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ax_cflags_irix_option

Synopsis

AX_CFLAGS_IRIX_OPTION (optionflag [,[shellvar][,[A][,[NA]]])

Description

AX_CFLAGS_IRIX_OPTION(-go_for_it) would show a message as like "checking CFLAGS for irix/cc -go_for_it ... 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_IRIX_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.

Source Code

Download the latest version of ax_cflags_irix_option.m4 or browse the macro’s revision history.

License

Copyright © 2008 Guido U. Draheim guidod@gmx.de

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 <http://www.gnu.org/licenses/>.

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.

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