So trying to make a 64-bit version of Sage, whilst SAGE_FORTRAN_LIB points to a 32-bit library, will now be detected. ( This test is only performed on Solaris as that is the only platform where I have sufficient information to do it properly).
Checks that SAGE_FORTRAN_LIB points to a dynamic library which is of the right type (32 or 64 bit), depending on the setting of SAGE64. The Fortran compiler is more difficult than C and C++, as gfortran does not process the -dumpversion option in the same logical way as gcc and g++. 
Fully checks there are not a mix of GNU and non-GNU compilers Update prereq from 0.3 to 0.4 #7021 did this for C and C++ compilers, but Fortran was excluded, as stated in mixing a non-GNU Fortran compiler with GCC is not detected very early #7903. If SAGE_FORTRAN is defined as something non-empty, then the test is performed on OS X too. In the event GNU tools are used, checks gcc, g++ and gfortran are the same version on all platforms except OS X. Prints Using the binary Fortran compiler which is included in Sage if using the binary included on OS X. #8026, which was a duplicate of Update prereq to check for Fortran compiler #8024. This addresses Update prereq to check for Fortran compiler #8024 and If possible - update prereq to require gfortran when installing on any OS except OS X. Checks for a Fortran compiler on any platform except OS X. Fink offers GCC packages (all released versions) - similar to MacPorts, but also offers binaries it does not have the developer versions, just the releases.This is a further update to the 'prereq' script. For the developer version, the "Portfile" is updated approx. MacPorts (package name, e.g., "gcc48") - the fastest way to get a developer version of GCC. MacPorts comes with a packing software, but all software is compiled before installation. HPC Mac OS X offers GCC builds, which include gfortran. Other projects packaging GCC (and gfortran) binaries for Mac include: You can also install from other project packing software like macports or homebrew : OS X Mountain Lion (10.8): download gfortran 4.8.2 OS X Mavericks (10.9): download gfortran 4.9.0 or gfortran 4.8.2 OS X Yosemite (10.10): download gfortran 5.2 or gfortran 4.9.2 
OS X El Capitan (10.11): download gfortran 6.1
MacOS Sierra (10.12): download gfortran 6.3 The gfortran maintainers offer nice Apple-style installers for: Once it is installed, you can open a terminal window and check if it has been installed:įortran is not available with Xcode. You can download it from the App Store. Once it is installed and you start it, it will ask you to install command line tools.
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