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Old 06-03-2008, 06:13 AM   #1
Registered: Apr 2008
Distribution: MontaVista Linux Version 4.0.1, Professional Edition
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pkg-config-0.22 not being picked up..

I am trying to install glib. I am told:
error: pkg-config too old version 0.16 or better required
so I downloaded pkg-config-0.22 to a directory on my machine (opt folder) and exracted it.

I then installed pkg-config-0.22, and ran make check and all is ok.

Now when I try to install glib again I still get the same message:
error: pkg-config too old version 0.16 or better required

I figure that the new version of pkg-config-0.22 is not getting picked up.
If I do echo $PKG_CONFIG_PATH it gives me:
/usr/lib/pkgconfig is this not the correct path?

Would the newer pkg-config-0.22 files have been installed somewhere else.

How can I fix this problem?

Thanks for your help.
Old 06-03-2008, 07:24 AM   #2
Registered: Jan 2008
Location: Toronto, Canada
Distribution: Slackware, CentOS
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Welcome to the source-building nightmare that is sometimes our world...

The answer to your question, "/usr/lib/pkgconfig is this not the correct path?" is a very consultantesque maybe (or, even better, "It depends...")...

What were the configure options you used on the package? Did you just do the old ./configure and then make, make install, make check as you indicated above? Or was there more to it than that? Did you specify a --prefix= after the ./configure?

Old 06-03-2008, 08:05 AM   #3
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The answer to your question is yes it is the correct path. But, you're looking at the wrong env variable.

PKG_CONFIG_PATH is the list of directories containing the metadata (*.pc) files, not the pkg-config binary itself. You installed pkg-config in the /opt or /usr/local hierarchy (can't tell from what you posted) and, I suspect, your old version is installed in the /usr hierarchy. Since it is likely that /usr/bin precedes /usr/local/bin/ or /opt/bin in your PATH variable, the configure script picks up the pkg-config binary in /usr/bin. As this is your old version, configure complains.

There are several options to deal with the problem. First and best, use your distro's package manager to upgrade pkg-config rather than install from source. For that matter use your package manager to install glib. Second, put /usr/local/bin or /opt/bin before /usr/bin in your PATH variable. Third, see if there is an option you can pass to the glib configure script to point to the version of pkg-config you want to use. Fourth, rebuild pkg-config-0.22 and pass --prefix=/usr to the configure script. This will overwrite your 0.16 binary with the 0.22 binary.

BTW, executing make check AFTER you install the package isn't much help. What if the test suite had failed? Now you have a broken package installed on your system. make check should be executed after make and BEFORE make install.
Old 06-03-2008, 09:58 AM   #4
Registered: Apr 2008
Distribution: MontaVista Linux Version 4.0.1, Professional Edition
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Original Poster
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Thank you guys you have been very helpful indeed.
I used --prefix=/usr like weibulguy suggests and now I have the correct 0.22 binary. Thanks also for the long detailed description of things.




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