Thanks Justin, here is it the copy-out: ser...@sergio-laptop:~/Desktop/gromacs-4.5.3$ ./configure checking build system type... i686-pc-linux-gnu checking host system type... i686-pc-linux-gnu checking for a BSD-compatible install... /usr/bin/install -c checking whether build environment is sane... yes checking for a thread-safe mkdir -p... /bin/mkdir -p checking for gawk... gawk checking whether make sets $(MAKE)... yes checking how to create a ustar tar archive... gnutar checking for cc... cc checking for C compiler default output file name... a.out checking whether the C compiler works... yes checking whether we are cross compiling... no checking for suffix of executables... checking for suffix of object files... o checking whether we are using the GNU C compiler... yes checking whether cc accepts -g... yes checking for cc option to accept ISO C89... none needed checking for style of include used by make... GNU checking dependency style of cc... gcc3 checking dependency style of cc... gcc3 checking how to run the C preprocessor... cc -E checking for grep that handles long lines and -e... /bin/grep checking for egrep... /bin/grep -E checking whether ln -s works... yes checking whether cc accepts -O3... yes checking whether cc accepts -msse2... yes checking whether cc accepts -funroll-all-loops... yes checking whether cc accepts -std=gnu99... yes checking whether cc accepts -fexcess-precision=fast... no checking whether cc accepts -O3 -fomit-frame-pointer -finline-functions -Wall -Wno-unused -msse2 -funroll-all-loops -std=gnu99... yes checking for ANSI C header files... yes checking for sys/types.h... yes checking for sys/stat.h... yes checking for stdlib.h... yes checking for string.h... yes checking for memory.h... yes checking for strings.h... yes checking for inttypes.h... yes checking for stdint.h... yes checking for unistd.h... yes checking for unistd.h... (cached) yes checking sys/time.h usability... yes checking sys/time.h presence... yes checking for sys/time.h... yes checking sched.h usability... yes checking sched.h presence... yes checking for sched.h... yes checking for sysconf... yes checking for the pthreads library -lpthreads... no checking whether pthreads work without any flags... no checking whether pthreads work with -Kthread... no checking whether pthreads work with -kthread... no checking for the pthreads library -llthread... no checking whether pthreads work with -pthread... yes checking for joinable pthread attribute... PTHREAD_CREATE_JOINABLE checking if more special flags are required for pthreads... no checking for cc_r... cc checking if atomic operations are supported... yes checking whether byte ordering is bigendian... no checking that size_t can hold pointers... yes checking for SIGUSR1... yes checking for pipes... yes checking floating-point format... IEEE754 (little-endian byte and word order) checking whether ln -s works... yes checking whether make sets $(MAKE)... (cached) yes checking for a sed that does not truncate output... /bin/sed checking for ld used by cc ... /usr/bin/ld checking if the linker (/usr/bin/ld) is GNU ld... yes checking for /usr/bin/ld option to reload object files... -r checking for BSD-compatible nm... /usr/bin/nm -B checking how to recognise dependent libraries... pass_all checking dlfcn.h usability... yes checking dlfcn.h presence... yes checking for dlfcn.h... yes checking for g++... no checking for c++... no checking for gpp... no checking for aCC... no checking for CC... no checking for cxx... no checking for cc++... no checking for cl.exe... no checking for FCC... no checking for KCC... no checking for RCC... no checking for xlC_r... no checking for xlC... no checking whether we are using the GNU C++ compiler... no checking whether g++ accepts -g... no checking dependency style of g++... none checking the maximum length of command line arguments... 32768 checking command to parse /usr/bin/nm -B output from cc object... failed checking for objdir... .libs checking for ar... ar checking for ranlib... ranlib checking for strip... strip checking if cc supports -fno-rtti -fno-exceptions... no checking for cc option to produce PIC... -fPIC checking if cc PIC flag -fPIC works... yes checking if cc static flag -static works... yes checking if cc supports -c -o file.o... yes checking whether the cc linker (/usr/bin/ld) supports shared libraries... yes checking dynamic linker characteristics... GNU/Linux ld.so checking how to hardcode library paths into programs... immediate checking whether stripping libraries is possible... yes checking for shl_load... no checking for shl_load in -ldld... no checking for dlopen... no checking for dlopen in -ldl... yes checking whether a program can dlopen itself... yes checking whether a statically linked program can dlopen itself... no checking if libtool supports shared libraries... yes checking whether to build shared libraries... no checking whether to build static libraries... yes configure: creating libtool appending configuration tag "CXX" to libtool appending configuration tag "F77" to libtool checking for special C compiler options needed for large files... no checking for _FILE_OFFSET_BITS value needed for large files... 64 checking for _LARGEFILE_SOURCE value needed for large files... no checking for sqrt in -lm... yes checking for fftw3.h... configure: error: Cannot find the default external FFT library (fftw3). Other alternatives are 'fftw2', or 'mkl' for Intel MKL. You are STRONGLY recommended to use one of these - fftw is free.
Use CPPFLAGS and LDFLAGS if the library is installed in a non-standard location. (see FAQ at http://www.gromacs.org) If you dont care about performance you can also specify 'fftpack' to use a slower set of FFTs built into Gromacs. (Just install FFTW3 unless you really know what you are doing). ser...@sergio-laptop:~/Desktop/gromacs-4.5.3$ make make: *** No targets specified and no makefile found. Stop.
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