Build error under Windows

[Nick Martin]

Hi everyone,

I'm trying to build GNUCash from svn under Windows XP using the
install.sh script, but I get the following error:

gcc -shared .libs/libgmp.la-1.o   -m32 -mtune=pentium4 -march=pentium4 -mno-cygw
in -Wl,--export-all-symbols -Wl,--output-def -Wl,.libs/libgmp-3.dll.def -o .libs
/libgmp-3.dll -Wl,--enable-auto-image-base -Xlinker --out-implib -Xlinker .libs/
libgmp.dll.a
Creating library file: .libs/libgmp.dll.a
.libs/libgmp.la-1.o:out_str.c:(.text+0x2c1f): undefined reference to `__mingw_vf
printf'
.libs/libgmp.la-1.o:repl-vsnprintf.c:(.text+0x319c1): undefined reference to `__
mingw_vsprintf'
.libs/libgmp.la-1.o:repl-vsnprintf.c:(.text+0x31bc6): undefined reference to `__
mingw_vsprintf'
collect2: ld returned 1 exit status
make[2]: *** [libgmp.la] Error 1
make[2]: Leaving directory `/c/soft/tmp/gmp-4.3.1'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/c/soft/tmp/gmp-4.3.1'
make: *** [all] Error 2

This is what I have in my custom.sh:

# Added the first line after getting the error. It didn't help.
LIBRARY_PATH=/c/MinGW/lib
DOWNLOAD_DIR=/c/downloads
MSYS_DIR=/c/msys/1.0
QTDIR=/c/Qt/4.5.3

Do you think I'm missing a library file? I'm not familliar with how
MinGW works, so I'm not too sure what's going on here. Any help anyone
can offer would be great.

Thanks,
Nick Martin