Description:
------------
I think that this bug is low priority.

I tried to uprade from php 5.0 to 5.1 on web server where I don't have root privilegs.

I faced build failure:
/home/customers/antin/php5.1/php-5.1.0/main/reentrancy.c: In function `php_readdir_r':
/home/customers/antin/php5.1/php-5.1.0/main/reentrancy.c:143: too few arguments to function `readdir_r'
make: *** [main/reentrancy.lo] Error 1


The problem seems to be that systems is quite old. I think that makes bug low priority or irrelevant.
Reading specs from /usr/lib/gcc-lib/i386-redhat-linux/2.96/specs
gcc version 2.96 20000731 (Red Hat Linux 7.3 2.96-113)


I found that actual problem is that HAVE_OLD_READDIR_R is set even thought the system doesn't include correct version. It builds well when I change source code so that pre-complier choose else branch in reentrancy.c.

I tried to check the configuration script but I'm not familiar with autoconf style so I cannot say what is the exact problem in this system. 

configure:
'./configure' \
'--enable-sysvshm' \
'--enable-pcntl' \
'--with-gd' \
'--enable-gd-native-ttf' \
'--with-jpeg-dir' \
'--with-png-dir' \
'--enable-sysvsem' \
'--with-zlib' \
'--prefix=~/php5.1' \
'--enable-discard-path' \
'--with-bz2' \
'--with-libxml-dir=~/libxml2/' \
'--with-freetype-dir=~/freetype' \
'--with-ttf' \

I can build the PHP5.1 but I just wanted to inform that there maybe problems with older systems.