The cpu family "mipsel" does not exist in meson so the current test to
enable the HAVE_MIPSEL macro is always false. The real cpu family is
"mips" but this also matches big endian platforms so also check that the
endian is little.
https://bugzilla.gnome.org/attachment.cgi?id=370595
cdata.set('HAVE_POWERPC', true)
elif cpu_family == 'arm'
cdata.set('HAVE_ARM', true)
-elif cpu_family == 'mipsel'
+elif cpu_family == 'mips' and host_machine.endian() == 'little'
cdata.set('HAVE_MIPSEL', true)
endif