AX_F90_MODULE_EXTENSION
, 

2005年06月17日

Luc Maisonobe <luc@spaceroots.org>

AllPermissive
Copying and distribution of this file, with or without modification, are permitted in any medium without royalty provided the copyright notice and this notice are preserved. Users of this software should generally follow the principles of the MIT License includings its disclaimer.

cryp.to ac-archive's Fortran Support (released)

Find Fortran 90 modules file extension. The module extension is stored in the cached variable ax_f90_modext, or "unknown" if the extension cannot be found.

AC_DEFUN([AX_F90_MODULE_EXTENSION],[
AC_CACHE_CHECK([fortran 90 modules extension],
ax_f90_modext,
[AC_LANG_PUSH(Fortran)
i=0
while test \( -f tmpdir_$i \) -o \( -d tmpdir_$i \) ; do
 i=`expr $i + 1`
done
mkdir tmpdir_$i
cd tmpdir_$i
AC_COMPILE_IFELSE([module conftest_module
 contains
 subroutine conftest_routine
 write(*,'(a)') 'gotcha!'
 end subroutine conftest_routine
 end module conftest_module
 ],
 [ax_f90_modext=`ls | sed -n 's,conftest_module\.,,p'`
 if test x$ax_f90_modext = x ; then
dnl Some F90 compilers put module filename in uppercase letters
 ax_f90_modext=`ls | sed -n 's,CONFTEST_MODULE\.,,p'`
 if test x$ax_f90_modext = x ; then
 ax_f90_modext=unknown
 fi
 fi
 ],
 [ax_f90_modext=unknown])
cd ..
rm -fr tmpdir_$i
AC_LANG_POP(Fortran)
])])