paer broken?

[Colin Watson <cjwatson@debian.org>]

I was trying to build the most recent version of spectemu (currently
stuck in queue/new) on paer, as it's a contrib package so won't be
autobuilt for a while. The build kept segfaulting with things like this:

checking for X... libraries /usr/X11R6/lib, headers /usr/X11R6/include
checking for XOpenDisplay in -lX11... Segmentation fault

Here's some output from a couple of runs of 'sh -x ./configure
--prefix=/usr --datadir=/etc --mandir=\${prefix}/share/man
--with-readline':

+ LIBS=-lXext  -lX11  
+ cat
+ eval echo configure:1797: '"${CC-cc}' -o conftest '$CFLAGS' '$CPPFLAGS' '$LDFLAGS' 'conftest.$ac_ext' '$LIBS' '1>&5"'
++ echo configure:1797: 'gcc -o conftest -Wall -O3 -fomit-frame-pointer -funroll-loops   -L/usr/X11R6/lib conftest.c -lXext  -lX11   1>&5'
+ test -s conftest
+ rm -rf conftest conftest.c
Segmentation fault

+ LIBS=-lX11  
++ echo '$ac_cv_lib_Xext_XShmCreateImage'
+ eval 'test "$ac_cv_lib_Xext_XShmCreateImage" = yes'
++ test yes = yes
+ echo yes
yes
+ alibs=-lXext -lX11 
+ cat
Segmentation fault

My environment is by and large pretty normal - $SHELL is /bin/bash.
Removing all programmable completion entries doesn't make any
difference. strace seems to hide the problem. Any ideas about what might
be wrong?

-- 
Colin Watson                                  [cjwatson@flatline.org.uk]