diff -up ./src/Makefile.am.orig ./src/Makefile.am
--- ./src/Makefile.am.orig	2014-07-06 12:22:10.589534303 +0300
+++ ./src/Makefile.am	2014-07-06 12:22:19.319183252 +0300
@@ -39,7 +39,8 @@ libhocr_la_LDFLAGS = -version-info 0:0:0
 libhocr_la_LIBADD = \
         $(hspell_LIBS) \
         $(tiff_LIBS) \
-        $(fftw_LIBS)
+        $(fftw_LIBS) \
+        -lm
         
 library_includedir = $(includedir)/libhocr
 library_include_HEADERS = \
diff -up ./examples/hocr/Makefile.am.orig ./examples/hocr/Makefile.am
--- ./examples/hocr/Makefile.am.orig	2014-07-06 11:55:43.880450453 +0300
+++ ./examples/hocr/Makefile.am	2014-07-06 11:57:14.060879862 +0300
@@ -24,6 +24,7 @@ hocr_LDADD= \
         $(tiff_LIBS) \
         $(fftw_LIBS) \
         $(libhocr_la_LIBADD) \
-        $(top_builddir)/src/*.o -lm
+        $(top_builddir)/src/libhocr.la \
+        $(top_builddir)/src/libhocrgtk.la
 
 endif