gnulib is excluded.
---
cfg.mk | 24 ++++++++++++++++++++++++
1 file changed, 24 insertions(+)
diff --git a/cfg.mk b/cfg.mk
index e60c4e3..dd67816 100644
--- a/cfg.mk
+++ b/cfg.mk
@@ -722,6 +722,30 @@ sc_prohibit_exit_in_tests:
halt='use return, not exit(), in tests' \
$(_sc_search_regexp)
+# Don't include duplicate header in the source (either *.c or *.h)
+sc_prohibit_duplicate_header:
+ @fail=0; for i in $$($(VC_LIST_EXCEPT) | grep '\.[chx]$$'); do \
+ awk '/# *include.*\.h/ { \
+ match($$0, /[<"][^>"]*[">]/); \
+ arr[substr($$0, RSTART + 1, RLENGTH - 2)]++; \
+ } \
+ END { \
+ for (key in arr) { \
+ if (arr[key] > 1) { \
+ fail=1; \
+ printf("%d %s are included\n", arr[key], key); \
+ } \
+ } \
+ if (fail == 1) { \
+ printf("duplicate header(s) in " FILENAME "\n"); \
+ exit 1; \
+ } \
+ }' $$i || fail=1; \
+ done; \
+ if test $$fail -eq 1; then \
+ { echo "$(ME)": avoid duplicate headers >&2; exit 1; } \
+ fi;
+
# We don't use this feature of maint.mk.
prev_version_file = /dev/null
--
1.8.1.4
--
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