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Search explicitly for python3 with new python search

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* This prevents the build from silently trying to use python2. We also require
  development files which were previously optional.
This commit is contained in:
baldurk
2021-02-24 13:28:14 +00:00
parent f3ae6873ea
commit 7c62b80d89
1 changed files with 9 additions and 6 deletions
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CMakeLists.txt
+9 -6
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@@ -392,15 +392,18 @@ if(ENABLE_QRENDERDOC OR ENABLE_PYRENDERDOC)
# Make sure Python 3 is found
set(Python_ADDITIONAL_VERSIONS 3.9 3.8 3.7 3.6 3.5 3.4)
if(NOT ${CMAKE_VERSION} VERSION_LESS "3.12")
find_package(Python COMPONENTS Interpreter Development)
set(PYTHON_EXECUTABLE ${Python_EXECUTABLE})
set(PYTHON_LIBRARY ${Python_LIBRARIES})
set(PYTHON_INCLUDE_DIR ${Python_INCLUDE_DIRS})
find_package(Python3 COMPONENTS Interpreter Development REQUIRED)
set(PYTHON_EXECUTABLE ${Python3_EXECUTABLE})
set(PYTHON_LIBRARY ${Python3_LIBRARIES})
set(PYTHON_INCLUDE_DIR ${Python3_INCLUDE_DIRS})
else()
find_package(PythonInterp 3 REQUIRED)
find_package(PythonLibs 3 REQUIRED)
endif()
# we also need python3-config for swig
endif()
# we also need python3-config for swig, but it's only for the examples
# so it doesn't matter which one we find as long as we find something!
# Importantly it doesn't have to match the version we link against
if(NOT EXISTS "${PYTHON_EXECUTABLE}-config" AND NOT EXISTS "${PYTHON_EXECUTABLE}.${PYTHON_VERSION_MINOR}-config")
message(FATAL_ERROR "We require ${PYTHON_EXECUTABLE}-config or ${PYTHON_EXECUTABLE}.${PYTHON_VERSION_MINOR}-config to build swig, please install the python dev package for your system.")
endif()