# =========================================================================== # http://www.gnu.org/software/autoconf-archive/ax_cflags_aix_option.html # =========================================================================== # # SYNOPSIS # # AX_CFLAGS_AIX_OPTION (optionflag [,[shellvar][,[A][,[NA]]]) # # DESCRIPTION # # AX_CFLAGS_AIX_OPTION(-qubicle) would show a message as like "checking # CFLAGS for aix/cc -qubicle ... yes" and adds the optionflag to CFLAGS if # it is understood. You can override the shellvar-default of CFLAGS of # course. The order of arguments stems from the explicit macros like # AX_CFLAGS_WARN_ALL. # # The cousin AX_CXXFLAGS_AIX_OPTION would check for an option to add to # CXXFLAGS - and it uses the autoconf setup for C++ instead of C (since it # is possible to use different compilers for C and C++). # # The macro is a lot simpler than any special AX_CFLAGS_* macro (or # ax_cxx_rtti.m4 macro) but allows to check for arbitrary options. # However, if you use this macro in a few places, it would be great if you # would make up a new function-macro and submit it to the ac-archive. # # - $1 option-to-check-for : required ("-option" as non-value) # - $2 shell-variable-to-add-to : CFLAGS (or CXXFLAGS in the other case) # - $3 action-if-found : add value to shellvariable # - $4 action-if-not-found : nothing # # note: in earlier versions, $1-$2 were swapped. We try to detect the # situation and accept a $2=~/-/ as being the old option-to-check-for. # # see also: AX_CFLAGS_GCC_OPTION for the widely used original variant. # # LICENSE # # Copyright (c) 2008 Guido U. Draheim # # This program is free software; you can redistribute it and/or modify it # under the terms of the GNU General Public License as published by the # Free Software Foundation; either version 3 of the License, or (at your # option) any later version. # # This program is distributed in the hope that it will be useful, but # WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General # Public License for more details. # # You should have received a copy of the GNU General Public License along # with this program. If not, see . # # As a special exception, the respective Autoconf Macro's copyright owner # gives unlimited permission to copy, distribute and modify the configure # scripts that are the output of Autoconf when processing the Macro. You # need not follow the terms of the GNU General Public License when using # or distributing such scripts, even though portions of the text of the # Macro appear in them. The GNU General Public License (GPL) does govern # all other use of the material that constitutes the Autoconf Macro. # # This special exception to the GPL applies to versions of the Autoconf # Macro released by the Autoconf Archive. When you make and distribute a # modified version of the Autoconf Macro, you may extend this special # exception to the GPL to apply to your modified version as well. #serial 13 AC_DEFUN([AX_FLAGS_AIX_OPTION_PRIVATE], [dnl AX_CHECK_COMPILE_FLAG([$1], [flag_ok="yes"], [flag_ok="no"], [-qlanglvl=ansi -qsrcmsg]) AS_CASE([".$flag_ok"], [.ok|.ok,*], [$3], [.|.no|.no,*], [$4], [m4_default($3,[AX_APPEND_FLAG([$1],[$2])])]) ]) AC_DEFUN([AX_CFLAGS_AIX_OPTION],[ AC_LANG_PUSH([C]) AX_FLAGS_AIX_OPTION_PRIVATE(ifelse(m4_bregexp([$2],[-]),-1,[[$1],[$2]],[[$2],[$1]]),[$3],[$4]) AC_LANG_POP ]) AC_DEFUN([AX_CXXFLAGS_AIX_OPTION],[ AC_LANG_PUSH([C++]) AX_FLAGS_AIX_OPTION_PRIVATE(ifelse(m4_bregexp([$2],[-]),-1,[[$1],[$2]],[[$2],[$1]]),[$3],[$4]) AC_LANG_POP ])