-    AC_CHECK_HEADERS(sys/uio.h)
-    GLIBCXX_CHECK_WRITEV
-
     AC_DEFINE(_GLIBCXX_USE_RANDOM_TR1)
 
     AC_LC_MESSAGES
@@ -211,16 +162,12 @@ case "${host}" in
     AM_ICONV
     ;;
   *-mingw32*)
-    AC_CHECK_HEADERS([sys/types.h locale.h float.h])
     AC_DEFINE(HAVE_STRTOF)
     AC_DEFINE(HAVE_STRTOLD)
     GLIBCXX_CHECK_LINKER_FEATURES
     GLIBCXX_CHECK_COMPLEX_MATH_SUPPORT
     ;;
   *-netbsd*)
-    AC_CHECK_HEADERS([nan.h ieeefp.h endian.h sys/isa_defs.h \
-      machine/endian.h machine/param.h sys/machine.h sys/types.h \
-      fp.h locale.h float.h inttypes.h])
     SECTION_FLAGS='-ffunction-sections -fdata-sections'
     AC_SUBST(SECTION_FLAGS) 
     GLIBCXX_CHECK_LINKER_FEATURES
@@ -242,8 +189,6 @@ case "${host}" in
     fi
     ;;
   *-netware)
-    AC_CHECK_HEADERS([nan.h ieeefp.h sys/isa_defs.h sys/machine.h \
-      sys/types.h locale.h float.h inttypes.h])
     SECTION_FLAGS='-ffunction-sections -fdata-sections'
     AC_SUBST(SECTION_FLAGS)
     GLIBCXX_CHECK_LINKER_FEATURES
@@ -251,15 +196,6 @@ case "${host}" in
     AC_DEFINE(HAVE_HYPOT)
     AC_DEFINE(HAVE_ISINF)
     AC_DEFINE(HAVE_ISNAN)
-
-    # For showmanyc_helper().
-    AC_CHECK_HEADERS(sys/ioctl.h sys/filio.h)
-    GLIBCXX_CHECK_POLL
-    GLIBCXX_CHECK_S_ISREG_OR_S_IFREG
-
-    # For xsputn_2().
-    AC_CHECK_HEADERS(sys/uio.h)
-    GLIBCXX_CHECK_WRITEV
     ;;
   *-qnx6.1* | *-qnx6.2*)
     SECTION_FLAGS='-ffunction-sections -fdata-sections'
@@ -284,29 +220,13 @@ case "${host}" in
       *-solaris2.7 | *-solaris2.8 | *-solaris2.9 | *-solaris2.10)
          GLIBCXX_CHECK_LINKER_FEATURES
          AC_DEFINE(HAVE_MBSTATE_T)
-         AC_DEFINE(HAVE_POLL)
-         AC_DEFINE(HAVE_S_ISREG)
          AC_DEFINE(HAVE_LC_MESSAGES)
          AC_DEFINE(HAVE_FINITE)
          AC_DEFINE(HAVE_FPCLASS)
          # All of the dependencies for wide character support are here, so
          # turn it on. 
          AC_DEFINE(_GLIBCXX_USE_WCHAR_T) 
-         # Are these tested for even when cross?
-         AC_DEFINE(HAVE_FLOAT_H)
-         AC_DEFINE(HAVE_IEEEFP_H)
-         AC_DEFINE(HAVE_INTTYPES_H)
-         AC_DEFINE(HAVE_LOCALE_H)
-         AC_DEFINE(HAVE_NAN_H)
-         AC_DEFINE(HAVE_SYS_FILIO_H)
-         AC_DEFINE(HAVE_SYS_IOCTL_H)
-         AC_DEFINE(HAVE_SYS_ISA_DEFS_H)
-         AC_DEFINE(HAVE_SYS_RESOURCE_H)
-         AC_DEFINE(HAVE_SYS_TIME_H)
-         AC_DEFINE(HAVE_SYS_TYPES_H)
-         AC_DEFINE(HAVE_UNISTD_H)
-         AC_DEFINE(HAVE_WCHAR_H)
-         AC_DEFINE(HAVE_WCTYPE_H)
+
          AC_DEFINE(HAVE_LIBM)
         ;;
     esac
@@ -338,8 +258,6 @@ case "${host}" in
     AC_DEFINE(HAVE_HYPOT)
     ;;
   *-tpf)
-    AC_CHECK_HEADERS([nan.h endian.h machine/endian.h  \
-      sys/param.h sys/types.h locale.h float.h inttypes.h])
     SECTION_FLAGS='-ffunction-sections -fdata-sections'
     AC_SUBST(SECTION_FLAGS)
     GLIBCXX_CHECK_LINKER_FEATURES