build: accept both python 3 and python 2

[ginac.git] / ginac / CMakeLists.txt

diff --git a/ginac/CMakeLists.txt b/ginac/CMakeLists.txt
index 1bad4ce7886b417e5bb42c21b6f6a9de8589c514..07d8530ecae6b3a7ca1a08f0e98d022a6737cbab 100644 (file)
--- a/ginac/CMakeLists.txt
+++ b/ginac/CMakeLists.txt
@@ -168,11 +168,11 @@ install(FILES ${ginaclib_public_headers} DESTINATION "${INCLUDE_INSTALL_DIR}/gin
 
 add_custom_command(
        OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/function.h
-       COMMAND python3 ${CMAKE_CURRENT_SOURCE_DIR}/function.py -o ${CMAKE_CURRENT_BINARY_DIR}/function.h ${CMAKE_CURRENT_SOURCE_DIR}/function.hppy
+       COMMAND ${PYTHON} ${CMAKE_CURRENT_SOURCE_DIR}/function.py -o ${CMAKE_CURRENT_BINARY_DIR}/function.h ${CMAKE_CURRENT_SOURCE_DIR}/function.hppy
        DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/function.hppy ${CMAKE_CURRENT_SOURCE_DIR}/function.py)
 
 add_custom_command(
        OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/function.cpp
-       COMMAND python3 ${CMAKE_CURRENT_SOURCE_DIR}/function.py -o ${CMAKE_CURRENT_BINARY_DIR}/function.cpp ${CMAKE_CURRENT_SOURCE_DIR}/function.cppy
+       COMMAND ${PYTHON} ${CMAKE_CURRENT_SOURCE_DIR}/function.py -o ${CMAKE_CURRENT_BINARY_DIR}/function.cpp ${CMAKE_CURRENT_SOURCE_DIR}/function.cppy
        DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/function.h ${CMAKE_CURRENT_SOURCE_DIR}/function.cppy ${CMAKE_CURRENT_SOURCE_DIR}/function.py)