Add mednafen

recipes/mednafen/recipe.toml

+[source]
+tar = "https://mednafen.github.io/releases/files/mednafen-1.29.0.tar.xz"
+patches = [
+    "redox.patch",
+]
+
+[build]
+template = "custom"
+dependencies = [
+    #TODO: libflac
+    "libiconv",
+    "liborbital",
+    "llvm",
+    "mesa",
+    "sdl2",
+    "zlib",
+]
+script = """
+export SDL_LIBS="-lSDL2 -lorbital $("${TARGET}-pkg-config" --libs osmesa) -lstdc++"
+COOKBOOK_CONFIGURE_FLAGS+=(
+    --without-libflac
+)
+cookbook_configure
+"""

recipes/mednafen/redox.patch

+diff -ruwN source-old/include/mednafen/sound/SwiftResampler.cpp source/include/mednafen/sound/SwiftResampler.cpp
+--- source-old/include/mednafen/sound/SwiftResampler.cpp	2022-01-18 14:16:23.000000000 -0700
++++ source/include/mednafen/sound/SwiftResampler.cpp	2022-12-16 20:01:02.263159230 -0700
+@@ -608,6 +608,9 @@
+ 
+  if(hp_tc > 0)
+  {
++#ifndef M_E
++#define M_E 2.7182818284590452354
++#endif
+   double tdm = (pow(2.0 - pow(M_E, -1.0), 1.0 / (hp_tc * output_rate)) - 1.0);
+ 
+   //printf("%f\n", tdm);
+diff -ruwN source-old/src/sound/SwiftResampler.cpp source/src/sound/SwiftResampler.cpp
+--- source-old/src/sound/SwiftResampler.cpp	2022-01-18 14:16:23.000000000 -0700
++++ source/src/sound/SwiftResampler.cpp	2022-12-16 20:01:02.263159230 -0700
+@@ -608,6 +608,9 @@
+ 
+  if(hp_tc > 0)
+  {
++#ifndef M_E
++#define M_E 2.7182818284590452354
++#endif
+   double tdm = (pow(2.0 - pow(M_E, -1.0), 1.0 / (hp_tc * output_rate)) - 1.0);
+ 
+   //printf("%f\n", tdm);