Build hangs on Solaris/x86

Building Ikarus Scheme on a Solaris/x86 system hangs during the macro expansion phase. The build log says:

============================================
Making all in scheme
../src/ikarus -b ./ikarus.boot.orig --r6rs-script makefile.ss
expanding "ikarus.singular-objects.ss"
expanding "ikarus.handlers.ss"
expanding "ikarus.multiple-values.ss"
[... snipped ...]
expanding "ikarus.main.ss"
running stats for macro expansion:
    44 collections
    4055 ms elapsed cpu time, including 302 ms collecting
    4061 ms elapsed real time, including 304 ms collecting
    186521960 bytes allocated
============================================

It hangs there for a minute or so and finally says:

============================================
*** Signal 11 - core dumped
make: Fatal error: Command failed for target `ikarus.boot'
============================================

$ uname -a

returns:

SunOS wien 5.11 snv_55b i86pc i386 i86pc Solaris

I used the Sun C compiler and linker:

$ cc -V
cc: Sun C 5.9 SunOS_i386 2007/05/03

$ ld -V
ld: Software Generation Utilities - Solaris Link Editors: 5.11-1.555

The same thing happens when i try to build with gcc 3.4.3. Output of gcc -v:

============================================
Reading specs from /usr/sfw/lib/gcc/i386-pc-solaris2.11/3.4.3/specs
Configured with: /builds1/sfwnv-gate/usr/src/cmd/gcc/gcc-3.4.3/configure --prefix=/usr/sfw --with-as=/usr/sfw/bin/gas --with-gnu-as --with-ld=/usr/ccs/bin/ld --without-gnu-ld --enable-languages=c,c++,f77 --enable-shared
Thread model: posix
gcc version 3.4.3 (csl-sol210-3_4-20050802)
============================================

I can't try the build with gcc + gnu ld because gnu ld isn't installed on that machine.

Here's a backtrace of the version built with Sun cc and ld:

============================================
(gdb) backtrace
#0 0xf5160934 in ?? ()
#1 0xe6ce0818 in ?? ()
#2 0xfe59f5c3 in ?? ()
#3 0x000002f8 in ?? ()
#4 0x000002f4 in ?? ()
#5 0xf7aa0bec in ?? ()
#6 0x00000be8 in ?? ()
#7 0xfe4e269d in ?? ()
#8 0xfd940055 in ?? ()
#9 0xbbaf0f2d in ?? ()
#10 0xe6ce0e24 in ?? ()
#11 0xfe597173 in ?? ()
#12 0x00000bdc in ?? ()
#13 0x000103d8 in ?? ()
#14 0x00006038 in ?? ()
#15 0xfe200005 in ?? ()
#16 0xf50d0efa in ?? ()
#17 0xfd940055 in ?? ()
#18 0xed953005 in ?? ()
#19 0x0805dc6d in L_call ()
============================================