* installing *source* package ‘rFerns’ ...
** package ‘rFerns’ successfully unpacked and MD5 sums checked
** using staged installation
** libs
make[1]: Entering directory '/data/gannet/ripley/R/packages/tests-clang13/rFerns/src'
/usr/local/clang13/bin/clang -I"/data/gannet/ripley/R/R-clang-trunk/include" -DNDEBUG   -isystem /usr/local/clang13/include  -fvisibility=hidden -fopenmp -fpic  -g -O3 -Wall -pedantic  -c ferns.c -o ferns.o
In file included from ferns.c:22:
In file included from ./tools.h:17:
/usr/local/clang13/lib/clang/13.0.0/include/omp.h:483:39: error: expected 'match' clause on 'omp declare variant' directive
    #pragma omp begin declare variant match(device={kind(host)})
                                      ^
/data/gannet/ripley/R/R-clang-trunk/include/Rinternals.h:967:17: note: expanded from macro 'match'
#define match                   Rf_match
                                ^
In file included from ferns.c:22:
In file included from ./tools.h:17:
/usr/local/clang13/lib/clang/13.0.0/include/omp.h:486:39: error: expected 'match' clause on 'omp declare variant' directive
    #pragma omp begin declare variant match(device={kind(nohost)})
                                      ^
/data/gannet/ripley/R/R-clang-trunk/include/Rinternals.h:967:17: note: expanded from macro 'match'
#define match                   Rf_match
                                ^
2 errors generated.
make[1]: *** [/data/gannet/ripley/R/R-clang-trunk/etc/Makeconf:168: ferns.o] Error 1
make[1]: Leaving directory '/data/gannet/ripley/R/packages/tests-clang13/rFerns/src'
ERROR: compilation failed for package ‘rFerns’
* removing ‘/data/gannet/ripley/R/packages/tests-clang13/Libs/rFerns-lib/rFerns’
Command exited with non-zero status 1
Time 0:01.19, 0.53 + 0.10