binutils-cross: enable zstd support

Since NDK r27, debug sections of libraries from the bundled sysroot are
compressed with zstd. It is necessary to enable the zstd support for ld.bfd.

packages/binutils-libs/build.sh

@@ -23,6 +23,8 @@ TERMUX_PKG_NO_STATICSPLIT=true
 TERMUX_PKG_GROUPS="base-devel"
 
 # For binutils-cross:
+# Since NDK r27, debug sections of libraries from the bundled sysroot are
+# compressed with zstd. It is necessary to enable the zstd support for ld.bfd.
 TERMUX_PKG_HOSTBUILD=true
 TERMUX_PKG_EXTRA_HOSTBUILD_CONFIGURE_ARGS="
 --prefix=$TERMUX_PREFIX/opt/binutils/cross
@@ -31,9 +33,16 @@ TERMUX_PKG_EXTRA_HOSTBUILD_CONFIGURE_ARGS="
 --disable-static
 --disable-nls
 --with-system-zlib
+--with-zstd
 --disable-gprofng
+ZSTD_LIBS=-l:libzstd.a
 "
 
+termux_step_post_get_source() {
+	# Remove this marker all the time, as binutils is architecture-specific.
+	rm -rf $TERMUX_HOSTBUILD_MARKER
+}
+
 termux_step_host_build() {
 	$TERMUX_PKG_SRCDIR/configure $TERMUX_PKG_EXTRA_HOSTBUILD_CONFIGURE_ARGS
 	make -j $TERMUX_PKG_MAKE_PROCESSES
@@ -45,9 +54,6 @@ termux_step_host_build() {
 export LEXLIB=
 
 termux_step_pre_configure() {
-	# Remove this marker all the time, as binutils is architecture-specific.
-	rm -rf $TERMUX_HOSTBUILD_MARKER
-
 	export CPPFLAGS="$CPPFLAGS -Wno-c++11-narrowing"
 	# llvm upgraded a warning to an error, which caused this build (and some
 	# others, including the rust toolchain) to fail like so:

scripts/setup-ubuntu.sh

@@ -310,6 +310,9 @@ PACKAGES+=" patchelf"
 # Needed by lldb for python integration
 PACKAGES+=" swig"
 
+# Needed by binutils-cross
+PACKAGES+=" libzstd-dev"
+
 # Do not require sudo if already running as root.
 SUDO="sudo"
 if [ "$(id -u)" = "0" ]; then