Initial commit
Change-Id: I6a4444e3c193dae437cd7929f4c39aba7b749efa
diff --git a/cmake/Modules/CMakeUserUseBison.cmake b/cmake/Modules/CMakeUserUseBison.cmake
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+# - Look for GNU Bison, the parser generator
+# Based off a news post from Andy Cedilnik at Kitware
+# Defines the following:
+# BISON_EXECUTABLE - path to the bison executable
+# BISON_FILE - parse a file with bison
+# BISON_PREFIX_OUTPUTS - Set to true to make BISON_FILE produce prefixed
+# symbols in the generated output based on filename.
+# So for ${filename}.y, you'll get ${filename}parse(), etc.
+# instead of yyparse().
+# BISON_GENERATE_DEFINES - Set to true to make BISON_FILE output the matching
+# .h file for a .c file. You want this if you're using
+# flex.
+
+IF(NOT DEFINED BISON_PREFIX_OUTPUTS)
+ SET(BISON_PREFIX_OUTPUTS FALSE)
+ENDIF(NOT DEFINED BISON_PREFIX_OUTPUTS)
+
+IF(NOT DEFINED BISON_GENERATE_DEFINES)
+ SET(BISON_GENERATE_DEFINES FALSE)
+ENDIF(NOT DEFINED BISON_GENERATE_DEFINES)
+
+IF(NOT BISON_EXECUTABLE)
+ MESSAGE(STATUS "Looking for bison")
+ FIND_PROGRAM(BISON_EXECUTABLE bison)
+ IF(BISON_EXECUTABLE)
+ MESSAGE(STATUS "Looking for bison -- ${BISON_EXECUTABLE}")
+ ENDIF(BISON_EXECUTABLE)
+ MARK_AS_ADVANCED(BISON_EXECUTABLE)
+ENDIF(NOT BISON_EXECUTABLE)
+
+IF(BISON_EXECUTABLE)
+ MACRO(BISON_FILE FILENAME)
+ GET_FILENAME_COMPONENT(PATH "${FILENAME}" PATH)
+ IF("${PATH}" STREQUAL "")
+ SET(PATH_OPT "")
+ ELSE("${PATH}" STREQUAL "")
+ SET(PATH_OPT "/${PATH}")
+ ENDIF("${PATH}" STREQUAL "")
+ GET_FILENAME_COMPONENT(HEAD "${FILENAME}" NAME_WE)
+ IF(NOT EXISTS "${CMAKE_CURRENT_BINARY_DIR}${PATH_OPT}")
+ FILE(MAKE_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}${PATH_OPT}")
+ ENDIF(NOT EXISTS "${CMAKE_CURRENT_BINARY_DIR}${PATH_OPT}")
+ IF(BISON_PREFIX_OUTPUTS)
+ SET(PREFIX "${HEAD}")
+ ELSE(BISON_PREFIX_OUTPUTS)
+ SET(PREFIX "yy")
+ ENDIF(BISON_PREFIX_OUTPUTS)
+ SET(OUTFILE "${CMAKE_CURRENT_BINARY_DIR}${PATH_OPT}/${HEAD}.tab.c")
+ IF(BISON_GENERATE_DEFINES)
+ SET(HEADER "${CMAKE_CURRENT_BINARY_DIR}${PATH_OPT}/${HEAD}.tab.h")
+ ADD_CUSTOM_COMMAND(
+ OUTPUT "${OUTFILE}" "${HEADER}"
+ COMMAND "${BISON_EXECUTABLE}"
+ ARGS "--name-prefix=${PREFIX}"
+ "--defines"
+ "--output-file=${OUTFILE}"
+ "${CMAKE_CURRENT_SOURCE_DIR}/${FILENAME}"
+ DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/${FILENAME}")
+ SET_SOURCE_FILES_PROPERTIES("${OUTFILE}" "${HEADER}" PROPERTIES GENERATED TRUE)
+ SET_SOURCE_FILES_PROPERTIES("${HEADER}" PROPERTIES HEADER_FILE_ONLY TRUE)
+ ELSE(BISON_GENERATE_DEFINES)
+ ADD_CUSTOM_COMMAND(
+ OUTPUT "${OUTFILE}"
+ COMMAND "${BISON_EXECUTABLE}"
+ ARGS "--name-prefix=${PREFIX}"
+ "--output-file=${OUTFILE}"
+ "${CMAKE_CURRENT_SOURCE_DIR}/${FILENAME}"
+ DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/${FILENAME}")
+ SET_SOURCE_FILES_PROPERTIES("${OUTFILE}" PROPERTIES GENERATED TRUE)
+ ENDIF(BISON_GENERATE_DEFINES)
+ ENDMACRO(BISON_FILE)
+ENDIF(BISON_EXECUTABLE)