Rational ClearCase Commands Referenceannotate
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xclearcase
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xmldiffmrg
SYNOPSIS
DESCRIPTION
Note: The distinctive features of clearmake, such as build auditing, derived object sharing, and build avoidance, are supported in dynamic views only. In addition, parallel building is supported in ClearCase snapshot views, but is not supported in ClearCase LT.
clearmake is the ClearCase variant of the UNIX make(1) utility. It includes most of the features of UNIX System V make(1). It also features compatibility modes, which enable you to use clearmake with makefiles that were constructed for use with other popular make variants, including Gnu make.
clearmake features a number of ClearCase extensions:
- Configuration lookup. A build-avoidance scheme that is more sophisticated than the standard scheme, which uses time stamps of built objects. Configuration lookup also includes automatic dependency detection. For example, this guarantees correct build behavior as C-language header files change, even if the header files are not listed as dependencies in the makefile.
- Derived object sharing. Developers working in different views can share the files created by clearmake builds.
- Creation of configuration records. Software bill-of-materials records that fully document a build and support the ability to rebuild.
OPTIONS AND ARGUMENTS
clearmake supports the options below. In general, standard make options are lowercase characters and clearmake extensions are uppercase. Options that do not take arguments can be combined on the command line (for example, –rOi).
- –f makefile
- Uses makefile as
the input file. If you omit this option, clearmake looks
for input files named makefile and Makefile (in
that order) in the current working directory. You can use more than one –f makefile argument
pair. Multiple input files are effectively concatenated.
- –u
- (Unconditional) Rebuilds all goal targets
specified on the command line, along with the recursive closure of their
dependencies, regardless of whether they need to be rebuilt. (See also –U.)
- –k
- Abandons work on the current entry if
it fails, but continues on other targets that do not depend on that entry.
- –i
- Ignores error codes returned by commands.
- –n
- (No-execute) Lists command lines from
the makefile for targets that need to be rebuilt, but do not execute them.
Even lines beginning with an at-sign (@)
are listed. See Building Software.
Exception: A command that contains the string $(MAKE) is always executed on Windows systems. On UNIX systems, it is executed unless you are using sgismake or sgipmake compatibility mode. These modes do not necessarily execute $(MAKE).
- –s
- (Silent) Does not list command lines before
executing them.
- –e
- Environment variables override macro assignments
within the makefile. (But macro=value assignments
on the command line or in a build options spec override environment variables.)
- –r
- (No rules) Does not use the built-in rules
in the file ccase-home-dir/etc/builtin.mk (UNIX)
or ccase-home-dir\etc\builtin.mk (Windows).
When used with –C, this option also disables reading
platform-specific startup files. See the –C option
for more information.
- –v
- (Verbose) Slightly more verbose than the
default output mode. These features are particularly useful:
- Messages that indicate why clearmake does
not reuse a DO that appears in your view (for example, because its CR does
not match your build configuration, or because your view does not have a
DO at that pathname)
- List of the names of DOs being created
- Listing of any .bldhost file
read during the build.
- Messages that indicate why clearmake does
not reuse a DO that appears in your view (for example, because its CR does
not match your build configuration, or because your view does not have a
DO at that pathname)
- –w
- (Working directory) Prints a message that
contains the working directory both before and after executing the makefile.
- –d
- (Debug) Quite verbose and includes a list
of the environment variables that clearmake reads during
the build. Use this option only when debugging makefiles.
- –p
- (Print) Lists all target descriptions
and all macro definitions, including target-specific macro definitions and
implicit rules, and stops before executing anything.
- –q
- (Query) Evaluates makefile targets, but
does not run the build scripts. clearmake returns 0 if
the targets are up to date; returns 1 if any targets need to be rebuilt. Note
that clearmake treats a winkin of a derived object as
a rebuild, so clearmake -q returns 1 if
a DO can be winked in for a target.
- –c
- (Check out DOs) Before building or winking
in a target, clearmake determines whether the target
is a checked-in DO visible in the view at the path named in the makefile.
If such a DO is found, clearmake -c checks
it out before rebuilding it or winking it in. If a target creates sibling
DOs, target group syntax must be used in the makefile or siblings will not
be subject to this behavior.
- –U
- Unconditionally builds goal targets only.
Subtargets undergo build avoidance. If you don't specify any target on the
command line, the default target is the goal. (The –u option
unconditionally builds both goal targets and build dependencies.)
- –N
- Disables the default procedure for reading
one or more BOS files. For a description of the default procedure, see Building Software.
