I'm attempting to build some PECL modules on fully updated CentOS 4.2 system. Preferably pack them into nice RPM packages. However, seems I'm missing something. For example, this is what I get for sqlite module: $ pear makerpm SQLite-1.0.3.tgz `phpize' failed The php-devel package is installed (so I do have phpize command). It's just that it is failing. If I unpack the files into directory, and do "pear build" or "pear install", I'm getting a bit more verbose error: $ pear build running: phpize configure.in:9: warning: underquoted definition of PHP_WITH_PHP_CONFIG run info '(automake)Extending aclocal' or see http://sources.redhat.com/automake/automake.html#Extending-aclocal configure.in:32: warning: underquoted definition of PHP_EXT_BUILDDIR configure.in:33: warning: underquoted definition of PHP_EXT_DIR configure.in:34: warning: underquoted definition of PHP_EXT_SRCDIR configure.in:35: warning: underquoted definition of PHP_ALWAYS_SHARED acinclude.m4:19: warning: underquoted definition of PHP_PROG_RE2C configure.in:65: error: possibly undefined macro: AC_PROG_LIBTOOL If this token and others are legitimate, please use m4_pattern_allow. See the Autoconf documentation. `phpize' failed I do remember being able to build and install couple of PECL modules some time ago on different CentOS 4.2 system. Howerver, I'm failing to see why the builds are now failing. The two systems look more or less the same (except hardware, the old one was i686, the new one is i586). I'm not an automake/autoconf expert, the above message looks to me more or less like names of Spanish vilages (in other words, I'm completely culeless here). While on the topic of PECL/PEAR, packaging PEAR modules into RPMs kinda works. The "pear makerpm" produces unusable spec files most of the time, but with a bit of editing of those spec files, I got my RPMs. Mostly documentation, "ugly" package names, and by default files get installed outside of PHP/Pear search path (easy to fix manually in spec file). Known bug in pear or am I doing something awfully wrong? Anyhow, any help would be geately appriciated.