fix build

.SRCINFO

@@ -1,7 +1,7 @@
 pkgbase = mmc-utils
 	pkgdesc = Userspace tools for MMC/SD devices
-	pkgver = r113.9582278
-	pkgrel = 3
+	pkgver = r128.f757f41
+	pkgrel = 2
 	epoch = 1
 	url = https://git.kernel.org/pub/scm/utils/mmc/mmc-utils.git
 	arch = x86_64

PKGBUILD

@@ -3,8 +3,8 @@
 # Contributor: Vincent Bernardoff <vb AT luminar.eu.org>
 
 pkgname=mmc-utils
-pkgver=r113.9582278
-pkgrel=3
+pkgver=r128.f757f41
+pkgrel=2
 epoch=1
 pkgdesc="Userspace tools for MMC/SD devices"
 arch=('x86_64' 'i686' 'aarch64' 'armv7h' 'armv6h')
@@ -21,6 +21,11 @@ pkgver() {
 	printf "r%s.%s" "$(git rev-list --count HEAD)" "$(git rev-parse --short HEAD)"
 }
 
+prepare() {
+	cd "${pkgname}"
+	sed -i 's,-Werror,,g' Makefile
+}
+
 build() {
 	cd "${pkgname}"
 	make