- –R
- (Reuse) Examines sibling derived objects
(objects created by the same build rule that created the target) when determining
whether a target object in a VOB can be reused (is up to date). By default,
when determining whether a target can be reused, clearmake ignores
modifications to sibling derived objects. –R directs clearmake to
consider a target out of date if its siblings have been modified or deleted.
- –J num
- Enables parallel building capability.
The maximum number of concurrent target rebuilds is set to the integer num.
If num=0, parallel building is disabled. (This
is equivalent to not specifying a –J option.)
Alternatively, you can specify num as the value of environment variable CCASE_CONC.
- –B bldhost-file
- Uses bldhost-file as
the build hosts file for a parallel build. If you do not specify –B, clearmake uses
the file .bldhost.$CCASE_HOST_TYPE in
your home directory. When you use –B, you must also
use –J or have the CCASE_CONC environment
variable set. For more information, see Building Software.
- –C compat-mode
- (Compatibility) Invokes one of clearmake's
compatibility modes. (Alternatively, you can use environment variable CCASE_MAKE_COMPAT in a BOS file or in the environment
to specify a compatibility mode.) compat-mode can
be one of the following:
On UNIX systems only, compat-mode can also have one of the values listed below. The –C option is UNIX-platform independent. However, some modes try to read system-specific files; if those files do not exist, the command fails. For more information about the platform-specific methods for dealing with this failure, see the Release Notes.
- –V
- (View) Restricts configuration lookup
to the current view only. Winkin is disabled. This option is mutually exclusive
with –M.
- –M
- (Makefile) Restricts dependency checking
to those dependencies declared explicitly in the makefile or inferred from
a suffix rule. All detected dependencies are ignored. For safety, this option
disables winkin.
For example, a derived object in your view may be reused even if it was built with a different version of a header file than is currently selected by your view. This option is mutually exclusive with –V.
- –O (Objects) , –T (Time stamps), –F (Files)
- (–O, –T,
and –F are mutually exclusive.)
–O compares only the names and versions of objects listed in the targets' CRs; it does not compare build scripts or build options. This is useful when this extra level of checking would force a rebuild that you do not want. Examples:
- A target was built using a
makefile in the current working directory. Now, you want to reuse it in a
build to be performed in the parent directory, where a different makefile
builds the target (with a different script, which typically references the
target using a different pathname).
–T makes rebuild decisions using the standard algorithm, based on time stamps; configuration lookup is disabled. (A CR is still created for each build script execution.)
Note: This option causes both view-private files and derived objects to be used for build avoidance. Because the view-private file does not have a CR to be included in the CR hierarchy, the hierarchy created for a hierarchical build has a gap wherever clearmake reuses a view-private file for a subtarget.
–F works like –T, but also suppresses creation of configuration records. All MVFS files created during the build are view-private files, not derived objects.
- A target was built using a
makefile in the current working directory. Now, you want to reuse it in a
build to be performed in the parent directory, where a different makefile
builds the target (with a different script, which typically references the
target using a different pathname).
- –A BOS-file ...
- You can use this option one or more times
to specify BOS files to be read instead of, or immediately after, the ones
that are read by default. Using –N along with this
option specifies “instead of”; omitting –N causes clearmake to
read the –A file after reading the standard BOS files.
Alternatively, you can specify a colon-separated list of BOS file pathnames (UNIX) or a semicolon-separated list such pathnames as the value of environment variable CCASE_OPTS_SPECS.
- –ver·sion
- Prints version information about the clearmake executable.
- –VerAll
- Prints version information about the clearmake executable
and the libraries (UNIX) or ClearCase DLLs (Windows) that clearmake uses.
EXAMPLES
- Unconditionally build the default target in a particular makefile, along with all its dependent targets.
- Build target hello without checking build scripts or build options during configuration lookup. Be moderately verbose in generating status messages.
- Build the default target in the default makefile, with a particular value of make macro INCL_DIR. Base rebuild decisions on time-stamped comparisons instead of performing configuration lookup, but still produce CRs.
- Perform a parallel build of target bgrs, using up to five of the hosts listed in file .bldhost.solaris in your home directory.
- Build target bgrs.exe, restricting configuration lookup to the current view only. Have environment variables override makefile macro assignments.
- Build the default target in Sun compatibility mode.
SEE ALSO
clearaudit, clearmake.options, env_ccase, make(1), makefile_aix, makefile_ccase, makefile_gnu, makefile_pmake, makefile_smake, makefile_sun, omake, promote_server, scrubber, umask(1), Building Software