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meson: fail if get_clang_ver fails

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In my dev enviroment, bpf_clang_ver is coming as NULL, since I am using
upstream Clang. Fails graceful in this case.

	#  /usr/local/bin/clang --version
	clang version 18.0.0git (https://github.com/llvm/llvm-project.git c458f928fad7bbcf08ab1da9949eb2969fc9f89c)
	Target: x86_64-unknown-linux-gnu
	Thread model: posix
	InstalledDir: /usr/local/bin

But the command below returns nothing
	/home/leit/Devel/scx/meson-scripts/get_clang_ver /usr/local/bin/clang

Signed-off-by: Breno Leitao <leitao@debian.org>
This commit is contained in:
Breno Leitao 2024-03-14 03:27:19 -07:00
parent 3cda1bc690
commit 4a18e9c7f7
1 changed files with 4 additions and 0 deletions
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meson.build
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@ -41,6 +41,10 @@ if enable_rust
endif
bpf_clang_ver = run_command(get_clang_ver, bpf_clang, check: true).stdout().strip()
if bpf_clang_ver == ''
error('Unable to find clang version')
endif
bpf_clang_maj = bpf_clang_ver.split('.')[0].to_int()
if bpf_clang_maj < 16