| 1 |
# Copyright (c) 2009, Whispersoft s.r.l. |
|---|
| 2 |
# All rights reserved. |
|---|
| 3 |
# |
|---|
| 4 |
# Redistribution and use in source and binary forms, with or without |
|---|
| 5 |
# modification, are permitted provided that the following conditions are |
|---|
| 6 |
# met: |
|---|
| 7 |
# |
|---|
| 8 |
# * Redistributions of source code must retain the above copyright |
|---|
| 9 |
# notice, this list of conditions and the following disclaimer. |
|---|
| 10 |
# * Redistributions in binary form must reproduce the above |
|---|
| 11 |
# copyright notice, this list of conditions and the following disclaimer |
|---|
| 12 |
# in the documentation and/or other materials provided with the |
|---|
| 13 |
# distribution. |
|---|
| 14 |
# * Neither the name of Whispersoft s.r.l. nor the names of its |
|---|
| 15 |
# contributors may be used to endorse or promote products derived from |
|---|
| 16 |
# this software without specific prior written permission. |
|---|
| 17 |
# |
|---|
| 18 |
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
|---|
| 19 |
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
|---|
| 20 |
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
|---|
| 21 |
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
|---|
| 22 |
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
|---|
| 23 |
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
|---|
| 24 |
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
|---|
| 25 |
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
|---|
| 26 |
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
|---|
| 27 |
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
|---|
| 28 |
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
|---|
| 29 |
# |
|---|
| 30 |
# - Look for GNU Bison, the parser generator |
|---|
| 31 |
# Based off a news post from Andy Cedilnik at Kitware |
|---|
| 32 |
# Defines the following: |
|---|
| 33 |
# BISON_EXECUTABLE - path to the bison executable |
|---|
| 34 |
# BISON_FILE - parse a file with bison |
|---|
| 35 |
# BISON_PREFIX_OUTPUTS - Set to true to make BISON_FILE produce prefixed |
|---|
| 36 |
# symbols in the generated output based on filename. |
|---|
| 37 |
# So for ${filename}.y, you'll get ${filename}parse(), etc. |
|---|
| 38 |
# instead of yyparse(). |
|---|
| 39 |
# BISON_GENERATE_DEFINES - Set to true to make BISON_FILE output the matching |
|---|
| 40 |
# .h file for a .c file. You want this if you're using |
|---|
| 41 |
# flex. |
|---|
| 42 |
|
|---|
| 43 |
if(NOT DEFINED BISON_PREFIX_OUTPUTS) |
|---|
| 44 |
set(BISON_PREFIX_OUTPUTS FALSE) |
|---|
| 45 |
endif(NOT DEFINED BISON_PREFIX_OUTPUTS) |
|---|
| 46 |
|
|---|
| 47 |
if(NOT DEFINED BISON_GENERATE_DEFINES) |
|---|
| 48 |
set(BISON_GENERATE_DEFINES FALSE) |
|---|
| 49 |
endif(NOT DEFINED BISON_GENERATE_DEFINES) |
|---|
| 50 |
|
|---|
| 51 |
if(NOT BISON_EXECUTABLE) |
|---|
| 52 |
message(STATUS "Looking for bison") |
|---|
| 53 |
find_program(BISON_EXECUTABLE bison) |
|---|
| 54 |
if(BISON_EXECUTABLE) |
|---|
| 55 |
message(STATUS "Looking for bison -- ${BISON_EXECUTABLE}") |
|---|
| 56 |
endif(BISON_EXECUTABLE) |
|---|
| 57 |
endif(NOT BISON_EXECUTABLE) |
|---|
| 58 |
|
|---|
| 59 |
if(BISON_EXECUTABLE) |
|---|
| 60 |
macro(BISON_FILE FILENAME) |
|---|
| 61 |
get_filename_component(PATH "${FILENAME}" PATH) |
|---|
| 62 |
if("${PATH}" STREQUAL "") |
|---|
| 63 |
set(PATH_OPT "") |
|---|
| 64 |
else("${PATH}" STREQUAL "") |
|---|
| 65 |
set(PATH_OPT "/${PATH}") |
|---|
| 66 |
endif("${PATH}" STREQUAL "") |
|---|
| 67 |
|
|---|
| 68 |
get_filename_component(HEAD "${FILENAME}" NAME_WE) |
|---|
| 69 |
if(NOT EXISTS "${CMAKE_CURRENT_BINARY_DIR}${PATH_OPT}") |
|---|
| 70 |
file(MAKE_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}${PATH_OPT}") |
|---|
| 71 |
endif(NOT EXISTS "${CMAKE_CURRENT_BINARY_DIR}${PATH_OPT}") |
|---|
| 72 |
|
|---|
| 73 |
if(BISON_PREFIX_OUTPUTS) |
|---|
| 74 |
set(PREFIX "${HEAD}") |
|---|
| 75 |
else(BISON_PREFIX_OUTPUTS) |
|---|
| 76 |
set(PREFIX "yy") |
|---|
| 77 |
endif(BISON_PREFIX_OUTPUTS) |
|---|
| 78 |
|
|---|
| 79 |
set(OUTFILE "${CMAKE_CURRENT_BINARY_DIR}${PATH_OPT}/${HEAD}.tab.c") |
|---|
| 80 |
if(BISON_GENERATE_DEFINES) |
|---|
| 81 |
set(HEADER "${CMAKE_CURRENT_BINARY_DIR}${PATH_OPT}/${HEAD}.tab.h") |
|---|
| 82 |
add_custom_command( |
|---|
| 83 |
OUTPUT "${OUTFILE}" "${HEADER}" |
|---|
| 84 |
COMMAND "${BISON_EXECUTABLE}" |
|---|
| 85 |
ARGS "--name-prefix=${PREFIX}" |
|---|
| 86 |
"--defines" |
|---|
| 87 |
"--output-file=${OUTFILE}" |
|---|
| 88 |
"${CMAKE_CURRENT_SOURCE_DIR}/${FILENAME}" |
|---|
| 89 |
DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/${FILENAME}") |
|---|
| 90 |
set_source_files_properties("${OUTFILE}" "${HEADER}" |
|---|
| 91 |
PROPERTIES GENERATED TRUE) |
|---|
| 92 |
set_source_files_properties("${HEADER}" PROPERTIES HEADER_FILE_ONLY TRUE) |
|---|
| 93 |
else(BISON_GENERATE_DEFINES) |
|---|
| 94 |
add_custom_command( |
|---|
| 95 |
OUTPUT "${OUTFILE}" |
|---|
| 96 |
COMMAND "${BISON_EXECUTABLE}" |
|---|
| 97 |
ARGS "--name-prefix=${PREFIX}" |
|---|
| 98 |
"--output-file=${OUTFILE}" |
|---|
| 99 |
"${CMAKE_CURRENT_SOURCE_DIR}/${FILENAME}" |
|---|
| 100 |
DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/${FILENAME}") |
|---|
| 101 |
set_source_files_properties("${OUTFILE}" PROPERTIES GENERATED TRUE) |
|---|
| 102 |
endif(BISON_GENERATE_DEFINES) |
|---|
| 103 |
endmacro(BISON_FILE) |
|---|
| 104 |
else(BISON_EXECUTABLE) |
|---|
| 105 |
message(FATAL_ERROR "=========> Could NOT find Bison executable") |
|---|
| 106 |
endif(BISON_EXECUTABLE) |
|---|
