Building 5.5.rc0 fails on sage.math.waashington.edu?

[Jean-Pierre Flori]

Was it expected or did I mess something in the way?
I just exported MAKE and SAGE_ATLAS_LIB

The R spkg fails erroring in the end with

make[6]: Entering directory `/home/jpflori/sage-5.5.rc0/spkg/build/r-2.14.0.p6/src/src/main'
gcc -std=gnu99 -I../../src/extra/zlib -I../../src/extra/bzip2 -I../../src/extra/pcre -I../../src/extra  -I../../src/extra/xz/api -I. -I../../src/include -I../../src/include  -DHAVE_CONFIG_H   -fopenmp -fpic  -g -O2  -c Rmain.c -o Rmain.o
gcc -std=gnu99 -Wl,--export-dynamic -fopenmp   -o R.bin Rmain.o -L../../lib -lR -lRblas
../../lib/libR.so: undefined reference to `rl_sort_completion_matches'
collect2: ld returned 1 exit status
make[6]: *** [R.bin] Error 1

So this seems related to readline, but readline spkg seems to have installed fine.

Any idea of what is going wrong?

Cheers,
JP