Re: autoconf 2.60+ support

On 05/15/2011 02:45 AM, Rasmus Lerdorf wrote: > As you may have noticed, I have fixed the autoconf stuff to work with autoconf 2.60+ in PHP_5_4 > and trunk. In the past I have tried to make it support both <2.60 and >=2.60 at the same time > and it never worked. autoconf 2.60 was released in June 2006, so > nearly 5 years ago and it is in every modern distro at this point. Most distros also have the > ability to run older versions concurrently so you should be able to build 5.3 and 5.4 on the same > system. On Ubuntu I have to set PHP_AUTOCONF to autoconf2.59 > before running ./buildconf in 5.3, for example. With 5.4 you should no longer need to do that. > > Let me know if there are any autoconf-related problems and we will get them tracked down. > > -Rasmus > Rasmus, We should make PHP 5.4 support autoconf 2.59 by not calling AC_PRESERVE_HELP_ORDER when using autoconf < 2.60. This would allow PECL extensions to install on Oracle Linux 5.6 & RHEL 5.6 using the standard tool chain. These OSes have autoconf 2.59 without AC_PRESERVE_HELP_ORDER (i.e. autoconf doesn't appear to be 2.59c, see [1]). Currently 'pecl install abc' immediately fails. Anyone on more up to date distros (e.g. Oracle Linux 6.1) will have a autoconf 2.60+ which will support AC_PRESERVE_HELP_ORDER. So there is no functionality lost for most people. On PHP_5_4 I changed the build checks to accept 2.59+ and added ifdefs similar to http://svn.php.net/viewvc/php/php-src/branches/PHP_5_3/configure.in?r1=291410&r2=291409&pathrev=291410 The build seems fine both with the system autoconf 2.59 and a hand built 2.68. There are 'configure --help' order differences between the two, and some new options given when using autoconf 2.68. I think this is acceptable for this edge case. A patch for PHP_5_4 is attached. It drops the overall autoconf requirement to 2.59, allowing both PECL installs and buildconf to work. Chris References: [1] http://lists.gnu.org/archive/html/autoconf/2006-04/msg00085.html -- Email: christopher.jones@oracle.com Tel: +1 650 506 8630 Blog: http://blogs.oracle.com/opal/

Index: scripts/phpize.m4 =================================================================== --- scripts/phpize.m4 (revision 311741) +++ scripts/phpize.m4 (working copy) @@ -1,8 +1,8 @@ dnl This file becomes configure.in for self-contained extensions. -AC_PREREQ(2.60) +AC_PREREQ(2.59) AC_INIT(config.m4) -AC_PRESERVE_HELP_ORDER +ifdef([AC_PRESERVE_HELP_ORDER], [AC_PRESERVE_HELP_ORDER], []) PHP_CONFIG_NICE(config.nice) Index: configure.in =================================================================== --- configure.in (revision 311741) +++ configure.in (working copy) @@ -8,9 +8,9 @@ dnl Basic autoconf + automake initialization, generation of config.nice. dnl ------------------------------------------------------------------------- -AC_PREREQ(2.60) +AC_PREREQ(2.59) AC_INIT(README.SVN-RULES) -AC_PRESERVE_HELP_ORDER +ifdef([AC_PRESERVE_HELP_ORDER], [AC_PRESERVE_HELP_ORDER], []) PHP_CONFIG_NICE(config.nice) Index: build/buildcheck.sh =================================================================== --- build/buildcheck.sh (revision 311741) +++ build/buildcheck.sh (working copy) @@ -28,18 +28,18 @@ PHP_AUTOCONF='autoconf' fi -# autoconf 2.60 or newer +# autoconf 2.59 or newer ac_version=`$PHP_AUTOCONF --version 2>/dev/null|head -n 1|sed -e 's/^[^0-9]*//' -e 's/[a-z]* *$//'` if test -z "$ac_version"; then echo "buildconf: autoconf not found." -echo " You need autoconf version 2.60 or newer installed" +echo " You need autoconf version 2.59 or newer installed" echo " to build PHP from SVN." exit 1 fi IFS=.; set $ac_version; IFS=' ' -if test "$1" = "2" -a "$2" -lt "60" || test "$1" -lt "2"; then +if test "$1" = "2" -a "$2" -lt "59" || test "$1" -lt "2"; then echo "buildconf: autoconf version $ac_version found." -echo " You need autoconf version 2.60 or newer installed" +echo " You need autoconf version 2.59 or newer installed" echo " to build PHP from SVN." exit 1 else