DEPENDS = "mpfr gmp" NATIVEDEPS = "mpfr-native gmp-native" gcc depends mpfr gmp, therefore compiler needs mpfr.h gmp.h But these files are located under their own folder (/work/i686-linux/gmp-native-5.0.1-r1.1/gmp-5.0.1/gmp.h) ,not under gcc folder. Wondering how can you overcome this problem? Thanks,