From: Peter Eisentraut <peter_e@gmx.net>
Date: Sat, 13 Apr 2013 02:45:51 +0000 (-0400)
Subject: Fix sporadic rebuilds for .pc files
X-Git-Tag: REL9_3_BETA1~99
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=ba66752d278818b6b8797aec2e36cccf727db055;p=postgresql

Fix sporadic rebuilds for .pc files

The build of .pc (pkg-config) files depends on all makefiles in use, and
in dependency tracking mode, the previous coding ended up including
/dev/null as a makefile.  Apparently, on some platforms the modification
time of /dev/null changes sporadically, and so the .pc files would end
up being rebuilt every so often.  Fix that by changing the makefile code
to do without using /dev/null.
---

diff --git a/src/Makefile.global.in b/src/Makefile.global.in
index 1077e0b98a..80f509fa87 100644
--- a/src/Makefile.global.in
+++ b/src/Makefile.global.in
@@ -687,9 +687,12 @@ ifeq ($(GCC), yes)
 endif # GCC
 
 # Include all the dependency files generated for the current
-# directory. List /dev/null as dummy because if the wildcard expands
-# to nothing then make would complain.
--include $(wildcard $(DEPDIR)/*.Po) /dev/null
+# directory. Note that make would complain if include was called with
+# no arguments.
+Po_files := $(wildcard $(DEPDIR)/*.Po)
+ifneq (,$(Po_files))
+include $(Po_files)
+endif
 
 # hook for clean-up
 clean distclean maintainer-clean: clean-deps