1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
|
#=============================================================================
# Copyright 2009 Kitware, Inc.
# Copyright 2006 Tristan Carel
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
#
# * Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# * Neither the names of Kitware, Inc., the Insight Software Consortium,
# nor the names of their contributors may be used to endorse or promote
# products derived from this software without specific prior written
# permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
# ------------------------------------------------------------------------------
#
# The above copyright and license notice applies to distributions of
# CMake in source and binary form. Some source files contain additional
# notices of original copyright by their contributors; see each source
# for details. Third-party software packages supplied with CMake under
# compatible licenses provide their own copyright notices documented in
# corresponding subdirectories.
#=============================================================================
FIND_PROGRAM(FLEX_EXECUTABLE flex DOC "path to the flex executable")
MARK_AS_ADVANCED(FLEX_EXECUTABLE)
FIND_LIBRARY(FL_LIBRARY NAMES fl
DOC "Path to the fl library")
FIND_PATH(FLEX_INCLUDE_DIR FlexLexer.h
DOC "Path to the flex headers")
MARK_AS_ADVANCED(FL_LIBRARY FLEX_INCLUDE_DIR)
SET(FLEX_INCLUDE_DIRS ${FLEX_INCLUDE_DIR})
SET(FLEX_LIBRARIES ${FL_LIBRARY})
IF(FLEX_EXECUTABLE)
EXECUTE_PROCESS(COMMAND ${FLEX_EXECUTABLE} --version
OUTPUT_VARIABLE FLEX_version_output
ERROR_VARIABLE FLEX_version_error
RESULT_VARIABLE FLEX_version_result
OUTPUT_STRIP_TRAILING_WHITESPACE)
IF(NOT ${FLEX_version_result} EQUAL 0)
IF(FLEX_FIND_REQUIRED)
MESSAGE(SEND_ERROR "Command \"${FLEX_EXECUTABLE} --version\" failed with output:\n${FLEX_version_output}\n${FLEX_version_error}")
ELSE()
MESSAGE("Command \"${FLEX_EXECUTABLE} --version\" failed with output:\n${FLEX_version_output}\n${FLEX_version_error}\nFLEX_VERSION will not be available")
ENDIF()
ELSE()
STRING(REGEX REPLACE "^flex (.*)$" "\\1"
FLEX_VERSION "${FLEX_version_output}")
ENDIF()
#============================================================
# FLEX_TARGET (public macro)
#============================================================
#
MACRO(FLEX_TARGET Name Input Output)
SET(FLEX_TARGET_usage "FLEX_TARGET(<Name> <Input> <Output> [COMPILE_FLAGS <string>]")
IF(${ARGC} GREATER 3)
IF(${ARGC} EQUAL 5)
IF("${ARGV3}" STREQUAL "COMPILE_FLAGS")
SET(FLEX_EXECUTABLE_opts "${ARGV4}")
SEPARATE_ARGUMENTS(FLEX_EXECUTABLE_opts)
ELSE()
MESSAGE(SEND_ERROR ${FLEX_TARGET_usage})
ENDIF()
ELSE()
MESSAGE(SEND_ERROR ${FLEX_TARGET_usage})
ENDIF()
ENDIF()
STRING(REGEX REPLACE "^(.*)(\\.[^.]*)$" "\\2" _fileext "${Output}")
STRING(REPLACE "c" "h" _fileext ${_fileext})
STRING(REGEX REPLACE "^(.*)(\\.[^.]*)$" "\\1${_fileext}"
OutputHeader "${Output}")
ADD_CUSTOM_COMMAND(OUTPUT ${Output} ${OutputHeader}
COMMAND ${FLEX_EXECUTABLE}
ARGS ${FLEX_EXECUTABLE_opts} -o${Output} --header-file=${OutputHeader} ${Input}
DEPENDS ${Input}
COMMENT "[FLEX][${Name}] Building scanner with flex ${FLEX_VERSION}"
WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR})
SET(FLEX_${Name}_DEFINED TRUE)
SET(FLEX_${Name}_OUTPUTS ${Output} ${OutputHeader})
SET(FLEX_${Name}_OUTPUT_HEADER ${OutputHeader})
SET(FLEX_${Name}_INPUT ${Input})
SET(FLEX_${Name}_COMPILE_FLAGS ${FLEX_EXECUTABLE_opts})
ENDMACRO(FLEX_TARGET)
#============================================================
ENDIF(FLEX_EXECUTABLE)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(FLEX REQUIRED_VARS FLEX_EXECUTABLE
VERSION_VAR FLEX_VERSION)
# FindFLEX.cmake ends here
|
