Revision 4a5c179656b4be3a18cc4ab4e126d45bb6e4dcb8 authored by Leif Strand on 22 February 2006, 01:19:13 UTC, committed by Leif Strand on 22 February 2006, 01:19:13 UTC
proved to be unreliable for guessing PETSC_ARCH; parse $PETSC_DIR/bmake/petscconf instead. Also, avoid PETSC_*_BASIC variables... these are apparently for internal use only.
1 parent 9f0bd87
cit_fc_main.m4
# _CIT_FC_MAIN
# ------------
# Define {F77,FC}_MAIN to the name of the alternate main() function
# for use with the Fortran libraries (i.e., MAIN__ or whatever), or
# 'main' if no such alternate name is found.
#
# As of Autoconf 2.59, the macro AC_FC_MAIN does not work with ifort
# v9, because the macro assumes that 'main' will be resolved by
# FCLIBS, but FCLIBS does not include Intel's 'for_main.o'. This
# macro simply links with the Fortran compiler instead.
#
AC_DEFUN([_CIT_FC_MAIN],
[_AC_FORTRAN_ASSERT()dnl
AC_CACHE_CHECK([for alternate main to link with Fortran libraries],
ac_cv_[]_AC_LANG_ABBREV[]_main,
[ac_[]_AC_LANG_ABBREV[]_m_save_LIBS=$LIBS
LIBS="cfortran_test.$ac_objext $LIBS"
ac_fortran_dm_var=[]_AC_FC[]_DUMMY_MAIN
ac_cv_fortran_main="main" # default entry point name
for ac_func in MAIN__ MAIN_ __main MAIN _MAIN __MAIN main_ main__ _main; do
AC_LANG_PUSH(C)
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([@%:@ifdef FC_DUMMY_MAIN_EQ_F77
@%:@ undef F77_DUMMY_MAIN
@%:@ undef FC_DUMMY_MAIN
@%:@else
@%:@ undef $ac_fortran_dm_var
@%:@endif
@%:@define main $ac_func])],
[mv conftest.$ac_objext cfortran_test.$ac_objext],
[AC_MSG_FAILURE([cannot compile a simple C program])])
AC_LANG_POP(C)
AC_LINK_IFELSE([AC_LANG_SOURCE(
[ subroutine foobar()
return
end])], [ac_cv_fortran_main=$ac_func; break])
rm -f cfortran_test* conftest*
done
ac_cv_[]_AC_LANG_ABBREV[]_main=$ac_cv_fortran_main
rm -f cfortran_test* conftest*
LIBS=$ac_[]_AC_LANG_ABBREV[]_m_save_LIBS
])
AC_DEFINE_UNQUOTED([]_AC_FC[]_MAIN, $ac_cv_[]_AC_LANG_ABBREV[]_main,
[Define to alternate name for `main' routine that is
called from a `main' in the Fortran libraries.])
])# _CIT_FC_MAIN
# CIT_F77_MAIN
# ------------
AC_DEFUN([CIT_F77_MAIN],
[AC_REQUIRE([AC_F77_LIBRARY_LDFLAGS])dnl
AC_LANG_PUSH(Fortran 77)dnl
_AC_FC_MAIN
AC_LANG_POP(Fortran 77)dnl
])# CIT_F77_MAIN
# CIT_FC_MAIN
# -----------
AC_DEFUN([CIT_FC_MAIN],
[AC_REQUIRE([AC_FC_LIBRARY_LDFLAGS])dnl
AC_LANG_PUSH(Fortran)dnl
_CIT_FC_MAIN
AC_LANG_POP(Fortran)dnl
])# CIT_FC_MAIN
dnl end of file
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