Fix detection of sphinx-rtd-theme
Upstreaming fix from Debian.
https: //github.com/ceres-solver/ceres-solver/issues/809
Change-Id: I0e2f90a405a56ceffdda37f70d6e1ac853e176f1
diff --git a/cmake/FindSphinx.cmake b/cmake/FindSphinx.cmake
index 2ba3c81..fa5925d 100644
--- a/cmake/FindSphinx.cmake
+++ b/cmake/FindSphinx.cmake
@@ -50,7 +50,7 @@
if(PYTHONINTERP_FOUND)
# Check for sphinx theme dependency for documentation
execute_process(
- COMMAND ${PYTHON_EXECUTABLE} -m pip show sphinx-rtd-theme
+ COMMAND ${PYTHON_EXECUTABLE} -c "import sphinx_rtd_theme"
RESULT_VARIABLE SPHINX_RTD_THEME
OUTPUT_QUIET
ERROR_QUIET