summaryrefslogtreecommitdiff
path: root/top
diff options
context:
space:
mode:
Diffstat (limited to 'top')
-rw-r--r--top/maint.mk11
1 files changed, 11 insertions, 0 deletions
diff --git a/top/maint.mk b/top/maint.mk
index 4b0f4b74dd..839f7b2c37 100644
--- a/top/maint.mk
+++ b/top/maint.mk
@@ -219,6 +219,17 @@ syntax-check: $(local-check)
# when filtering by name via in_files, we explicitly filter out matching
# names here as well.
+# Initialize each, so that envvar settings cannot interfere.
+export require =
+export prohibit =
+export exclude =
+export in_vc_files =
+export in_files =
+export containing =
+export non_containing =
+export halt =
+export with_grep_options =
+
# By default, _sc_search_regexp does not ignore case.
export ignore_case =
_ignore_case = $$(test -n "$$ignore_case" && printf %s -i || :)