[lld] [reland][libc][cmake] Tidy compiler includes (#66783) (PR #66878)
Guillaume Chatelet via llvm-commits
llvm-commits at lists.llvm.org
Wed Sep 20 02:19:09 PDT 2023
https://github.com/gchatelet created https://github.com/llvm/llvm-project/pull/66878
This is a reland of #66783 a35a3b75b219247eb9ff6784d1a0fe562f72d415 fixing the benchmark breakage.
>From b3150085acea981ca9ed55c161ee9afeccfead20 Mon Sep 17 00:00:00 2001
From: Guillaume Chatelet <gchatelet at google.com>
Date: Tue, 19 Sep 2023 21:16:42 +0000
Subject: [PATCH 1/2] Revert "[libc][cmake] Tidy compiler includes (#66783)"
This reverts commit a35a3b75b219247eb9ff6784d1a0fe562f72d415.
This broke libc benchmarks.
---
libc/CMakeLists.txt | 5 ---
libc/cmake/modules/LLVMLibCObjectRules.cmake | 31 +++++++++++--------
libc/cmake/modules/LLVMLibCTestRules.cmake | 32 +++++++++++++++-----
libc/utils/HdrGen/CMakeLists.txt | 2 +-
libc/utils/LibcTableGenUtil/CMakeLists.txt | 1 -
5 files changed, 43 insertions(+), 28 deletions(-)
diff --git a/libc/CMakeLists.txt b/libc/CMakeLists.txt
index 414be906336bf3f..0cec6fc07d982b4 100644
--- a/libc/CMakeLists.txt
+++ b/libc/CMakeLists.txt
@@ -7,11 +7,6 @@ endif()
include(${LLVM_COMMON_CMAKE_UTILS}/Modules/CMakePolicy.cmake
NO_POLICY_SCOPE)
-# `llvm-project/llvm/CMakeLists.txt` adds the following directive
-# `include_directories( ${LLVM_INCLUDE_DIR} ${LLVM_MAIN_INCLUDE_DIR})`
-# We undo it to be able to precisely control what is getting included.
-set_directory_properties(PROPERTIES INCLUDE_DIRECTORIES "")
-
# Default to C++17
set(CMAKE_CXX_STANDARD 17)
diff --git a/libc/cmake/modules/LLVMLibCObjectRules.cmake b/libc/cmake/modules/LLVMLibCObjectRules.cmake
index c10b81f1af8cba3..994437f55d27407 100644
--- a/libc/cmake/modules/LLVMLibCObjectRules.cmake
+++ b/libc/cmake/modules/LLVMLibCObjectRules.cmake
@@ -151,6 +151,7 @@ function(_build_gpu_objects fq_target_name internal_target_name)
${ARGN}
)
+ set(include_dirs ${LIBC_SOURCE_DIR} ${LIBC_INCLUDE_DIR})
set(common_compile_options ${ADD_GPU_OBJ_COMPILE_OPTIONS})
if(NOT ADD_GPU_OBJ_CXX_STANDARD)
set(ADD_GPU_OBJ_CXX_STANDARD ${CMAKE_CXX_STANDARD})
@@ -188,10 +189,13 @@ function(_build_gpu_objects fq_target_name internal_target_name)
)
target_compile_options(${gpu_target_name} PRIVATE ${compile_options})
- target_include_directories(${gpu_target_name} SYSTEM PRIVATE ${LIBC_INCLUDE_DIR})
- target_include_directories(${gpu_target_name} PRIVATE ${LIBC_SOURCE_DIR})
+ target_include_directories(${gpu_target_name} PRIVATE ${include_dirs})
target_compile_definitions(${gpu_target_name} PRIVATE LIBC_COPT_PUBLIC_PACKAGING)
