sdcc: enable cross and add nonfree build option.

- Enabling cross is done by disabling building the device libraries
during packaging and copying them over from the host's version of the
package.
- Some PIC headers and files are nonfree, so they shouldn't be included
in the free version.
- Add gc-devel for better memory behavior.

[ci skip]

srcpkgs/sdcc/template

@@ -1,10 +1,11 @@
 # Template file for 'sdcc'
 pkgname=sdcc
 version=4.0.0
-revision=1
+revision=2
 build_style=gnu-configure
+configure_args="--enable-libgc $(vopt_enable nonfree non-free)"
 hostmakedepends="automake flex bison gputils texinfo"
-makedepends="boost-devel zlib-devel"
+makedepends="boost-devel zlib-devel gc-devel"
 short_desc="Retargettable ANSI C compiler"
 maintainer="Érico Nogueira <ericonr@disroot.org>"
 license="GPL-2.0-or-later"
@@ -13,8 +14,20 @@ distfiles="${SOURCEFORGE_SITE}/sdcc/${pkgname}-src-${version}.tar.bz2"
 checksum=489180806fc20a3911ba4cf5ccaf1875b68910d7aed3f401bbd0695b0bef4e10
 python_version=3
 nostrip=yes
-nocross=yes
+
+build_options="nonfree"
 
 if [ "$XBPS_TARGET_ENDIAN" = "be" ]; then
 	broken="code generator internal error"
 fi
+
+if [ "$CROSS_BUILD" ]; then
+	configure_args+=" --disable-device-lib"
+	hostmakedepends+=" sdcc"
+fi
+
+post_install() {
+	if [ "$CROSS_BUILD" ]; then
+		vcopy /usr/share/sdcc usr/share
+	fi
+}