Understanding pkg-config & PKG_CONFIG_PATH when compiling UFRaw

Rizla · 01-26-2014, 11:27 AM

Hi,

I'm trying to compile UFRaw.
I've already compiled both gtk+2.0 and exiv2 into /usr/local/lib
pkg-config has both gtk+-2.0.pc and exiv2.pc in /usr/local/lib/pkgconfig

When I run ./configure with no PKG_CONFIG_PATH envar set, the script finds gtk libs, but not exiv2

If I set PKG_CONFIG_PATH to be /usr/local/lib/pkgconfig the configure script fails to find gtk+, but does find exiv2.

In each case (with or without PKG_CONFIG_PATH set) I can get the configure script to find the missing gtk or exiv by defining GTK_LIBS/GTK_CFLAGS or EXIV2_LIBS/EXIV2_CFLAGS from the data defined in the .pc files in /usr/local/lib/pkgconfig/.

To note, the following only return values if the PKG_CONFIG_PATH is set to /usr/local/lib/pkgconfig
pkg-config --modversion gtk+-2.0
pkg-config --modversion exiv2

I would have assumed that the configure script would find gtk with the PKG_CONFIG_PATH envar set as it does find exiv2 in the same location. I've checked for other pc files and there's nothing else for gtk ourside of /usr/local/

This is on Amazon Linux 64bit

Any help with why this is happening would be great.

Thanks,

John VV · 01-29-2014, 10:04 PM

Quote:

Amazon Linux 64bit

?????????????

a guess
it is based on rhel

as such /usr/local is NOT in the system path
rhel based systems do not use that location by default

if you are NOT using "--prefix=/usr" in the configure line
then the DEBIAN default location of /usr/local will be used

and cause all kinds of problems

rebuild the software so that is installs to /usr ( and all the prerequisites )

or add a rather LONG string to the system variables

well many strings really

PATH
LD_LIBRARY_PATH
PKG_CONFIG_PATH

--- an example and might not work on your system
edit the file"/etc/profile" add these ( or create "/etc/profile.local" or whatever the WARNING in /etc/profile says to use)

/etc/profile.local

Code:

PATH=$PATH:/usr/local

LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/lib64:/usr/lib


PKG_CONFIG_PATH=$PKG_CONFIG_PATH:/usr/local/lib64/pkgconfg:/usr/libpkgconfg

export PATH LD_LIBRARY_PATH PKG_CONFIG_PATH

PS.
however you REALLY should be using your package manager and installing the ufraw BUILT FOR YOUR INSTALL

Rizla · 01-30-2014, 05:25 AM

Thanks, thought it would be something along these line.
I would have loved to use the package manager, but there is no package for UFRaw available.

Thanks again .