[gok] Add missing -lm, remove unused -lusb - bgo#589120

[Benjamin Konrath <bkonrath src gnome org>]

commit 5328802302b0d0c8eeac9cd9d04b15fda17a3c53
Author: Ben Konrath <ben bagu org>
Date:   Tue Oct 20 11:48:32 2009 -0400

    Add missing -lm, remove unused -lusb - bgo#589120

 gok/Makefile.am |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)
---
diff --git a/gok/Makefile.am b/gok/Makefile.am
index 075babe..9509f66 100644
--- a/gok/Makefile.am
+++ b/gok/Makefile.am
@@ -81,10 +81,11 @@ gok_SOURCES = \
 	gok-modifier-keymasks.c gok-modifier-keymasks.h \
 	keysym2ucs.c					\
 	gok-ui-helper.c gok-ui-helper.h
+gok_LDADD =$(LDADD) -lm
 
 if ENABLE_LIBUSB_INPUT
 INCLUDES +=$(LIBUSB_CFLAGS)
-LDADD +=$(LIBUSB_LIBS)
+gok_LDADD +=$(LIBUSB_LIBS)
 gok_SOURCES +=gok-libusb.c gok-libusb.h
 endif
 
@@ -120,5 +121,6 @@ test_gok_wordcomplete_SOURCES = \
 keyboard_geometry_SOURCES = keyboard-geometry.c
 
 create_branching_keyboard_SOURCES = create-branching-keyboard.c
+create_branching_keyboard_LDADD =$(LDADD) -lm
 
 -include $(top_srcdir)/git.mk