Pass --build and --host options to the configure script. Pass a bunch
of a priori cached test results for stuff that can't be determined
when cross-compiling. Link with the CoreFoundation framework. Build
static archives.
Patch out the compile-time USE_LIBICONV_GNU and _LIBICONV_H test from
gconvert.c as it for some reason fails for iOS.
Don't use the same name for the GLib DLLs that we build with MSVS9 as
in the "official" MinGW-built packages (either the ones from
www.gtk.org, or the ones from OBS). The "official" GLib DLLs use
msvcrt.dll, while the ones we build use msvcr90.dll. We want to avoid
potential confusion. Call the DLLs we build glib-2.0.dll etc, not
libglib-2.0-0.dll etc.
