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Want to link to this manual page? Skip site kzi,nyv 1 Skip section navigation 2 Header And Logo. The default location of src. Overriding the location of src.
The only purpose of src. As a rule, the system administrator creates src. In addition, control variables can be specified for a particular build via the -D option of make 1 or in its environment; see environ 7. The presence of an option causes it to be honored by make 1. This list provides a name and short description for variables that can be used for source builds. The resulting system cannot build programs from source.
When set, it enforces these options: The option does not work for build targets unless some alternative toolchain is provided. When set, these options are also in effect: The option has no effect yet. To be able to build the system, either gcc or clang bootstrap must be enabled unless an alternate compiler is provided via XCC.
When compiling a different version of FreeBSD than what is installed on the system, provide an alternate compiler with XCC to ensure success. When compiling with an identical version of FreeBSD to the host, this option may be safely used.
This option may also be safe when the host version of FreeBSD is close to the sources being built, but all bets are off if there have been any changes to the toolchain between the versions. It will also pre- vent building of gperf 1 and devd 8.
For details see http: Build com- mands can be seen from the top-level with: The build can be started from anywhere, and behaves the same. Note that there is currently no mass install feature for this.
Only the uncompressed version will be installed. An alter- nate bootstrap tool chain must be provided. This includes the device tree compiler dtc and libfdt support library.
Also disables all format checking. You must enable either gcc or clang bootstrap to be able to build the system, unless an alternative compiler is provided via XCC. This permits gdb 1 to be used as a fallback for crashinfo 8 if a newer version is not installed. This is the default on platforms where clang is the system compiler. This is the default on platforms where gcc is the system compiler.
The option does not work for build targets. For example, when creating a nanobsd 8 image.
This option is needed for ipsec 4 and tcpmd5 4. This option is recom- mended for those people who have small root partitions. This option is for transitioning to the new hard float ABI.
This option is preferred to specific target support options.
This option is always applied to the bootstrap compiler for buildworld when LLVM is used. This option is a nop on all other platforms. See tests 7 for more details. Only the uncom- pressed versions will be installed. These meta files track the command that was executed, its output, and the current directory.
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When the module is loaded, any files used by the commands exe- cuted are tracked as dependencies for the target in its meta file. The target is considered freeebsd and rebuilt if any of these conditions are true compared to the last build: The meta files can also be useful for debugging.
Errors cause make 1 to show some of its environment for further debugging. The build operates as it normally would otherwise.
If set, you might need to adopt your nsswitch. The generic caching daemon, nscd 8will not be built either if this option is set.
This option is depre- cated and does nothing. Successive builds will kzikny be bit-for-bit identical. Rfeebsd set includes cc 1make kzikknyv and necessary utilities like assembler, linker and library archive manager.
Normally, if the currently installed compiler matches the planned bootstrap compiler type and revision, then it will not be built. This does not prevent a compiler from being built for installation though, only for building one for the build itself.
Normally, if the currently installed linker matches the planned bootstrap linker type and revision, then it will not be built. This does not prevent a linker from being built for installation though, only for build- ing one for the build itself. This also disables the build of all test-related dependencies, including ATF. This option is transitional and will be removed before the Useful as a temporary workaround when code enters the tree which triggers warnings in environments that differ from the original developer.