Compilation error on mingW64

[Plume-SPH]

Hi, when I try to compile on mingW64, I am seeing the following error:
cd C:/Users/hitca/Documents/New_pre/code/dependencies-new/METIS/build/programs && C:/msys64/mingw64/bin/cc.exe @CMakeFiles/gpmetis.dir/includes_C.rsp -std=c99 -fno-strict-aliasing -march=native -Werror -Wall -pedantic -Wno-unused-function -Wno-unused-but-set-variable -Wno-unused-variable -Wno-unknown-pragmas -Wno-unused-label -DNDEBUG -DNDEBUG2 -O3 -MD -MT programs/CMakeFiles/gpmetis.dir/gpmetis.c.obj -MF CMakeFiles/gpmetis.dir/gpmetis.c.obj.d -o CMakeFiles/gpmetis.dir/gpmetis.c.obj -c C:/Users/hitca/Documents/New_pre/code/dependencies-new/METIS/programs/gpmetis.c
C:/Users/hitca/Documents/New_pre/code/dependencies-new/METIS/programs/gpmetis.c: In function 'GPReportResults':
C:/Users/hitca/Documents/New_pre/code/dependencies-new/METIS/programs/gpmetis.c:244:19: error: storage size of 'usage' isn't known
244 | struct rusage usage;
| ^~~~~
C:/Users/hitca/Documents/New_pre/code/dependencies-new/METIS/programs/gpmetis.c:245:5: error: implicit declaration of function 'getrusage' [-Werror=implicit-function-declaration]
245 | getrusage(RUSAGE_SELF, &usage);
| ^~~~~~~~~
C:/Users/hitca/Documents/New_pre/code/dependencies-new/METIS/programs/gpmetis.c:245:15: error: 'RUSAGE_SELF' undeclared (first use in this function)
245 | getrusage(RUSAGE_SELF, &usage);
| ^~~~~~~~~~~
C:/Users/hitca/Documents/New_pre/code/dependencies-new/METIS/programs/gpmetis.c:245:15: note: each undeclared identifier is reported only once for each function it appears

This seems due to METIS is using getrusage() which is only available on Linux? Could you give some advice on how to walk around this issue?

[Gavin Rohrer]

A quick solution would be to just change the ifdef flags in those files.

At mpmetis.c:191, gpmetis.c:242, and ndmetis.c:175, change from

#ifndef MACOS

to

#if !defined(MACOS) && !defined(WIN32) && !defined(__MINGW32__)