I’ve just tried my first ever compile, getting further than I thought before being stymied by my own ignorance. I need some advice please.
I want to compile a plug-in for the CLAWS-MAIL email application. (the plug-in does not appear in the claws-mail extra plug-ins package). Following the install instructions available with the source package, execution of the ./configure command produced the following error information:
checking for pkg-config… /usr/bin/pkg-config
checking pkg-config is at least version 0.9.0… yes
checking for CLAWS_MAIL… configure: error: Package requirements (claws-mail >= 3.4.0.65) were not met:
No package ‘claws-mail’ found
Consider adjusting the PKG_CONFIG_PATH environment variable if you
installed software in a non-standard prefix.
Alternatively, you may set the environment variables CLAWS_MAIL_CFLAGS
and CLAWS_MAIL_LIBS to avoid the need to call pkg-config.
See the pkg-config man page for more details.
I understand this to mean that no file named ‘claws-mail.pc’ could be found in the pkg-config folder in my /usr/lib folder - and indeed this is true.
I now (think) I understand how to set the environment variables which are quoted, so that the need for the .pc file is avoided. The problem I have is that I have no idea what values these 2 environment variables should be set to. I have read the pkg-config manual and there is no reference to them (for obvious reasons).
Where can I find a definition of their values?