Undefined subroutine &main::open_quote called at /usr/local/bin/autom4te line 262

Question

Hi I try to install xdebug via pecl on macox (Big Sur 11.5.2) But I get error message

xdebug volodymyr$ pecl install xdebug
downloading xdebug-3.0.4.tgz ...
Starting to download xdebug-3.0.4.tgz (215,870 bytes)
.............................................done: 215,870 bytes
87 source files, building
running: phpize
Configuring for:
PHP Api Version:         20190902
Zend Module Api No:      20190902
Zend Extension Api No:   320190902
Undefined subroutine &main::open_quote called at /usr/local/bin/autom4te line 262.
ERROR: `phpize' failed

I update perl but it did help me (I can't catch if the open_quote is a part of perl) Also I didn't find any information in the inte.net that is related with open_quote function issue

I tried to install xdebug from source and get the same bug on the./phpize step

Resolve: Just reinstall autoconf automake libtool I run brew reinstall autoconf automake libtool After that I run brew link --force autoconf and it resolved the trouble

Answer 1

The error here comes from autom4te, not pecl or ./phpize . You need to update automake and autoconf , and/or related packages.