- set_target_properties(${gpu_target_name} PROPERTIES CXX_STANDARD ${ADD_GPU_OBJ_CXX_STANDARD})
+ set_target_properties(
+ ${gpu_target_name}
+ PROPERTIES
+ CXX_STANDARD ${ADD_GPU_OBJ_CXX_STANDARD}
+ )
if(ADD_GPU_OBJ_DEPENDS)
add_dependencies(${gpu_target_name} ${ADD_GPU_OBJ_DEPENDS})
endif()
@@ -257,8 +261,7 @@ function(_build_gpu_objects fq_target_name internal_target_name)
target_compile_options(${fq_target_name} PRIVATE
"SHELL:-Xclang -fembed-offload-object=${packaged_gpu_binary}")
endforeach()
- target_include_directories(${fq_target_name} SYSTEM PRIVATE ${LIBC_INCLUDE_DIR})
- target_include_directories(${fq_target_name} PRIVATE ${LIBC_SOURCE_DIR})
+ target_include_directories(${fq_target_name} PRIVATE ${include_dirs})
add_dependencies(${fq_target_name}
${full_deps_list} ${packaged_gpu_names} ${stub_target_name})
@@ -282,8 +285,7 @@ function(_build_gpu_objects fq_target_name internal_target_name)
get_nvptx_compile_options(nvptx_options ${LIBC_GPU_TARGET_ARCHITECTURE})
target_compile_options(${internal_target_name} PRIVATE ${nvptx_options})
endif()
- target_include_directories(${internal_target_name} SYSTEM PRIVATE ${LIBC_INCLUDE_DIR})
- target_include_directories(${internal_target_name} PRIVATE ${LIBC_SOURCE_DIR})
+ target_include_directories(${internal_target_name} PRIVATE ${include_dirs})
if(full_deps_list)
add_dependencies(${internal_target_name} ${full_deps_list})
endif()
@@ -367,8 +369,12 @@ function(create_object_library fq_target_name)
${ADD_OBJECT_SRCS}
${ADD_OBJECT_HDRS}
)
- target_include_directories(${fq_target_name} SYSTEM PRIVATE ${LIBC_INCLUDE_DIR})
- target_include_directories(${fq_target_name} PRIVATE ${LIBC_SOURCE_DIR})
+ target_include_directories(
+ ${fq_target_name}
+ PRIVATE
+ ${LIBC_SOURCE_DIR}
+ ${LIBC_INCLUDE_DIR}
+ )
target_compile_options(${fq_target_name} PRIVATE ${compile_options})
endif()
@@ -627,6 +633,7 @@ function(create_entrypoint_object fq_target_name)
"${ADD_ENTRYPOINT_OBJ_FLAGS}"
${ADD_ENTRYPOINT_OBJ_COMPILE_OPTIONS}
)
+ set(include_dirs ${LIBC_SOURCE_DIR} ${LIBC_INCLUDE_DIR})
get_fq_deps_list(fq_deps_list ${ADD_ENTRYPOINT_OBJ_DEPENDS})
set(full_deps_list ${fq_deps_list} libc.src.__support.common)
@@ -663,8 +670,7 @@ function(create_entrypoint_object fq_target_name)
${ADD_ENTRYPOINT_OBJ_HDRS}
)
target_compile_options(${internal_target_name} BEFORE PRIVATE ${common_compile_options})
- target_include_directories(${internal_target_name} SYSTEM PRIVATE ${LIBC_INCLUDE_DIR})
- target_include_directories(${internal_target_name} PRIVATE ${LIBC_SOURCE_DIR})
