find_package(PolyHook_2) fails because polyhook_2-config.cmake is not found on MinGW on Linux

[nm004]

Hi @stevemk14ebr.

I am going to use PolyHook_2_0 for my project, but find_package(PolyHook_2 CONFIG REQUIRED) does not work when building my project on Linux. Although, find_package worked when I renamed PolyHook_2-config.cmake to PolyHook_2Config.cmake.

According to the official documentation, <PackageName>-config.cmake (PolyHook_2-config.cmake in this case) is not expected:

Config mode In this mode, CMake searches for a file called <lowercasePackageName>-config.cmake or <PackageName>Config.cmake. It will also look for <lowercasePackageName>-config-version.cmake or <PackageName>ConfigVersion.cmake if version details were specified (see Config Mode Version Selection for an explanation of how these separate version files are used).

I appreciate your great work.

[stevemk14ebr]

Can you confirm if it works with the package name lowercased, like polyhook_2-config.cmake

[nm004]

@stevemk14ebr Thank you for your reply.

Yes, that worked too.

[nm004]

My patch is like this:

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 6f072d3..bfbe0d3 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,6 +1,7 @@
 cmake_minimum_required(VERSION 3.15)

 project(PolyHook_2)
+string(TOLOWER ${PROJECT_NAME} LOWERCASE_PROJECT_NAME)
 include(CMakePackageConfigHelpers)

 if(WIN32)
@@ -374,14 +375,14 @@ endif()

 configure_package_config_file(
                "${PROJECT_NAME}-config.cmake.in"
-               "${PROJECT_NAME}-config.cmake"
+               "${LOWERCASE_PROJECT_NAME}-config.cmake"
        INSTALL_DESTINATION
         "lib/${PROJECT_NAME}"
 )

 install(
     FILES
-        "${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}-config.cmake"
+        "${CMAKE_CURRENT_BINARY_DIR}/${LOWERCASE_PROJECT_NAME}-config.cmake"
     DESTINATION
         "lib/${PROJECT_NAME}"
 )