./configure complaining about zlib dependency

[Richard H Lee <richard@xxxxxxxxxxxxxxx>]

php.install,

I'm trying to compile php 5.3.2 and I get an error about not having the 
right zlib version. I have zlib and zlib-devel installed at version 1.2.3 .

I get the error:

checking for ZLIB support... yes
checking if the location of ZLIB install directory is defined... no
checking for gzgets in -lz... no
configure: error: ZLIB extension requires zlib >= 1.0.9

The tail of the configure.log is:

configure:23803: checking for ZLIB support
configure:23850: checking if the location of ZLIB install directory is 
defined
configure:24296: checking for gzgets in -lz
configure:24315: gcc -o conftest -g -O2 -fvisibility=hidden 
-L/usr/local/lib -L/usr/kerberos/lib64 conftest.c -lz  -lpcre -lrt -lm 
-ldl -lnsl  -lxml2 -lz -lm -lgssapi_krb5 -lkrb5 -lk5crypto -lcom_err 
-lssl -lcrypto -ldl -lz 1>&5
/usr/bin/ld: skipping incompatible /usr/lib/libcom_err.so when searching 
for -lcom_err
/usr/bin/ld: skipping incompatible /usr/lib/libcom_err.a when searching 
for -lcom_err
/usr/bin/ld: cannot find -lcom_err
collect2: ld returned 1 exit status
configure: failed program was:
#line 24304 "configure"
#include "confdefs.h"
/* Override any gcc2 internal prototype to avoid an error.  */
/* We use char because int might match the return type of a gcc2
    builtin and then its argument prototype would still apply.  */
char gzgets();

int main() {
gzgets()
; return 0; }


My configure command from phpinfo is:

./configure --build=x86_64-redhat-linux-gnu 
--host=x86_64-redhat-linux-gnu --target=x86_64-redhat-linux-gnu 
--program-prefix= --prefix=/usr --exec-prefix=/usr --bindir=/usr/bin 
--sbindir=/usr/sbin --sysconfdir=/etc --datadir=/usr/share 
--includedir=/usr/include --libdir=/usr/lib64 --libexecdir=/usr/libexec 
--localstatedir=/var --sharedstatedir=/usr/com --mandir=/usr/share/man 
--infodir=/usr/share/info --cache-file=../config.cache 
--with-libdir=lib64 --with-config-file-path=/etc 
--with-config-file-scan-dir=/etc/php.d --disable-debug --with-pic 
--disable-rpath --without-pear --with-bz2 --with-curl 
--with-exec-dir=/usr/bin --with-freetype-dir=/usr --with-png-dir=/usr 
--enable-gd-native-ttf --without-gdbm --with-gettext --with-gmp 
--with-iconv --with-jpeg-dir=/usr --with-openssl --with-png 
--with-pspell --with-expat-dir=/usr --with-pcre-regex=/usr --with-zlib 
--with-layout=GNU --enable-exif --enable-ftp --enable-magic-quotes 
--enable-sockets --enable-sysvsem --enable-sysvshm --enable-sysvmsg 
--enable-track-vars --enable-trans-sid --enable-yp --enable-wddx 
--with-kerberos --enable-ucd-snmp-hack --with-unixODBC=shared,/usr 
--enable-memory-limit --enable-shmop --enable-calendar --enable-dbx 
--enable-dio --with-mime-magic=/usr/share/file/magic.mime 
--without-sqlite --with-libxml-dir=/usr --with-xml --with-system-tzdata 
--with-apxs2=/usr/sbin/apxs --without-mysql --without-gd --without-odbc 
--disable-dom --disable-dba --without-unixODBC --disable-pdo 
--disable-xmlreader --disable-xmlwriter

I get the feeling this is the same issue as

http://bugs.php.net/bug.php?id=27357

but I don't understand the solution:

>The missing iconv library comes from libxml2 setup.
>Try this:
>
># xml2-config --libs

Also, I had to compile xml2-config just before configuring php and the 
configure script seemed to find xml2-config fine.


Rich