new package: crystal

[leap0x7b]

Fixes #3401

Signed-off-by: Leap of Azzam [email protected]

[xtkoba]

Note that the host build is done out of source tree regardless of the TERMUX_PKG_BUILD_IN_SRC flag:

termux-packages/scripts/build/termux_step_handle_hostbuild.sh

Lines 12 to 15 in 3407018

	rm -Rf "$TERMUX_PKG_HOSTBUILD_DIR"
	mkdir -p "$TERMUX_PKG_HOSTBUILD_DIR"
	cd "$TERMUX_PKG_HOSTBUILD_DIR"
	termux_step_host_build

If in-tree build is required for host build, the source tree needs to be copied:

find "$TERMUX_PKG_SRCDIR" -mindepth 1 -maxdepth 1 -exec cp -a \{\} ./ \;