When I try to compile apps from source, I frequently get apps that complain about dependencies even though I have the dependency.

As an example, running ./configure for om-synth complains "checking for gtkmm-2.4... Package gtkmm-2.4 was not found in the pkg-config search path."

It then goes on to say "Perhaps you should add the directory containing `gtkmm-2.4.pc' to the PKG_CONFIG_PATH environment variable".

I certainly have gtkmm-2.4, and the -devel package as well. I got the same complains for jack-audio-connection-kit, and liblo. In both cases I had installed from source and various ".pc" files were present in the source directories. Adding those to PKG_CONFIG_PATH got me past those errors, but I installed gtkmm-2.4 and the devel package for it by rpm managed by yum.

What exactly does the above error, asking for the '.pc' files mean, and how can I fix this problem?

I've had this same problem of asking for the directories with the .pc files before, and assume that there is something basic that I don't know. Could some please fill me in?

Thanks in anticipation,

Ross-c

hi,
check where those libraries are present on you system and then add that directory to /etc/ld.so.conf and then give ldconfig command. then check whether you are getting again same error or not?

check where the lib is, do an echo $PKG_CONFIG_PATH , copy the output and do an export PKG_CONFIG_PATH=(output)(the path to your lib).
In other words, just do what it says.