Add sdl_ttf recipe

recipes/sdl_ttf/01_redox.patch

@@ -0,0 +1,12 @@
+diff -rupNw source-original/config.sub source/config.sub
+--- source-original/config.sub	2012-01-19 07:30:05.000000000 +0100
++++ source/config.sub	2018-05-01 17:31:52.766229515 +0200
+@@ -1276,7 +1276,7 @@ case $os in
+ 	-gnu* | -bsd* | -mach* | -minix* | -genix* | -ultrix* | -irix* \
+ 	      | -*vms* | -sco* | -esix* | -isc* | -aix* | -cnk* | -sunos | -sunos[34]*\
+ 	      | -hpux* | -unos* | -osf* | -luna* | -dgux* | -solaris* | -sym* \
+-	      | -kopensolaris* \
++	      | -kopensolaris* | -redox* \
+ 	      | -amigaos* | -amigados* | -msdos* | -newsos* | -unicos* | -aof* \
+ 	      | -aos* | -aros* \
+ 	      | -nindy* | -vxsim* | -vxworks* | -ebmon* | -hms* | -mvs* \

recipes/sdl_ttf/recipe.sh

@@ -0,0 +1,43 @@
+VERSION=2.0.11
+TAR=https://www.libsdl.org/projects/SDL_ttf/release/SDL_ttf-$VERSION.tar.gz
+BUILD_DEPENDS=(sdl liborbital freetype libpng zlib)
+
+export CFLAGS="-I$PWD/sysroot/include/ -I$PWD/sysroot/include/freetype2/"
+export LDFLAGS="-L$PWD/sysroot/lib/"
+
+function recipe_version {
+    echo "$VERSION"
+    skip=1
+}
+
+function recipe_update {
+    echo "skipping update"
+    skip=1
+}
+
+function recipe_build {
+    sysroot="${PWD}/../sysroot"
+    export SDL_CONFIG="$sysroot/bin/sdl-config"
+    export FREETYPE_CONFIG="$sysroot/bin/freetype-config"
+
+    ./autogen.sh
+    ./configure --prefix=/ --host=${HOST} --disable-shared --disable-sdltest
+    make -j"$(nproc)"
+    skip=1
+}
+
+function recipe_test {
+    echo "skipping test"
+    skip=1
+}
+
+function recipe_clean {
+    make clean
+    skip=1
+}
+
+function recipe_stage {
+    dest="$(realpath $1)"
+    make DESTDIR="$dest" install
+    skip=1
+}