On Thu, Jun 07, 2001 at 12:51:20AM +0200, Petter Reinholdtsen wrote:
> The autoconf macro SANE_CHECK_U_TYPES in sane-backends/acinclude.m4
> fails on Tru64 unix 5.1 when using Compaq C v6.3-28 (ie cc). The
> faulty line uses a compiler flags I've never seen before, and which is
> not recognized by Compaq C:
Oops. I wanted to include this header file. Don't know why I missed
that while testing.
> The '-isys/bitypes.h' is passed on to the linker, and it refuses to
> use it and fails. I suggest changing macro to set a flag
> (NEED_SYS_BITYPES_H parhaps), and the to include the file in
> sane/config.h when needed.
This won't work. Tru64 can't compile sane because it defines u_int8_t
and the like only in sys/bitypes.h (not in sys/types.h). These can't
be detected by AC_CHECK_TYPE. But sys/bitypes.h will be included by
netinet/in.h (abckend/net.c). The code in ac_include.m4 should check
for u_int8_t in sys/bitypes.h and if it's only there, also search in
sys/bitypes.h when doing the AC_CHECK_TYPE(). Also this file should be
included in every source file that may contain references to u_int8_t.
Maybe it works if we do something like
# include <sys/bitypes.h>
/* Define to unsigned char' if <sys/types.h> doesn't define. */
/* Define to unsigned short' if <sys/types.h> doesn't define. */
/* Define to unsigned int' if <sys/types.h> doesn't define. */
But I don't know which types are in sys/bitypes.h.
This problem was posted by a "Major A" on 2001-02-4 on sane-devel.
After I implemented the (wrong) test I asked him if it works but never
got any response.
If you have access to Tru64, could you try if this works?
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