cmake: temporarily disable apng capture on intel macs.

Author: adriweb

gui/qt/CMakeLists.txt

@@ -283,20 +283,24 @@ if(PkgConfig_FOUND)
     endif()
 endif()
 
-find_package(PNG QUIET)
-if(PNG_FOUND)
-    include(CheckSymbolExists)
-    set(CMAKE_REQUIRED_INCLUDES ${PNG_INCLUDE_DIRS})
-    check_symbol_exists(PNG_WRITE_APNG_SUPPORTED "png.h" HAVE_PROPER_APNG_LIB)
-    if(HAVE_PROPER_APNG_LIB)
-        set_property(TARGET CEmu PROPERTY AUTOMOC_MOC_OPTIONS "-DPNG_WRITE_APNG_SUPPORTED")
-        target_compile_definitions(CEmu PRIVATE "PNG_SUPPORT")
-        target_link_libraries(CEmu PRIVATE PNG::PNG)
+if(APPLE AND NOT (CMAKE_HOST_SYSTEM_PROCESSOR STREQUAL "arm64"))
+    message("For now, libpng-apng is disabled on intel macs... see issue #528. APNG capture will not be available")
+else()
+    find_package(PNG QUIET)
+    if(PNG_FOUND)
+        include(CheckSymbolExists)
+        set(CMAKE_REQUIRED_INCLUDES ${PNG_INCLUDE_DIRS})
+        check_symbol_exists(PNG_WRITE_APNG_SUPPORTED "png.h" HAVE_PROPER_APNG_LIB)
+        if(HAVE_PROPER_APNG_LIB)
+            set_property(TARGET CEmu PROPERTY AUTOMOC_MOC_OPTIONS "-DPNG_WRITE_APNG_SUPPORTED")
+            target_compile_definitions(CEmu PRIVATE "PNG_SUPPORT")
+            target_link_libraries(CEmu PRIVATE PNG::PNG)
+        else()
+            message(WARNING "The LibPNG found does not seem to support APNG. APNG capture will not be available")
+        endif()
     else()
-        message(WARNING "The LibPNG found does not seem to support APNG. APNG capture will not be available")
+        message(WARNING "No LibPNG found! APNG capture will not be available")
     endif()
-else()
-    message(WARNING "No LibPNG found! APNG capture will not be available")
 endif()
 
 target_link_libraries(CEmu PRIVATE