+ target_include_directories(${internal_target_name} PRIVATE ${include_dirs})
add_dependencies(${internal_target_name} ${full_deps_list})
target_link_libraries(${internal_target_name} ${full_deps_list})
@@ -678,8 +684,7 @@ function(create_entrypoint_object fq_target_name)
${ADD_ENTRYPOINT_OBJ_HDRS}
)
target_compile_options(${fq_target_name} BEFORE PRIVATE ${common_compile_options} -DLIBC_COPT_PUBLIC_PACKAGING)
- target_include_directories(${fq_target_name} SYSTEM PRIVATE ${LIBC_INCLUDE_DIR})
- target_include_directories(${fq_target_name} PRIVATE ${LIBC_SOURCE_DIR})
+ target_include_directories(${fq_target_name} PRIVATE ${include_dirs})
add_dependencies(${fq_target_name} ${full_deps_list})
target_link_libraries(${fq_target_name} ${full_deps_list})
endif()
diff --git a/libc/cmake/modules/LLVMLibCTestRules.cmake b/libc/cmake/modules/LLVMLibCTestRules.cmake
index 3d02a37e96db51f..e1286b4ab963189 100644
--- a/libc/cmake/modules/LLVMLibCTestRules.cmake
+++ b/libc/cmake/modules/LLVMLibCTestRules.cmake
@@ -148,8 +148,12 @@ function(create_libc_unittest fq_target_name)
${LIBC_UNITTEST_SRCS}
${LIBC_UNITTEST_HDRS}
)
- target_include_directories(${fq_build_target_name} SYSTEM PRIVATE ${LIBC_INCLUDE_DIR})
- target_include_directories(${fq_build_target_name} PRIVATE ${LIBC_SOURCE_DIR})
+ target_include_directories(
+ ${fq_build_target_name}
+ PRIVATE
+ ${LIBC_SOURCE_DIR}
+ ${LIBC_INCLUDE_DIR}
+ )
target_compile_options(
${fq_build_target_name}
PRIVATE -fpie ${LIBC_COMPILE_OPTIONS_DEFAULT}
@@ -382,8 +386,12 @@ function(add_libc_fuzzer target_name)
${LIBC_FUZZER_SRCS}
${LIBC_FUZZER_HDRS}
)
- target_include_directories(${fq_target_name} SYSTEM PRIVATE ${LIBC_INCLUDE_DIR})
- target_include_directories(${fq_target_name} PRIVATE ${LIBC_SOURCE_DIR})
+ target_include_directories(
+ ${fq_target_name}
+ PRIVATE
+ ${LIBC_SOURCE_DIR}
+ ${LIBC_INCLUDE_DIR}
+ )
target_link_libraries(${fq_target_name} PRIVATE
${link_object_files}
@@ -508,8 +516,12 @@ function(add_integration_test test_name)
)
set_target_properties(${fq_build_target_name}
PROPERTIES RUNTIME_OUTPUT_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
- target_include_directories(${fq_build_target_name} SYSTEM PRIVATE ${LIBC_INCLUDE_DIR})
- target_include_directories(${fq_build_target_name} PRIVATE ${LIBC_SOURCE_DIR})
+ target_include_directories(
+ ${fq_build_target_name}
+ PRIVATE
+ ${LIBC_SOURCE_DIR}
+ ${LIBC_INCLUDE_DIR}
+ )
target_compile_options(${fq_build_target_name}
PRIVATE -fpie -ffreestanding -fno-exceptions -fno-rtti ${INTEGRATION_TEST_COMPILE_OPTIONS})
