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