The Easy Way If you’re a typical developer, you can install the easy way, using instructions at http://gcc.gnu.org/wiki/InstallingGCC or your system package manager such as: apt install gcc # for Debian, Ubuntu, etc. yum install gcc # for RedHat, CentOS, etc. brew install gcc # for Mac OS X The Hard Way GCC says the … Read more
PIE is to support address space layout randomization (ASLR) in executable files. Before the PIE mode was created, the program’s executable could not be placed at a random address in memory, only position independent code (PIC) dynamic libraries could be relocated to a random offset. It works very much like what PIC does for dynamic … Read more
As already pointed out, nvcc depends on gcc 4.4. It is possible to configure nvcc to use the correct version of gcc without passing any compiler parameters by adding softlinks to the bin directory created with the nvcc install. The default cuda binary directory (the installation default) is /usr/local/cuda/bin, adding a softlink to the correct … Read more
Explanation The error message told us, that the build-time dependency (in this case it is cc1) was not found, so all we need — install the appropriate package to the system (using package manager // from sources // another way) What is cc1: cc1 is the internal command which takes preprocessed C-language files and converts … Read more
Do not overwrite CMAKE_C_COMPILER, but export CC (and CXX) before calling cmake: export CC=/usr/local/bin/gcc export CXX=/usr/local/bin/g++ cmake /path/to/your/project make The export only needs to be done once, the first time you configure the project, then those values will be read from the CMake cache. UPDATE: longer explanation on why not overriding CMAKE_C(XX)_COMPILER after Jake’s comment … Read more
You may try to include library headers using -isystem instead of -I. This will make them “system headers” and GCC won’t report warnings for them.
Debian / Ubuntu The problem is you likely only have the gcc for your current architecture and that’s 64bit. You need the 32bit support files. For that, you need to install them sudo apt install gcc-multilib
You do need gcc installed to get gfortran, and you do need a fortran compiler for scipy. Homebrew will install a “bottled” (i.e., precompiled) version of the gcc package, which is very fast, if you have the Xcode Command Line Tools installed. These are separate from XCode proper. You can install them with xcode-select –install. … Read more
Use -l: instead of -l. For example -l:libXYZ.a to link with libXYZ.a. Notice the lib and .a are written out, as opposed to -lXYZ which would auto-expand to libXYZ.so/libXYZ.a. It is an option of the GNU ld linker: -l namespec … If namespec is of the form :filename, ld will search the library path for … Read more
LIBRARY_PATH is used by gcc before compilation to search directories containing static and shared libraries that need to be linked to your program. LD_LIBRARY_PATH is used by your program to search directories containing shared libraries after it has been successfully compiled and linked. EDIT: As pointed below, your libraries can be static or shared. If … Read more