# The GPU build requires overriding the default CMake triple and architecture.
@@ -671,8 +683,12 @@ function(add_libc_hermetic_test test_name)
RUNTIME_OUTPUT_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
#OUTPUT_NAME ${fq_target_name}
)
- target_include_directories(${fq_build_target_name} SYSTEM PRIVATE ${LIBC_INCLUDE_DIR})
- target_include_directories(${fq_build_target_name} PRIVATE ${LIBC_SOURCE_DIR})
+ target_include_directories(
+ ${fq_build_target_name}
+ PRIVATE
+ ${LIBC_SOURCE_DIR}
+ ${LIBC_INCLUDE_DIR}
+ )
target_compile_options(${fq_build_target_name}
PRIVATE ${LIBC_HERMETIC_TEST_COMPILE_OPTIONS} ${HERMETIC_TEST_COMPILE_OPTIONS})
diff --git a/libc/utils/HdrGen/CMakeLists.txt b/libc/utils/HdrGen/CMakeLists.txt
index 0ec1cba542d400d..0b1612e8a886ae6 100644
--- a/libc/utils/HdrGen/CMakeLists.txt
+++ b/libc/utils/HdrGen/CMakeLists.txt
@@ -14,7 +14,7 @@ add_tablegen(libc-hdrgen LIBC
PublicAPICommand.h
)
-target_include_directories(libc-hdrgen PRIVATE ${LLVM_INCLUDE_DIR} ${LLVM_MAIN_INCLUDE_DIR})
+target_include_directories(libc-hdrgen PRIVATE ${LIBC_SOURCE_DIR})
target_link_libraries(libc-hdrgen PRIVATE LibcTableGenUtil)
add_subdirectory(PrototypeTestGen)
diff --git a/libc/utils/LibcTableGenUtil/CMakeLists.txt b/libc/utils/LibcTableGenUtil/CMakeLists.txt
index dca6a7bb8306557..222f177ee2f7706 100644
--- a/libc/utils/LibcTableGenUtil/CMakeLists.txt
+++ b/libc/utils/LibcTableGenUtil/CMakeLists.txt
@@ -6,4 +6,3 @@ add_llvm_library(
LINK_COMPONENTS Support TableGen
)
target_include_directories(LibcTableGenUtil PUBLIC ${LIBC_SOURCE_DIR})
-target_include_directories(LibcTableGenUtil PRIVATE ${LLVM_INCLUDE_DIR} ${LLVM_MAIN_INCLUDE_DIR})
>From 4f2c8a4c1a55eb7d5ff24fd9bde4ca321813b7bc Mon Sep 17 00:00:00 2001
From: Guillaume Chatelet <gchatelet at google.com>
Date: Wed, 20 Sep 2023 09:17:09 +0000
Subject: [PATCH 2/2] [reland][libc][cmake] Tidy compiler includes (#66783)
We want to activate `llvm-header-guard` (#66477) but the current CMake
configuration includes paths that should be `isystem`. This PR restricts
the number of `-I` passed to the clang command line and correctly marks
the llvm libc include path as `isystem`.
This is a reland of #66783 a35a3b75b219247eb9ff6784d1a0fe562f72d415 fixing the benchmark breakage.
---
libc/CMakeLists.txt | 5 +++
libc/benchmarks/CMakeLists.txt | 3 ++
libc/cmake/modules/LLVMLibCObjectRules.cmake | 31 ++++++++-----------
libc/cmake/modules/LLVMLibCTestRules.cmake | 32 +++++---------------
libc/utils/HdrGen/CMakeLists.txt | 2 +-
libc/utils/LibcTableGenUtil/CMakeLists.txt | 1 +
6 files changed, 31 insertions(+), 43 deletions(-)
diff --git a/libc/CMakeLists.txt b/libc/CMakeLists.txt
index 0cec6fc07d982b4..414be906336bf3f 100644
--- a/libc/CMakeLists.txt
+++ b/libc/CMakeLists.txt
@@ -7,6 +7,11 @@ endif()
include(${LLVM_COMMON_CMAKE_UTILS}/Modules/CMakePolicy.cmake
NO_POLICY_SCOPE)
+# `llvm-project/llvm/CMakeLists.txt` adds the following directive
+# `include_directories( ${LLVM_INCLUDE_DIR} ${LLVM_MAIN_INCLUDE_DIR})`
+# We undo it to be able to precisely control what is getting included.
