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use found python executable for launching sphinx-build

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there is chance that the distro install python as python3, in that case
the shebang of
```
```
in build.py won't work.

Signed-off-by: Kefu Chai <tchaikov@gmail.com>
This commit is contained in:
Kefu Chai 2018-10-12 21:09:44 +08:00 committed by Victor Zverovich
parent 07200f445a
commit 10e03e695b
1 changed files with 3 additions and 1 deletions
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4
doc/CMakeLists.txt
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@ -4,11 +4,13 @@ if (NOT DOXYGEN)
return () return ()
endif () endif ()
find_package(PythonInterp
QUIET REQUIRED)
find_program(SPHINX_EXECUTABLE find_program(SPHINX_EXECUTABLE
NAMES sphinx-build sphinx-build-3) NAMES sphinx-build sphinx-build-3)
add_custom_target(doc add_custom_target(doc
COMMAND ${CMAKE_COMMAND} -E env SPHINX_EXECUTABLE=${SPHINX_EXECUTABLE} COMMAND ${CMAKE_COMMAND} -E env SPHINX_EXECUTABLE=${SPHINX_EXECUTABLE}
${CMAKE_CURRENT_SOURCE_DIR}/build.py ${FMT_VERSION}) ${PYTHON_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/build.py ${FMT_VERSION}
SOURCES api.rst syntax.rst build.py conf.py _templates/layout.html) SOURCES api.rst syntax.rst build.py conf.py _templates/layout.html)
install(DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/html/ install(DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/html/