Build: Ensure exceptions are off for fmt

CMakeLists.txt

@@ -179,6 +179,7 @@ else()
   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-exceptions -fno-rtti")
 endif()
 
+
 # Write binaries to a seperate directory.
 if(WIN32)
   set(CMAKE_RUNTIME_OUTPUT_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}/bin/${CPU_ARCH}")
@@ -205,6 +206,9 @@ if(BUILD_TESTS)
   enable_testing()
 endif()
 
+# Prevent fmt from being built with exceptions, or being thrown at call sites.
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DFMT_EXCEPTIONS=0")
+
 # Use C++17 for building dependencies (some aren't C++20-aware, e.g. reshadefx).
 set(CMAKE_CXX_STANDARD 17)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)

dep/fmt/fmt.vcxproj

@@ -28,6 +28,7 @@
     <ClCompile>
       <WarningLevel>TurnOffAllWarnings</WarningLevel>
       <AdditionalIncludeDirectories>$(SolutionDir)dep\fmt\include;$(ProjectDir)include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>FMT_EXCEPTIONS=0;%(PreprocessorDefinitions)</PreprocessorDefinitions>
     </ClCompile>
   </ItemDefinitionGroup>
   <Import Project="..\msvc\vsprops\Targets.props" />

src/common/common.props

@@ -3,6 +3,7 @@
   <ItemDefinitionGroup>
     <ClCompile>
       <AdditionalIncludeDirectories>$(SolutionDir)src;%(AdditionalIncludeDirectories);$(SolutionDir)dep\fast_float\include;$(SolutionDir)dep\fmt\include;$(SolutionDir)dep\zlib\include;$(SolutionDir)dep\minizip\include;$(SolutionDir)dep\stb\include</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>%(PreprocessorDefinitions);FMT_EXCEPTIONS=0</PreprocessorDefinitions>
       <LanguageStandard>stdcpp20</LanguageStandard>
     </ClCompile>
   </ItemDefinitionGroup>