hcc, mpicc, hcp, mpiCC - Compile LAM C/C++ programs.
SYNTAX
hcc [-showme] ...
hcp [-showme] ...
see cc(1) and CC(1) (or whatever your underlying C/C++
compilers are) for all other options.
DESCRIPTION
hcc and hcp are convenience wrappers for the local native
C and C++ compilers. Translation of a LAM program
requires the linkage of the LAM specific libraries which
may not reside in one of the standard search directories
of ld(1). It also often requires the inclusion of header
files what may also not be found in a standard location.
hcc passes its arguments to the local native C compiler
along with the -I, -L and -l options required by LAM pro
grams. This includes all necessary options for ROMIO
and/or C++ bindings support (if ROMIO/C++ support was
included when LAM was compiled). hcp is similar, but
invokes the native C++ compiler instead.
mpicc is now the same as hcc, just as mpiCC is now the
same as hcp. See the NOTES section, below.
By default, hcc uses the C compiler that was selected when
LAM was configured (with the --with-cc flag to ./config
ure, or by setting the environment variable CC before
./configure was invoked) as the local native C compiler,
but this can be overridden by the LAMHCC environment vari
able. Likewise, hcp uses the C++ compiler that was
selected when LAM was configured (with the --with-cpp flag
to ./configure, or by setting the environment variable CXX
before invoking ./configure) by default, but this can be
overridden by the LAMHCP environment variable.
OPTIONS
-showme
Does not invoke the underlying C/C++ compiler.
Instead, it shows the command line that would be
executed to compile the C/C++ program.
NOTES
Previous versions of hcc and hcp did not automatically
link in the MPI library. Starting with LAM version 6.3,
since hcc and hcp have become the de facto LAM C and C++
compilers, the -lmpi option is now automatically passed to
the underlying compiler when linking LAM/MPI programs.
Previous versions of LAM included the mpicc and mpiCC
wrapper scripts to automatically pass -lmpi to hcc and/or
include -lmpi automatically. mpicc and mpiCC are now sym
bolic links to hcc and hcp, respectively, to ensure back
ward compatibility.
SEE ALSO
cc(1), CC(1), ld(1), lam-helpfile(5)
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