[rds@mgmt RegCM5]$ make
make all-recursive
make[1]: Entering directory `/home/rds/huym/RegCM5'
Making all in external
make[2]: Entering directory `/home/rds/huym/RegCM5/external'
make[2]: Nothing to be done for `all'.
make[2]: Leaving directory `/home/rds/huym/RegCM5/external'
Making all in Share
make[2]: Entering directory `/home/rds/huym/RegCM5/Share'
pgf90 -I/home/rds/huym/RegCM5/external -I/public/software/netcdf-4/include -I/public/software/netcdf-4/include -I/home/rds/huym/RegCM5/Share '-DSVN_REV="exported"' -fastsse -byteswapio -c mod_constants.F90
PGF90-S-0155-Intrinsic not supported in initialization: sqrt (mod_constants.F90: 142)
0 inform, 0 warnings, 1 severes, 0 fatal for mod_constants
make[2]: *** [mod_constants.o] Error 2
make[2]: Leaving directory `/home/rds/huym/RegCM5/Share'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/home/rds/huym/RegCM5'
make: *** [all] Error 2

what's wrong ? please help me ,thank you very much!