Fails to compile with ZLib

[uptudev]

Description

Attempting to compile PHP with ZLib support (for Composer) results in compile time failure due to undefined symbols in the ./ext/zlib/zlib_arginfo.h file.

In file included from /home/uptu/opt/php-src-php-8.3.11/main/php.h:428,
                 from /home/uptu/opt/php-src-php-8.3.11/ext/zlib/zlib.c:25:
/home/uptu/opt/php-src-php-8.3.11/ext/zlib/zlib_arginfo.h: In function ‘register_zlib_symbols’:
/home/uptu/opt/php-src-php-8.3.11/ext/zlib/zlib_arginfo.h:222:46: error: ‘Z_BLOCK’ undeclared (first use in this function); did you mean ‘F_LOCK’?
  222 |         REGISTER_LONG_CONSTANT("ZLIB_BLOCK", Z_BLOCK, CONST_PERSISTENT);
      |                                              ^~~~~~~
/home/uptu/opt/php-src-php-8.3.11/Zend/zend_constants.h:51:105: note: in definition of macro ‘REGISTER_LONG_CONSTANT’
   51 | #define REGISTER_LONG_CONSTANT(name, lval, flags)  zend_register_long_constant((name), sizeof(name)-1, (lval), (flags), module_number)
      |                                                                                                         ^~~~
/home/uptu/opt/php-src-php-8.3.11/ext/zlib/zlib_arginfo.h:222:46: note: each undeclared identifier is reported only once for each function it appears in
  222 |         REGISTER_LONG_CONSTANT("ZLIB_BLOCK", Z_BLOCK, CONST_PERSISTENT);
      |                                              ^~~~~~~
/home/uptu/opt/php-src-php-8.3.11/Zend/zend_constants.h:51:105: note: in definition of macro ‘REGISTER_LONG_CONSTANT’
   51 | #define REGISTER_LONG_CONSTANT(name, lval, flags)  zend_register_long_constant((name), sizeof(name)-1, (lval), (flags), module_number)
      |                                                                                                         ^~~~
/home/uptu/opt/php-src-php-8.3.11/ext/zlib/zlib_arginfo.h:226:44: error: ‘Z_RLE’ undeclared (first use in this function)
  226 |         REGISTER_LONG_CONSTANT("ZLIB_RLE", Z_RLE, CONST_PERSISTENT);
      |                                            ^~~~~
/home/uptu/opt/php-src-php-8.3.11/Zend/zend_constants.h:51:105: note: in definition of macro ‘REGISTER_LONG_CONSTANT’
   51 | #define REGISTER_LONG_CONSTANT(name, lval, flags)  zend_register_long_constant((name), sizeof(name)-1, (lval), (flags), module_number)
      |                                                                                                         ^~~~
/home/uptu/opt/php-src-php-8.3.11/ext/zlib/zlib_arginfo.h:227:46: error: ‘Z_FIXED’ undeclared (first use in this function)
  227 |         REGISTER_LONG_CONSTANT("ZLIB_FIXED", Z_FIXED, CONST_PERSISTENT);
      |                                              ^~~~~~~
/home/uptu/opt/php-src-php-8.3.11/Zend/zend_constants.h:51:105: note: in definition of macro ‘REGISTER_LONG_CONSTANT’
   51 | #define REGISTER_LONG_CONSTANT(name, lval, flags)  zend_register_long_constant((name), sizeof(name)-1, (lval), (flags), module_number)
      |                                                                                                         ^~~~
/home/uptu/opt/php-src-php-8.3.11/ext/zlib/zlib_arginfo.h:230:47: error: ‘ZLIB_VERNUM’ undeclared (first use in this function); did you mean ‘ZLIB_VERSION’?
  230 |         REGISTER_LONG_CONSTANT("ZLIB_VERNUM", ZLIB_VERNUM, CONST_PERSISTENT);
      |                                               ^~~~~~~~~~~
/home/uptu/opt/php-src-php-8.3.11/Zend/zend_constants.h:51:105: note: in definition of macro ‘REGISTER_LONG_CONSTANT’
   51 | #define REGISTER_LONG_CONSTANT(name, lval, flags)  zend_register_long_constant((name), sizeof(name)-1, (lval), (flags), module_number)
      |                                                                                                         ^~~~
/home/uptu/opt/php-src-php-8.3.11/ext/zlib/zlib.c: In function ‘zif_inflate_add’:
/home/uptu/opt/php-src-php-8.3.11/ext/zlib/zlib.c:960:22: error: ‘Z_BLOCK’ undeclared (first use in this function); did you mean ‘F_LOCK’?
  960 |                 case Z_BLOCK:
      |                      ^~~~~~~
      |                      F_LOCK
/home/uptu/opt/php-src-php-8.3.11/ext/zlib/zlib.c: In function ‘zif_deflate_init’:
/home/uptu/opt/php-src-php-8.3.11/ext/zlib/zlib.c:1126:22: error: ‘Z_RLE’ undeclared (first use in this function)
 1126 |                 case Z_RLE:
      |                      ^~~~~
/home/uptu/opt/php-src-php-8.3.11/ext/zlib/zlib.c:1127:22: error: ‘Z_FIXED’ undeclared (first use in this function)
 1127 |                 case Z_FIXED:
      |                      ^~~~~~~
/home/uptu/opt/php-src-php-8.3.11/ext/zlib/zlib.c: In function ‘zif_deflate_add’:
/home/uptu/opt/php-src-php-8.3.11/ext/zlib/zlib.c:1193:22: error: ‘Z_BLOCK’ undeclared (first use in this function); did you mean ‘F_LOCK’?
 1193 |                 case Z_BLOCK:
      |                      ^~~~~~~
      |                      F_LOCK
make: *** [Makefile:783: ext/zlib/zlib.lo] Error 1

