Generate a clang CompilationDatabase when running CMake

d0k · d0k · commit 2c5712051b31 · 2015-12-16T18:17:45.000Z
This generates a compile_commands.json file, which tells tools like
YouCompleteMe and clang_complete exactly how to build each source file.

Patch by Justin Lebar!

llvm-svn: 255789
diff --git a/llvm/CMakeLists.txt b/llvm/CMakeLists.txt
@@ -86,6 +86,10 @@ set(CMAKE_MODULE_PATH
   "${CMAKE_CURRENT_SOURCE_DIR}/cmake/modules"
   )
 
+# Generate a CompilationDatabase (compile_commands.json file) for our build,
+# for use by clang_complete, YouCompleteMe, etc.
+set(CMAKE_EXPORT_COMPILE_COMMANDS 1)
+
 option(LLVM_INSTALL_UTILS "Include utility binaries in the 'install' target." OFF)
 
 option(LLVM_INSTALL_TOOLCHAIN_ONLY "Only include toolchain files in the 'install' target." OFF)

Original file line number	Diff line number	Diff line change
`@@ -86,6 +86,10 @@ set(CMAKE_MODULE_PATH`
`86`	`86`	`"${CMAKE_CURRENT_SOURCE_DIR}/cmake/modules"`
`87`	`87`	`)`
`88`	`88`
	`89`	`+# Generate a CompilationDatabase (compile_commands.json file) for our build,`
	`90`	`+# for use by clang_complete, YouCompleteMe, etc.`
	`91`	`+set(CMAKE_EXPORT_COMPILE_COMMANDS 1)`
	`92`	`+`
`89`	`93`	`option(LLVM_INSTALL_UTILS "Include utility binaries in the 'install' target." OFF)`
`90`	`94`
`91`	`95`	`option(LLVM_INSTALL_TOOLCHAIN_ONLY "Only include toolchain files in the 'install' target." OFF)`