diff --git a/srcpkgs/gnuplot/template b/srcpkgs/gnuplot/template
index ba7e8b7eaa..42a034dc2a 100644
--- a/srcpkgs/gnuplot/template
+++ b/srcpkgs/gnuplot/template
@@ -3,7 +3,7 @@ pkgname=gnuplot
 version=5.0.2
 revision=1
 configure_args="--with-readline=builtin"
-hostmakedepends="pkg-config"
+hostmakedepends="pkg-config lua52"
 makedepends="zlib-devel libX11-devel gd-devel lua52-devel"
 depends="gnuplot-common>=${version}_${revision}"
 replaces="gnuplot<4.6.6_1"
@@ -32,7 +32,7 @@ pre_configure() {
 
 	if [ "$CROSS_BUILD" ]; then
 		sed -i 's|^\(SUBDIRS =.*\)demo |\1|' Makefile.in
-		sed -i 's|^\(CFLAGS =\).*|\1 -O0|' docs/Makefile.in
+		sed -i 's|^\(SUBDIRS =.*\)docs |\1|' Makefile.in
 	fi
 
 	mkdir -p x11
@@ -63,8 +63,6 @@ do_build() {
 	if [ -z "$CROSS_BUILD" ]; then
 		make -C wx ${makejobs}
 		make -C qt ${makejobs}
-	else
-		make -C x11/docs CC=gcc
 	fi
 	make -C x11 ${makejobs}
 }
@@ -79,6 +77,11 @@ do_install() {
 		mv ${DESTDIR}/usr/bin/gnuplot{,-qt}
 		# install wx
 		make -C wx DESTDIR=${DESTDIR} install
+	else
+		find -name '*.o' -delete
+		make -C x11/docs DESTDIR=${DESTDIR} \
+			CC="$BUILD_CC" CFLAGS="$BUILD_CFLAGS" \
+			LDFLAGS="$BUILD_LDFLAGS" install
 	fi
 	vlicense x11/Copyright LICENSE
 }