Problems compiling with libXpm or libX11

Hi, I'm trying to configure php with xpm ( --with-xpm-dir=/usr/X11R6 ), and I keep getting this error.... configure: error: Problem with libXpm.(a|so) or libX11.(a|so). Please check config.log for more information. config.log has this... configure:35198: checking for the location of libXpm configure:35216: result: /usr/X11R6 then further down, this..... configure:36062: checking for XpmFreeXpmImage in -lXpm configure:36093: gcc -o conftest -g -O2

      -L/usr/X11R6/lib -lX11
      -Wl,-rpath,/usr/local/ssl/lib -L/usr/local/ssl/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib -Wl,-rpath,/usr/kerberos/lib -L/usr/kerberos/lib conftest.c -lXpm  -lpng -lz -ljpeg -lcurl -lbz2 -lz -lssl -lcrypto -lresolv -lm -ldl -lnsl  -lcurl -lz -lssl -lcrypto -ldl -lssl -lcrypto -lresolv -lgssapi_krb5 -lkrb5 -lk5crypto -lcom_err -ldl -lz -lz >&5

/usr/X11R6/lib/libXpm.so: undefined reference to `__ctype_b' /usr/X11R6/lib/libXpm.so: undefined reference to `_xstat' /usr/X11R6/lib/libXpm.so: undefined reference to `_fxstat' /usr/X11R6/lib/libXpm.so: undefined reference to `__ctype_tolower' collect2: ld returned 1 exit status configure:36096: $? = 1 configure: failed program was: | #line 36069 "configure" | /* confdefs.h. */ Red Hat 9 system, PHP 4.3.2, and apache 1.3.27. I installed the libX binaries from sunsite.unc.edu ( libXpm.3.4f-ELF.tar.gz ). Can somone shed some light on this problem?