autconf changes, bootstrap broken on FreeBSD

[Gerald Pfeifer <pfeifer at dbai dot tuwien dot ac dot at>]

I'm afraid there are two issues with yesterday's autoconf changes:
contrib/gcc_update, and bootstrap failures on FreeBSD.

First, contrib/gcc_update still touches gcc./configure.in, cf. the
following log from my nightly builder:

  P libjava/ChangeLog
  P libjava/java/util/Date.java
  P libstdc++-v3/include/bits/c++config
  P ChangeLog
  P Makefile.in
  P Makefile.tpl
  P configure
  P configure.in
  P contrib/ChangeLog
  P contrib/gcc_update
  P gcc/ChangeLog
  P gcc/ChangeLog.10
  P gcc/Makefile.in
  P gcc/aclocal.m4
  P gcc/configure
  U gcc/configure.ac
  cvs server: gcc/configure.in is no longer in the repository
  P gcc/function.c
  P gcc/function.h
  P gcc/gcse.c
  P gcc/graph.c
  P gcc/version.c
  P gcc/config/mips/linux.h
  P gcc/config/mips/mips.c
  P gcc/config/mips/mips.h
  P gcc/config/mips/mips.md
  P gcc/config/mips/netbsd.h
  P gcc/config/mips/windiss.h
  P gcc/cp/ChangeLog
  P gcc/cp/parser.c
  P gcc/doc/install.texi
  P maintainer-scripts/ChangeLog
  P maintainer-scripts/update_web_docs
  Touching gcc/cstamp-h.in...
  Touching gcc/config.in...               <----
  Touching Makefile.in...
  Touching configure...

And second, bootstrap is now broken on FreeBSD:

  gmake[2]: Entering directory `/files/pfeifer/OBJ-0104-0339/gcc'
  stage1/xgcc -Bstage1/ -B/sw/gcc-current/i586-unknown-freebsd4.8/bin/ -c   -g -O2 -DIN_GCC   -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -pedantic -Wno-long-long -Wold-style-definition -Werror -fno-common   -DHAVE_CONFIG_H -DGENERATOR_FILE    -I. -I. -I/sw/test/gcc/cvs/gcc -I/sw/test/gcc/cvs/gcc/. -I/sw/test/gcc/cvs/gcc/../include -I../intl /sw/test/gcc/cvs/gcc/genmodes.c -o genmodes.o
  In file included from /sw/test/gcc/cvs/gcc/system.h:318,
                   from /sw/test/gcc/cvs/gcc/genmodes.c:23:
  /usr/include/malloc.h:2:2: #warning "this file includes <malloc.h> which is deprecated, use <stdlib.h> instead"
  gmake[2]: *** [genmodes.o] Error 1
  gmake[2]: Leaving directory `/files/pfeifer/OBJ-0104-0339/gcc'
  gmake[1]: *** [stage2_build] Error 2

Gerald