config BINARY_FOLDER
string "Binary folder" if DEVEL
default ""
+ help
+ Store built firmware images and filesystem images in this directory.
+ If not set, uses './bin/$(BOARD)'
config DOWNLOAD_FOLDER
string "Download folder" if DEVEL
default ""
+ help
+ Store downloaded source bundles in this directory.
+ If not set then defaults to './dl', which is removed by operations such as
+ 'git clean -xdf' or 'make distclean'.
+ This option is useful if you have a low bandwidth Internet connection, and by
+ setting a path outside the OpenWrt tree downloads will be saved.
config LOCALMIRROR
string "Local mirror for source packages" if DEVEL
bool "Automatic rebuild of packages" if DEVEL
default y
help
- Automatically rebuild packages when their files change
+ Automatically rebuild packages when their files change.
+
+ config AUTOREMOVE
+ bool "Automatic removal of build directories" if DEVEL
+ default n
+ help
+ Automatically delete build directories after make target completed.
+ This allows you to symlink build_dir into a scratch location, e.g. a ramdisk,
+ which does not have enough space to keep a complete build_dir.
config BUILD_SUFFIX
- string "Build suffix to append to the BUILD_DIR variable" if DEVEL
+ string "Build suffix to append to the target BUILD_DIR variable" if DEVEL
default ""
help
- Build suffix to append to the BUILD_DIR variable, i.e: build_dir_suffix
+ Build suffix to append to the BUILD_DIR variable, i.e: './build_dir/{target-build-dir}_$(BUILD_SUFFIX)'.
+ This allows you to switch to a different .config whilst retaining all the build
+ objects generated by the first .config
config TARGET_ROOTFS_DIR
string "Override the default TARGET_ROOTFS_DIR variable" if DEVEL
default ""
help
- Override the default TARGET_ROOTFS_DIR variable content $(BUILD_DIR) with custom path.
- Use this option to re-define the location of the target root file system directory.
+ Override the default TARGET_ROOTFS_DIR variable content $(BUILD_DIR) with
+ custom path. Use this option to re-define the location of the target
+ root filesystem directory.
config CCACHE
bool "Use ccache" if DEVEL
default n
help
- Compiler cache; see http://ccache.samba.org/
+ Compiler cache; see https://ccache.samba.org/
config EXTERNAL_KERNEL_TREE
string "Use external kernel tree" if DEVEL
help
Enter the full git repository path i.e.:
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git
- This will create a git clone of the kernel in your build
- directory.
+ This will create a git clone of the kernel in your build directory.
config KERNEL_GIT_LOCAL_REPOSITORY
string "Enter path to local reference repository" if DEVEL
default ""
help
Enter a full pathname to a local reference git repository.
- In this instance, the --refererence option of git clone will
+ In this instance, the --reference option of git clone will
be used thus creating a quick local clone of your repo.
- config KERNEL_GIT_BRANCH
- string "Enter git branch to clone" if DEVEL
+ config KERNEL_GIT_REF
+ string "Enter git ref at which to checkout" if DEVEL
depends on (KERNEL_GIT_CLONE_URI != "")
default ""
help
- Enter the branch name to checkout after cloning the git repository.
- In this instance, the --branch option of git clone will be used.
+ Enter the git ref at which to checkout the git repository
+ after it is cloned, and before making it a tar-ball.
+ It can be a git hash or a branch name.
If unused, the clone's repository HEAD will be checked-out.
config BUILD_LOG
bool "Enable log files during build process" if DEVEL
help
- If enabled log files will be written to the ./log directory
+ If enabled, log files will be written to the ./log directory.
config SRC_TREE_OVERRIDE
bool "Enable package source tree override" if DEVEL
If enabled, you can force a package to use a git tree as source
code instead of the normal tarball. Create a symlink 'git-src'
in the package directory, pointing to the .git tree that you want
- to pull the source code from
+ to pull the source code from.
config EXTRA_OPTIMIZATION
string "Additional compiler options" if DEVEL
+ default "-fno-caller-saves -fno-plt" if !CONFIG_EXTERNAL_TOOLCHAIN && !arc
default "-fno-caller-saves"
help
- Extra Target-independent optimizations to use when building for the target.
+ Extra target-independent optimizations to use when building for the target.