sys-libs/ncurses: fix build on platforms that don't support static linking

Package-Manager: portage-2.2.20-prefix

sys-libs/ncurses/ncurses-6.0-r1.ebuild

@@ -68,13 +68,24 @@ src_configure() {
 	# or installing for the first time.  Build a local copy of tic whenever
 	# the host version isn't available. #249363 #557598
 	if ! ROOT=/ has_version "~sys-libs/${P}:0" ; then
+		local lbuildflags="-static"
+
+		# some toolchains don't quite support static linking
+		local dbuildflags="-Wl,-rpath,${WORKDIR}/lib"
+		case ${CHOST} in
+			*-darwin*)  dbuildflags=     ;;
+		esac
+		echo "int main() {}" | \
+			$(tc-getCC) -o x -x c - ${lbuildflags} -pipe >& /dev/null \
+			|| lbuildflags="${dbuildflags}"
+
 		# We can't re-use the multilib BUILD_DIR because we run outside of it.
 		BUILD_DIR="${WORKDIR}" \
 		CHOST=${CBUILD} \
 		CFLAGS=${BUILD_CFLAGS} \
 		CXXFLAGS=${BUILD_CXXFLAGS} \
 		CPPFLAGS=${BUILD_CPPFLAGS} \
-		LDFLAGS="${BUILD_LDFLAGS} -static" \
+		LDFLAGS="${BUILD_LDFLAGS} ${lbuildflags}" \
 		multijob_child_init do_configure cross --without-shared --with-normal
 	fi
 	multilib-minimal_src_configure
@@ -165,7 +176,7 @@ do_configure() {
 
 	# Force bash until upstream rebuilds the configure script with a newer
 	# version of autotools. #545532
-	CONFIG_SHELL=/bin/bash \
+	CONFIG_SHELL=${EPREFIX}/bin/bash \
 	ECONF_SOURCE=${S} \
 	econf "${conf[@]}" "$@"
 }