I'm building FSL 4.0 on a RHEL-3 system. The package built successfully except for the 'fast' binary, where I got the error appended below. Any suggestions for getting 'fast' to build? Thanks, Susan. ---- Making project src/fast /bin/rm -f /tmp/fslgrot *.o *.a *.exe core depend.mk /bin/rm -f /tmp/fslgrot fast_exe mfast_exe /usr/local/fsl-4.0.0/config/common/rules.mk:320: depend.mk: No such file or directory Building dependency file depend.mk c++ -Wall -ansi -pedantic -march=pentium -mcpu=pentium -O -Izimage/common -Izimage/fundamental -Izimage/imagebase -Izimage/imageio -Izimage/imageprocess -Izimage/math -I/usr/local/fsl-4.0.0/extras/include -I. -I/usr/local/fsl-4.0.0/include -I/usr/local/fsl-4.0.0/include -c fast.cpp c++ -Wall -ansi -pedantic -march=pentium -mcpu=pentium -O -Izimage/common -Izimage/fundamental -Izimage/imagebase -Izimage/imageio -Izimage/imageprocess -Izimage/math -I/usr/local/fsl-4.0.0/extras/include -I. -I/usr/local/fsl-4.0.0/include -I/usr/local/fsl-4.0.0/include -c mriseg.cpp In file included from /usr/include/c++/3.2.3/cmath:461, from zimage/imageprocess/vclassification.cpp:97, from mriseg.cpp:94: zimage/math/matrix.h: In function `float det(const ZMatrix<T>&) [with T = float]': zimage/common/commfunc.h:24: instantiated from `T Abs(const T&) [with T = float]' /usr/include/c++/3.2.3/cmath:461: instantiated from here zimage/math/matrix.h:212: no matching function for call to `LUdcmp( ZMatrix<float>&, float*&)' zimage/math/mathcommon.h:27: candidates are: bool LUdcmp(ZMatrix<double>&) zimage/math/mathcommon.h:28: bool LUdcmp(ZMatrix<double>&, ZVector<int>&) zimage/math/mathcommon.h:29: bool LUdcmp(ZMatrix<float>&) zimage/math/mathcommon.h:30: bool LUdcmp(ZMatrix<float>&, ZVector<int>&) make: *** [mriseg.o] Error 1 c++ -Wall -ansi -pedantic -march=pentium -mcpu=pentium -O -Izimage/common -Izimage/fundamental -Izimage/imagebase -Izimage/imageio -Izimage/imageprocess -Izimage/math -I/usr/local/fsl-4.0.0/extras/include -I. -I/usr/local/fsl-4.0.0/include -I/usr/local/fsl-4.0.0/include -c mfast.cpp c++ -Wall -ansi -pedantic -march=pentium -mcpu=pentium -O -Izimage/common -Izimage/fundamental -Izimage/imagebase -Izimage/imageio -Izimage/imageprocess -Izimage/math -I/usr/local/fsl-4.0.0/extras/include -I. -I/usr/local/fsl-4.0.0/include -I/usr/local/fsl-4.0.0/include -c mmriseg.cpp In file included from /usr/include/c++/3.2.3/cmath:461, from zimage/imageprocess/vclassification.cpp:97, from mmriseg.cpp:93: zimage/math/matrix.h: In function `float det(const ZMatrix<T>&) [with T = float]': zimage/common/commfunc.h:24: instantiated from `T Abs(const T&) [with T = float]' /usr/include/c++/3.2.3/cmath:461: instantiated from here zimage/math/matrix.h:212: no matching function for call to `LUdcmp( ZMatrix<float>&, float*&)' zimage/math/mathcommon.h:27: candidates are: bool LUdcmp(ZMatrix<double>&) zimage/math/mathcommon.h:28: bool LUdcmp(ZMatrix<double>&, ZVector<int>&) zimage/math/mathcommon.h:29: bool LUdcmp(ZMatrix<float>&) zimage/math/mathcommon.h:30: bool LUdcmp(ZMatrix<float>&, ZVector<int>&) make: *** [mmriseg.o] Error 1 make: Target `all' not remade because of errors. ========================= ERROR::Could not make fast successfully