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Fallback to clang in PATH with meson

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Some distributions put clang into a different path than the llvm
binary path.

For example, this is the case on NixOS / nixpkgs, which failed to find
clang with meson before this patch.

Author: Wolfgang Walther
Reviewed-by: Nazir Bilal Yavuz, Alvaro Herrera, Peter Eisentraut
Reviewed-by: Tristan Partin
Discussion: https://www.postgresql.org/message-id/ca8f37e1-a2c3-40e2-91f6-59c3d3652ad4@technowledgy.de
Backpatch: 16-, where meson support was added
This commit is contained in:
Heikki Linnakangas 2024-07-27 13:53:11 +03:00
parent cc90d7823a
commit 23be520632
1 changed files with 4 additions and 1 deletions
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5
meson.build
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@ -805,7 +805,10 @@ if add_languages('cpp', required: llvmopt, native: false)
llvm_binpath = llvm.get_variable(configtool: 'bindir')
ccache = find_program('ccache', native: true, required: false)
clang = find_program(llvm_binpath / 'clang', required: true)
# Some distros put LLVM and clang in different paths, so fallback to
# find via PATH, too.
clang = find_program(llvm_binpath / 'clang', 'clang', required: true)
endif
elif llvmopt.auto()
message('llvm requires a C++ compiler')