+set_directory_properties(PROPERTIES INCLUDE_DIRECTORIES "")
+
# Default to C++17
set(CMAKE_CXX_STANDARD 17)
diff --git a/libc/benchmarks/CMakeLists.txt b/libc/benchmarks/CMakeLists.txt
index 3d665ce1c6e7198..48f5f48ff832248 100644
--- a/libc/benchmarks/CMakeLists.txt
+++ b/libc/benchmarks/CMakeLists.txt
@@ -85,6 +85,9 @@ add_library(libc-benchmark
LibcBenchmark.h
)
+target_include_directories(libc-benchmark
+ PUBLIC ${LLVM_INCLUDE_DIR} ${LLVM_MAIN_INCLUDE_DIR}
+)
target_link_libraries(libc-benchmark
PUBLIC
benchmark::benchmark
diff --git a/libc/cmake/modules/LLVMLibCObjectRules.cmake b/libc/cmake/modules/LLVMLibCObjectRules.cmake
index 994437f55d27407..c10b81f1af8cba3 100644
--- a/libc/cmake/modules/LLVMLibCObjectRules.cmake
+++ b/libc/cmake/modules/LLVMLibCObjectRules.cmake
@@ -151,7 +151,6 @@ function(_build_gpu_objects fq_target_name internal_target_name)
${ARGN}
)
- set(include_dirs ${LIBC_SOURCE_DIR} ${LIBC_INCLUDE_DIR})
set(common_compile_options ${ADD_GPU_OBJ_COMPILE_OPTIONS})
if(NOT ADD_GPU_OBJ_CXX_STANDARD)
set(ADD_GPU_OBJ_CXX_STANDARD ${CMAKE_CXX_STANDARD})
@@ -189,13 +188,10 @@ function(_build_gpu_objects fq_target_name internal_target_name)
)
target_compile_options(${gpu_target_name} PRIVATE ${compile_options})
- target_include_directories(${gpu_target_name} PRIVATE ${include_dirs})
+ target_include_directories(${gpu_target_name} SYSTEM PRIVATE ${LIBC_INCLUDE_DIR})
+ target_include_directories(${gpu_target_name} PRIVATE ${LIBC_SOURCE_DIR})
target_compile_definitions(${gpu_target_name} PRIVATE LIBC_COPT_PUBLIC_PACKAGING)
- set_target_properties(
- ${gpu_target_name}
- PROPERTIES
- CXX_STANDARD ${ADD_GPU_OBJ_CXX_STANDARD}
- )
+ set_target_properties(${gpu_target_name} PROPERTIES CXX_STANDARD ${ADD_GPU_OBJ_CXX_STANDARD})
if(ADD_GPU_OBJ_DEPENDS)
add_dependencies(${gpu_target_name} ${ADD_GPU_OBJ_DEPENDS})
endif()
@@ -261,7 +257,8 @@ function(_build_gpu_objects fq_target_name internal_target_name)
target_compile_options(${fq_target_name} PRIVATE
"SHELL:-Xclang -fembed-offload-object=${packaged_gpu_binary}")
endforeach()
- target_include_directories(${fq_target_name} PRIVATE ${include_dirs})
+ target_include_directories(${fq_target_name} SYSTEM PRIVATE ${LIBC_INCLUDE_DIR})
+ target_include_directories(${fq_target_name} PRIVATE ${LIBC_SOURCE_DIR})
add_dependencies(${fq_target_name}
${full_deps_list} ${packaged_gpu_names} ${stub_target_name})
@@ -285,7 +282,8 @@ function(_build_gpu_objects fq_target_name internal_target_name)
get_nvptx_compile_options(nvptx_options ${LIBC_GPU_TARGET_ARCHITECTURE})
target_compile_options(${internal_target_name} PRIVATE ${nvptx_options})
endif()
- target_include_directories(${internal_target_name} PRIVATE ${include_dirs})
+ target_include_directories(${internal_target_name} SYSTEM PRIVATE ${LIBC_INCLUDE_DIR})
