diff -Nru gimp-2.7.4.orig/devel-docs/tools/Makefile.am gimp-2.7.4/devel-docs/tools/Makefile.am
--- gimp-2.7.4.orig/devel-docs/tools/Makefile.am	2012-02-11 16:48:48.581478261 +0100
+++ gimp-2.7.4/devel-docs/tools/Makefile.am	2012-02-11 16:44:38.665414294 +0100
@@ -34,7 +34,7 @@
 	$(libgimpcolor)		\
 	$(libgimpbase)		\
 	$(GTK_LIBS)		\
-	$(X_LIBS) -lX11 -lXext
+	$(X_LIBS) -lX11 -lXext -lm
 
 
 EXTRA_PROGRAMS = doc-shooter
diff -Nru gimp-2.7.4.orig/devel-docs/tools/Makefile.in gimp-2.7.4/devel-docs/tools/Makefile.in
--- gimp-2.7.4.orig/devel-docs/tools/Makefile.in	2012-02-11 16:48:57.343393068 +0100
+++ gimp-2.7.4/devel-docs/tools/Makefile.in	2012-02-11 16:45:47.707603180 +0100
@@ -438,7 +438,7 @@
 	$(libgimpcolor)		\
 	$(libgimpbase)		\
 	$(GTK_LIBS)		\
-	$(X_LIBS) -lX11 -lXext
+	$(X_LIBS) -lX11 -lXext -lm
 
 EXTRA_DIST = README.shooter
 all: all-am