gh-112301: Add fortify source level 3 to default compiler options (gh-121520)

1 files changed, 39 insertions, 0 deletions

diff --git a/configure b/configure
index 73d3bda..36f4bf7 100755
--- a/configure
+++ b/configure
@@ -9691,6 +9691,45 @@ else $as_nop
 printf "%s\n" "$as_me: WARNING: -Wtrampolines not supported" >&2;}
 fi
 
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether C compiler accepts -D_FORTIFY_SOURCE=3" >&5
+printf %s "checking whether C compiler accepts -D_FORTIFY_SOURCE=3... " >&6; }
+if test ${ax_cv_check_cflags___D_FORTIFY_SOURCE_3+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+
+  ax_check_save_flags=$CFLAGS
+  CFLAGS="$CFLAGS  -D_FORTIFY_SOURCE=3"
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main (void)
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+  ax_cv_check_cflags___D_FORTIFY_SOURCE_3=yes
+else $as_nop
+  ax_cv_check_cflags___D_FORTIFY_SOURCE_3=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  CFLAGS=$ax_check_save_flags
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ax_cv_check_cflags___D_FORTIFY_SOURCE_3" >&5
+printf "%s\n" "$ax_cv_check_cflags___D_FORTIFY_SOURCE_3" >&6; }
+if test "x$ax_cv_check_cflags___D_FORTIFY_SOURCE_3" = xyes
+then :
+  BASECFLAGS="$BASECFLAGS -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=3"
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: -D_FORTIFY_SOURCE=3 not supported" >&5
+printf "%s\n" "$as_me: WARNING: -D_FORTIFY_SOURCE=3 not supported" >&2;}
+fi
+
 
 case $GCC in
 yes)