Add a workaround for zlib library naming on Windows

dimula73 · amyspark · commit d53330ba5ef1 · 2023-02-02T11:13:33.000-03:00
See upstream bug: madler/zlib#652 Without this workaround packagies using zlib via pkg-config won't link (that is, raqm and harfbuzz)
diff --git a/3rdparty/ext_zlib/CMakeLists.txt b/3rdparty/ext_zlib/CMakeLists.txt
@@ -10,6 +10,19 @@ ExternalProject_Add(
 
     UPDATE_COMMAND ""
 )
+
+if(WIN32 AND MINGW)
+    # Workaround for zlib's library naming bug:
+    # https://github.com/madler/zlib/issues/652
+
+    ExternalProject_Add_Step(
+        ext_zlib
+        post_install
+        COMMAND ${CMAKE_COMMAND} -E copy ${PREFIX_ext_zlib}/lib/libzlib.dll.a ${PREFIX_ext_zlib}/lib/libz.dll.a
+        DEPENDEES install
+    )
+endif()
+
 else()
 ExternalProject_Add(
     ext_zlib
