- if(EXISTS ${CMAKE_BINARY_DIR}/conftestval)
- file(READ ${CMAKE_BINARY_DIR}/conftestval MAKECONTEXT_ADDR_SIZE)
- string(REPLACE "\n" "" MAKECONTEXT_ADDR_SIZE "${MAKECONTEXT_ADDR_SIZE}")
- string(REGEX MATCH ;^.*,;MAKECONTEXT_ADDR "${MAKECONTEXT_ADDR_SIZE}")
- string(REGEX MATCH ;,.*$; MAKECONTEXT_SIZE "${MAKECONTEXT_ADDR_SIZE}")
- string(REPLACE "," "" makecontext_addr "${MAKECONTEXT_ADDR}")
- string(REPLACE "," "" makecontext_size "${MAKECONTEXT_SIZE}")
- set(pth_skaddr_makecontext "#define pth_skaddr_makecontext(skaddr,sksize) (${makecontext_addr})")
- set(pth_sksize_makecontext "#define pth_sksize_makecontext(skaddr,sksize) (${makecontext_size})")
- else()
- # message(FATAL_ERROR "makecontext is not compilable")
- endif()
-endif()
-
-#--------------------------------------------------------------------------------------------------
-
-### check for stackgrowth
-if (NOT CMAKE_CROSSCOMPILING)
- try_run(RUN_stackgrowth_VAR COMPILE_stackgrowth_VAR
- ${CMAKE_BINARY_DIR}
- ${CMAKE_HOME_DIRECTORY}/tools/cmake/test_prog/prog_stackgrowth.c
- RUN_OUTPUT_VARIABLE stack
- COPY_FILE test_stackgrowth
- )
-endif()
-if("${stack}" STREQUAL "down")
- set(PTH_STACKGROWTH "-1")
-elseif("${stack}" STREQUAL "up")
- set(PTH_STACKGROWTH "1")
-else()
- if("${CMAKE_SYSTEM_PROCESSOR}" STREQUAL "x86_64")
- set(PTH_STACKGROWTH "-1")
- elseif("${CMAKE_SYSTEM_PROCESSOR}" STREQUAL "i686")
- set(PTH_STACKGROWTH "-1")
- else()
- message(FATAL_ERROR "Could not figure out the stack direction. Test prog returned: ${stack}; CMAKE_SYSTEM_PROCESSOR: ${CMAKE_SYSTEM_PROCESSOR}.")
- endif()
-endif()
-# If the test ran well, remove the test binary
-execute_process(COMMAND ${CMAKE_COMMAND} -E remove test_stackgrowth)
-
-###############
-## System checks
-##
-
-### check for addr2line
-find_path(ADDR2LINE NAMES addr2line PATHS NO_DEFAULT_PATHS )
-if(ADDR2LINE)
- set(ADDR2LINE "${ADDR2LINE}/addr2line")
-endif()
-
-### File to create
-
-configure_file("${CMAKE_HOME_DIRECTORY}/src/context_sysv_config.h.in"
- "${CMAKE_BINARY_DIR}/src/context_sysv_config.h" @ONLY IMMEDIATE)
+# Avoid triggering a (full) rebuild by touching the files if they did not really change
+configure_file("${CMAKE_HOME_DIRECTORY}/tools/cmake/src/internal_config.h.in" "${CMAKE_BINARY_DIR}/src/internal_config.h.generated" @ONLY IMMEDIATE)
+configure_file("${CMAKE_HOME_DIRECTORY}/include/simgrid_config.h.in" "${CMAKE_BINARY_DIR}/include/simgrid_config.h.generated" @ONLY IMMEDIATE)
+execute_process(COMMAND ${CMAKE_COMMAND} -E copy_if_different ${CMAKE_BINARY_DIR}/src/internal_config.h.generated ${CMAKE_BINARY_DIR}/src/internal_config.h)
+execute_process(COMMAND ${CMAKE_COMMAND} -E copy_if_different ${CMAKE_BINARY_DIR}/include/simgrid_config.h.generated ${CMAKE_BINARY_DIR}/include/simgrid_config.h)
+file(REMOVE ${CMAKE_BINARY_DIR}/src/internal_config.h.generated)
+file(REMOVE ${CMAKE_BINARY_DIR}/include/simgrid_config.h.generated)