switch to using fmt because gcc sucks

CMakePresets.json

@@ -165,6 +165,7 @@
             "name": "nix-x64-release",
             "configurePreset": "nix-x64-release",
             "description": "Build for *nix x64 Release",
+            "jobs": 4,
             "verbose": true
         }
     ],

vcpkg.json

@@ -1,7 +1,8 @@
 {
   "dependencies": [
     "catch2",
+    "cxxopts",
     "trompeloeil",
-    "cxxopts"
+    "fmt"
   ]
 }

vectgif/CMakeLists.txt

@@ -1,4 +1,5 @@
 find_package(cxxopts CONFIG REQUIRED)
+find_package(fmt CONFIG REQUIRED)
 
 add_executable(vectgif main.cpp)
 
@@ -12,3 +13,4 @@ endif()
 
 target_link_libraries(vectgif PRIVATE ${LIBRETRO_SRC})
 target_link_libraries(vectgif PRIVATE cxxopts::cxxopts)
+target_link_libraries(vectgif PRIVATE fmt::fmt)

vectgif/main.cpp

@@ -5,8 +5,9 @@
 #include <iostream>
 #include <fstream>
 #include <string_view>
-#include <format>
 #include <optional>
+#include <fmt/core.h>
+#include <fmt/ostream.h>
 #include <vectrexia.h>
 #include "gif.h"
 #include <cxxopts.hpp>
@@ -47,22 +48,22 @@ int main(int argc, char *argv[])
     if (result.count("gif") && !result["gif"].as<std::string>().empty()) {
         giffilename = result["gif"].as<std::string>();
     } else {
-        giffilename = std::format("{}.gif", rom_filename);
+        giffilename = fmt::format("{}.gif", rom_filename);
     }
 
     // Load the ROM file
     std::ifstream romfile(rom_filename, std::ios::binary);
     if (!romfile) {
-        std::cerr << "[ROM]: Failed to open ROM file " << rom_filename << "\n";
+        std::cerr << fmt::format("[ROM]: Failed to open ROM file {}\n", rom_filename);
         return 1;
     }
 
-    std::cout << std::format("[ROM]: loading ROM \"{}\"\n", rom_filename);
+    std::cout << fmt::format("[ROM]: loading ROM \"{}\"\n", rom_filename);
     romfile.read(reinterpret_cast<char*>(rombuffer.data()), ROM_SIZE);
     auto r = static_cast<size_t>(romfile.gcount());
     romfile.close();
 
-    std::cout << std::format("[ROM]: size = {}\n", r);
+    std::cout << fmt::format("[ROM]: size = {}\n", r);
 
     if (!vectrex->LoadCartridge(rombuffer.data(), r)) {
         std::cerr << "Failed to load the ROM file\n";
@@ -92,7 +93,7 @@ int main(int argc, char *argv[])
         }
         GifWriteFrame(&gw, gif_buffer.data(), FRAME_WIDTH, FRAME_HEIGHT, 2);
         if (frame % 100 == 0) {
-            std::cout << std::format("[VECTREX] frame = {}\n", frame);
+            std::cout << fmt::format("[VECTREX] frame = {}\n", frame);
         }
     }