GYP(1) GYP(1)
NAME
gyp - cross-platform makefile generator for Chromium
SYNOPSIS
gyp [options] [build_file...]
DESCRIPTION
Uses the specified build files to generate build scripts or project
files in the current platform’s native format. If no build file is
specified, all files in the current directory with a .gyp suffix are
used.
OPTIONS
-D<variable>=<value>
Provide a default value for the given variable. This supplements
settings from the GYP_DEFINES environment variable, which should be
a space-separated list of <variable>=<value> pairs.
-f<format>[(,<format>)...], --format=<format>[(,<format>)...]
Generate output in the formats listed. Valid formats include make
(GNU makefile), xcode (Xcode project file), msvs (Visual Studio
project file), scons (SCons rule set), and gypd (gyp input, for
debugging).
Defaults to the value of the GYP_GENERATORS environment variable,
which should be a comma-separated list of formats, or the platform’s
native format if unset (xcode for Mac OS X, msvs for Windows,
including Cygwin, make for other Unix).
-I<path>, --include=<path>
Implicitly include the contents of the <path> file in all loaded
.gyp files.
--depth=<path>
For Chromium, the gyp "depth" variable should always be a relative
path to Chromium’s top-level src directory. This option allows one
to specify a path the DEPTH variable should be set relative to.
Defaults to the first directory named src found as an ancestor of
one of the build files passed on the command line.
-d<debug mode>, --debug=<debug mode>
Turn on debugging output. Valid debugging modes include "general" to
list options used, "variables" to trace variable expansion, and
"includes" to trace build file include directives.
-S<suffix>, --suffix=<suffix>
Insert the specified string in the names of generated files before
the standard extension. For example, with the make backend and a
suffix of ".foo", gyp will write the main makefile to Makefile.foo
and target-specific snippets to target.foo.mk.
-G<flag>=<value>
Set a "generator flag", which is an option specific to the
particular output format. All generator flags have names beginning
with the name of the output format. This supplements the
GYP_GENERATOR_FLAGS environment variable, which should be a
space-separated list of <flag>=<value> pairs.
--generator-output=<dir>
Write the generated build files under the <dir> directory and adjust
paths accordingly. This allows building in a separate directory from
the source files.
This overrides the GYP_GENERATOR_OUTPUT environment variable.
--ignore-environment
Do not read options from environment variables.
--check
Take extra time to verify the syntax of each build_file.
--parallel
Use multiprocessing for speed (experimental).
--toplevel-dir=<dir>
Directory to use as the root of the source tree.
--build=<configs>
Configuration for build after project generation.
--no-circular-check
Disable the check for circular relationships between .gyp files.
These relationships should not exist, but they’ve only been observed
to be harmful with the Xcode output format. Chromium’s .gyp files
currently have some circular relationships on non-Mac platforms, so
this option allows the strict behavior to be used on Macs and the
lenient behavior to be used elsewhere.
This option is likely to be removed once all circular relationships
in Chromium are eliminated.
ENVIRONMENT
GYP_DEFINES, GYP_GENERATORS, GYP_GENERATOR_FLAGS, GYP_GENERATOR_OUTPUT
See the -D, --format, -G, and --generator-output options.
FILES
~/.gyp/include.gypi
Implicitly included before anything else in every .gyp file.
SEE ALSO
qmake(1), cmake(1)
01/26/2025 GYP(1)
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