PR tree-optimization/71625 - missing strlen optimization on different array initializ...

[gcc.git] / libbacktrace / configure

diff --git a/libbacktrace/configure b/libbacktrace/configure
index 8943b0ca7fd8a1a30c92a27a23d91eed55d6752e..d5a9d79e15c467100f4c3181d9da24afb53f46e7 100755 (executable)
--- a/libbacktrace/configure
+++ b/libbacktrace/configure
@@ -1386,8 +1386,7 @@ Optional Features:
                           optimize for fast installation [default=yes]
   --disable-libtool-lock  avoid locking (might break parallel builds)
   --disable-largefile     omit support for large files
-  --enable-cet            enable Intel CET in target libraries
-                          [default=default]
+  --enable-cet            enable Intel CET in target libraries [default=no]
   --enable-host-shared    build host code as shared libraries
 
 Optional Packages:
@@ -11149,7 +11148,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 11152 "configure"
+#line 11151 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -11255,7 +11254,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 11258 "configure"
+#line 11257 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -11793,27 +11792,37 @@ if test -n "${with_target_subdir}"; then
 if test "${enable_cet+set}" = set; then :
   enableval=$enable_cet;
       case "$enableval" in
-       yes|no|default) ;;
+       yes|no|auto) ;;
        *) as_fn_error "Unknown argument to enable/disable cet" "$LINENO" 5 ;;
                           esac
 
 else
-  enable_cet=default
+  enable_cet=no
 fi
 
 
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for CET support" >&5
+$as_echo_n "checking for CET support... " >&6; }
+
 case "$host" in
   i[34567]86-*-linux* | x86_64-*-linux*)
     case "$enable_cet" in
-      default)
-       # Check if assembler supports CET.
+      auto)
+       # Check if target supports multi-byte NOPs
+       # and if assembler supports CET insn.
        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
 main ()
 {
+
+#if !defined(__SSE2__)
+#error target does not support multi-byte NOPs
+#else
 asm ("setssbsy");
+#endif
+
   ;
   return 0;
 }
@@ -11852,7 +11861,12 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
     ;;
 esac
 if test x$enable_cet = xyes; then
-  CET_FLAGS="-fcf-protection -mcet"
+  CET_FLAGS="-fcf-protection -mshstk"
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
 fi
 
   EXTRA_FLAGS="$EXTRA_FLAGS $CET_FLAGS"
@@ -12959,19 +12973,11 @@ fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_z_compress" >&5
 $as_echo "$ac_cv_lib_z_compress" >&6; }
 if test "x$ac_cv_lib_z_compress" = x""yes; then :
-  cat >>confdefs.h <<_ACEOF
-#define HAVE_LIBZ 1
-_ACEOF
-
-  LIBS="-lz $LIBS"
-
-fi
-
-if test $ac_cv_lib_z_compress = "yes"; then
 
 $as_echo "#define HAVE_ZLIB 1" >>confdefs.h
 
 fi
+
  if test "$ac_cv_lib_z_compress" = yes; then
   HAVE_ZLIB_TRUE=
   HAVE_ZLIB_FALSE='#'