Nope

 CCSM BUILDEXE SCRIPT STARTING
 - Build Libraries: mct pio csm_share 
Wed Dec 15 17:03:34 CST 2010 /work/00671/tobis/CAM_A2/mct/mct.bldlog.101215-170331
Wed Dec 15 17:05:36 CST 2010 /work/00671/tobis/CAM_A2/pio/pio.bldlog.101215-170331
Wed Dec 15 17:06:51 CST 2010 /work/00671/tobis/CAM_A2/csm_share/csm_share.bldlog.101215-170331
Wed Dec 15 17:07:52 CST 2010 /work/00671/tobis/CAM_A2/run/cpl.bldlog.101215-170331
Wed Dec 15 17:07:52 CST 2010 /work/00671/tobis/CAM_A2/run/atm.bldlog.101215-170331
ERROR: cam.buildexe.csh failed, see /work/00671/tobis/CAM_A2/run/atm.bldlog.101215-170331
ERROR: cat /work/00671/tobis/CAM_A2/run/atm.bldlog.101215-170331
login4% cat /work/00671/tobis/CAM_A2/run/atm.bldlog.101215-170331
Wed Dec 15 17:07:52 CST 2010 /work/00671/tobis/CAM_A2/run/atm.bldlog.101215-170331
cat: Srcfiles: No such file or directory
/work/00671/tobis/CESM_SRC/ccsm4_0/scripts/CAM_A2/Tools/mkSrcfiles > /work/00671/tobis/CAM_A2/atm/obj/Srcfiles
cp -f /work/00671/tobis/CAM_A2/atm/obj/Filepath /work/00671/tobis/CAM_A2/atm/obj/Deppath
/work/00671/tobis/CESM_SRC/ccsm4_0/scripts/CAM_A2/Tools/mkDepends Deppath Srcfiles > /work/00671/tobis/CAM_A2/atm/obj/Depends
mpif90 -c -I. /usr/include -I/opt/apps/pgi7_1/netcdf/3.6.2/include -I/opt/apps/pgi7_1/netcdf/3.6.2/include -I/opt/apps/pgi7_1/mvapich2/1.0/include -I. -I/work/00671/tobis/CESM_SRC/ccsm4_0/scripts/CAM_A2/SourceMods/src.cam -I/work/00671/tobis/CESM_SRC/ccsm4_0/models/atm/cam/src/chemistry/bulk_aero -I/work/00671/tobis/CESM_SRC/ccsm4_0/models/atm/cam/src/chemistry/utils -I/work/00671/tobis/CESM_SRC/ccsm4_0/models/atm/cam/src/physics/cam -I/work/00671/tobis/CESM_SRC/ccsm4_0/models/atm/cam/src/dynamics/eul -I/work/00671/tobis/CESM_SRC/ccsm4_0/models/atm/cam/src/cpl_mct -I/work/00671/tobis/CESM_SRC/ccsm4_0/models/atm/cam/src/control -I/work/00671/tobis/CESM_SRC/ccsm4_0/models/atm/cam/src/utils -I/work/00671/tobis/CESM_SRC/ccsm4_0/models/atm/cam/src/advection/slt -I/work/00671/tobis/CAM_A2/lib/include  -DCO2A -DMAXPATCH_PFT=numpft+1 -DLSMLAT=1 -DLSMLON=1 -DPLON=128 -DPLAT=64 -DPLEV=26 -DPCNST=3 -DPCOLS=16 -DPTRM=42 -DPTRN=42 -DPTRK=42 -DSPMD -DMCT_INTERFACE -DHAVE_MPI -DCO2A -DLINUX -DSEQ_ -DFORTRANUNDERSCORE -DNO_SHR_VMATH -DNO_R16  -i4 -target=linux -gopt -Mlist -time -Mextend -byteswapio  -O2 -Mvect=nosse -Kieee -O2 -Mvect=nosse -Kieee  -Mfree  /work/00671/tobis/CESM_SRC/ccsm4_0/models/atm/cam/src/control/cam_logfile.F90
pgf90-Error-Unknown switch: -target=linux
gmake: *** [cam_logfile.o] Error 1

Taking out the "-linux" and removing the space in "-I. /usr/include" does seem to create a .o file with no objections.

How this got to be in the distribution I don't know.

Now, apparently have to hack the Makefile...

But NCAR does this in some bizarre way too... Suppose I should look for FORTRANUNDERSCORE