PR debug/43058

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

diff --git a/gcc/configure b/gcc/configure
index 0515812..2384f42 100755 (executable)
--- a/gcc/configure
+++ b/gcc/configure
@@ -895,6 +895,7 @@ enable_initfini_array
 enable_sjlj_exceptions
 with_system_libunwind
 enable_secureplt
+enable_leading_mingw64_underscores
 enable_cld
 enable_win32_registry
 enable_static
@@ -1592,6 +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
@@ -10685,6 +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;
@@ -17094,7 +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 17097 "configure"
+#line 17111 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -17200,7 +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 17203 "configure"
+#line 17217 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -21329,6 +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
        ;;
       *)
@@ -23212,7 +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; }
@@ -23253,6 +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*-*-*)
@@ -24607,7 +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
@@ -24634,7 +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