gcc:

[pf3gnuchains/gcc-fork.git] / gcc / configure.ac

diff --git a/gcc/configure.ac b/gcc/configure.ac
index aa0fa4c..3784338 100644 (file)
--- a/gcc/configure.ac
+++ b/gcc/configure.ac
@@ -1024,22 +1024,6 @@ AC_CHECK_FUNCS(times clock kill getrlimit setrlimit atoll atoq \
        gettimeofday mbstowcs wcswidth mmap mincore setlocale \
        gcc_UNLOCKED_FUNCS)
 
-save_CPPFLAGS="$CPPFLAGS"
-save_LIBS="$LIBS"
-LIBS="$LIBS $LIBELFLIBS"
-AC_CHECK_FUNCS(elf_getshdrstrndx,,
-  [AC_CHECK_FUNCS(elf_getshstrndx,
-    [AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdlib.h>
-#include <libelf.h>
-int main()
-{
-  return elf_getshstrndx (NULL, 0) == 0;
-}]])], AC_DEFINE(HAVE_ELF_GETSHSTRNDX_GABI, 1,
-        [Define if elf_getshstrndx has gABI conformant return values.]))])]
-  )
-LIBS="$save_LIBS"
-CPPFLAGS="$save_CPPFLAGS"
-
 if test x$ac_cv_func_mbstowcs = xyes; then
   AC_CACHE_CHECK(whether mbstowcs works, gcc_cv_func_mbstowcs_works,
 [    AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdlib.h>
@@ -1568,14 +1552,6 @@ AC_ARG_ENABLE(secureplt,
 [  --enable-secureplt      enable -msecure-plt by default for PowerPC],
 [], [])
 
-AC_ARG_ENABLE(leading-mingw64-underscores,
-  AS_HELP_STRING([--enable-leading-mingw64-underscores],
-                 [Enable leading underscores on 64 bit mingw targets]),
-  [],[])
-AS_IF([ test x"$enable_leading_mingw64_underscores" = xyes ],
-  [AC_DEFINE(USE_MINGW64_LEADING_UNDERSCORES, 1,
-    [Define if we should use leading underscore on 64 bit mingw targets])])
-
 AC_ARG_ENABLE(cld,
 [  --enable-cld            enable -mcld by default for 32bit x86], [],
 [enable_cld=no])
@@ -2225,8 +2201,6 @@ else
        gcc_cv_ld_hidden=yes
        ;;
       *-*-solaris2.9* | *-*-solaris2.1[0-9]*)
-       # Support for .hidden in Sun ld appeared in Solaris 9 FCS, but
-       # .symbolic was only added in Solaris 9 12/02.
         gcc_cv_ld_hidden=yes
        ;;
       *)
@@ -3212,19 +3186,6 @@ foo:     nop
           rm -f conftest],
          [AC_DEFINE(HAVE_GAS_PE_SECREL32_RELOC, 1,
            [Define if your assembler and linker support 32-bit section relative relocs via '.secrel32 label'.])])
-       # Test if the assembler supports the extended form of the .section
-       # directive that specifies section alignment.  LTO support uses this,
-       # but normally only after installation, so we warn but don't fail the
-       # configure if LTO is enabled but the assembler does not support it.
-       gcc_GAS_CHECK_FEATURE([.section with alignment], gcc_cv_as_section_has_align,
-         [2,20,1],-fatal-warnings,[.section lto_test,"dr0"])
-       if test x$gcc_cv_as_section_has_align != xyes; then
-         case ",$enable_languages," in
-           *,lto,*)
-             AC_MSG_WARN([LTO for $target requires binutils >= 2.20.1, but version found appears insufficient; LTO will not work until binutils is upgraded.])
-             ;;
-         esac
-       fi
        ;;
     esac
 
@@ -4293,17 +4254,6 @@ changequote([,])dnl
                    AC_DEFINE(ENABLE_LTO, 1, [Define to enable LTO support.])
                    enable_lto=yes
                    AC_SUBST(enable_lto)
-                   # LTO needs to speak the platform's object file format, and has a
-                   # number of implementations of the required binary file access APIs.
-                   # ELF is the most common, and default.  We only link libelf if ELF
-                   # is indeed the selected format.
-                   LTO_BINARY_READER=${lto_binary_reader}
-                   LTO_USE_LIBELF=-lelf
-                   if test "x$lto_binary_reader" != "xlto-elf" ; then
-                     LTO_USE_LIBELF=
-                   fi
-                   AC_SUBST(LTO_BINARY_READER)
-                   AC_SUBST(LTO_USE_LIBELF)
                    ;;
                *) ;;
        esac
@@ -4490,23 +4440,15 @@ enable_plugin=yes; default_plugin=yes)
 pluginlibs=
 if test x"$enable_plugin" = x"yes"; then
 
-  case "${host}" in
-    *-*-darwin*)
-      export_sym_check="$gcc_cv_nm -g"
-    ;;
-    *)
-      export_sym_check="$gcc_cv_objdump -T"
-    ;;
-  esac
   AC_MSG_CHECKING([for exported symbols])
   echo "int main() {return 0;} int foobar() {return 0;}" > conftest.c
   ${CC} ${CFLAGS} ${LDFLAGS} conftest.c -o conftest > /dev/null 2>&1
-  if $export_sym_check conftest | grep foobar > /dev/null; then
+  if $gcc_cv_objdump -T conftest | grep foobar > /dev/null; then
     : # No need to use a flag
   else
     AC_MSG_CHECKING([for -rdynamic])
     ${CC} ${CFLAGS} ${LDFLAGS} -rdynamic conftest.c -o conftest > /dev/null 2>&1
-    if $export_sym_check conftest | grep foobar > /dev/null; then
+    if $gcc_cv_objdump -T conftest | grep foobar > /dev/null; then
       plugin_rdynamic=yes
       pluginlibs="-rdynamic"
     else
@@ -4526,14 +4468,7 @@ if test x"$enable_plugin" = x"yes"; then
 
   # Check that we can build shared objects with -fPIC -shared
   saved_LDFLAGS="$LDFLAGS"
-  case "${host}" in
-    *-*-darwin*)
-      LDFLAGS="$LDFLAGS -fPIC -shared -undefined dynamic_lookup"
-    ;;
-    *)
-      LDFLAGS="$LDFLAGS -fPIC -shared"
-    ;;
-  esac
+  LDFLAGS="$LDFLAGS -fPIC -shared"
   AC_MSG_CHECKING([for -fPIC -shared])
   AC_TRY_LINK(
     [extern int X;],[return X == 0;],