tests: slightly relax sc_cast_of_argument_to_free syntax check

* maint.mk (sc_cast_of_argument_to_free): Relax regexp slightly.
(sc_no_have_config_h): Add a comment.

diff --git a/maint.mk b/maint.mk
index 66f6d5d6f80f50889b7e9810e1e1386fe6cae772..e8671bd38b38eabcdb2524baac7251e9a0cad72d 100644 (file)
--- a/maint.mk
+++ b/maint.mk
@@ -102,7 +102,7 @@ sc_avoid_if_before_free:
            exit 1; } || :
 
 sc_cast_of_argument_to_free:
-       @grep -nE '\<free \(\(' $$($(VC_LIST_EXCEPT)) &&                \
+       @grep -nE '\<free *\( *\(' $$($(VC_LIST_EXCEPT)) &&             \
          { echo '$(ME): don'\''t cast free argument' 1>&2;             \
            exit 1; } || :
 
@@ -150,6 +150,7 @@ sc_file_system:
            'rewrite to use "file system"' 1>&2;                        \
            exit 1; } || :
 
+# Don't use cpp tests of this symbol.  All code assumes config.h is included.
 sc_no_have_config_h:
        @grep -n '^# *if.*HAVE''_CONFIG_H' $$($(VC_LIST_EXCEPT)) &&     \
          { echo '$(ME): found use of HAVE''_CONFIG_H; remove'          \