libgmp-10.dll is missing

Question

I recently installed MinGW on my 64-bit Windows 7 computer and when I attempt to compile the most basic of c++ programs, for example

#include         


        

Answer 1

Caution - removing stuff from your path can compromise your system!

Interestingly, you not only need to add the MinGW bin to your Path, but also you need to make sure that certain things are not on your path*. In my case, I saved my entire path variable as a backup, deleted everything non-system from my path except for MinGW and CMake, leaving:

C:\MinGW\bin;%SystemRoot%\system32;%SystemRoot%;%SystemRoot%\System32\Wbem;C:\Program Files (x86)\CMake\bin

You should use the appropriate elements from your system path.

I first tried to do this with a batch job that launched CMake, but it seems that the CMake GUI was reaching back and grabbing the System 'Path' variable instead of the command prompt 'Path' variable, which I had printed and confirmed was as listed above before launching CMake.

Incidentally, I backed up the entire Windows VM before starting!

* For instance: various references, including known issues, mention sh.exe. I inherited this VM from my client and hacked it up further, so it's easier for me to use a clean path for my cross-compiling task and return afterward...