On 6/12/15 7:52 PM, pi3orama wrote:
发自我的 iPhone
在 2015年6月13日，上午10:31，Alexei Starovoitov <a...@plumgrid.com> 写道：
On 6/11/15 10:35 PM, Wang Nan wrote:
# Path to clang. If omit, search it from $PATH.
clang-path = "/path/to/clang"
I think this bit and search_program() from the next patch is
overly flexible. It's always delicate to search file paths.
Unless this is really needed, I would drop this bit.
I think searching clang before execution is still equired. If not, we are
unable to know the exact reason why the shell script failed. If there's no
clang at all, we can simply return an error instead of trying to detect kbuild
and kernel header. Which is slower than clang compiling itself.
What about creating another shell script simply run 'clang --version' to check
availability of clang? Then search_program can be dropped.
Hmm, I'm missing something.
If clang is not in a path, the string from popen will be something like:
/bin/sh: clang: command not found
?
but if you want to call 'clang --version' as well that's also fine.
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