From 42bc49b89ae25b35f8edf21f539c51bccccb2b1e Mon Sep 17 00:00:00 2001
From: Lephenixnoir <sebastien.michelland@protonmail.com>
Date: Sun, 11 Apr 2021 20:27:25 +0200
Subject: [PATCH] cmake: use PkgConfig to find libpng

The FindPNG module fails catastrophically on Mac OS because it searches
for the library and header independently, and ends up pulling a
completely unrelated header from a random framework.
---
 CMakeLists.txt | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 468e647..ea9ce75 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -6,7 +6,7 @@ project(fxSDK VERSION 2.3.1 LANGUAGES C)
 option(FXLINK_DISABLE_UDISKS2 "Do not build the UDisks2-based features of fxlink")
 
 find_package(PkgConfig REQUIRED)
-find_package(PNG REQUIRED)
+pkg_check_modules(libpng REQUIRED libpng16 IMPORTED_TARGET)
 pkg_check_modules(libusb REQUIRED libusb-1.0 IMPORTED_TARGET)
 # pkg_check_modules(libudev libudev IMPORTED_TARGET)
 if(NOT FXLINK_DISABLE_UDISKS2)
@@ -23,7 +23,7 @@ add_compile_options(-Wall -Wextra -std=c11 -Og -g -D_GNU_SOURCE)
 add_executable(fxg1a fxg1a/dump.c fxg1a/edit.c fxg1a/file.c fxg1a/icon.c
   fxg1a/main.c fxg1a/util.c)
 target_include_directories(fxg1a PUBLIC fxg1a/)
-target_link_libraries(fxg1a PNG::PNG)
+target_link_libraries(fxg1a PkgConfig::libpng)
 
 # fxsdk
 add_custom_command(OUTPUT "${BIN}/fxsdk.sh"