[Converted from Gnats 2041]

Hi,
  I am trying to build a gdb 6.3 that can run on a mips-linux target; using crosscompile toolchain on x86. 
'configure' fails in readline subdirectory; with this output:
checking for mbsrtowcs... yes
checking for wcwidth... yes
checking for mbstate_t... configure: error: cannot run test program while cross compiling
See `config.log' for more details.
make: *** [configure-readline] Error 1

In readline/configure I found this gem:
echo "$as_me:$LINENO: checking for mbstate_t" >&5
echo $ECHO_N "checking for mbstate_t... $ECHO_C" >&6
if test "${bash_cv_have_mbstate_t+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  if test "$cross_compiling" = yes; then
  { { echo "$as_me:$LINENO: error: cannot run test program while cross compiling
See \`config.log' for more details." >&5
echo "$as_me: error: cannot run test program while cross compiling
See \`config.log' for more details." >&2;}
   { (exit 1); exit 1; }; }
else
  cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
....

Does this mean that readline is never meant to be cross-compiled? In other places, cross-compiling lets you off with a warning only.

Release:
6.3

Environment:
host=target=mips-linux, build=i386-linux