[gmx-users] gromacs5.0-beta2 version installing error

[JuYeon]

hi gromacs-users
i downloaded gromacs-5.0-beta2-tar.gz which is recently released(2014-01-29)and tried to install on Ubuntu
after i did cmake .. -DGMX_BUILD_OWN_FFTW=ONi got a warning that it will try to link fftw files but it cant be sure fftw will be installed if u want to be sure use "make fftwBuild" so i did it and i got this messages -----------------------------------------------------------------------------------------------------[100%] Performing download step (verify and extract) for 'fftwBuild'-- verifying file...     file='http:/www.fftw.org/fftw-3.3.3.tar.gz'-- verifying file... warning: did not verify file - no URL_HASH specified?-- extracting...     src='/home/ju-yeon/gromacs-5.0-beta2/build/src/contrib/fftw/fftwBuild-prefix/src/http:/www.fftw.org/fftw-3.3.3.tar.gz'     dst='/home/ju-yeon/gromacs-5.0-beta2/build/src/contrib/fftw/fftwBuild-prefix/src/fftwBuild'CMake Error at fftwBuild-stamp/extract-fftwBuild.cmake:11 (message):  error: file to extract does not exist:  '/home/ju-yeon/gromacs-5.0-beta2/build/src/contrib/fftw/fftwBuild-prefix/src/http:/www.fftw.org/fftw-3.3.3.tar.gz'

make[3]: *** [src/contrib/fftw/fftwBuild-prefix/src/fftwBuild-stamp/fftwBuild-download] Error 1make[2]: *** [src/contrib/fftw/CMakeFiles/fftwBuild.dir/all] Error 2make[1]: *** [src/contrib/fftw/CMakeFiles/fftwBuild.dir/rule] Error 2make: *** [fftwBuild] Error 2-----------------------------------------------------------------------------------------------------
i think the web page address on the makefile is wrong it should be http://www.fftw.org~now it has only one slash
i also tired to make "http:/www.fftw.org" folder in "/home/ju-yeon/gromacs-5.0-beta2/build/src/contrib/fftw/fftwBuild-prefix/src"(i already downloaded fftw file so was going to put fftw file in that folder)but since it has : i cant make folder(u cant use : in folder name) 
please help me which part should i fix i dont want to build fftw by myself TT

 		 	   		  

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