gtk missing and broken pkgconfig files

[rukai]

Describe the bug
The directory lib/pkgconfig is supposed to contain pkgconfig files for gtk, however some of them are missing.
I was instructed they were required here gtk-rs/gtk#1032

Environment

• OS: Windows

To Reproduce

git clone https://github.com/Microsoft/vcpkg
cd vcpkg
.\bootstrap-vcpkg.bat
vcpkg install gtk:x64-windows

Expected behavior
The command pkg-config --libs gtk+-3.0 should succeed

PS C:\Users\rukai\Projects\vcpkg\installed\x64-windows\lib\pkgconfig> ls


    Directory: C:\Users\rukai\Projects\vcpkg\installed\x64-windows\lib\pkgconfig


Mode                 LastWriteTime         Length Name
----                 -------------         ------ ----
-a----         5/07/2020   3:52 PM            323 epoxy.pc
-a----         5/07/2020   3:47 PM            425 gio-2.0.pc
-a----         5/07/2020   3:47 PM            330 gio-windows-2.0.pc
-a----         5/07/2020   3:47 PM            387 glib-2.0.pc
-a----         5/07/2020   3:47 PM            278 gmodule-2.0.pc
-a----         5/07/2020   3:47 PM            278 gmodule-export-2.0.pc
-a----         5/07/2020   3:47 PM            277 gmodule-no-export-2.0.pc
-a----         5/07/2020   3:47 PM            270 gobject-2.0.pc
-a----         5/07/2020   3:47 PM            232 gthread-2.0.pc
-a----         5/07/2020   3:46 PM            330 libpcre.pc
-a----         5/07/2020   3:46 PM            335 libpcre16.pc
-a----         5/07/2020   3:46 PM            335 libpcre32.pc
-a----         5/07/2020   3:46 PM            275 libpcrecpp.pc
-a----         5/07/2020   3:46 PM            318 libpcreposix.pc


PS C:\Users\rukai\Projects\vcpkg\installed\x64-windows\lib\pkgconfig> pkg-config --libs gtk+-3.0
Package gtk+-3.0 was not found in the pkg-config search path.
Perhaps you should add the directory containing `gtk+-3.0.pc'
to the PKG_CONFIG_PATH environment variable
No package 'gtk+-3.0' found
PS C:\Users\rukai\Projects\vcpkg\installed\x64-windows\lib\pkgconfig> pkg-config --libs glib-2.0
-LC:/Users/rukai/Projects/vcpkg/installed/x64-windows/lib -lglib-2.0
PS C:\Users\rukai\Projects\vcpkg\installed\x64-windows\lib\pkgconfig>

problem 2
We also just noticed that the .pc files that do exist are actually broken due to having an empty version.
e.g. glib-2.0.pc:

prefix=${pcfiledir}/../..
exec_prefix=${prefix}
libdir=${prefix}/lib
includedir=${prefix}/include

glib_genmarshal=glib-genmarshal
gobject_query=gobject-query
glib_mkenums=glib-mkenums

Name: GLib
Description: C Utility Library
Version: 
Requires.private: 
Libs: -L${libdir} -lglib-2.0 
Libs.private:       
Cflags: -I${includedir}/glib-2.0 -I${libdir}/glib-2.0/include 

[MVoz]

env PKG_CONFIG_PATH ?

echo %PKG_CONFIG_PATH%

set PKG_CONFIG_PATH=...

[rukai]

PS C:\Users\rukai> echo $env:PKG_CONFIG_PATH
C:\Users\rukai\Projects\vcpkg\installed\x64-windows\lib\pkgconfig

[MVoz]

ls C:\Users\rukai\Projects\vcpkg\installed\x64-windows\lib\pkgconfig\gtk+-3.0.pc
?

everything is clear, there is no configuration file

needs to be edited port file

[rukai]

We also just noticed that the .pc files that do exist are actually broken due to having an empty version.
e.g. glib-2.0.pc:

prefix=${pcfiledir}/../..
exec_prefix=${prefix}
libdir=${prefix}/lib
includedir=${prefix}/include

glib_genmarshal=glib-genmarshal
gobject_query=gobject-query
glib_mkenums=glib-mkenums

Name: GLib
Description: C Utility Library
Version: 
Requires.private: 
Libs: -L${libdir} -lglib-2.0 
Libs.private:       
Cflags: -I${includedir}/glib-2.0 -I${libdir}/glib-2.0/include 

[PhoebeHui]

Thanks for reporting this issue! I will take a look.

[PhoebeHui]

@rukai, I have summited PR #12326 to fix this issue, would you like to test if it works for you?

[JackBoosY]

Duplicated to #7641.