[Cmake] Unify python variables

FindPythonInterp and FindPythonLibs do two things, they set some
variables (PYTHON_LIBRARIES, PYTHON_INCLUDE_DIRS) and update the cached
variables (PYTHON_LIBRARY, PYTHON_INCLUDE_DIR) which are also used to
specify a custom python installation.

I believe the canonical way to do this is to use the PYTHON_LIBRARIES
and PYTHON_INCLUDE_DIRS variables instead of the cached ones. However,
since the cached variables are accessible from the cache and GUI, this
is a lot less confusing when you're trying to debug why a variable did
or didn't get the value you expected. Furthermore, as far as I can tell,
the implementation uses the cached variables to set their LIBRARIES/DIRS
counterparts. This is also the reason this works today even though we
mix-and-match.

Differential revision: https://reviews.llvm.org/D59968

llvm-svn: 357282
This commit is contained in:
Jonas Devlieghere 2019-03-29 17:35:42 +00:00
parent b4b98a528b
commit ae1cc995e3
3 changed files with 14 additions and 14 deletions

View File

@ -135,10 +135,10 @@ function(find_python_libs_windows)
return()
endif()
file(TO_CMAKE_PATH "${PYTHON_HOME}/Include" PYTHON_INCLUDE_DIRS)
file(TO_CMAKE_PATH "${PYTHON_HOME}/Include" PYTHON_INCLUDE_DIR)
if(EXISTS "${PYTHON_INCLUDE_DIRS}/patchlevel.h")
file(STRINGS "${PYTHON_INCLUDE_DIRS}/patchlevel.h" python_version_str
if(EXISTS "${PYTHON_INCLUDE_DIR}/patchlevel.h")
file(STRINGS "${PYTHON_INCLUDE_DIR}/patchlevel.h" python_version_str
REGEX "^#define[ \t]+PY_VERSION[ \t]+\"[^\"]+\"")
string(REGEX REPLACE "^#define[ \t]+PY_VERSION[ \t]+\"([^\"+]+)[+]?\".*" "\\1"
PYTHONLIBS_VERSION_STRING "${python_version_str}")
@ -146,7 +146,7 @@ function(find_python_libs_windows)
string(REGEX REPLACE "([0-9]+)[.]([0-9]+)[.][0-9]+" "python\\1\\2" PYTHONLIBS_BASE_NAME "${PYTHONLIBS_VERSION_STRING}")
unset(python_version_str)
else()
message("Unable to find ${PYTHON_INCLUDE_DIRS}/patchlevel.h, Python installation is corrupt.")
message("Unable to find ${PYTHON_INCLUDE_DIR}/patchlevel.h, Python installation is corrupt.")
message("Python support will be disabled for this build.")
set(LLDB_DISABLE_PYTHON 1 PARENT_SCOPE)
return()
@ -225,12 +225,12 @@ function(find_python_libs_windows)
set (PYTHON_EXECUTABLE ${PYTHON_EXECUTABLE} PARENT_SCOPE)
set (PYTHON_LIBRARY ${PYTHON_LIBRARY} PARENT_SCOPE)
set (PYTHON_DLL ${PYTHON_DLL} PARENT_SCOPE)
set (PYTHON_INCLUDE_DIRS ${PYTHON_INCLUDE_DIRS} PARENT_SCOPE)
set (PYTHON_INCLUDE_DIR ${PYTHON_INCLUDE_DIR} PARENT_SCOPE)
message("-- LLDB Found PythonExecutable: ${PYTHON_RELEASE_EXE} and ${PYTHON_DEBUG_EXE}")
message("-- LLDB Found PythonLibs: ${PYTHON_RELEASE_LIB} and ${PYTHON_DEBUG_LIB}")
message("-- LLDB Found PythonDLL: ${PYTHON_RELEASE_DLL} and ${PYTHON_DEBUG_DLL}")
message("-- LLDB Found PythonIncludeDirs: ${PYTHON_INCLUDE_DIRS}")
message("-- LLDB Found PythonIncludeDirs: ${PYTHON_INCLUDE_DIR}")
endfunction(find_python_libs_windows)
if (NOT LLDB_DISABLE_PYTHON)
@ -243,17 +243,19 @@ if (NOT LLDB_DISABLE_PYTHON)
add_definitions( -DLLDB_PYTHON_HOME="${LLDB_PYTHON_HOME}" )
endif()
else()
find_package(PythonLibs REQUIRED)
find_package(PythonInterp)
find_package(PythonLibs)
endif()
if (PYTHON_INCLUDE_DIRS)
include_directories(${PYTHON_INCLUDE_DIRS})
if (PYTHON_INCLUDE_DIR)
include_directories(${PYTHON_INCLUDE_DIR})
endif()
endif()
if (LLDB_DISABLE_PYTHON)
unset(PYTHON_INCLUDE_DIRS)
unset(PYTHON_INCLUDE_DIR)
unset(PYTHON_LIBRARY)
unset(PYTHON_EXECUTABLE)
add_definitions( -DLLDB_DISABLE_PYTHON )
endif()

View File

@ -9,8 +9,6 @@ set(SWIG_HEADERS
${LLDB_SOURCE_DIR}/include/lldb/lldb-versioning.h
)
include(FindPythonInterp)
if(LLDB_BUILD_FRAMEWORK)
set(framework_arg --framework --target-platform Darwin)
endif()

View File

@ -27,7 +27,7 @@ if(Backtrace_FOUND)
endif()
if (NOT LLDB_DISABLE_PYTHON AND NOT LLVM_BUILD_STATIC)
list(APPEND LLDB_SYSTEM_LIBS ${PYTHON_LIBRARIES})
list(APPEND LLDB_SYSTEM_LIBS ${PYTHON_LIBRARY})
endif()
list(APPEND LLDB_SYSTEM_LIBS ${system_libs})