o use predefined macros to test for sys/wait.h, time.h and sys/time.h
o search strcasecmp in libresolv only if strcasecmp and stricmp are not in libc
o use predefined macro AC_SYS_LARGEFILE to determine 64Bit I/O
o determine the alignment of long and double (ALIGNMENT,DOUBLE_ALIGN),
still need to write a test for FB_ALIGN!
o check for the availability in configure
o check for the number of arguments in configure
o synchronised config.h.in and MSVC pendant
NOTE: If you have problems on your system, don't change the source.
Extend the tests in configure.in!!!
