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-rw-r--r--Tests/CustomCommand/CMakeLists.txt7
-rw-r--r--Tests/CustomCommand/check_mark.cmake5
2 files changed, 12 insertions, 0 deletions
diff --git a/Tests/CustomCommand/CMakeLists.txt b/Tests/CustomCommand/CMakeLists.txt
index 602f69b..83d2de2 100644
--- a/Tests/CustomCommand/CMakeLists.txt
+++ b/Tests/CustomCommand/CMakeLists.txt
@@ -230,6 +230,8 @@ ADD_EXECUTABLE(check_command_line
${CMAKE_CURRENT_BINARY_DIR}/check_command_line.c)
ADD_CUSTOM_COMMAND(
OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/command_line_check
+ COMMAND ${CMAKE_COMMAND} -DMARK_FILE=${CMAKE_CURRENT_BINARY_DIR}/check_mark.txt
+ -P ${CMAKE_CURRENT_SOURCE_DIR}/check_mark.cmake
COMMAND ${EXECUTABLE_OUTPUT_PATH}/${CMAKE_CFG_INTDIR}/check_command_line
${CHECK_ARGS}
VERBATIM
@@ -246,3 +248,8 @@ ADD_CUSTOM_TARGET(do_check_command_line ALL
COMMENT "Checking custom target command line escapes ($dollar-signs$)"
)
ADD_DEPENDENCIES(do_check_command_line check_command_line)
+
+ADD_CUSTOM_TARGET(pre_check_command_line
+ COMMAND ${CMAKE_COMMAND} -E remove ${CMAKE_CURRENT_BINARY_DIR}/check_mark.txt
+ )
+ADD_DEPENDENCIES(do_check_command_line pre_check_command_line)
diff --git a/Tests/CustomCommand/check_mark.cmake b/Tests/CustomCommand/check_mark.cmake
new file mode 100644
index 0000000..8b0551f
--- /dev/null
+++ b/Tests/CustomCommand/check_mark.cmake
@@ -0,0 +1,5 @@
+IF(EXISTS "${MARK_FILE}")
+ MESSAGE(FATAL_ERROR "Custom command run more than once!")
+ELSE(EXISTS "${MARK_FILE}")
+ FILE(WRITE "${MARK_FILE}" "check for running custom command twice\n")
+ENDIF(EXISTS "${MARK_FILE}")