tree 54a33fc4700e21206c745368baae24230dbfde4c
parent aa6b2180bf9926e62641871908ae059c19ddb3a3
author Kai Pastor <dg0yt@darc.de> 1723054301 +0200
committer Kai Pastor <dg0yt@darc.de> 1723054303 +0200

Modules: Guard calls to pkg_check_modules

Before calling pkg_check_modules, modules must check PKG_CONFIG_FOUND.
When FindPkgConfig.cmake is loaded, pkg_check_modules is always defined
regardless of pkg-config being present. However, the whole module might
be disabled on user request with CMAKE_DISABLE_FIND_PACKAGE_PkgConfig.
This must not break Find modules which just look for a hint or similar.