libgrpc: Try to fix building under docker image

packages/libgrpc/build.sh

@@ -16,9 +16,12 @@ TERMUX_PKG_EXTRA_CONFIGURE_ARGS="
 "
 
 termux_step_host_build () {
+	termux_setup_cmake
+	local protoinstall=$TERMUX_TOPDIR/libprotobuf/host-build/install
 	cmake $TERMUX_PKG_SRCDIR -G "Unix Makefiles" \
 		$TERMUX_PKG_EXTRA_CONFIGURE_ARGS \
-		-DCMAKE_CXX_FLAGS="-Wl,-L$TERMUX_TOPDIR/libprotobuf/host-build/src/.libs -Wl,-lprotobuf -Wl,-lprotoc"
+		-DCMAKE_CXX_FLAGS="-I$protoinstall/include -L$protoinstall/lib" \
+		-D_gRPC_PROTOBUF_LIBRARIES="-lprotobuf -lprotoc"
 	make -j $TERMUX_MAKE_PROCESSES grpc_cpp_plugin
 }
 

packages/libprotobuf/build.sh

@@ -1,8 +1,8 @@
 TERMUX_PKG_HOMEPAGE=https://github.com/google/protobuf
 TERMUX_PKG_DESCRIPTION="Protocol buffers C++ library"
-TERMUX_PKG_VERSION=3.3.0
+TERMUX_PKG_VERSION=3.3.2
 TERMUX_PKG_SRCURL=https://github.com/google/protobuf/archive/v${TERMUX_PKG_VERSION}.tar.gz
-TERMUX_PKG_SHA256=94c414775f275d876e5e0e4a276527d155ab2d0da45eed6b7734301c330be36e
+TERMUX_PKG_SHA256=8b8e442becbeff637f160c1ef4a3a56769c50ba7c9ff939ccc94086530ff00e4
 TERMUX_PKG_FOLDERNAME=protobuf-$TERMUX_PKG_VERSION
 TERMUX_PKG_HOSTBUILD=yes
 TERMUX_PKG_BUILD_IN_SRC=yes
@@ -10,6 +10,12 @@ TERMUX_PKG_EXTRA_CONFIGURE_ARGS="--with-protoc=$TERMUX_PKG_HOSTBUILD_DIR/src/pro
 # We extracted libprotobuf from protobuf earlier:
 TERMUX_PKG_CONFLICTS="protobuf (<= 3.0.0)"
 
+termux_step_host_build() {
+	"$TERMUX_PKG_SRCDIR/configure" --prefix=$TERMUX_PKG_HOSTBUILD_DIR/install
+	# We install protobuf so that libgrpc can use it in a hackish way:
+	make -j $TERMUX_MAKE_PROCESSES install
+}
+
 termux_step_post_extract_package () {
 	./autogen.sh
 }