Change cmake for build doc

Check the system requirements

Change cmake for build doc
Check the system requirements
6d8cc88d · yuyang18 · 8231960f · 6d8cc88d
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CMakeLists.txt CMakeLists.txt +2 -1

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--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -25,7 +25,6 @@ message(STATUS "CXX compiler: ${CMAKE_CXX_COMPILER}, version: "
 message(STATUS "C compiler: ${CMAKE_C_COMPILER}, version: "
        "${CMAKE_C_COMPILER_ID} ${CMAKE_C_COMPILER_VERSION}")
-find_package(Sphinx)
 if(NOT CMAKE_CROSSCOMPILING)
    find_package(CUDA QUIET)
 endif(NOT CMAKE_CROSSCOMPILING)
@@ -226,5 +225,7 @@ if(WITH_PYTHON)
 endif()
 if(WITH_DOC)
+    find_package(Sphinx REQUIRED)
+    find_python_module(recommonmark REQUIRED)
    add_subdirectory(doc)
 endif()