When using `LLVM_ENABLE_RUNTIMES=libc` we need to perform a few extra
steps to include LLVM utilities similar to if we were performing a
standalone build. Libc depends on the tablegen utilities and the LLVM
libraries when performing a full build. When using an
`LLVM_ENABLE_PROJECTS=libc` build these are included as a part of the
greater LLVM build, but here we need to perform it maunally. This patch
should allow using `LLVM_LIBC_FULL_BUILD=ON` when building with
runtimes.
Reviewed By: lntue
Differential Revision: https://reviews.llvm.org/D138040
# The top-level directory in which libc is being built.
set(LIBC_BUILD_DIR ${CMAKE_CURRENT_BINARY_DIR})
+# For a runtimes build we need to manually include tablgen and LLVM directories.
+if ("libc" IN_LIST LLVM_ENABLE_RUNTIMES)
+ include(TableGen)
+ set(LLVM_LIBC_INCLUDE_DIRS ${LLVM_MAIN_INCLUDE_DIR} ${LLVM_BINARY_DIR}/include)
+endif()
+
# Path libc/scripts directory.
set(LIBC_BUILD_SCRIPTS_DIR "${LIBC_SOURCE_DIR}/utils/build_scripts")
PublicAPICommand.h
)
-target_include_directories(libc-hdrgen PRIVATE ${LIBC_SOURCE_DIR})
+target_include_directories(libc-hdrgen PRIVATE ${LIBC_SOURCE_DIR} ${LLVM_LIBC_INCLUDE_DIRS})
target_link_libraries(libc-hdrgen PRIVATE LibcTableGenUtil)
add_subdirectory(PrototypeTestGen)
APIIndexer.h
LINK_COMPONENTS Support TableGen
)
-target_include_directories(LibcTableGenUtil PUBLIC ${LIBC_SOURCE_DIR})
+target_include_directories(LibcTableGenUtil PUBLIC ${LIBC_SOURCE_DIR} ${LLVM_LIBC_INCLUDE_DIRS})