Only prepend $prefix for relative paths #18

	name: ubuntu_test_installed_version.yml


	on:
	push:
	branches:
	- master
	- main
	pull_request:
	branches:
	- master
	- main

	env:
	CTEST_OUTPUT_ON_FAILURE: 1
	CPM_SOURCE_CACHE: ${{ github.workspace }}/cpm_modules

	jobs:
	build:
	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v4

	- uses: actions/cache@v4
	with:
	path: "**/cpm_modules"
	key: ${{ github.workflow }}-cpm-modules-${{ hashFiles('/CMakeLists.txt', '/*.cmake') }}

	- name: install library
	run: \|
	cmake -S. -Bbuild -DCMAKE_BUILD_TYPE=Release --log-level=DEBUG -DCMAKE_INSTALL_PREFIX=./install_dir
	cmake --build ./build -j$(nproc)
	cmake --install ./build --prefix ./install_dir
	rm -rf build

	- name: configure with installed version via cmake
	run: CMAKE_PREFIX_PATH="./install_dir" cmake -S. -Bbuild2 -DMAGIC_ENUM_OPT_TEST_INSTALLED_VERSION=1 --log-level=DEBUG

	- name: build with installed version via cmake
	run: cmake --build build2 --config Debug -j$(nproc) --verbose

	- name: test
	run: \|
	cd build2
	ctest --build-config Debug -j$(nproc)

	- name: clear
	run: rm -rf build2

	- name: configure with installed version via pkgconfig
	run: CMAKE_PREFIX_PATH="./install_dir" cmake -S. -Bbuild3 -DMAGIC_ENUM_OPT_TEST_INSTALLED_VERSION_PKGCONFIG=1 -DPKG_CONFIG_USE_CMAKE_PREFIX_PATH=1 --log-level=DEBUG

	- name: build with installed version via pkgconfig
	run: cmake --build build3 --config Debug -j$(nproc) --verbose

	- name: test
	run: \|
	cd build3
	ctest --build-config Debug -j$(nproc)

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