From: Andres Gomez Date: Wed, 28 Feb 2018 21:15:07 +0000 (+0200) Subject: meson: fix LLVM version detection when <= 3.4 X-Git-Url: https://git.libre-soc.org/?p=mesa.git;a=commitdiff_plain;h=98f7650add26423d1b3e871c41ae37972b835fe1 meson: fix LLVM version detection when <= 3.4 3 digits versions in LLVM only started from 3.4.1 on. Hence, even if you can perfectly build with an old LLVM (< 3.4.1) in the system while not needing LLVM at all (auto), when passing through the LLVM version detection code, meson will fail when accessing "_llvm_version[2]" due to: "Index 2 out of bounds of array of size 2." v2: Properly compare LLVM version and set patch version to 0 if < 3.4.1 (Eric). v3: Improve the commit log explanation (Eric). Cc: Dylan Baker Cc: Eric Engestrom Signed-off-by: Andres Gomez Reviewed-by: Dylan Baker Reviewed-by: Emil Velikov Reviewed-by: Eric Engestrom --- diff --git a/meson.build b/meson.build index 308f64cf811..e9928a37931 100644 --- a/meson.build +++ b/meson.build @@ -1037,7 +1037,14 @@ if with_llvm # that for our version checks. # svn suffixes are stripped by meson as of 0.43, and git suffixes are # strippped as of 0.44, but we support older meson versions. - _llvm_patch = _llvm_version[2] + + # 3 digits versions in LLVM only started from 3.4.1 on + if dep_llvm.version().version_compare('>= 3.4.1') + _llvm_patch = _llvm_version[2] + else + _llvm_patch = '0' + endif + if _llvm_patch.endswith('svn') _llvm_patch = _llvm_patch.split('s')[0] elif _llvm_patch.contains('git')