+ target_include_directories(${internal_target_name} PRIVATE ${LIBC_SOURCE_DIR})
if(full_deps_list)
add_dependencies(${internal_target_name} ${full_deps_list})
endif()
@@ -369,12 +367,8 @@ function(create_object_library fq_target_name)
${ADD_OBJECT_SRCS}
${ADD_OBJECT_HDRS}
)
- target_include_directories(
- ${fq_target_name}
- PRIVATE
- ${LIBC_SOURCE_DIR}
- ${LIBC_INCLUDE_DIR}
- )
+ target_include_directories(${fq_target_name} SYSTEM PRIVATE ${LIBC_INCLUDE_DIR})
+ target_include_directories(${fq_target_name} PRIVATE ${LIBC_SOURCE_DIR})
target_compile_options(${fq_target_name} PRIVATE ${compile_options})
endif()
@@ -633,7 +627,6 @@ function(create_entrypoint_object fq_target_name)
"${ADD_ENTRYPOINT_OBJ_FLAGS}"
${ADD_ENTRYPOINT_OBJ_COMPILE_OPTIONS}
)
- set(include_dirs ${LIBC_SOURCE_DIR} ${LIBC_INCLUDE_DIR})
get_fq_deps_list(fq_deps_list ${ADD_ENTRYPOINT_OBJ_DEPENDS})
set(full_deps_list ${fq_deps_list} libc.src.__support.common)
@@ -670,7 +663,8 @@ function(create_entrypoint_object fq_target_name)
${ADD_ENTRYPOINT_OBJ_HDRS}
)
target_compile_options(${internal_target_name} BEFORE PRIVATE ${common_compile_options})
- target_include_directories(${internal_target_name} PRIVATE ${include_dirs})
+ target_include_directories(${internal_target_name} SYSTEM PRIVATE ${LIBC_INCLUDE_DIR})
+ target_include_directories(${internal_target_name} PRIVATE ${LIBC_SOURCE_DIR})
add_dependencies(${internal_target_name} ${full_deps_list})
target_link_libraries(${internal_target_name} ${full_deps_list})
@@ -684,7 +678,8 @@ function(create_entrypoint_object fq_target_name)
${ADD_ENTRYPOINT_OBJ_HDRS}
)
target_compile_options(${fq_target_name} BEFORE PRIVATE ${common_compile_options} -DLIBC_COPT_PUBLIC_PACKAGING)
- target_include_directories(${fq_target_name} PRIVATE ${include_dirs})
+ target_include_directories(${fq_target_name} SYSTEM PRIVATE ${LIBC_INCLUDE_DIR})
+ target_include_directories(${fq_target_name} PRIVATE ${LIBC_SOURCE_DIR})
add_dependencies(${fq_target_name} ${full_deps_list})
target_link_libraries(${fq_target_name} ${full_deps_list})
endif()
diff --git a/libc/cmake/modules/LLVMLibCTestRules.cmake b/libc/cmake/modules/LLVMLibCTestRules.cmake
index e1286b4ab963189..3d02a37e96db51f 100644
--- a/libc/cmake/modules/LLVMLibCTestRules.cmake
+++ b/libc/cmake/modules/LLVMLibCTestRules.cmake
@@ -148,12 +148,8 @@ function(create_libc_unittest fq_target_name)
${LIBC_UNITTEST_SRCS}
${LIBC_UNITTEST_HDRS}
)
- target_include_directories(
- ${fq_build_target_name}
- PRIVATE
- ${LIBC_SOURCE_DIR}
- ${LIBC_INCLUDE_DIR}
- )
+ target_include_directories(${fq_build_target_name} SYSTEM PRIVATE ${LIBC_INCLUDE_DIR})
+ target_include_directories(${fq_build_target_name} PRIVATE ${LIBC_SOURCE_DIR})
target_compile_options(
${fq_build_target_name}
PRIVATE -fpie ${LIBC_COMPILE_OPTIONS_DEFAULT}
