Fix binary /usr/bin/sassc not striped problem.

sassc.spec

@@ -2,7 +2,7 @@
 
 Name:           sassc
 Version:        3.5.0
-Release:        3
+Release:        4
 Summary:        Libsass command line driver
 License:        MIT
 URL:            https://github.com/sass/sassc
@@ -22,6 +22,7 @@ if libsass supports that in the future.
 %autosetup -p1
 
 %build
+export CFLAGS="${RPM_OPT_FLAGS}"
 sed -i.bak '
 /^$(SASSC_EXE):/s/libsass//
 /^build-shared:/s/$(LIB_SHARED)//
@@ -43,6 +44,9 @@ rm -rf docs/**/*windows*
 %{_bindir}/%{name}
 
 %changelog
+* Wed Sep 08 2021 sunguoshuai <sunguoshuai@huawei.com> - 3.5.0-4
+- Fix binary /usr/bin/sassc not striped problem.
+
 * Mon May 31 2021 huanghaitao <huanghaitao8@huawei.com> - 3.5.0-3
 - Completing build dependencies to fix gcc compiler missing error