Invoke the script only once instead of once for every file.
---
build-aux/prohibit-duplicate-header.pl | 22 ++++++++++++++++++++++
cfg.mk | 32 +++++++-------------------------
2 files changed, 29 insertions(+), 25 deletions(-)
create mode 100644 build-aux/prohibit-duplicate-header.pl
diff --git a/build-aux/prohibit-duplicate-header.pl b/build-aux/prohibit-duplicate-header.pl
new file mode 100644
index 0000000..f9ab3f5
--- /dev/null
+++ b/build-aux/prohibit-duplicate-header.pl
@@ -0,0 +1,22 @@
+#!/usr/bin/perl
+
+use strict;
+
+my $file = " ";
+my $ret = 0;
+my %includes = ( );
+
+while (<>) {
+ if (not $file eq $ARGV) {
+ %includes = ( );
+ $file = $ARGV;
+ }
+ if (/^# *include *[<"]([^>"]*\.h)[">]/) {
+ $includes{$1}++;
+ if ($includes{$1} == 2) {
+ $ret = 1;
+ print STDERR "$1 included multiple times in $ARGV\n";
+ }
+ }
+}
+exit $ret;
diff --git a/cfg.mk b/cfg.mk
index 31da9f9..5d9b554 100644
--- a/cfg.mk
+++ b/cfg.mk
@@ -814,30 +814,6 @@ 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 '$(ME): avoid duplicate headers' 1>&2; exit 1; } \
- fi;
-
# Don't include "libvirt/*.h" in "" form.
sc_prohibit_include_public_headers_quote:
@prohibit='# *include *"libvirt/.*\.h"' \
@@ -1098,9 +1074,15 @@ _autogen:
# regenerate HACKING as part of the syntax-check
ifneq ($(_gl-Makefile),)
-syntax-check: $(top_srcdir)/HACKING spacing-check test-wrap-argv
+syntax-check: $(top_srcdir)/HACKING spacing-check test-wrap-argv \
+ prohibit-duplicate-header
endif
+# Don't include duplicate header in the source (either *.c or *.h)
+prohibit-duplicate-header:
+ $(AM_V_GEN)files=$$($(VC_LIST_EXCEPT) | grep '\.[chx]$$'); \
+ $(PERL) -W $(top_srcdir)/build-aux/prohibit-duplicate-header.pl $$files
+
spacing-check:
$(AM_V_GEN)files=`$(VC_LIST) | grep '\.c$$'`; \
$(PERL) $(top_srcdir)/build-aux/check-spacing.pl $$files || \
--
2.7.3
--
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