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root/OpenMD/branches/devel_omp/cmake/modules/MacroEnsureVersion.cmake
Revision: 1495
Committed: Tue Aug 31 20:46:05 2010 UTC (15 years, 1 month ago) by chuckv
Original Path: branches/development/cmake/modules/MacroEnsureVersion.cmake
File size: 5085 byte(s)
Log Message: 
Needed by openbabel macro.

File Contents

# User Rev Content
1 chuckv 1495 # This file defines the following macros for developers to use in ensuring
2     # that installed software is of the right version:
3     #
4     # MACRO_ENSURE_VERSION - test that a version number is greater than
5     # or equal to some minimum
6     # MACRO_ENSURE_VERSION_RANGE - test that a version number is greater than
7     # or equal to some minimum and less than some
8     # maximum
9     # MACRO_ENSURE_VERSION2 - deprecated, do not use in new code
10     #
11    
12     # MACRO_ENSURE_VERSION
13     # This macro compares version numbers of the form "x.y.z" or "x.y"
14     # MACRO_ENSURE_VERSION( FOO_MIN_VERSION FOO_VERSION_FOUND FOO_VERSION_OK)
15     # will set FOO_VERSION_OK to true if FOO_VERSION_FOUND >= FOO_MIN_VERSION
16     # Leading and trailing text is ok, e.g.
17     # MACRO_ENSURE_VERSION( "2.5.31" "flex 2.5.4a" VERSION_OK)
18     # which means 2.5.31 is required and "flex 2.5.4a" is what was found on the system
19    
20     # Copyright (c) 2006, David Faure, <faure@kde.org>
21     # Copyright (c) 2007, Will Stephenson <wstephenson@kde.org>
22     #
23     # Redistribution and use is allowed according to the terms of the BSD license.
24     # For details see the accompanying COPYING-CMAKE-SCRIPTS file.
25    
26     # MACRO_ENSURE_VERSION_RANGE
27     # This macro ensures that a version number of the form
28     # "x.y.z" or "x.y" falls within a range defined by
29     # min_version <= found_version < max_version.
30     # If this expression holds, FOO_VERSION_OK will be set TRUE
31     #
32     # Example: MACRO_ENSURE_VERSION_RANGE3( "0.1.0" ${FOOCODE_VERSION} "0.7.0" FOO_VERSION_OK )
33     #
34     # This macro will break silently if any of x,y,z are greater than 100.
35     #
36     # Copyright (c) 2007, Will Stephenson <wstephenson@kde.org>
37     #
38     # Redistribution and use is allowed according to the terms of the BSD license.
39     # For details see the accompanying COPYING-CMAKE-SCRIPTS file.
40    
41     # NORMALIZE_VERSION
42     # Helper macro to convert version numbers of the form "x.y.z"
43     # to an integer equal to 10^4 * x + 10^2 * y + z
44     #
45     # This macro will break silently if any of x,y,z are greater than 100.
46     #
47     # Copyright (c) 2006, David Faure, <faure@kde.org>
48     # Copyright (c) 2007, Will Stephenson <wstephenson@kde.org>
49     #
50     # Redistribution and use is allowed according to the terms of the BSD license.
51     # For details see the accompanying COPYING-CMAKE-SCRIPTS file.
52    
53     # CHECK_RANGE_INCLUSIVE_LOWER
54     # Helper macro to check whether x <= y < z
55     #
56     # Copyright (c) 2007, Will Stephenson <wstephenson@kde.org>
57     #
58     # Redistribution and use is allowed according to the terms of the BSD license.
59     # For details see the accompanying COPYING-CMAKE-SCRIPTS file.
60    
61    
62     MACRO(NORMALIZE_VERSION _requested_version _normalized_version)
63     STRING(REGEX MATCH "[^0-9]*[0-9]+\\.[0-9]+\\.[0-9]+.*" _threePartMatch "${_requested_version}")
64     if (_threePartMatch)
65     # parse the parts of the version string
66     STRING(REGEX REPLACE "[^0-9]*([0-9]+)\\.[0-9]+\\.[0-9]+.*" "\\1" _major_vers "${_requested_version}")
67     STRING(REGEX REPLACE "[^0-9]*[0-9]+\\.([0-9]+)\\.[0-9]+.*" "\\1" _minor_vers "${_requested_version}")
68     STRING(REGEX REPLACE "[^0-9]*[0-9]+\\.[0-9]+\\.([0-9]+).*" "\\1" _patch_vers "${_requested_version}")
69     else (_threePartMatch)
70     STRING(REGEX REPLACE "([0-9]+)\\.[0-9]+" "\\1" _major_vers "${_requested_version}")
71     STRING(REGEX REPLACE "[0-9]+\\.([0-9]+)" "\\1" _minor_vers "${_requested_version}")
72     set(_patch_vers "0")
73     endif (_threePartMatch)
74    
75     # compute an overall version number which can be compared at once
76     MATH(EXPR ${_normalized_version} "${_major_vers}*10000 + ${_minor_vers}*100 + ${_patch_vers}")
77     ENDMACRO(NORMALIZE_VERSION)
78    
79     MACRO(MACRO_CHECK_RANGE_INCLUSIVE_LOWER _lower_limit _value _upper_limit _ok)
80     if (${_value} LESS ${_lower_limit})
81     set( ${_ok} FALSE )
82     elseif (${_value} EQUAL ${_lower_limit})
83     set( ${_ok} TRUE )
84     elseif (${_value} EQUAL ${_upper_limit})
85     set( ${_ok} FALSE )
86     elseif (${_value} GREATER ${_upper_limit})
87     set( ${_ok} FALSE )
88     else (${_value} LESS ${_lower_limit})
89     set( ${_ok} TRUE )
90     endif (${_value} LESS ${_lower_limit})
91     ENDMACRO(MACRO_CHECK_RANGE_INCLUSIVE_LOWER)
92    
93     MACRO(MACRO_ENSURE_VERSION requested_version found_version var_too_old)
94     NORMALIZE_VERSION( ${requested_version} req_vers_num )
95     NORMALIZE_VERSION( ${found_version} found_vers_num )
96    
97     if (found_vers_num LESS req_vers_num)
98     set( ${var_too_old} FALSE )
99     else (found_vers_num LESS req_vers_num)
100     set( ${var_too_old} TRUE )
101     endif (found_vers_num LESS req_vers_num)
102    
103     ENDMACRO(MACRO_ENSURE_VERSION)
104    
105     MACRO(MACRO_ENSURE_VERSION2 requested_version2 found_version2 var_too_old2)
106     MACRO_ENSURE_VERSION( ${requested_version2} ${found_version2} ${var_too_old2})
107     ENDMACRO(MACRO_ENSURE_VERSION2)
108    
109     MACRO(MACRO_ENSURE_VERSION_RANGE min_version found_version max_version var_ok)
110     NORMALIZE_VERSION( ${min_version} req_vers_num )
111     NORMALIZE_VERSION( ${found_version} found_vers_num )
112     NORMALIZE_VERSION( ${max_version} max_vers_num )
113    
114     MACRO_CHECK_RANGE_INCLUSIVE_LOWER( ${req_vers_num} ${found_vers_num} ${max_vers_num} ${var_ok})
115     ENDMACRO(MACRO_ENSURE_VERSION_RANGE)
116    
117