glib2: glib-2.0.pc Cflags needs -I${includedir}

[shochat@…]

This problem was encountered doing a manual build of pan-0.103 against the glib-2.0 brought in by DarwinPorts. The error was:

In file included from e-util.cc:32:
/opt/local/include/glib-2.0/glib/gi18n.h:23:21: error: libintl.h: No such file or directory

The problem was that in the compile command that led to this error, there was no -I/opt/local/include (which is where libintl.h is), causing the include in gi18n.h to fail. This is apparently because the Cflags line in glib-2.0.pc does not have -I${includedir}.

[rhwood@…]

Assigning to maintainer.

[mij@…]

Committed, thanks!

[ryandesign (Ryan Carsten Schmidt)]

The developers of ​Qt have declared that it is ​broken for us to be making this change to glib2's pkg-config file, so I plan to revert it; see #44395.