From: Daniel Golle <daniel@makrotopia.org>
Date: Sat, 10 Jul 2021 20:21:26 +0100
Subject: backport: lua: make it easier to detect host-built Lua

Install pkg-config file also for host-build, clean up Lua symlinks.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Backport-by: Leonardo Mörlein <me@irrelefant.net>

diff --git a/package/utils/lua/Makefile b/package/utils/lua/Makefile
index d262d1e1fc2bfa1772ff2a88e388346d4550106f..e15142d8d26e988a6fa1cecf27a3f8fad368b980 100644
--- a/package/utils/lua/Makefile
+++ b/package/utils/lua/Makefile
@@ -134,8 +134,12 @@ define Host/Install
 		INSTALL_TOP="$(STAGING_DIR_HOSTPKG)" \
 		install
 
-	$(LN) $(STAGING_DIR_HOSTPKG)/bin/lua5.1 $(STAGING_DIR_HOSTPKG)/bin/lua
-	$(LN) $(STAGING_DIR_HOSTPKG)/bin/luac5.1 $(STAGING_DIR_HOSTPKG)/bin/luac
+	$(INSTALL_DIR) $(STAGING_DIR_HOSTPKG)/lib/pkgconfig
+	$(CP) $(HOST_BUILD_DIR)/etc/lua.pc $(STAGING_DIR_HOSTPKG)/lib/pkgconfig/lua5.1.pc
+
+	$(LN) lua5.1 $(STAGING_DIR_HOSTPKG)/bin/lua
+	$(LN) luac5.1 $(STAGING_DIR_HOSTPKG)/bin/luac
+	$(LN) lua5.1.pc $(STAGING_DIR_HOSTPKG)/lib/pkgconfig/lua.pc
 endef
 
 define Build/InstallDev