cmake: add missing <stdlib.h> for exit to TestForHighBitCharacters #235

	name: CI Windows Mingw

	on:
	push:
	branches: [master, GD-*]
	pull_request:
	branches: [master, GD-*]

	workflow_dispatch:

	env:
	# Customize the CMake build type here (Release, Debug, RelWithDebInfo, etc.)
	BUILD_TYPE: RELWITHDEBINFO

	jobs:


	win-build:
	runs-on: windows-latest
	strategy:
	fail-fast: false
	matrix:
	include:
	- { icon: '⬛', sys: MINGW32 }
	- { icon: '🟦', sys: MINGW64 }
	- { icon: '🟨', sys: UCRT64 } # Experimental!
	- { icon: '🟧', sys: CLANG64 } # Experimental!
	name: 🚧${{ matrix.icon }}-${{ matrix.sys }}
	defaults:
	run:
	shell: msys2 {0}
	steps:

	- name: '⚙️ git config'
	run: git config --global core.autocrlf input
	shell: bash

	- name: '🧰 Checkout'
	uses: actions/checkout@v4
	with:
	fetch-depth: 0

	- name: '${{ matrix.icon }} Setup MSYS2'
	uses: msys2/setup-msys2@v2
	with:
	msystem: ${{ matrix.sys }}
	update: true
	install: >
	git
	base-devel
	tree
	pacboy: >
	toolchain:p
	libpng:p
	libjpeg-turbo:p
	freetype:p
	libtiff:p
	libwebp:p
	libheif:p
	libraqm:p
	libavif:p
	xpm-nox:p
	cmake:p
	ninja:p

	- name: '🚧 Cmake Configure'
	run: \|
	cmake -DCMAKE_BUILD_TYPE=${{env.BUILD_TYPE}} -DENABLE_PNG=1 -DENABLE_FREETYPE=1 -DENABLE_XPM=1 -DENABLE_JPEG=1 -DENABLE_WEBP=1 -DENABLE_TIFF=1 -DENABLE_GD_FORMATS=1 -DENABLE_HEIF=1 -DENABLE_RAQM=1 -DENABLE_ICONV=1 -DENABLE_CPP=1 -DBUILD_TEST=1 -B.

	- name: Build
	run: cmake --build .

	- name: Run tests
	working-directory: ${{github.workspace}}
	run: \|
	mkdir tmp
	export TMP="$PWD/tmp"
	export CTEST_OUTPUT_ON_FAILURE=1
	ctest

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