Makefile: Install the templated pkg-config file.

[Apteryks]

Otherwise, the 'prefix' variable would be left undefined:

$ pkg-config --cflags mpc
Variable 'prefix' not defined in '/gnu/store/...-profile/lib/pkgconfig/mpc.pc'

$ cat /gnu/store/...-profile/lib/pkgconfig/mpc.pc
libdir=${prefix}/lib
includedir=${prefix}/include
[...]

• Makefile (install): Install the templated pkg-config from the build directory.
  (all): Add the libs and $(DIST)/$(PROJ).pc targets.

[HalosGhost]

utACK. Seems pretty clear that the install target didn't get updated properly to handle the templated .pc file.

[HalosGhost]

Good catch! This patch ensures the installed .pc is the generated file, not the template.

It also ensures the libraries and .pc get built by-default which seems reasonable, if tangential.

[Apteryks]

Hello! About the tangential part: since the install target depends on 'all' and we want to install the generated .pc file, it seemed like easiest to ensure that by registering it in the 'all' target.

[HalosGhost]

Quite fair; I think the only thing that threw me was the addition of libs when those are guaranteed to be built by all anyway due to the dependencies from EXAMPLESEXE.

As a point-of-reference: it probably would have felt more clear what the goal was if those two dependencies had been added to install rather than changing all. But, it's also completely fair that all should really build all the things that can be built. So, my review doesn't change. 👍 from me.

[orangeduck]

Thanks all!