John W. Eaton wrote:
I'm using Autoconf 2.59:
devzero:450> autoconf --version autoconf (GNU Autoconf) 2.59 Written by David J. MacKenzie and Akim Demaille.
Copyright (C) 2003 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
Given the following input file
AC_INIT AC_PREREQ(2.50) AC_LANG_PUSH(Fortran 77) AC_TRY_LINK([],[],[]) AC_LANG_POP(Fortran 77)
Autoconf emits the following warning:
devzero:449> autoconf foo.in > foo.out foo.in:4: warning: AC_LANG_PROGRAM(Fortran): ignoring PROLOGUE: [] autoconf/lang.m4:224: AC_LANG_SOURCE is expanded from... autoconf/lang.m4:234: AC_LANG_PROGRAM is expanded from... autoconf/general.m4:2215: AC_LINK_IFELSE is expanded from... autoconf/general.m4:2223: AC_TRY_LINK is expanded from... foo.in:4: the top level
The INCLUDES argument ($1) of AC_TRY_LINK is empty, so I don't think I should see a warning about ignoring that as there is nothing to ignore. Is there any way to avoid this warning?
try:
... AC_LANG_PUSH([Fortran 77]) ... AC_LANG_POP([Fortran 77])
I don't use Fortran, nor do I claim to know the right parameters, I'm just interested to see if it acts differently with brackets.
Allan
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