mirror of https://gitlab.com/QEF/q-e.git
59 lines
2.0 KiB
Plaintext
59 lines
2.0 KiB
Plaintext
# Copyright (C) 2001-2016 Quantum ESPRESSO Foundation
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AC_DEFUN([X_AC_QE_ARCH], [
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AC_MSG_CHECKING([ARCH])
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# many HPC systems are configured so that running parallel programs
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# interactively is disabled: on those systems, AC_PROG_FC / _CC
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# would fail because they can't run the compiled executables.
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# to work around that, let's pretend we are cross-compiling even if we aren't
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# !!! this relies on undocumented Autoconf behavior !!!
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# This is used to distinguish between true and fake cross compilation
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# (only on NEC SX8 actually)
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if test "$host" != "" ; then ranlib=echo; fi
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# cross compiling? Why?
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#cross_compiling=yes
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if test "$host" = "" ; then host=$build; fi
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# identify host architecture
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if test "$arch" = ""
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then
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case $host in
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ia64-*-linux-gnu ) arch=ia64 ;;
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x86_64-*-linux-gnu ) arch=x86_64 ;;
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arm-*linux* ) arch=arm ;;
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aarch64-*-linux-gnu ) arch=arm ;;
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*-pc-linux-gnu ) arch=ia32 ;;
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*-apple-darwin* ) arch=mac686 ;;
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*-pc-cygwin ) arch=cygwin ;;
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sx*-nec* ) arch=necsx ;;
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powerpc64-*-linux-gnu ) arch=ppc64 ;;
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powerpc64le-*-linux-gnu ) arch=ppc64le ;;
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*-*-mingw32 ) arch=mingw32;;
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*-*-mingw64 ) arch=mingw64;;
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* ) AC_MSG_WARN(Unrecognized build architecture)
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;;
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esac
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# check for Cray machines
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if test -d /proc/cray_xt && test "$arch" != "craype"; then
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AC_MSG_WARN(This seems to be a cray but ARCH is not "craype")
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fi
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# workaround for IBM BG machines
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test -d /bgsys && arch=ppc64-bg
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test -f /bgsys/drivers/ppcfloor/bin/runjob && arch=ppc64-bgq
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fi
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case $arch in
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ia32 | ia64 | necsx | ppc64-bg )
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AC_MSG_WARN(Obsolete architecture? $arch)
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;;
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esac
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AC_MSG_RESULT(${arch})
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AC_SUBST(arch)
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])
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