[wplug] configuring ccache

[Weber, Lawrence A]

The original 4.4.4 is still located in /usr/bin .  I directed the install of 4.2 to be in /usr/local/bin  When I change the symlink in /usr/bin/ccache to link to the gcc in /usr/bin it works but I am not sure ccache is then used.

From: wplug-bounces+lawrence.weber=ansaldo-sts.us at wplug.org [mailto:wplug-bounces+lawrence.weber=ansaldo-sts.us at wplug.org] On Behalf Of Tim Quinlan
Sent: Thursday, August 26, 2010 11:06 AM
To: General user list
Subject: Re: [wplug] configuring ccache


Sounds like you may have over written the original install of gcc.

Did you specify --prefix and --exec-prefix when you configured 4.2?
On Aug 26, 2010 10:34 AM, "Weber, Lawrence A" <Lawrence.Weber at ansaldo-sts.us<mailto:Lawrence.Weber at ansaldo-sts.us>> wrote:
I am using Fedora 12 and recently had the need to use an older version of gcc.  I was able to download, build and install the old version, 4.2.  I originally had 4.4.4 installed.

When I do a "which gcc" or "which cc", I find that the commands are handled through /usr/lib/ccache symbolic links.  In that directory both gcc and cc link to /usr/bin/ccache.  The installation of the old gcc changed something because now ccache is runs the old version not the newer 4.4.4.  How do I restore ccache to use 4.4.4?  I tried deleting the link and recreating it but since the link is to ccache this did not work.  I have temporarily changed to link to point to the 4.4.4 compiler but this is bypassing ccache.  I read through the ccache documentation but it is unclear how the execution of ccache runs a specific compiler.

Lawrence. A. Weber
Consulting Engineer

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