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67 lines
2.0 KiB
67 lines
2.0 KiB
# ===========================================================================
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# http://www.nongnu.org/autoconf-archive/ax_f90_module_flag.html
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# ===========================================================================
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#
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# SYNOPSIS
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#
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# AX_F90_MODULE_FLAG
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#
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# DESCRIPTION
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#
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# Find Fortran 90 modules inclusion flag. The module inclusion flag is
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# stored in the cached variable ax_f90_modflag. An error is triggered if
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# the flag cannot be found. Supported are the -I GNU compilers flag, the
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# -M SUN compilers flag, and the -p Absoft Pro Fortran compiler flag.
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#
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# LICENSE
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#
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# Copyright (c) 2009 Luc Maisonobe <luc@spaceroots.org>
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# Copyright (c) 2009 Julian C. Cummings <cummings@cacr.caltech.edu>
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# Copyright (c) 2009 Alexander Pletzer <pletzer@txcorp.com>
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#
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# Copying and distribution of this file, with or without modification, are
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# permitted in any medium without royalty provided the copyright notice
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# and this notice are preserved.
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AC_DEFUN([AX_F90_MODULE_FLAG],[
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AC_CACHE_CHECK([fortran 90 modules inclusion flag],
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ax_cv_f90_modflag,
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[AC_LANG_PUSH(Fortran)
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i=0
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while test \( -f tmpdir_$i \) -o \( -d tmpdir_$i \) ; do
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i=`expr $i + 1`
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done
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mkdir tmpdir_$i
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cd tmpdir_$i
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AC_COMPILE_IFELSE([
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!234567
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module conftest_module
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contains
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subroutine conftest_routine
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write(*,'(a)') 'gotcha!'
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end subroutine conftest_routine
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end module conftest_module
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],[],[])
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cd ..
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ax_cv_f90_modflag="not found"
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for ax_flag in "-I " "-M" "-p"; do
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if test "$ax_cv_f90_modflag" = "not found" ; then
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ax_save_FCFLAGS="$FCFLAGS"
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FCFLAGS="$ax_save_FCFLAGS ${ax_flag}tmpdir_$i"
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AC_COMPILE_IFELSE([
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!234567
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program conftest_program
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use conftest_module
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call conftest_routine
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end program conftest_program
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],[ax_cv_f90_modflag="$ax_flag"],[])
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FCFLAGS="$ax_save_FCFLAGS"
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fi
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done
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rm -fr tmpdir_$i
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if test "$ax_cv_f90_modflag" = "not found" ; then
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AC_MSG_ERROR([unable to find compiler flag for modules inclusion])
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fi
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AC_LANG_POP(Fortran)
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])])
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