diff -urN openjpeg_v1_4_sources_r697.old/libopenjpeg/CMakeLists.txt openjpeg_v1_4_sources_r697/libopenjpeg/CMakeLists.txt
--- openjpeg_v1_4_sources_r697.old/libopenjpeg/CMakeLists.txt	2011-03-30 14:25:14.000000000 +0200
+++ openjpeg_v1_4_sources_r697/libopenjpeg/CMakeLists.txt	2011-03-30 14:25:50.000000000 +0200
@@ -30,6 +30,7 @@
   ENDIF(BUILD_SHARED_LIBS)
 ENDIF(WIN32)
 ADD_LIBRARY(${OPENJPEG_LIBRARY_NAME} ${OPENJPEG_SRCS})
+TARGET_LINK_LIBRARIES(${OPENJPEG_LIBRARY_NAME} -lm)
 SET_TARGET_PROPERTIES(${OPENJPEG_LIBRARY_NAME} PROPERTIES ${OPENJPEG_LIBRARY_PROPERTIES})
 
 # Install library