glib: Fix libdir for PkgConfigDeps

[jwillikers]

Specify library name and version: glib/*

Required to update gstreamer to use PkgConfigDeps: #13400.

Related issue is here: conan-io/conan#12279.

---

• I've read the guidelines for contributing.
• I've followed the PEP8 style guides for Python code in the recipes.
• I've used the latest Conan client version.
• I've tried at least one configuration locally with the conan-center hook activated.

[ghost]

I detected other pull requests that are modifying glib/all recipe:

• glib: several fixes & improvements #13440
• glib: Fix test package to allow cross-compilation #13347
• glib: conan v2 support #12221

This message is automatically generated by https://github.com/ericLemanissier/conan-center-conflicting-prs so don't hesitate to report issues/improvements there.

[SpaceIm]

Duplicate of #13440. Anyway a fix to PkgConfigDeps would require a test of PkgConfigDeps, and you will hit the same issue than me: #13440 (comment)

[conan-center-bot]

All green in build 1 (9ec8b654283b28967169ca51e880ede0b617c7c6):

• glib/2.68.3@:
  All packages built successfully! (All logs)

• glib/2.69.3@:
  All packages built successfully! (All logs)

• glib/2.72.1@:
  All packages built successfully! (All logs)

• glib/2.71.3@:
  All packages built successfully! (All logs)

• glib/2.70.4@:
  All packages built successfully! (All logs)

• glib/2.73.0@:
  All packages built successfully! (All logs)

• glib/2.74.0@:
  All packages built successfully! (All logs)

• glib/2.73.1@:
  All packages built successfully! (All logs)

• glib/2.73.2@:
  All packages built successfully! (All logs)

• glib/2.73.3@:
  All packages built successfully! (All logs)

[github-actions]

Hooks produced the following warnings for commit 9ec8b65

glib/2.68.3

post_package(): WARN: [MISSING SYSTEM LIBS (KB-H043)] Library './lib/libglib-2.0.so' links to system library 'm' but it is not in cpp_info.system_libs.

[planetmarshall]

This does not appear to be fixed? glib-2.0.pc contains:

prefix=/home/andrew/.conan/data/glib/2.73.3/_/_/package/eb34e48f59e3766360e3256bde88ef47a36ecfe0
libdir1=${prefix}/lib
includedir1=${prefix}/include
includedir2=${prefix}/include/glib-2.0
includedir3=${prefix}/lib/glib-2.0/include
# Custom PC content
bindir=${prefix}/bin
glib_genmarshal=${bindir}/glib-genmarshal
gobject_query=${bindir}/gobject-query
glib_mkenums=${bindir}/glib-mkenums

Name: glib-2.0
Description: Conan component: glib-glib-2.0
Version: 2.73.3
Libs: -L"${libdir1}" -lglib-2.0 -lpthread 
Cflags: -I"${includedir1}" -I"${includedir2}" -I"${includedir3}" 
Requires: libpcre2

libdir and includedir are missing, which are required by downstream recipes.

[SpaceIm]

libdir & includedir are an internal detail of a pkgconfig file. What really matters is Libs, Cflags etc. If you really want libdir & includedir variables, it would require a PR on conan client side.

[jwillikers]

@planetmarshall @SpaceIm is right, fixes specific to the GLIB recipe would just be a temporary band-aid. Better to fix the issue in Conan for all such scenarios. I submitted the issue conan-io/conan#12279 for this some time ago.