When using mySQL functions - php4 crashes. The script ran fine under php3 - same compiling options as php4. 

Program received signal SIGSEGV, Segmentation fault.
0x400c3bf8 in chunk_free (ar_ptr=0x401519c0, p=0x817e520) at malloc.c:3030
3030    malloc.c: No such file or directory.
(gdb) backtrace
#0  0x400c3bf8 in chunk_free (ar_ptr=0x401519c0, p=0x817e520) at malloc.c:3030
#1  0x400c3a8f in __libc_free (mem=0x817e528) at malloc.c:2942
#2  0x401870cd in shutdown_memory_manager (silent=0, clean_cache=0)
    at zend_alloc.c:413
#3  0x4017a32b in php_request_shutdown (dummy=0x0) at main.c:718
#4  0x401aac2d in php_apache_request_shutdown (dummy=0x0) at mod_php4.c:301
#5  0x8077fda in run_cleanups ()
#6  0x80767d4 in ap_clear_pool ()
#7  0x807684d in ap_destroy_pool ()
#8  0x80767c0 in ap_clear_pool ()
#9  0x80858c8 in child_main ()
#10 0x8085e58 in make_child ()
#11 0x8085fb3 in startup_children ()
#12 0x80865c8 in standalone_main ()
#13 0x8086d1b in main ()
#14 0x4008444b in __libc_start_main (main=0x8086a00 , argc=2, 
    argv=0xbffff9c4, init=0x805b95c <_init>, fini=0x80e3dc0 <_fini>, 
    rtld_fini=0x4000a128 <_dl_fini>, stack_end=0xbffff9bc)
    at ../sysdeps/generic/libc-start.c:78
(gdb) quit