From: Stefano Lattarini <stefano.lattarini@gmail.com>
Date: Sat, 8 Dec 2012 17:06:12 +0000 (+0100)
Subject: maint.mk: avoid extra forks
X-Git-Tag: v0.1~328
X-Git-Url: http://erislabs.org.uk/gitweb/?a=commitdiff_plain;h=cc32620e2501ca4f17f89492be56caf1f1185a47;p=gnulib.git

maint.mk: avoid extra forks

* top/maint.mk (_cfg_mk): The GNU make manual documents that
"$(wildcard FILE)" expands to empty if FILE doesn't exist.
So use that instead of "$(shell test -f FILE && echo FILE)".
---

diff --git a/ChangeLog b/ChangeLog
index b4b242e33..413e435eb 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2012-12-08  Stefano Lattarini  <stefano.lattarini@gmail.com>
+
+	maint.mk: avoid extra forks
+	* top/maint.mk (_cfg_mk): The GNU make manual documents that
+	"$(wildcard FILE)" expands to empty if FILE doesn't exist.
+	So use that instead of "$(shell test -f FILE && echo FILE)".
+
 2012-12-07  Paul Eggert  <eggert@cs.ucla.edu>
 
 	vasnprintf: fix ASCII_ONLY typo
diff --git a/top/maint.mk b/top/maint.mk
index cd365e774..fd2b41bc0 100644
--- a/top/maint.mk
+++ b/top/maint.mk
@@ -155,7 +155,7 @@ export LC_ALL = C
 ## Sanity checks.  ##
 ## --------------- ##
 
-_cfg_mk := $(shell test -f $(srcdir)/cfg.mk && echo '$(srcdir)/cfg.mk')
+_cfg_mk := $(wildcard $(srcdir)/cfg.mk)
 
 # Collect the names of rules starting with 'sc_'.
 syntax-check-rules := $(sort $(shell sed -n 's/^\(sc_[a-zA-Z0-9_-]*\):.*/\1/p' \