# HG changeset patch
# User Jim Meyering <meyering@redhat.com>
# Date 1269179614 -3600
# Node ID 44ae789f77b01734b979465856987d36aa9ff7d1
# Parent  12650cb16dc5bda5907ce4dd5702a8da15e16683
maint.mk: prohibit inclusion of "intprops.h" without use

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

diff --git a/ChangeLog b/ChangeLog
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2010-03-21  Jim Meyering  <meyering@redhat.com>
+
+	maint.mk: prohibit inclusion of "intprops.h" without use
+	* top/maint.mk (sc_prohibit_intprops_without_use): New rule.
+
 2010-03-21  Bruno Haible  <bruno@clisp.org>
 
 	New module 'grantpt'.
diff --git a/top/maint.mk b/top/maint.mk
--- a/top/maint.mk
+++ b/top/maint.mk
@@ -452,6 +452,19 @@
 	re='\<($(_sig_function_re)) *\(|\<($(_sig_syms_re))\>'		\
 	  $(_header_without_use)
 
+# Get the list of symbol names with this:
+# perl -lne '/^# *define (\w+)\(/ and print $1' lib/intprops.h|grep -v '^s'|fmt
+_intprops_names =							\
+  TYPE_IS_INTEGER TYPE_TWOS_COMPLEMENT TYPE_ONES_COMPLEMENT		\
+  TYPE_SIGNED_MAGNITUDE TYPE_SIGNED TYPE_MINIMUM TYPE_MAXIMUM		\
+  INT_STRLEN_BOUND INT_BUFSIZE_BOUND
+_intprops_syms_re = $(subst $(_sp),|,$(strip $(_intprops_names)))
+# Prohibit the inclusion of intprops.h without an actual use.
+sc_prohibit_intprops_without_use:
+	@h='"intprops.h"'						\
+	re='\<($(_intprops_syms_re)) *\('				\
+	  $(_header_without_use)
+
 sc_obsolete_symbols:
 	@re='\<(HAVE''_FCNTL_H|O''_NDELAY)\>'				\
 	msg='do not use HAVE''_FCNTL_H or O'_NDELAY			\