re PR tree-optimization/59038 (r204398 causes 186.crafty init.c to be miscompiled)

[thirdparty/gcc.git] / libgcc / configure

diff --git a/libgcc/configure b/libgcc/configure
index a226f8116595c1eba6f9a1c0e42da32c1e0f7824..29fa46f597a48d880471fe38ab83ef836b462b89 100644 (file)
--- a/libgcc/configure
+++ b/libgcc/configure
@@ -558,6 +558,7 @@ LIBOBJS
 asm_hidden_op
 extra_parts
 cpu_type
+thread_header
 tm_defines
 tm_file
 tmake_file
@@ -607,6 +608,7 @@ build_os
 build_vendor
 build_cpu
 build
+enable_vtable_verify
 enable_shared
 libgcc_topdir
 target_alias
@@ -654,6 +656,7 @@ with_target_subdir
 with_cross_host
 with_ld
 enable_shared
+enable_vtable_verify
 enable_version_specific_runtime_libs
 with_slibdir
 enable_maintainer_mode
@@ -1287,6 +1290,7 @@ Optional Features:
   --disable-FEATURE       do not include FEATURE (same as --enable-FEATURE=no)
   --enable-FEATURE[=ARG]  include FEATURE [ARG=yes]
   --disable-shared        don't provide a shared libgcc
+  --enable-vtable-verify    Enable vtable verification feature
   --enable-version-specific-runtime-libs    Specify that runtime libraries should be installed in a compiler-specific directory
   --enable-maintainer-mode
                           enable make rules and dependencies not useful (and
@@ -2139,6 +2143,19 @@ fi
 
 
 
+# Check whether --enable-vtable-verify was given.
+if test "${enable_vtable_verify+set}" = set; then :
+  enableval=$enable_vtable_verify; case "$enableval" in
+ yes) enable_vtable_verify=yes ;;
+ no)  enable_vtable_verify=no ;;
+ *)   enable_vtable_verify=no;;
+ esac
+else
+  enable_vtable_verify=no
+fi
+
+
+
 # Make sure we can run config.sub.
 $SHELL "$ac_aux_dir/config.sub" sun4 >/dev/null 2>&1 ||
   as_fn_error "cannot run $SHELL $ac_aux_dir/config.sub" "$LINENO" 5
@@ -2227,7 +2244,9 @@ case "${host}" in
     hppa*64*-*-hpux*)
        # PIC is the default for 64-bit PA HP-UX.
        ;;
-    i[34567]86-*-cygwin* | i[34567]86-*-mingw* | x86_64-*-mingw*)
+    i[34567]86-*-cygwin* | x86_64-*-cygwin*)
+       ;;
+    i[34567]86-*-mingw* | x86_64-*-mingw*)
        ;;
     i[34567]86-*-interix[3-9]*)
        # Interix 3.x gcc -fpic/-fPIC options generate broken code.
@@ -4075,8 +4094,9 @@ else
 
   case $host in
     powerpc*-*-linux* | i?86*-*-linux* | x86_64*-*-linux* | s390*-*-linux* | \
+    i?86*-*-gnu* | \
     i?86*-*-mingw* | x86_64*-*-mingw* | \
-    i?86*-*-cygwin*)
+    i?86*-*-cygwin* | x86_64*-*-cygwin*)
       enable_decimal_float=yes
       ;;
     *)
@@ -4503,6 +4523,7 @@ tm_file="${tm_file_}"
 
 
 # Map from thread model to thread header.
+
 case $target_thread_file in
     aix)       thread_header=config/rs6000/gthr-aix.h ;;
     dce)       thread_header=config/pa/gthr-dce.h ;;
@@ -4516,6 +4537,8 @@ case $target_thread_file in
     win32)     thread_header=config/i386/gthr-win32.h ;;
 esac
 
+
+
 # Substitute configuration variables