|Subject:||Re: Use pipe and sed in configure.ac|
|Date:||Thu, 10 Feb 2011 23:27:32 +0800|
Thanks to peter and Eric. Yes, the problem is the square backect. It should be \([[^ ]]*\). After I put it in set -vx/set +vx block, I notice the command exactly executed was: php-config --configure-options | sed -n 's|.*--with-config-file-scan-dir=\(^ *\).*|\1|p' both backet were missing.
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