Merge pull request #4260 from RajalakshmiSR/AIX-M4 #532

Job	Run time
build (ubuntu-latest, gfortran, cmake)	12m 27s
build (ubuntu-latest, gfortran, make)	8m 9s
build (ubuntu-latest, flang, cmake)	13m 59s
build (ubuntu-latest, flang, make)	7m 16s
build (macos-latest, gfortran, cmake)	22m 16s
build (macos-latest, gfortran, make)	40m 41s
cross_build (mips64el, mips64el-linux-gnuabi64, DYNAMIC_ARCH=1 TARGET=GENERIC)	5m 48s
cross_build (riscv64, riscv64-linux-gnu, TARGET=RISCV64_GENERIC)	5m 2s
cross_build (mipsel, mipsel-linux-gnu, TARGET=MIPS1004K)	6m 30s
msys2 (MINGW64, int32, Release)	21m 47s
cross_build (alpha, alpha-linux-gnu, TARGET=EV4)	3m 50s
msys2 (MINGW64, int64, Release)	23m 8s
msys2 (MINGW32, int32, Release)	24m 21s
msys2 (CLANG64, int32, Release)	2h 14m 21s
msys2 (CLANG64, int64, Release)	1h 43m 58s
msys2 (CLANG32, int32, Release)	1h 17m 10s
msys2 (MINGW64, int32, None, mingw-w64-x86_64, fc)	18m 15s
	8h 48m 58s

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