Improve generation of pkg-config files for static only libraries.

Previously pkg-config files generated by the pkgconfig modules for static libraries
with dependencies could only be used in a dependencies with `static: true`.

This was caused by the dependencies only appearing in Libs.private even
if they are needed in the default linking mode. But a user of a
dependency should not have to know if the default linking mode is static
or dynamic; A dependency('somelib') call should always pull in all
needed pieces into the build.

Now for meson build static libraries passed via `libraries` to the generate
method automatically promote dependencies to public.

1 files changed, 12 insertions, 0 deletions

diff --git a/docs/markdown/snippets/pkg-config-fix-static-only.md b/docs/markdown/snippets/pkg-config-fix-static-only.md
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+## Improved generation of pkg-config files for static only libraries.
+
+Previously pkg-config files generated by the pkgconfig modules for static libraries
+with dependencies could only be used in a dependencies with `static: true`.
+
+Now the generated file contains the needed dependencies libraries directly within
+`Requires` and `Libs` for build static libraries passed via the `libraries` keyword
+argument.
+
+Projects that install both a static and a shared version of a library should use
+the result of `both_libraries` to the pkg config file generator or use
+configure_file for more complicated setups.