[R] Compiling on AIX 6.1

I'm trying to compile R on AIX 6.1. gcc -v Using built-in specs. Target: powerpc-ibm-aix6.1.0.0 Configured with: ../gcc-4.4.5/configure --with-as=/usr/bin/as --with-ld=/usr/bin/ld --enable-languages=c,c++,fortran --prefix=/opt/freeware --enable-threads --enable-version-specific-runtime-libs --di

[R] erro during make

We are trying to make R on AIX and hit the error below. We have searched for a fix but have not come up with anything yet on where these functions or macos should be define and how. Can you help? gcc -std=gnu99 -I../../src/extra/bzip2 -I../../src/extra/pcre -I../../src/extra -I../