An up-to-date copy of ZLib is found in /usr/lib/libz.so, the typical location, and is also linked to in /lib/.

pacman -Q autoconf automake libtool re2c bison zlib:

autoconf 2.72-1
automake 1.17-1
libtool 2.5.2+r1+g2fe3a3e2-1
re2c 3.1-2
bison 3.8.2-7
zlib 1:1.3.1-2

PHP Version

PHP 8.3.11

Operating System

Arch Linux (Linux 6.10.8-arch1-1)

[uptudev]

Removing the --with-zlib flag in the ./configure call results in successful compilation, but results in certain features being missing.

[petk]

Hello, thanks for reporting bugs. I've just checked PHP 8.3 dev branch and PHP 8.3.11 on Arch Linux and I can't reproduce this one. Any idea how this could be reproduced? Can you retry with fresh PHP 8.3 downloaded from php.net or try if PHP 8.4 (current Git master branch works)? I've tried the arch-dev through distrobox.

From some other projects this might be an issue with some old zlib version used. Perhaps the header file /usr/include/zlib.h is belonging to some old zlib version?

The header /usr/include/zlib.h should have something like this header on top of it:

/* zlib.h -- interface of the 'zlib' general purpose compression library
  version 1.3.1, January 22nd, 2024

[uptudev]

This presents itself with both the PHP.net version of 8.3.11 (verified the signature) and the GitHub 8.3.11 release.

My mind is telling me I'm missing some sort of dev library for ZLib, but I have it installed for sure.

Currently afk; will report back in a few minutes after checking on that header in include

[uptudev]

/usr/include/zlib.h:

/* zlib.h -- interface of the 'zlib' general purpose compression library
   2   │   version 1.3.1, January 22nd, 2024
   3   │
   4   │   Copyright (C) 1995-2024 Jean-loup Gailly and Mark Adler

[...]
*/

Seems normal to me. Let me try one more time linking directly to the header file and see if it fixes things.

[uptudev]

Still fails with the same undefined symbols but I am terrible at reading the ./configure options.

Is there a way to directly link the header file where it's defined during configuration? Something is probably just wrong with my configure scripting tbh lol

Current configuration call is ./configure --with-openssl --with-system-ciphers --with-zlib --enable-mbstring

[uptudev]

Possible culprit found: locate found a duplicate zlib.h in my /usr/local/include which when diffed, shows it is version 1.1.4 from 2002.

Deleting and recompiling; wish me luck!

[uptudev]

Compiled successfully; apologies for the PEBKAC issue!

Have a great day, and thank you for pointing me towards the /usr/include/zlib.h file. It helped greatly!

[petk]

Ok, great. Ah, yes. The /usr/local/include might be included before the compiler's default from /usr/include path because of the -I flag somewhere done in configure step.