I'm running a RedHat 4.2 system with extensive upgrades to the kernel (2.2.10), and GCC (2.95), and running 
glibc 1, and the mysql 3.22.25 binary distribution installed on my machine. When I try to compile, I get no warning messages at all up until the link stage, at which point I get:

gcc -c  -I./os/unix -I./include   -DLINUX=2 -DUSE_HSREGEX `./apaci` buildmark.c
gcc  -DLINUX=2 -DUSE_HSREGEX `./apaci`    \
      -o httpd buildmark.o modules.o modules/standard/libstandard.a modules/php3/libphp3.a main/libmain.a ./os/unix/libos.a ap/libap.a regex/libregex.a  -Wl,-rpath,/usr/lib/mysql  -L/usr/lib/mysql -lmysqlclient -Lmodules/php3 -L../modules/php3 -L../../modules/php3 -lmodphp3                        -lpam -lm -ldl   -lm -lgdbm
/usr/lib/mysql/libmysqlclient.a(mf_format.o): In function `fn_format':
mf_format.o(.text+0x201): undefined reference to `__lxstat'
collect2: ld returned 1 exit status
make[2]: *** [target_static] Error 1
make[2]: Leaving directory `/usr/src/apache_1.3.6/src'
make[1]: *** [build-std] Error 2
make[1]: Leaving directory `/usr/src/apache_1.3.6'
make: *** [build] Error 2
[root@ganges apache_1.3.6]#