With my patch:

NOTE: Selecting already-staged binutils-cross (0:2.16-r7) to satisfy virtual/arm-linux-binutils
NOTE: selecting glibc to satisfy virtual/arm-linux-libc-for-gcc due to PREFERRED_PROVIDERS
NOTE: No providers of build target mpfr-native (for ['/usr/src/sdkmnci/org.openembedded.dev/packages/gcc/gcc-cross_4.1.1.bb'])
ERROR: No buildable providers available for required build target task-auto-build



With you patch:

NOTE: selecting glibc to satisfy virtual/arm-linux-libc-for-gcc due to PREFERRED_PROVIDERS
ERROR: No buildable providers available for required build target task-auto-build