@@ -386,12 +382,8 @@ function(add_libc_fuzzer target_name)
${LIBC_FUZZER_SRCS}
${LIBC_FUZZER_HDRS}
)
- target_include_directories(
- ${fq_target_name}
- PRIVATE
- ${LIBC_SOURCE_DIR}
- ${LIBC_INCLUDE_DIR}
- )
+ target_include_directories(${fq_target_name} SYSTEM PRIVATE ${LIBC_INCLUDE_DIR})
+ target_include_directories(${fq_target_name} PRIVATE ${LIBC_SOURCE_DIR})
target_link_libraries(${fq_target_name} PRIVATE
${link_object_files}
@@ -516,12 +508,8 @@ function(add_integration_test test_name)
)
set_target_properties(${fq_build_target_name}
PROPERTIES RUNTIME_OUTPUT_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
- target_include_directories(
- ${fq_build_target_name}
- PRIVATE
- ${LIBC_SOURCE_DIR}
- ${LIBC_INCLUDE_DIR}
- )
+ target_include_directories(${fq_build_target_name} SYSTEM PRIVATE ${LIBC_INCLUDE_DIR})
+ target_include_directories(${fq_build_target_name} PRIVATE ${LIBC_SOURCE_DIR})
target_compile_options(${fq_build_target_name}
PRIVATE -fpie -ffreestanding -fno-exceptions -fno-rtti ${INTEGRATION_TEST_COMPILE_OPTIONS})
# The GPU build requires overriding the default CMake triple and architecture.
@@ -683,12 +671,8 @@ function(add_libc_hermetic_test test_name)
RUNTIME_OUTPUT_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
#OUTPUT_NAME ${fq_target_name}
)
- target_include_directories(
- ${fq_build_target_name}
- PRIVATE
- ${LIBC_SOURCE_DIR}
- ${LIBC_INCLUDE_DIR}
- )
+ target_include_directories(${fq_build_target_name} SYSTEM PRIVATE ${LIBC_INCLUDE_DIR})
+ target_include_directories(${fq_build_target_name} PRIVATE ${LIBC_SOURCE_DIR})
target_compile_options(${fq_build_target_name}
PRIVATE ${LIBC_HERMETIC_TEST_COMPILE_OPTIONS} ${HERMETIC_TEST_COMPILE_OPTIONS})
diff --git a/libc/utils/HdrGen/CMakeLists.txt b/libc/utils/HdrGen/CMakeLists.txt
index 0b1612e8a886ae6..0ec1cba542d400d 100644
--- a/libc/utils/HdrGen/CMakeLists.txt
+++ b/libc/utils/HdrGen/CMakeLists.txt
@@ -14,7 +14,7 @@ add_tablegen(libc-hdrgen LIBC
PublicAPICommand.h
)
-target_include_directories(libc-hdrgen PRIVATE ${LIBC_SOURCE_DIR})
+target_include_directories(libc-hdrgen PRIVATE ${LLVM_INCLUDE_DIR} ${LLVM_MAIN_INCLUDE_DIR})
target_link_libraries(libc-hdrgen PRIVATE LibcTableGenUtil)
add_subdirectory(PrototypeTestGen)
diff --git a/libc/utils/LibcTableGenUtil/CMakeLists.txt b/libc/utils/LibcTableGenUtil/CMakeLists.txt
index 222f177ee2f7706..dca6a7bb8306557 100644
--- a/libc/utils/LibcTableGenUtil/CMakeLists.txt
+++ b/libc/utils/LibcTableGenUtil/CMakeLists.txt
@@ -6,3 +6,4 @@ add_llvm_library(
LINK_COMPONENTS Support TableGen
)
target_include_directories(LibcTableGenUtil PUBLIC ${LIBC_SOURCE_DIR})
+target_include_directories(LibcTableGenUtil PRIVATE ${LLVM_INCLUDE_DIR} ${LLVM_MAIN_INCLUDE_DIR})
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