cmake: extend library pattern to work on GNU/Hurd as well

The existing "*-linux-gnu*" works on the Debian multiarch model for
Linux architectures; tweak it to be "*-gnu*" so it works also for Hurd
architectures.

This makes the cmake-based search of dependencies work on Debian
GNU/Hurd.

mesonbuild/dependencies/data/CMakePathInfo.txt

@@ -13,7 +13,7 @@ list(APPEND TMP_PATHS_LIST ${CMAKE_SYSTEM_APPBUNDLE_PATH})
 
 set(LIB_ARCH_LIST)
 if(CMAKE_LIBRARY_ARCHITECTURE_REGEX)
-  file(GLOB implicit_dirs RELATIVE /lib /lib/*-linux-gnu* )
+  file(GLOB implicit_dirs RELATIVE /lib /lib/*-gnu* )
   foreach(dir ${implicit_dirs})
     if("${dir}" MATCHES "${CMAKE_LIBRARY_ARCHITECTURE_REGEX}")
       list(APPEND LIB_ARCH_LIST "${dir}")