build/autoconf/hotfixes.m4@deefc01c0e14 (annotated)
build/autoconf/hotfixes.m4
Thu, 15 Jan 2015 21:03:48 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 15 Jan 2015 21:03:48 +0100
- branch
- TOR_BUG_9701
- changeset 11
- deefc01c0e14
- permissions
- -rw-r--r--
Integrate friendly tips from Tor colleagues to make (or not) 4.5 alpha 3;
This includes removal of overloaded (but unused) methods, and addition of
a overlooked call to DataStruct::SetData(nsISupports, uint32_t, bool.)
| michael@0 | 1 | dnl This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 2 | dnl dnl License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 3 | dnl dnl file, You can obtain one at http://mozilla.org/MPL/2.0/. |
| michael@0 | 4 | |
| michael@0 | 5 | dnl Set of hotfixes to address issues in autoconf 2.13 |
| michael@0 | 6 | |
| michael@0 | 7 | dnl Divert AC_CHECK_FUNC so that the #includes it uses can't interfere |
| michael@0 | 8 | dnl with the function it tests. |
| michael@0 | 9 | dnl So, when testing e.g. posix_memalign, any #include that AC_CHECK_FUNC |
| michael@0 | 10 | dnl prints is replaced with: |
| michael@0 | 11 | dnl #define posix_memalign innocuous_posix_memalign |
| michael@0 | 12 | dnl #include "theinclude" |
| michael@0 | 13 | dnl #undef posix_memalign |
| michael@0 | 14 | dnl This avoids double declaration of that function when the header normally |
| michael@0 | 15 | dnl declares it, while the test itself is just expecting the function not to be |
| michael@0 | 16 | dnl declared at all, and declares it differently (which doesn't matter for the |
| michael@0 | 17 | dnl test itself). |
| michael@0 | 18 | dnl More recent versions of autoconf are essentially doing this. |
| michael@0 | 19 | define([ac_cv_func_], [ac_cv_func2_])dnl |
| michael@0 | 20 | define([_AC_CHECK_FUNC],defn([AC_CHECK_FUNC]))dnl |
| michael@0 | 21 | define([AC_CHECK_FUNC], [dnl |
| michael@0 | 22 | patsubst(_AC_CHECK_FUNC($@), [#include.*$], [#define $1 innocuous_$1 |
| michael@0 | 23 | \& |
| michael@0 | 24 | #undef $1])])dnl |
