X-Git-Url: http://git.sourceforge.jp/view?a=blobdiff_plain;f=gcc%2Fconfigure;h=2384f4249172d2d4ec3f527f6726dc1f7da98514;hb=9702264ef825c6e62581a8a2daf2c5405e480bbf;hp=53f5eb8e806e095f2255844bf0536795ea6f0a1f;hpb=993c17152a79499f1dcb8f0865f7f7a97755faee;p=pf3gnuchains%2Fgcc-fork.git

diff --git a/gcc/configure b/gcc/configure
index 53f5eb8e806..2384f424917 100755
--- a/gcc/configure
+++ b/gcc/configure
@@ -671,6 +671,8 @@ subdirs
 slibdir
 dollar
 gcc_tooldir
+LTO_USE_LIBELF
+LTO_BINARY_READER
 enable_lto
 MAINT
 zlibinc
@@ -893,6 +895,7 @@ enable_initfini_array
 enable_sjlj_exceptions
 with_system_libunwind
 enable_secureplt
+enable_leading_mingw64_underscores
 enable_cld
 enable_win32_registry
 enable_static
@@ -1590,6 +1593,8 @@ Optional Features:
   --enable-sjlj-exceptions
                           arrange to use setjmp/longjmp exception handling
   --enable-secureplt      enable -msecure-plt by default for PowerPC
+  --enable-leading-mingw64-underscores
+                          Enable leading underscores on 64 bit mingw targets
   --enable-cld            enable -mcld by default for 32bit x86
   --disable-win32-registry
                           disable lookup of installation paths in the
@@ -10683,6 +10688,17 @@ if test "${enable_secureplt+set}" = set; then :
 fi
 
 
+# Check whether --enable-leading-mingw64-underscores was given.
+if test "${enable_leading_mingw64_underscores+set}" = set; then :
+  enableval=$enable_leading_mingw64_underscores;
+fi
+
+if  test x"$enable_leading_mingw64_underscores" = xyes ; then :
+
+$as_echo "#define USE_MINGW64_LEADING_UNDERSCORES 1" >>confdefs.h
+
+fi
+
 # Check whether --enable-cld was given.
 if test "${enable_cld+set}" = set; then :
   enableval=$enable_cld;
@@ -17092,7 +17108,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 17095 "configure"
+#line 17111 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -17198,7 +17214,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 17201 "configure"
+#line 17217 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -21327,6 +21343,8 @@ 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
 	;;
       *)
@@ -22942,6 +22960,48 @@ if test $gcc_cv_as_ix86_pe_secrel32 = yes; then
 $as_echo "#define HAVE_GAS_PE_SECREL32_RELOC 1" >>confdefs.h
 
 fi
+	# 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.
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking assembler for .section with alignment" >&5
+$as_echo_n "checking assembler for .section with alignment... " >&6; }
+if test "${gcc_cv_as_section_has_align+set}" = set; then :
+  $as_echo_n "(cached) " >&6
+else
+  gcc_cv_as_section_has_align=no
+    if test $in_tree_gas = yes; then
+    if test $gcc_cv_gas_vers -ge `expr \( \( 2 \* 1000 \) + 20 \) \* 1000 + 1`
+  then gcc_cv_as_section_has_align=yes
+fi
+  elif test x$gcc_cv_as != x; then
+    echo '.section lto_test,"dr0"' > conftest.s
+    if { ac_try='$gcc_cv_as $gcc_cv_as_flags -fatal-warnings -o conftest.o conftest.s >&5'
+  { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; }
+    then
+	gcc_cv_as_section_has_align=yes
+    else
+      echo "configure: failed program was" >&5
+      cat conftest.s >&5
+    fi
+    rm -f conftest.o conftest.s
+  fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_as_section_has_align" >&5
+$as_echo "$gcc_cv_as_section_has_align" >&6; }
+
+	if test x$gcc_cv_as_section_has_align != xyes; then
+	  case ",$enable_languages," in
+	    *,lto,*)
+	      { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: LTO for $target requires binutils >= 2.20.1, but version found appears insufficient; LTO will not work until binutils is upgraded." >&5
+$as_echo "$as_me: WARNING: LTO for $target requires binutils >= 2.20.1, but version found appears insufficient; LTO will not work until binutils is upgraded." >&2;}
+	      ;;
+	  esac
+	fi
 	;;
     esac
 
@@ -23168,7 +23228,7 @@ $as_echo "#define HAVE_AS_IX86_DIFF_SECT_DELTA 1" >>confdefs.h
 
 fi
 
-    # This one is used unconditionally by i386.[ch]; it is to be defined
+    # These two are used unconditionally by i386.[ch]; it is to be defined
     # to 1 if the feature is present, 0 otherwise.
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking assembler for GOTOFF in data" >&5
 $as_echo_n "checking assembler for GOTOFF in data... " >&6; }
@@ -23209,6 +23269,40 @@ cat >>confdefs.h <<_ACEOF
 #define HAVE_AS_GOTOFF_IN_DATA `if test $gcc_cv_as_ix86_gotoff_in_data = yes; then echo 1; else echo 0; fi`
 _ACEOF
 
