make -f fluid.mak
make[1]: Entering directory `/d/Download/Fltk2.0/fltk/MinGW'
g++  -DUSE_CONF -fno-exceptions -g -O0 -I.. -I../visualc -DFL_SHARED -D_DEBUG -D_MSC_DLL -DWIN32 -D_WINDOWS -DWIN32_LEAN_AND_MEAN -DVC_EXTRA_LEAN -DWIN32_EXTRA_LEAN -save-temps -v  -o ../fluid/file.o -c ../fluid/file.cxx
Reading specs from c:/MinGW/bin/../lib/gcc-lib/mingw32/3.2/specs
Configured with: ../gcc/configure --with-gcc --with-gnu-ld --with-gnu-as --host=mingw32 --target=mingw32 --prefix=/mingw --enable-threads --disable-nls --enable-languages=f77,c++,objc,ada --disable-win32-registry --disable-shared
Thread model: win32
gcc version 3.2 (mingw special 20020817-1)
 c:\MinGW\bin\..\lib\gcc-lib\mingw32\3.2\cpp0.exe -lang-c++ -D__GNUG__=3 -D__DEPRECATED -v -I.. -I../visualc -iprefix c:\MinGW\bin\../lib/gcc-lib/mingw32/3.2/ -D__GNUC__=3 -D__GNUC_MINOR__=2 -D__GNUC_PATCHLEVEL__=0 -D__GXX_ABI_VERSION=102 -D_WIN32 -D__WIN32 -D__WIN32__ -DWIN32 -D__MINGW32__ -D__MSVCRT__ -DWINNT -D_X86_=1 -D_WIN32 -D__WIN32 -D__WIN32__ -D__WIN32__ -D__MINGW32__ -D__MSVCRT__ -D__WINNT__ -D_X86_=1 -D__WIN32 -D__WINNT -Asystem=winnt -D__NO_INLINE__ -D__STDC_HOSTED__=1 -Acpu=i386 -Amachine=i386 -Di386 -D__i386 -D__i386__ -D__tune_i586__ -D__tune_pentium__ -D__stdcall=__attribute__((__stdcall__)) -D__cdecl=__attribute__((__cdecl__)) -D__fastcall=__attribute__((__fastcall__)) -D_stdcall=__attribute__((__stdcall__)) -D_cdecl=__attribute__((__cdecl__)) -D_fastcall=__attribute__((__fastcall__)) -D__declspec(x)=__attribute__((x)) -DUSE_CONF -DFL_SHARED -D_DEBUG -D_MSC_DLL -DWIN32 -D_WINDOWS -DWIN32_LEAN_AND_MEAN -DVC_EXTRA_LEAN -DWIN32_EXTRA_LEAN ../fluid/file.cxx file.ii
GNU CPP version 3.2 (mingw special 20020817-1) (cpplib) (80386, BSD syntax)
ignoring nonexistent directory "c:/MinGW/mingw32/include"
ignoring nonexistent directory "/mingw/lib/gcc-lib/mingw32/3.2/../../../../include/c++/3.2"
ignoring nonexistent directory "/mingw/lib/gcc-lib/mingw32/3.2/../../../../include/c++/3.2/mingw32"
ignoring nonexistent directory "/mingw/lib/gcc-lib/mingw32/3.2/../../../../include/c++/3.2/backward"
ignoring nonexistent directory "/mingw/lib/gcc-lib/mingw32/3.2/../../../../include"
ignoring nonexistent directory "/mingw/include"
ignoring nonexistent directory "/mingw/lib/gcc-lib/mingw32/3.2/include"
ignoring nonexistent directory "/mingw/lib/gcc-lib/mingw32/3.2/../../../../mingw32/include"
ignoring nonexistent directory "/usr/local/mingw32/include"
#include "..." search starts here:
#include <...> search starts here:
 ..
 ../visualc
 c:/MinGW/include/c++/3.2
 c:/MinGW/include/c++/3.2/mingw32
 c:/MinGW/include/c++/3.2/backward
 c:/MinGW/include
 c:/MinGW/lib/gcc-lib/mingw32/3.2/include
End of search list.
 c:\MinGW\bin\..\lib\gcc-lib\mingw32\3.2\cc1plus.exe -fpreprocessed file.ii -quiet -dumpbase file.cxx -g -O0 -version -fno-exceptions -o C:\DOCUME~1\Alain\LOCALS~1\Temp/ccgLaaaa.s
GNU CPP version 3.2 (mingw special 20020817-1) (cpplib) (80386, BSD syntax)
GNU C++ version 3.2 (mingw special 20020817-1) (mingw32)
        compiled by GNU C version 3.2.
../fluid/file.cxx: In function `void fl_end_group()':
../fluid/file.cxx:647: Internal compiler error in rest_of_compilation, at 
   toplev.c:3491
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.
make[1]: *** [../fluid/file.o] Error 1
make[1]: Leaving directory `/d/Download/Fltk2.0/fltk/MinGW'
make: *** [fluid] Error 2

Release:
3.2

Environment:
MinGW 2.0 + MSys 1.0.7 on WIndowsXP Home (pentium III)

How-To-Repeat:
compiling this file should return you the same error. 
If not, please ask me for more data.