@@ -305,8 +305,181 @@
 alias pw="pwnk -k ~/.cryptopassphrase.key"
 alias pws="pwnk -k ~/.cryptopassphrase-server.key"
 
 ixio() { curl -F 'f:1=<-' ix.io }
 0x0st() { curl -F'file=@-' https://0x0.st }
+
+cross() {
+	if [ $# = 0 ]; then
+		echo 'Usage: cross platform [architecture1] [architecture2]' \
+		     1>&2
+		return 1
+	fi
+
+	case "$1" in
+		3ds | nds)
+			if [ -z "$DEVKITPRO" ]; then
+				echo "Please set DEVKITPRO!" 1>&2
+				return 1
+			fi
+			if [ -z "$DEVKITARM" ]; then
+				echo "Please set DEVKITARM!" 1>&2
+				return 1
+			fi
+
+			export PATH="$DEVKITARM/bin:$PATH"
+			export cross_host="arm-none-eabi"
+			export objfw_configure_flags="--with-$1"
+			;;
+		amiga)
+			case "$2" in
+				m68k)
+					if [ -z "$amiga_gcc_path" ]; then
+						echo -n "Please set " 1>&2
+						echo "amiga_gcc_path!" 1>&2
+						return 1
+					fi
+
+					export PATH="$amiga_gcc_path/bin:$PATH"
+					export cross_host="m68k-amigaos"
+					;;
+				ppc)
+					if [ -z "$adtools_path" ]; then
+						echo -n "Please set " 1>&2
+						echo "adtools_path!" 1>&2
+						return 1
+					fi
+
+					export PATH="$adtools_path/bin:$PATH"
+					export cross_host="ppc-amigaos"
+					;;
+			esac
+
+			if [ $# != 2 -o -z "$cross_host" ]; then
+				echo "Usage: cross amiga m68k|ppc" 1>&2
+				return 1
+			fi
+			;;
+		ios | iossim)
+			if ! which xcrun &>/dev/null; then
+				echo -n "Can only cross-compile for iOS " 1>&2
+				echo "on a Mac with Xcode!" 1>&2
+				return 1
+			fi
+
+			case "$1" in
+				ios)
+					local sdk_type=iphoneos
+					local default_archs="arm64"
+					;;
+				iossim)
+					local sdk_type=iphonesimulator
+					local default_archs="x86_64"
+					;;
+			esac
+
+			local sdk="$(xcrun --show-sdk-path --sdk $sdk_type)"
+			local archs="${@:2}"
+
+			if [ ${(w)#archs} = 0 ]; then
+				archs="$default_archs"
+			fi
+
+			export CC="clang --sysroot $sdk"
+			export CPP="clang -E --sysroot $sdk"
+			export CXX="clang++ --sysroot $sdk"
+			export CXXPP="clang++ -E -=sysroot $sdk"
+
+			for arch in $=archs; do
+				export CC="$CC -arch $arch"
+				export CXX="$CXX -arch $arch"
+			done
+			export CPP="$CPP -arch $archs[(w)1]"
+			export CXXPP="$CXXPP -arch $archs[(w)1]"
+
+			export OBJC="$CC"
+			export OBJCPP="$CPP"
+			export OBJCXX="$CXX"
+			export OBJCPPXX="$CXXPP"
+			export IPHONEOS_DEPLOYMENT_TARGET="10.0"
+			export cross_host="$archs[(w)1]-apple-darwin"
+			;;
+		mingw)
+			case "$2" in
+				i686 | x86_64)
+					local pkg="mingw-w64-$2-gcc"
+					export cross_host="$2-w64-mingw32"
+					;;
+			esac
+
+			if [ $# != 2 -o -z "$cross_host" ]; then
+				echo "Usage: cross mingw i686|x86_64" 1>&2
+				return 1
+			fi
+
+			local prefix="$(pkg_info -qp $pkg 2>/dev/null |
+			                awk '/^@cwd/ { print $2; exit }')"
+			if [ -z "$prefix" ]; then
+				echo "Please install $pkg from pkgsrc!" 1>&2
+				return 1
+			fi
+
+			export PATH="$prefix/cross/$cross_host/bin:$PATH"
+			;;
+		morphos)
+			local pkg="ppc-morphos-gcc-9"
+			local prefix="$(pkg_info -qp $pkg 2>/dev/null |
+			                awk '/^@cwd/ { print $2; exit }')"
+			if [ -z "$prefix" ]; then
+				echo "Please install $pkg from pkgsrc!" 1>&2
+				return 1
+			fi
+
+			export PATH="$prefix/gg/bin:$PATH"
+			export CC="ppc-morphos-gcc-9"
+			export CXX="ppc-morphos-g++-9"
+			export OBJC="$CC"
+			export OBJCXX="$CXX"
+			export cross_host="ppc-morphos"
+			;;
+		switch)
+			if [ -z "$DEVKITPRO" ]; then
+				echo "Please set DEVKITPRO!"
+				return 1
+			fi
+			if [ -z $"DEVKITA64" ]; then
+				echo "Please set DEVKITA64!"
+				return 1
+			fi
+
+			export PATH="$DEVKITA64/bin:$PATH"
+			export cross_host="aarch64-none-elf"
+			export objfw_configure_flags="--with-$1"
+			;;
+		wii | wii-u)
+			if [ -z "$DEVKITPRO" ]; then
+				echo "Please set DEVKITPRO!"
+				return 1
+			fi
+			if [ -z "$DEVKITPPC" ]; then
+				echo "Please set DEVKITPPC!"
+				return 1
+			fi
+
+			export PATH="$DEVKITPPC/bin:$PATH"
+			export cross_host="powerpc-eabi"
+			export objfw_configure_flags="--with-$1"
+			;;
+		*)
+			echo "Unknown target: $1" 1>&2
+			return 1
+			;;
+	esac
+
+	export objfw_configure_flags=(
+		--host=$cross_host
+		$=objfw_configure_flags
+	)
+}
 
 unset fgrep grep grep_color ls ls_color ls_on_cd ls_on_init simple_prompt
 unset HISTFILE