--- grass-6.2.0/lib/gis/Makefile.orig	2006-04-18 23:12:22.000000000 +0200
+++ grass-6.2.0/lib/gis/Makefile	2006-12-12 20:44:00.568648997 +0100
@@ -1,7 +1,7 @@
 MODULE_TOPDIR = ../..
 
 LIB_NAME = $(GIS_LIBNAME)
-EXTRA_LIBS = $(XDRLIB) $(DATETIMELIB) $(INTLLIB)
+EXTRA_LIBS = $(XDRLIB) $(DATETIMELIB) $(INTLLIB) -lm
 
 include $(MODULE_TOPDIR)/include/Make/Lib.make
 include $(MODULE_TOPDIR)/include/Make/Doxygen.make
--- grass-6.2.0/lib/vector/rtree/Makefile.orig	2006-02-09 04:08:58.000000000 +0100
+++ grass-6.2.0/lib/vector/rtree/Makefile	2006-12-12 20:42:37.435911532 +0100
@@ -9,6 +9,8 @@
 	rect.o \
 	split_q.o 
 
+EXTRA_LIBS = -lm
+
 include $(MODULE_TOPDIR)/include/Make/Lib.make
 
 RTLINC = $(ARCH_INCDIR)/rtree
--- grass-6.2.0/lib/vector/diglib/Makefile.orig	2005-11-10 12:05:03.000000000 +0100
+++ grass-6.2.0/lib/vector/diglib/Makefile	2006-12-12 20:43:39.687459045 +0100
@@ -1,6 +1,6 @@
 MODULE_TOPDIR = ../../..
 
-EXTRA_LIBS=$(GISLIB) $(RTREELIB)
+EXTRA_LIBS=$(GISLIB) $(RTREELIB) -lm
 
 LIB_NAME = $(DIG2_LIBNAME)