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-rw-r--r--CMakeScripts/UseGlibMarshal.cmake6
1 files changed, 5 insertions, 1 deletions
diff --git a/CMakeScripts/UseGlibMarshal.cmake b/CMakeScripts/UseGlibMarshal.cmake
index 63d501a57..c9481a4f6 100644
--- a/CMakeScripts/UseGlibMarshal.cmake
+++ b/CMakeScripts/UseGlibMarshal.cmake
@@ -22,7 +22,11 @@ MACRO(GLIB_MARSHAL GLIB_MARSHAL_PREFIX GLIB_MARSHAL_FILE GLIB_MARSHAL_OUTPUT_LOC
OUTPUT_VARIABLE GLIB_MARSHAL_OUTPUT_CPP )
# check whether the generated file is the same as the existing one
- FILE(READ ${CMAKE_CURRENT_BINARY_DIR}/${GLIB_MARSHAL_FILE}.h GLIB_MARSHAL_HEADER_OLD)
+ IF(EXISTS ${CMAKE_CURRENT_BINARY_DIR}/${GLIB_MARSHAL_FILE}.h)
+ FILE(READ ${CMAKE_CURRENT_BINARY_DIR}/${GLIB_MARSHAL_FILE}.h GLIB_MARSHAL_HEADER_OLD)
+ ELSE()
+ SET(GLIB_MARSHAL_HEADER_OLD "")
+ ENDIF()
IF(NOT GLIB_MARSHAL_HEADER_OLD STREQUAL GLIB_MARSHAL_OUTPUT_HEADER)
MESSAGE(STATUS "${GLIB_MARSHAL_FILE}.h changed; overwriting")
FILE(WRITE ${CMAKE_CURRENT_BINARY_DIR}/${GLIB_MARSHAL_FILE}.h "${GLIB_MARSHAL_OUTPUT_HEADER}")