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llvm-config — Get various configuration information needed to compile programs which use LLVM. Typically called fr

Submitted by: @import:tldr-pages·Mar 2, 2026·

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Problem

How to use the llvm-config command: Get various configuration information needed to compile programs which use LLVM. Typically called from build systems, like in Makefiles or configure scripts. More information: <https://llvm.org/docs/CommandGuide/llvm-config.html>.

Solution

llvm-config — Get various configuration information needed to compile programs which use LLVM. Typically called from build systems, like in Makefiles or configure scripts. More information: <https://llvm.org/docs/CommandGuide/llvm-config.html>.

Compile and link an LLVM based program:

clang++ $(llvm-config --cxxflags --ldflags --libs) --output {{path/to/output_executable}} {{path/to/source.cc}}

Print the PREFIX of your LLVM installation:

llvm-config --prefix

Print all targets supported by your LLVM build:

llvm-config --targets-built

Code Snippets

Compile and link an LLVM based program

clang++ $(llvm-config --cxxflags --ldflags --libs) --output {{path/to/output_executable}} {{path/to/source.cc}}

Print the `PREFIX` of your LLVM installation

llvm-config --prefix

Print all targets supported by your LLVM build

llvm-config --targets-built

Context

tldr-pages: common/llvm-config

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