[R] Error: Line starting 'Package: tools ...' is malformed!

[Mike Beddo]

I'm building R-3.1.1 (64 bit) from source on AIX 7.1. It was going well until I hit this:

xlc_r -q64 -Wl,-brtl -Wl,-G -Wl,-bexpall -Wl,-bnoentry -lc -L/opt/freeware/lib64 -L/opt/freeware/lib -Wl,-blibpath:/opt/freeware/lib64:/opt/freeware/lib:/usr/lib:/lib -Wl,-bmaxdata:0x80000000 -o tools.so text.o init.o Rmd5.o md5.o signals.o install.o getfmts.o http.o gramLatex.o gramRd.o -lm
make[6]: Entering directory `/home/meb/source/R-3.1.1/src/library/tools/src'
mkdir -p -- ../../../../library/tools/libs
make[6]: Leaving directory `/home/meb/source/R-3.1.1/src/library/tools/src'
make[5]: Leaving directory `/home/meb/source/R-3.1.1/src/library/tools/src'
make[4]: Leaving directory `/home/meb/source/R-3.1.1/src/library/tools'
Error: Line starting 'Package: tools ...' is malformed!
Execution halted
make[3]: *** [all] Error 1
make[3]: Leaving directory `/home/meb/source/R-3.1.1/src/library/tools'
make[2]: *** [R] Error 1
make[2]: Leaving directory `/home/meb/source/R-3.1.1/src/library'
make[1]: *** [R] Error 1
make[1]: Leaving directory `/home/meb/source/R-3.1.1/src'
make: *** [R] Error 1
$ oslevel
7.1.0.0

Can someone help?

Thanks,

Mike