Vax C90-EL SERIES Service Manual download pdf (Page 63)

Compiler Commands [2]

• The following example compiles mydata1.C, writes object file mydata1.o,

and produces a scalar optimization report to stdout.

CC -c -h report=s mydata1.C

• The following example compiles mydata3.c and produces the executable

file a.out. A 132-column pseudo assembly listing file is also produced

in file mydata3.L.

cc -h listing mydata3.c

• The following example compiles myfile.c and passes an option to the

loader (-Dalign=modules) that causes blocks of code to be aligned.

cc -Wl,"-Dalign=modules" myfile.c

• The following example compiles myfile.C and instructs the compiler to

attempt to inline calls aggressively to functions defined within myfile.C.An

inlining report is directed to myfile.V.

CC -h inline3,report=if myfile.C

2.24 Environment Variables

The environment variables listed below are used during compilation.

ariable Description

CRAYOLDCPPLIB If set to a nonzero value, this variable instructs the

compiler to resolve references using C++ libraries

that are compatible with code developed under

programming environment 3.4 or 3.5 and then use

the C++ library of programming environment 3.6.

Some C++ codes compiled with previous

compilers may be binary incompatible with the 3.6

C++ compiler. The CRAYOLDCPPLIB environment

variable suppresses these incompatibilities

by using the libCx.a library, which is the

libC.a library of programming environment

3.5, in conjunction with the libC.a library of

programming environment 3.6. If you do not

use the variable, your older code may require

modification to compile successfully. Refer to

Programming Environments Release Overview for

more information about modifying your code.

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Vax C90-EL SERIES Service Manual Page 63