From 092e3205ab3be1605c6769fbf774619d13526907 Mon Sep 17 00:00:00 2001
From: Haru <haru@dotalux.com>
Date: Sun, 25 Aug 2019 17:21:24 +0200
Subject: Disable some warnings when compiling with gcc-9

The warning flag -Warray-bounds is currently not compatible with the ZEROED_BLOCK implementation

Signed-off-by: Haru <haru@dotalux.com>
---
 configure    | 90 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++-
 configure.ac |  1 +
 2 files changed, 90 insertions(+), 1 deletion(-)

diff --git a/configure b/configure
index 65e716b09..957398296 100755
--- a/configure
+++ b/configure
@@ -1,5 +1,5 @@
 #! /bin/sh
-# From configure.ac 20c3ecff9.
+# From configure.ac 76896e850.
 # Guess values for system-dependent variables and create Makefiles.
 # Generated by GNU Autoconf 2.69.
 #
@@ -7960,6 +7960,94 @@ fi
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
 
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+						fi
+
+else
+
+						{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+						CFLAGS="$OLD_CFLAGS"
+
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+else
+
+				{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+				CFLAGS="$OLD_CFLAGS"
+
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+
+
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC supports -Wno-array-bounds" >&5
+$as_echo_n "checking whether $CC supports -Wno-array-bounds... " >&6; }
+		OLD_CFLAGS="$CFLAGS"
+		CFLAGS="$CFLAGS -Werror -Wno-array-bounds"
+		cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int foo;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+
+				# Recent versions of gcc don't fail if -Wno-foo is not recognized
+				# (unless there are also other warnings), so we also check for -Wfoo
+				# which always fails if not supported
+				CFLAGS="$OLD_CFLAGS -Werror -Warray-bounds"
+				cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int foo;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+
+						{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+						CFLAGS="$OLD_CFLAGS -Wno-array-bounds"
+						# Optionally, run a test
+						if test "x" != "x"; then
+							{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC can actually use -Wno-array-bounds" >&5
+$as_echo_n "checking whether $CC can actually use -Wno-array-bounds... " >&6; }
+							CFLAGS="$OLD_CFLAGS -Werror -Warray-bounds"
+							cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+
+									{ $as_echo "$as_me:${as_lineno-$LINENO}: result: not needed but enabled" >&5
+$as_echo "not needed but enabled" >&6; }
+									CFLAGS="$OLD_CFLAGS"
+
+else
+
+									CFLAGS="$OLD_CFLAGS -Werror -Wno-array-bounds"
+									cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+
+											{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+											CFLAGS="$OLD_CFLAGS -Wno-array-bounds"
+
+else
+
+											{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+											CFLAGS="$OLD_CFLAGS"
+
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 						fi
diff --git a/configure.ac b/configure.ac
index ec9e35cfe..cbb9a5c46 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1090,6 +1090,7 @@ AC_CHECK_COMPILER_WNOFLAG(format-nonliteral)
 AC_CHECK_COMPILER_WNOFLAG(switch)
 AC_CHECK_COMPILER_WNOFLAG(missing-field-initializers)
 AC_CHECK_COMPILER_WNOFLAG(suggest-attribute=format)
+AC_CHECK_COMPILER_WNOFLAG(array-bounds)
 
 # Certain versions of gcc make -Wshadow completely useless by making it flood
 # you with unnecessary warnings <https://lkml.org/lkml/2006/11/28/239>
-- 
cgit v1.2.3-60-g2f50