problems building gdb

[ian at airs.com (ian at airs.com)]

   Date: 	Fri, 18 Sep 1998 14:33:52 -0700
   From: "erik.ivanenko" <erik.ivanenko at utoronto.ca>

   Using the bit_scripts, I have encountered the following problem:

   gmake[1]: Entering directory
   `/home/cross-19980908/tools/build-i386-gdb/mmalloc'
   gcc -c -O2 -g -DHAVE_VALLOC=1 -DHAVE_GETPAGESIZE=1 -DHAVE_MMAP=1
   -DHAVE_LIMITS_H=1 -DHAVE_STDDEF_H=1  -I.
   -I../../gdb-4.17/mmalloc/../include ../../gdb-4.17/mmalloc/mm.c
   In file included from /usr/include/fcntl.h:81,
		    from ../../gdb-4.17/mmalloc/mmap-sup.c:26,
		    from ../../gdb-4.17/mmalloc/mm.c:33:
   /usr/include/unistd.h:766: conflicting types for `getpagesize'
   ../../gdb-4.17/mmalloc/mvalloc.c:27: previous declaration of
   `getpagesize'
   In file included from ../../gdb-4.17/mmalloc/mm.c:33:
   ../../gdb-4.17/mmalloc/mmap-sup.c:41: conflicting types for
   `getpagesize'
   /usr/include/unistd.h:766: previous declaration of `getpagesize'
   gmake[1]: *** [mm.o] Error 1
   gmake[1]: Leaving directory
   `/home/cross-19980908/tools/build-i386-gdb/mmalloc'
   gmake: *** [all-mmalloc] Error 2
   ERROR: **** FAILED **** build

   Note that files are being included from the host /usr/include
   directory.  This can't be right.

It is right, though.  gdb is built for the host, not the target.  You
aren't going to run gdb on your target board, you're going to run it
on your Unix system.

You didn't mention your host, but whatever it is the quick fix would
be to just remove the conflicting declarations of getpagesize from
mmalloc/mvalloc.c and mmalloc/mmap-sup.c.

Ian