Travis CI: removed -Werror from powerpc compilation
diff --git a/Makefile b/Makefile
index a51eab4..9572497 100644
--- a/Makefile
+++ b/Makefile
@@ -107,11 +107,11 @@
 
 ppctest: clean
 	$(MAKE) -C $(PRGDIR) datagen   # use native, faster
-	$(MAKE) -C $(PRGDIR) test CC=powerpc-linux-gnu-gcc ZSTDRTTEST= MOREFLAGS="-Werror -static"
+	$(MAKE) -C $(PRGDIR) test CC=powerpc-linux-gnu-gcc ZSTDRTTEST= MOREFLAGS="-static"
 
 ppc64test: clean
 	$(MAKE) -C $(PRGDIR) datagen   # use native, faster
-	$(MAKE) -C $(PRGDIR) test CC=powerpc-linux-gnu-gcc ZSTDRTTEST= MOREFLAGS="-m64 -Werror -static"
+	$(MAKE) -C $(PRGDIR) test CC=powerpc-linux-gnu-gcc ZSTDRTTEST= MOREFLAGS="-m64 -static"
 
 usan: clean
 	$(MAKE) test CC=clang MOREFLAGS="-g -fsanitize=undefined"