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[FYI] {master} deptrack: avoid few forks in configure (minor optimizatio
From: |
Stefano Lattarini |
Subject: |
[FYI] {master} deptrack: avoid few forks in configure (minor optimization) |
Date: |
Thu, 23 Feb 2012 22:38:01 +0100 |
* m4/depend.m4 (_AM_DEPENDENCIES): Use 'echo > file' instead of
'touch file' to ensure the creation of a dummy file. Adjust the
comment that explains why we can't merely use ': > file': the
problem this latter idiom tickles is present also with Solaris 10
/bin/sh, not merely with Solaris 8 /bin/sh.
---
m4/depend.m4 | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/m4/depend.m4 b/m4/depend.m4
index 9fbf438..1601c63 100644
--- a/m4/depend.m4
+++ b/m4/depend.m4
@@ -85,8 +85,8 @@ AC_CACHE_CHECK([dependency style of $depcc],
for i in 1 2 3 4 5 6; do
echo '#include "conftst'$i'.h"' >> sub/conftest.c
# Using ": > sub/conftst$i.h" creates only sub/conftst1.h with
- # Solaris 8's {/usr,}/bin/sh.
- touch sub/conftst$i.h
+ # Solaris 10 /bin/sh.
+ echo '/* dummy */' > sub/conftst$i.h
done
echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf
--
1.7.9
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