diff --git a/sdk_container/src/third_party/portage-stable/app-crypt/mhash/mhash-0.9.9.9-r3.ebuild b/sdk_container/src/third_party/portage-stable/app-crypt/mhash/mhash-0.9.9.9-r3.ebuild
index ed01e8b388..0d5b3371eb 100644
--- a/sdk_container/src/third_party/portage-stable/app-crypt/mhash/mhash-0.9.9.9-r3.ebuild
+++ b/sdk_container/src/third_party/portage-stable/app-crypt/mhash/mhash-0.9.9.9-r3.ebuild
@@ -3,7 +3,7 @@
 
 EAPI=8
 
-inherit autotools
+inherit autotools flag-o-matic
 
 DESCRIPTION="Library providing a uniform interface to a large number of hash algorithms"
 HOMEPAGE="https://mhash.sourceforge.net/"
@@ -52,6 +52,9 @@ src_prepare() {
 }
 
 src_configure() {
+	# bug #943960
+	append-cflags -std=gnu17
+
 	econf $(use_enable static-libs static)
 }