debug.log from the configure script error.. need help!!

[Rahul <rj3365@xxxxxxxxx>]

CONFIGURE:   './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-expat-dir=/usr'
'--with-pcre-regex' '--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-gd' '--disable-dom'
'--disable-dba' '--without-unixODBC' '--disable-pdo'
'--disable-xmlreader' '--disable-xmlwriter'
'--with-oci8=instantclient' '--with-mysql' '--with-ldap'
CC:         gcc
CFLAGS:     -I/usr/include -g -O2
CPPFLAGS:
CXX:
CXXFLAGS:
INCLUDES:    -I/usr/include/libxml2 -I/usr/kerberos/include
-I/home/qcomd/downloads/php-5.2.9/ext/date/lib -I/usr/include/mysql
-I/usr/include/oracle/10.2.0.3/client64
LDFLAGS:    -L/usr/lib64  -L/usr/kerberos/lib64 -L/usr/lib64/mysql
-L/usr/lib/oracle/10.2.0.3/client64/lib
LIBS:       -lmysqlclient -lldap -llber -lgmp -lcurl -lbz2 -lz
-lresolv -lm -ldl -lnsl  -lxml2 -lz -lm -lgssapi_krb5 -lkrb5
-lk5crypto -lcom_err -lssl -lcrypto -ldl -lz -lcurl -ldl -lgssapi_krb5
-lkrb5 -lk5crypto -lcom_err -lidn -lssl -lcrypto -lz -lssl -lcrypto
-ldl -lz -lclntsh -lxml2 -lz -lm
DLIBS:
SAPI:       apache2handler
PHP_RPATHS:  /usr/kerberos/lib64 /usr/lib64/mysql
/usr/lib/oracle/10.2.0.3/client64/lib
uname -a:   Linux qc2portal1 2.6.18-128.1.6.el5 #1 SMP Tue Mar 24
12:05:57 EDT 2009 x86_64 x86_64 x86_64 GNU/Linux

gcc -o conftest -I/usr/include -g -O2  -L/usr/lib64
-L/usr/kerberos/lib64 -L/usr/lib64/mysql
-L/usr/lib/oracle/10.2.0.3/client64/lib conftest.c -lmysqlclient
-lldap -llber -lgmp -lcurl -lbz2 -lz -lresolv -lm -ldl -lnsl  -lxml2
-lz -lm -lgssapi_krb5 -lkrb5 -lk5crypto -lcom_err -lssl -lcrypto -ldl
-lz -lcurl -ldl -lgssapi_krb5 -lkrb5 -lk5crypto -lcom_err -lidn -lssl
-lcrypto -lz -lssl -lcrypto -ldl -lz -lclntsh -lxml2 -lz -lm 1>&5
conftest.c: In function 'main':
conftest.c:3: warning: incompatible implicit declaration of built-in
function 'exit'