I went ahead and wrote the change:
Enable 'make syntax-check's sc_changelog rule.
* Makefile.maint (sc_changelog): Adapt to work with legacy
ChangeLog entry header lines.
* Makefile.cfg (local-checks-to-skip): Remove sc_changelog.
---
Makefile.cfg | 1 -
Makefile.maint | 6 +++++-
2 files changed, 5 insertions(+), 2 deletions(-)
diff --git a/Makefile.cfg b/Makefile.cfg
index 7e8ddcf..e0d5528 100644
--- a/Makefile.cfg
+++ b/Makefile.cfg
@@ -32,7 +32,6 @@ local-checks-to-skip = \
sc_GPL_version \
sc_always_defined_macros \
sc_cast_of_alloca_return_value \
- sc_changelog \
sc_dd_max_sym_length \
sc_error_exit_success \
sc_file_system \
diff --git a/Makefile.maint b/Makefile.maint
index a357d74..65d6fc2 100644
--- a/Makefile.maint
+++ b/Makefile.maint
@@ -166,8 +166,12 @@ sc_obsolete_symbols:
# FIXME: warn about definitions of EXIT_FAILURE, EXIT_SUCCESS, STREQ
# Each nonempty line must start with a year number, or a TAB.
+# Or day-of-week+space.
+changelog_entry_header_regexp = \
+ ([12][0-9][0-9][0-9]| .|(Mon|Tue|Wed|Thu|Fri|Sat|Sun) )
sc_changelog:
- @grep -n '^[^12 ]' $$(find . -maxdepth 2 -name ChangeLog) && \
+ @grep -Evn '(^$$|^$(changelog_entry_header_regexp))' \
+ $$(find . -maxdepth 2 -name ChangeLog) && \
{ echo '$(ME): found unexpected prefix in a ChangeLog' 1>&2; \
exit 1; } || :
--
1.5.5.rc2.7.g144a