R help - Dec 2008 - Rcmd build problem: gcc.exe no input files (R.2.8.0 on Win XP)

Building a package using R.2.8.0 on Windows XP gives problems when compiling C
code: Trying to run 'rcmd build' on R.2.8.0 on Windows XP gives
 
...
---------- Making package gRbase ------------
  adding build stamp to DESCRIPTION
  making DLL ...
gcc  -std=gnu99  -Ic:/Programs/R/current/include
------------------------------------
gcc.exe: no input files
make[3]: *** [setops.o] Error 1
make[2]: *** [srcDynlib] Error 2
make[1]: *** [all] Error 2
make: *** [pkg-gRbase] Error 2
*** Installation of gRbase failed ***

whereas running 'rcmd build' on R.2.7.1 I get 
...
---------- Making package gRbase ------------
  adding build stamp to DESCRIPTION
  making DLL ...
gcc  -std=gnu99  -Ic:/programs/R/prev/include     -O3 -Wall  -c setops.c -o
setops.o
gcc  -std=gnu99  -Ic:/programs/R/prev/include     -O3 -Wall  -c triangmcwh.c -o
triangmcwh.o
windres --preprocessor="gcc -E -xc -DRC_INVOKED" -I
c:/programs/R/prev/include  -i gRbase_res.rc -o gRbase_res.o
gcc  -std=gnu99  -shared -s  -o gRbase.dll gRbase.def setops.o triangmcwh.o
gRbase_res.o  -Lc:/programs/R/prev/bin -Lc:/programs/R/prev/bin -lRlapack
-Lc:/programs/R/prev/bin -lRblas -lgfortran    -lR
  ... DLL made

- so the old version works fine. Would anyone have an idea what goes wrong?
 
Thanks
Søren
 

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