Bug #79841 [NEW]: Syntax error in configure / unescaped "[]" in php.m4

From: rainer dot jung at kippdata dot de Operating system: Any using "configure" PHP version: 8.0.0alpha2 Package: *Compile Issues Bug Type: Bug Bug description:Syntax error in configure / unescaped "[]" in php.m4 Description: ------------ "configure" warns: ./configure: line 5571: -z: command not found The script contains wrong syntax: 5571 -z "$php_bison_version" && php_bison_version=0.0.0 ... 5676 -z "$php_re2c_version" && php_re2c_version=0.0.0 The root cause is in file build/php.m4 introduced in commit https://github.com/php/php-src/commit/fe2afef36fc78c267133ddd403f48e0ee799efbc (#78750, GH-5681): 1787 [ -z "$php_bison_version" ] && php_bison_version=0.0.0 ... 1852 [ -z "$php_re2c_version" ] && php_re2c_version=0.0.0 The square brackets need escaping in the m4 macro files. Directly below those lines a different syntax is used. Therefore I suggest to replace the two lines as follows: if test -z "$php_bison_version" ; then php_bison_version=0.0.0 fi and if test -z "$php_re2c_version" ; then php_re2c_version=0.0.0 fi Note that the problematic change also was back-ported to PHP 7.4 after 7.4.8 (https://github.com/php/php-src/pull/5681/commits/94c76e5e964aceb7e40fc6a15cf0ce247585c154). It should be fixed there as well before the next PHP 7.4 release. -- Edit bug report at https://bugs.php.net/bug.php?id=79841&edit=1 -- Fix committed: https://bugs.php.net/fix.php?id=79841&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=79841&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=79841&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=79841&r=needscript Try newer version: https://bugs.php.net/fix.php?id=79841&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=79841&r=support Expected behavior: https://bugs.php.net/fix.php?id=79841&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=79841&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=79841&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=79841&r=globals PHP version support discontinued: https://bugs.php.net/fix.php?id=79841&r=phptooold Daylight Savings: https://bugs.php.net/fix.php?id=79841&r=dst IIS Stability: https://bugs.php.net/fix.php?id=79841&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=79841&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=79841&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=79841&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=79841&r=mysqlcfg