!16 add strip secure compilation options

From: @zzm_567
Reviewed-by: @yanan-rock
Signed-off-by: @yanan-rock

giflib.spec

@@ -2,7 +2,7 @@
 
 Name:          giflib
 Version:       5.2.1
-Release:       3 
+Release:       4
 Summary:       A library and utilities for processing GIFs
 License:       MIT
 URL:           http://www.sourceforge.net/projects/giflib/
@@ -42,7 +42,7 @@ format imange files.
 %autosetup -n %{name}-%{version} -p1
 
 %build
-%make_build
+%make_build CFLAGS="$RPM_OPT_FLAGS -s"
 
 %install
 %make_install PREFIX="%{_prefix}" LIBDIR="%{_libdir}"
@@ -73,6 +73,9 @@ rm -f %{buildroot}/debugsourcefiles.list
 %{_bindir}/gif*
 
 %changelog
+* Sat Sep 4 2021 zhanzhimin <zhanzhimin@huawei.com> - 5.2.1-4
+- strip binary files
+
 * Thu May 20 2021 liuyumeng <liuyumeng5@huawei.com> - 5.2.1-3
 - Add a package named utils