Only use -O3 flag for intel compiler #154

	name: FortUTF macOS GFortran 13

	on: [push]

	concurrency:
	group: ${{ github.workflow }}-${{ github.ref }}
	cancel-in-progress: true

	jobs:
	build:
	name: 'macOS Latest'
	runs-on: 'macos-latest'

	steps:
	- uses: actions/checkout@v4
	- name: Setup cmake
	uses: jwlawson/actions-setup-cmake@v2
	with:
	cmake-version: '3.31.x'
	- name: Install GFortran macOS
	run: brew install gcc@13
	- name: Build Tests
	run: \|
	cmake -H. -Bbuild -DBUILD_TESTS=ON -DCMAKE_Fortran_COMPILER=$(which gfortran-12)
	cmake --build build
	- name: Run Tests
	run: \|
	./build/FortUTF_Tests
	if [ $? -eq 0 ]; then
	echo "Unit Tests completed succesfully"
	exit 0
	else
	echo "Unit Tests failed"
	exit 1
	fi
	- name: Run Test List
	run: \|
	./build/FortUTF_Tests TEST_FAIL_EQUAL_CHAR TEST_EQUAL_CHAR
	if [ $? -eq 0 ]; then
	echo "Unit Tests completed succesfully"
	exit 0
	else
	echo "Unit Tests failed"
	exit 1
	fi

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