meson: Use pkgconfig generator

[xclaesse]

It is much less error prone because Meson can detect dependencies automatically. As bonus Meson will also generate the opus-uninstalled.pc file.

[luzpaz]

Is there an ETA on this ?

[diizzyy]

It would indeed be nice if we could have this merged

[heitbaum]

I did a quick test on this and the .pc file is operationally the same as before.

diff -Nu opus.pc opus.pc.286
--- opus.pc     2024-03-14 13:24:42.326119773 +0000
+++ opus.pc.286 2024-03-14 13:30:32.419416360 +0000
@@ -1,16 +1,9 @@
-# Opus codec reference implementation pkg-config file
-
 prefix=/usr
-exec_prefix=${prefix}
-libdir=${prefix}/lib
 includedir=${prefix}/include
+libdir=${prefix}/lib
 
-Name: Opus
+Name: opus
 Description: Opus IETF audio codec (floating-point build)
-URL: https://opus-codec.org/
 Version: 1.4-git-a8e4ebb
-Requires:
-Conflicts:
-Libs: -L${libdir} -lopus
-Libs.private: -lm
+Libs: -L${libdir} -lopus -lm
 Cflags: -I${includedir}/opus

[jmvalin]

merged