This patch is by Michael Mair-Keimberger, as part of bug 338786. It
teaches the Makefile to support the user's LDFLAGS.

Gentoo-Bug: 338786

--- a/Makefile	2004-01-05 07:34:36.000000000 +0100
+++ b/Makefile	2013-03-15 22:11:58.105227982 +0100
@@ -5,18 +5,16 @@
 GKRELLM_INCLUDE = -I$(PREFIX)/include
 GTK_CFLAGS = `$(GTK_CONFIG) --cflags` 
 GTK_LIB = `$(GTK_CONFIG) --libs`
-FLAGS = -Wall -fPIC $(GTK_CFLAGS) $(GKRELLM_INCLUDE)
-CFLAGS ?= -O -g
-CFLAGS += $(FLAGS)
+FLAGS = -fPIC $(GTK_CFLAGS) $(GKRELLM_INCLUDE)
 LIBS = $(GTK_LIB)
 LFLAGS = -shared
-CC ?= gcc
+CC = $(CC)
 INSTALL = install -c
 INSTALL_PROGRAM = $(INSTALL) -s
 PIX = caps_off.xpm caps_on.xpm num_off.xpm num_on.xpm
 
 xkb.so: main.o
-	$(CC) $(FLAGS) main.o -o xkb.so $(LIBS) $(LFLAGS)
+	$(CC) $(CFLAGS) $(FLAGS) $(LDFLAGS) main.o -o xkb.so $(LIBS) $(LFLAGS)
 
 clean:
 	rm -f *.o core *.so* *.bak *~
@@ -25,4 +23,4 @@
 	$(INSTALL_PROGRAM) xkb.so $(PLUGIN_DIR)	
 	
 main.o: main.c $(PIX)
-	$(CC) $(FLAGS) -c main.c
+	$(CC) $(CFLAGS) $(FLAGS) $(LDFLAGS) -c main.c