From 2164412bb54087b1c540893acf5384ef9bf03f1d Mon Sep 17 00:00:00 2001
From: Reiner Herrmann <reiner@reiner-h.de>
Date: Wed, 13 Oct 2021 21:27:59 +0000
Subject: build: allow building with sanitizer (#4594)

---
 configure | 54 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 54 insertions(+)

(limited to 'configure')

diff --git a/configure b/configure
index 33a4ca9fb..557f5beb2 100755
--- a/configure
+++ b/configure
@@ -711,6 +711,7 @@ ac_subst_files=''
 ac_user_opts='
 enable_option_checking
 enable_analyzer
+enable_sanitizer
 enable_apparmor
 enable_selinux
 enable_dbusproxy
@@ -1368,6 +1369,8 @@ Optional Features:
   --disable-FEATURE       do not include FEATURE (same as --enable-FEATURE=no)
   --enable-FEATURE[=ARG]  include FEATURE [ARG=yes]
   --enable-analyzer       enable GCC static analyzer
+  --enable-sanitizer=[address | memory | undefined]
+                          enable a compiler-based sanitizer (debug)
   --enable-apparmor       enable apparmor
   --enable-selinux        SELinux labeling support
   --disable-dbusproxy     disable dbus proxy
@@ -3294,6 +3297,57 @@ if test "x$enable_analyzer" = "xyes"; then :
 
 fi
 
+# Check whether --enable-sanitizer was given.
+if test "${enable_sanitizer+set}" = set; then :
+  enableval=$enable_sanitizer;
+else
+  enable_sanitizer=no
+fi
+
+if test "x$enable_sanitizer" != "xno" ; then :
+  as_CACHEVAR=`$as_echo "ax_cv_check_cflags__-fsanitize=$enable_sanitizer" | $as_tr_sh`
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether C compiler accepts -fsanitize=$enable_sanitizer" >&5
+$as_echo_n "checking whether C compiler accepts -fsanitize=$enable_sanitizer... " >&6; }
+if eval \${$as_CACHEVAR+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+  ax_check_save_flags=$CFLAGS
+  CFLAGS="$CFLAGS  -fsanitize=$enable_sanitizer"
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  eval "$as_CACHEVAR=yes"
+else
+  eval "$as_CACHEVAR=no"
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+  CFLAGS=$ax_check_save_flags
+fi
+eval ac_res=\$$as_CACHEVAR
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+if eval test \"x\$"$as_CACHEVAR"\" = x"yes"; then :
+
+		EXTRA_CFLAGS="$EXTRA_CFLAGS -fsanitize=$enable_sanitizer -fno-omit-frame-pointer"
+		EXTRA_LDFLAGS="$EXTRA_LDFLAGS -fsanitize=$enable_sanitizer"
+
+else
+  as_fn_error $? "sanitizer not supported: $enable_sanitizer" "$LINENO" 5
+
+fi
+
+fi
+
 HAVE_APPARMOR=""
 # Check whether --enable-apparmor was given.
 if test "${enable_apparmor+set}" = set; then :
-- 
cgit v1.2.3-54-g00ecf