CODEWITHSUNDEEP
clangllvm
Guilherme Schlinker
Guilherme Schlinker

Reputation: 327

Compile Clang with alternative sysroot

I am compiling clang 11.1.0 from source and I want it to be configured to use an alternative sysroot by default, such that when I compile a program using clang it will take the system headers and libraries from this alternative sysroot path by default.

For example suppose I have /path/to/my/toolchain as my sysroot.

When I configured and built gcc I used the options --with-sysroot=/path/to/my/toolchain and --with-native-headers=/path/to/my/toolchain. Now every time I compile a program with gcc it takes the system headers/libraries automatically from /path/to/my/toolchain.

I want to do the same with clang. The only way I could get it working so far is to have the option -isysroot /path/to/my/toolchain every time I compile a program. Is there a way to specify the sysroot path when compiling clang so that it becomes the default sysroot when running clang?

Upvotes: 1

Views: 4781

Answers (1)

Anton Korobeynikov
Anton Korobeynikov

Reputation: 9324

Use DEFAULT_SYSROOT cmake variable. E.g. cmake -DDEFAULT_SYSROOT=<your_sysroot_path>

Upvotes: 3

Related Questions