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1,899 bytes added ,  06:17, 1 November 2016
→‎GraphicsMagick: add fftw section, above
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== FFTW ==
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http://www.fftw.org/
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cd $downloads
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wget http://www.fftw.org/fftw-3.3.5.tar.gz
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Start from a clean state
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exit
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bash
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export PATH=/usr/local/gcc-6.2.0_binutils-2.27_isl/bin:$PATH
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which gfortran
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# should be /usr/local/gcc-6.2.0_binutils-2.27_isl/bin/gfortran
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cd $buildroot
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tar --no-same-owner -xvf $downloads/fftw-3.3.5.tar.gz
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cd fftw-3.3.5/
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=== Single precision ===
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./configure --enable-shared --enable-sse2 --enable-avx --enable-openmp --enable-threads --enable-float CPPFLAGS="-I/usr/local/gcc-6.2.0_binutils-2.27_isl/include" CFLAGS="-O2 -march=native -L/usr/local/gcc-6.2.0_binutils-2.27_isl/lib64" CXXFLAGS="-O2 -march=native -L/usr/local/gcc-6.2.0_binutils-2.27_isl/lib64" FFLAGS="-O2 -march=native -L/usr/local/gcc-6.2.0_binutils-2.27_isl/lib64" LDFLAGS=-Wl,-rpath,/usr/local/gcc-6.2.0_binutils-2.27_isl/lib64 PKG_CONFIG_PATH=/usr/local/gcc-6.2.0_binutils-2.27_isl/lib64/pkgconfig --prefix=/usr/local/gcc-6.2.0_binutils-2.27_isl
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make -j6
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make check
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as root ({{codeline|su}}, not {{codeline|sudo}},  because we want PATH to contain {{Path|/usr/local/gcc-6.2.0_binutils-2.27_isl/bin}})
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make install
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exit
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=== Double precision ===
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./configure --enable-shared --enable-sse2 --enable-avx --enable-openmp --enable-threads CPPFLAGS="-I/usr/local/gcc-6.2.0_binutils-2.27_isl/include" CFLAGS="-O2 -march=native -L/usr/local/gcc-6.2.0_binutils-2.27_isl/lib64" CXXFLAGS="-O2 -march=native -L/usr/local/gcc-6.2.0_binutils-2.27_isl/lib64" FFLAGS="-O2 -march=native -L/usr/local/gcc-6.2.0_binutils-2.27_isl/lib64" LDFLAGS=-Wl,-rpath,/usr/local/gcc-6.2.0_binutils-2.27_isl/lib64 PKG_CONFIG_PATH=/usr/local/gcc-6.2.0_binutils-2.27_isl/lib64/pkgconfig --prefix=/usr/local/gcc-6.2.0_binutils-2.27_isl
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make -j6
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make check
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as root ({{codeline|su}}, not {{codeline|sudo}},  because we want PATH to contain {{Path|/usr/local/gcc-6.2.0_binutils-2.27_isl/bin}})
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make install
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exit
    
== GraphicsMagick ==
 
== GraphicsMagick ==
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{{codeline|exit}} root session, then {{codeline|exit}} current bash, to return to a clean state
 
{{codeline|exit}} root session, then {{codeline|exit}} current bash, to return to a clean state
      
== Octave itself ==
 
== Octave itself ==
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