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking assembler for rep and lock prefix" >&5
+$as_echo_n "checking assembler for rep and lock prefix... " >&6; }
+if test "${gcc_cv_as_ix86_rep_lock_prefix+set}" = set; then :
+  $as_echo_n "(cached) " >&6
+else
+  gcc_cv_as_ix86_rep_lock_prefix=no
+  if test x$gcc_cv_as != x; then
+    echo 'rep movsl
+	 lock orl $0, (%esp)' > conftest.s
+    if { ac_try='$gcc_cv_as $gcc_cv_as_flags  -o conftest.o conftest.s >&5'
+  { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; }
+    then
+	gcc_cv_as_ix86_rep_lock_prefix=yes
+    else
+      echo "configure: failed program was" >&5
+      cat conftest.s >&5
+    fi
+    rm -f conftest.o conftest.s
+  fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_as_ix86_rep_lock_prefix" >&5
+$as_echo "$gcc_cv_as_ix86_rep_lock_prefix" >&6; }
+
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_AS_IX86_REP_LOCK_PREFIX `if test $gcc_cv_as_ix86_rep_lock_prefix = yes; then echo 1; else echo 0; fi`
+_ACEOF
+
+
     ;;
 
   ia64*-*-*)
@@ -24563,7 +24657,8 @@ EOF
     if $gcc_cv_ld -o conftest conftest.o --entry=_start --gc-sections 2>&1 \
 	 | grep "gc-sections option ignored" > /dev/null; then
       gcc_cv_ld_eh_gc_sections=no
-    elif $gcc_cv_objdump -h conftest | grep gcc_except_table > /dev/null; then
+    elif $gcc_cv_objdump -h conftest 2> /dev/null \
+         | grep gcc_except_table > /dev/null; then
       gcc_cv_ld_eh_gc_sections=yes
       # If no COMDAT groups, the compiler will emit .gnu.linkonce.t. sections.
       if test x$gcc_cv_as_comdat_group != xyes; then
@@ -24590,7 +24685,8 @@ EOF
 	  if $gcc_cv_ld -o conftest conftest.o --entry=_start --gc-sections 2>&1 \
 	       | grep "gc-sections option ignored" > /dev/null; then
 	    gcc_cv_ld_eh_gc_sections=no
-	  elif $gcc_cv_objdump -h conftest | grep gcc_except_table > /dev/null; then
+	  elif $gcc_cv_objdump -h conftest 2> /dev/null \
+	       | grep gcc_except_table > /dev/null; then
 	    gcc_cv_ld_eh_gc_sections=yes
 	  fi
 	fi
@@ -25078,6 +25174,17 @@ $as_echo "#define ENABLE_LTO 1" >>confdefs.h
 
 		    enable_lto=yes
 
+		    # 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
+
+
 		    ;;
 		*) ;;
 	esac
@@ -25276,17 +25383,25 @@ fi
 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
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for exported symbols" >&5
 $as_echo_n "checking for exported symbols... " >&6; }
   echo "int main() {return 0;} int foobar() {return 0;}" > conftest.c
   ${CC} ${CFLAGS} ${LDFLAGS} conftest.c -o conftest > /dev/null 2>&1
-  if $gcc_cv_objdump -T conftest | grep foobar > /dev/null; then
+  if $export_sym_check conftest | grep foobar > /dev/null; then
     : # No need to use a flag
   else
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -rdynamic" >&5
 $as_echo_n "checking for -rdynamic... " >&6; }
     ${CC} ${CFLAGS} ${LDFLAGS} -rdynamic conftest.c -o conftest > /dev/null 2>&1
-    if $gcc_cv_objdump -T conftest | grep foobar > /dev/null; then
+    if $export_sym_check conftest | grep foobar > /dev/null; then
       plugin_rdynamic=yes
       pluginlibs="-rdynamic"
     else
@@ -25362,7 +25477,14 @@ fi
 
   # Check that we can build shared objects with -fPIC -shared
   saved_LDFLAGS="$LDFLAGS"
-  LDFLAGS="$LDFLAGS -fPIC -shared"
+  case "${host}" in
+    *-*-darwin*)
+      LDFLAGS="$LDFLAGS -fPIC -shared -undefined dynamic_lookup"
+    ;;
+    *)
+      LDFLAGS="$LDFLAGS -fPIC -shared"
+    ;;
+  esac
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -fPIC -shared" >&5
 $as_echo_n "checking for -fPIC -shared... " >&6; }
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext