- use proper include dir (Simon Pasch)

- cleanup a little while at it

package/libdrm/libdrm.mk

@@ -16,10 +16,10 @@ libdrm-source: $(DL_DIR)/$(LIBDRM_SOURCE)
 
 $(LIBDRM_DIR)/.unpacked: $(DL_DIR)/$(LIBDRM_SOURCE)
 	$(LIBDRM_CAT) $(DL_DIR)/$(LIBDRM_SOURCE) | tar -C $(BUILD_DIR) $(TAR_OPTIONS) -
-	touch $(LIBDRM_DIR)/.unpacked
+	touch $@
 
 $(LIBDRM_DIR)/.configured: $(LIBDRM_DIR)/.unpacked
-	(cd $(LIBDRM_DIR); \
+	(cd $(LIBDRM_DIR); rm -f config.cache; \
 	$(TARGET_CONFIGURE_OPTS) \
 	CFLAGS="$(TARGET_CFLAGS) " \
 	LDFLAGS="$(TARGET_LDFLAGS)" \
@@ -36,11 +36,11 @@ $(LIBDRM_DIR)/.configured: $(LIBDRM_DIR)/.unpacked
 		--sysconfdir=/etc \
 		--datadir=/usr/share \
 		--localstatedir=/var \
-		--includedir=/include \
+		--includedir=/usr/include \
 		--mandir=/usr/man \
 		--infodir=/usr/info \
 	)
-	touch $(LIBDRM_DIR)/.configured
+	touch $@
 
 $(LIBDRM_DIR)/.compiled: $(LIBDRM_DIR)/.configured
 	$(MAKE) CCexe="$(HOSTCC)" -C $(LIBDRM_DIR)