git remote update: Report error for non-existing groups

diff --git a/Makefile b/Makefile
index 320c89786cf5b1046b7b794f59cd4ce118d81c95..7867eaccdb90729aef26dc9f67a45a5a74961aae 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -263,6 +263,18 @@ SPARSE_FLAGS = -D__BIG_ENDIAN__ -D__powerpc__
 BASIC_CFLAGS =
 BASIC_LDFLAGS =
 
+# Guard against environment variables
+BUILTIN_OBJS =
+BUILT_INS =
+COMPAT_CFLAGS =
+COMPAT_OBJS =
+LIB_H =
+LIB_OBJS =
+PROGRAMS =
+SCRIPT_PERL =
+SCRIPT_SH =
+TEST_PROGRAMS =
+
 SCRIPT_SH += git-am.sh
 SCRIPT_SH += git-bisect.sh
 SCRIPT_SH += git-filter-branch.sh