syntax-check: detect unnecessary inclusion of openat.h

* top/maint.mk (sc_prohibit_openat_without_use): New rule.

diff --git a/ChangeLog b/ChangeLog
index 69c5c16..c53c7f8 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2009-09-05  Jim Meyering  <meyering@redhat.com>
+
+       syntax-check: detect unnecessary inclusion of openat.h
+       * top/maint.mk (sc_prohibit_openat_without_use): New rule.
+
 2009-09-05  Bruno Haible  <bruno@clisp.org>
 
        Support towlower, towupper.

diff --git a/top/maint.mk b/top/maint.mk
index 929d8c3..45bc0c9 100644 (file)
--- a/top/maint.mk
+++ b/top/maint.mk
@@ -293,6 +293,11 @@ sc_prohibit_root_dev_ino_without_use:
        re='(\<ROOT_DEV_INO_(CHECK|WARN)\>|\<get_root_dev_ino *\()' \
          $(_header_without_use)
 
+sc_prohibit_openat_without_use:
+       @h='"openat.h"' \
+       re='\<(openat_(permissive|needs_fchdir|(save|restore)_fail)|l?ch(own|mod)at)\>' \
+         $(_header_without_use)
+
 # Prohibit the inclusion of c-ctype.h without an actual use.
 ctype_re = isalnum|isalpha|isascii|isblank|iscntrl|isdigit|isgraph|islower\
 |isprint|ispunct|isspace|isupper|isxdigit|tolower|toupper