TERMUX_PKG_HOMEPAGE=http://picolisp.com
TERMUX_PKG_DESCRIPTION="Lisp interpreter and application server framework"
TERMUX_PKG_VERSION=16.2.7
TERMUX_PKG_SRCURL=http://software-lab.de/picoLisp.tgz
TERMUX_PKG_FOLDERNAME=picoLisp
TERMUX_PKG_BUILD_IN_SRC=true

termux_step_pre_configure() {
	# Validate that we have the right version:
	grep -q '16 2 7' src64/version.l

	TERMUX_PKG_SRCDIR=$TERMUX_PKG_SRCDIR/src
	if [ $TERMUX_ARCH_BITS = 64 ]; then
		TERMUX_PKG_SRCDIR+="64"
		if [ $TERMUX_ARCH = "aarch64" ]; then
			export TERMUX_PKG_EXTRA_MAKE_ARGS=arm64.linux
		elif [ $TERMUX_ARCH = "x86_64" ]; then
			export TERMUX_PKG_EXTRA_MAKE_ARGS=x86-64.linux
		else
			echo "Error: Unsupported arch: $TERMUX_ARCH"
			exit 1
		fi
	fi
	TERMUX_PKG_BUILDDIR=$TERMUX_PKG_SRCDIR
	CFLAGS+=" -c $LDFLAGS $CPPFLAGS"
}

termux_step_make_install () {
	if [ $TERMUX_ARCH_BITS = "64" ]; then
		cd $TERMUX_PKG_SRCDIR/
		$CC -pie -o ../bin/picolisp -rdynamic ${TERMUX_PKG_EXTRA_MAKE_ARGS}.base.s -lc -lm -ldl
		chmod +x ../bin/picolisp
		$CC -pie -o ../lib/ext -shared -export-dynamic ${TERMUX_PKG_EXTRA_MAKE_ARGS}.ext.s
		$CC --pie -o ../lib/ht -shared -export-dynamic ${TERMUX_PKG_EXTRA_MAKE_ARGS}.ht.s
	fi

	mkdir -p $TERMUX_PREFIX/share/man/man1
	cp $TERMUX_PKG_SRCDIR/../man/man1/{pil,picolisp}.1 $TERMUX_PREFIX/share/man/man1/

	rm -Rf $TERMUX_PREFIX/lib/picolisp
	mkdir -p $TERMUX_PREFIX/lib/picolisp

	cp -Rf $TERMUX_PKG_SRCDIR/../* $TERMUX_PREFIX/lib/picolisp/
	rm -Rf $TERMUX_PREFIX/lib/picolisp/{src,src64,man,java,ersatz}

	# Replace first line "#!/usr/bin/picolisp /usr/lib/picolisp/lib.l":
	sed -i "1 s|^.*$|#!$TERMUX_PREFIX/bin/picolisp $TERMUX_PREFIX/lib/picolisp/lib.l|g" $TERMUX_PREFIX/lib/picolisp/bin/pil

	( cd $TERMUX_PREFIX/bin && ln -f -s ../lib/picolisp/bin/picolisp picolisp && ln -f -s ../lib/picolisp/bin/pil pil )
}