compile problem 4.0.6

Hello, I configured php4.0.6 with ./configure --with-mysql=/usr/local/mysql/ --with-apxs=/usr/local/apache/bin/apxs --enable-force-cgi-redirect (output looked fine) and the make fails with /bin/sh /root/sw/php-4.0.6/libtool --silent --mode=compile gcc -I. -I/root/sw/php-4.0.6/main -I/root/sw/php-4.0.6/main -I/root/sw/php-4.0.6 -I/usr/local/apache/include -I/root/sw/php-4.0.6/Zend -I/usr/local/mysql//include/mysql -I/root/sw/php-4.0.6/ext/xml/expat/xmltok -I/root/sw/php-4.0.6/ext/xml/expat/xmlparse -I/root/sw/php-4.0.6/TSRM -DLINUX=22 -DUSE_HSREGEX -DUSE_EXPAT -DSUPPORT_UTF8 -DXML_BYTE_ORDER=12 -g -O2 -c rfc1867.c /root/sw/php-4.0.6/libtool: Can't reopen pipe to command substitution (fd 7): No child processes /root/sw/php-4.0.6/libtool: -I.: command not found make[2]: *** [rfc1867.lo] Error 1 make[2]: Leaving directory `/root/sw/php-4.0.6/main' make[1]: *** [all-recursive] Error 1 make[1]: Leaving directory `/root/sw/php-4.0.6/main' make: *** [all-recursive] Error 1 RedHat Linux 6.2; Apache 1.3.20. What I found in config.log: configure:5888: sys/sysexits.h: No such file or directory configure: failed program was: #line 5887 "configure" ----------------- configure:5888: sys/varargs.h: No such file or directory configure: failed program was: #line 5887 "configure" #include "confdefs.h" -------------------- configure:5888: unix.h: No such file or directory configure: failed program was: #line 5887 "configure" ----------------- configure:6666: gcc -o conftest -g -O2 -DLINUX=22 -DUSE_HSREGEX -DUSE_EXPAT conftest.c -lresolv -lm -ldl -lnsl -lresolv 1>&5 /tmp/ccVsZpUo.o: In function `main': /root/sw/php-4.0.6/configure:6660: undefined reference to `std_syslog' collect2: ld returned 1 exit status configure: failed program was: #line 6643 "configure" ----------------- configure:6755: gcc -o conftest -g -O2 -DLINUX=22 -DUSE_HSREGEX -DUSE_EXPAT conftest.c -lresolv -lm -ldl -lnsl -lresolv 1>&5 /tmp/ccW6nZrM.o: In function `main': /root/sw/php-4.0.6/configure:6749: undefined reference to `strlcat' collect2: ld returned 1 exit status configure: failed program was: #line 6732 "configure" ----------------- configure:6727: checking for strlcpy configure:6755: gcc -o conftest -g -O2 -DLINUX=22 -DUSE_HSREGEX -DUSE_EXPAT conftest.c -lresolv -lm -ldl -lnsl -lresolv 1>&5 /tmp/cckSpuZn.o: In function `main': /root/sw/php-4.0.6/configure:6749: undefined reference to `strlcpy' collect2: ld returned 1 exit status configure: failed program was: #line 6732 "configure" ----------------- Tell me if I should post the whole file. Any hints? Regards, Holger