initial commit-moved from vulkan_guide

third_party/fastgltf/cmake/compiler_flags.cmake

@@ -0,0 +1,31 @@
+macro(fastgltf_compiler_flags TARGET)
+    if (NOT ${TARGET} STREQUAL "" AND TARGET ${TARGET})
+        # Note that simdjson automatically figures out which SIMD intrinsics to use at runtime based on
+        # cpuid, meaning no architecture flags or other compile flags need to be passed.
+        # See https://github.com/simdjson/simdjson/blob/master/doc/implementation-selection.md.
+        if (MSVC)
+            target_compile_options(${TARGET} PRIVATE /EHsc /utf-8 $<$<CONFIG:RELEASE>:/O2 /Ob3 /Ot>)
+            if (MSVC_VERSION GREATER 1929)
+                target_compile_options(${TARGET} PRIVATE /external:W0 /external:anglebrackets)
+            endif()
+        elseif(CMAKE_CXX_COMPILER_ID STREQUAL "Clang" OR CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
+            target_compile_options(${TARGET} PRIVATE $<$<CONFIG:RELEASE>:-O3>)
+
+            # Issue with MinGW: https://github.com/simdjson/simdjson/issues/1963
+            target_compile_options(${TARGET} PUBLIC $<$<CONFIG:DEBUG>:-Og>)
+
+            # https://github.com/simdjson/simdjson/blob/master/doc/basics.md#performance-tips
+            target_compile_options(${TARGET} PRIVATE $<$<CONFIG:RELEASE>:-DNDEBUG>)
+        endif()
+    endif()
+endmacro()
+
+macro(fastgltf_enable_debug_inlining TARGET)
+    if (NOT ${TARGET} STREQUAL "" AND TARGET ${TARGET})
+        if (MSVC)
+            target_compile_options(${TARGET} PRIVATE $<$<CONFIG:DEBUG>:/Ob2>)
+        elseif(CMAKE_CXX_COMPILER_ID STREQUAL "Clang" OR CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
+            target_compile_options(${TARGET} PRIVATE $<$<CONFIG:DEBUG>:-finline-functions>)
+        endif()
+    endif()
+endmacro()