--- old/Makefile.in	2011-07-04 11:58:49.000000000 +0300
+++ new/Makefile.in	2015-11-09 13:20:24.823333353 +0200
@@ -569,7 +569,7 @@
 	lib/string_list-c.cpp lib/find_speller.cpp lib/speller-c.cpp \
 	lib/string_pair_enumeration-c.cpp lib/new_checker.cpp \
 	modules/filter/url.cpp $(am__append_3)
-libaspell_la_LIBADD = $(LTLIBINTL) $(PTHREAD_LIB)
+libaspell_la_LIBADD = $(LTLIBINTL) $(PTHREAD_LIB) -lm
 @INCREMENTED_SONAME_FALSE@libaspell_la_LDFLAGS = -version-info 16:5:1 -no-undefined
 @INCREMENTED_SONAME_TRUE@libaspell_la_LDFLAGS = -version-info 16:5:0 -no-undefined
 @PSPELL_COMPATIBILITY_TRUE@libpspell_la_SOURCES = lib/dummy.cpp