grep: unset GREP_OPTIONS before spawning external grep

[git.git] / builtin-grep.c

diff --git a/builtin-grep.c b/builtin-grep.c
index 01be9bf7ff74731969384cc91dad2e20d08d81bc..9a9e3fccd58adb9c984707e9398fa194ad7284a7 100644 (file)
--- a/builtin-grep.c
+++ b/builtin-grep.c
@@ -433,7 +433,11 @@ static int external_grep(struct grep_opt *opt, const char **paths, int cached)
 
                if (opt->color_external && strlen(opt->color_external) > 0)
                        push_arg(opt->color_external);
+       } else {
+               unsetenv("GREP_COLOR");
+               unsetenv("GREP_COLORS");
        }
+       unsetenv("GREP_OPTIONS");
 
        hit = 0;
        argc = nr;