|
1899
|
1 # ===========================================================================
|
|
|
2 # http://www.gnu.org/software/autoconf-archive/ax_compare_version.html
|
|
|
3 # ===========================================================================
|
|
|
4 #
|
|
|
5 # SYNOPSIS
|
|
|
6 #
|
|
|
7 # AX_COMPARE_VERSION(VERSION_A, OP, VERSION_B, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
|
|
|
8 #
|
|
|
9 # DESCRIPTION
|
|
|
10 #
|
|
|
11 # This macro compares two version strings. Due to the various number of
|
|
|
12 # minor-version numbers that can exist, and the fact that string
|
|
|
13 # comparisons are not compatible with numeric comparisons, this is not
|
|
|
14 # necessarily trivial to do in a autoconf script. This macro makes doing
|
|
|
15 # these comparisons easy.
|
|
|
16 #
|
|
|
17 # The six basic comparisons are available, as well as checking equality
|
|
|
18 # limited to a certain number of minor-version levels.
|
|
|
19 #
|
|
|
20 # The operator OP determines what type of comparison to do, and can be one
|
|
|
21 # of:
|
|
|
22 #
|
|
|
23 # eq - equal (test A == B)
|
|
|
24 # ne - not equal (test A != B)
|
|
|
25 # le - less than or equal (test A <= B)
|
|
|
26 # ge - greater than or equal (test A >= B)
|
|
|
27 # lt - less than (test A < B)
|
|
|
28 # gt - greater than (test A > B)
|
|
|
29 #
|
|
|
30 # Additionally, the eq and ne operator can have a number after it to limit
|
|
|
31 # the test to that number of minor versions.
|
|
|
32 #
|
|
|
33 # eq0 - equal up to the length of the shorter version
|
|
|
34 # ne0 - not equal up to the length of the shorter version
|
|
|
35 # eqN - equal up to N sub-version levels
|
|
|
36 # neN - not equal up to N sub-version levels
|
|
|
37 #
|
|
|
38 # When the condition is true, shell commands ACTION-IF-TRUE are run,
|
|
|
39 # otherwise shell commands ACTION-IF-FALSE are run. The environment
|
|
|
40 # variable 'ax_compare_version' is always set to either 'true' or 'false'
|
|
|
41 # as well.
|
|
|
42 #
|
|
|
43 # Examples:
|
|
|
44 #
|
|
|
45 # AX_COMPARE_VERSION([3.15.7],[lt],[3.15.8])
|
|
|
46 # AX_COMPARE_VERSION([3.15],[lt],[3.15.8])
|
|
|
47 #
|
|
|
48 # would both be true.
|
|
|
49 #
|
|
|
50 # AX_COMPARE_VERSION([3.15.7],[eq],[3.15.8])
|
|
|
51 # AX_COMPARE_VERSION([3.15],[gt],[3.15.8])
|
|
|
52 #
|
|
|
53 # would both be false.
|
|
|
54 #
|
|
|
55 # AX_COMPARE_VERSION([3.15.7],[eq2],[3.15.8])
|
|
|
56 #
|
|
|
57 # would be true because it is only comparing two minor versions.
|
|
|
58 #
|
|
|
59 # AX_COMPARE_VERSION([3.15.7],[eq0],[3.15])
|
|
|
60 #
|
|
|
61 # would be true because it is only comparing the lesser number of minor
|
|
|
62 # versions of the two values.
|
|
|
63 #
|
|
|
64 # Note: The characters that separate the version numbers do not matter. An
|
|
|
65 # empty string is the same as version 0. OP is evaluated by autoconf, not
|
|
|
66 # configure, so must be a string, not a variable.
|
|
|
67 #
|
|
|
68 # The author would like to acknowledge Guido Draheim whose advice about
|
|
|
69 # the m4_case and m4_ifvaln functions make this macro only include the
|
|
|
70 # portions necessary to perform the specific comparison specified by the
|
|
|
71 # OP argument in the final configure script.
|
|
|
72 #
|
|
|
73 # LICENSE
|
|
|
74 #
|
|
|
75 # Copyright (c) 2008 Tim Toolan <toolan@ele.uri.edu>
|
|
|
76 #
|
|
|
77 # Copying and distribution of this file, with or without modification, are
|
|
|
78 # permitted in any medium without royalty provided the copyright notice
|
|
|
79 # and this notice are preserved. This file is offered as-is, without any
|
|
|
80 # warranty.
|
|
|
81
|
|
|
82 #serial 11
|
|
|
83
|
|
|
84 dnl #########################################################################
|
|
|
85 AC_DEFUN([AX_COMPARE_VERSION], [
|
|
|
86 AC_REQUIRE([AC_PROG_AWK])
|
|
|
87
|
|
|
88 # Used to indicate true or false condition
|
|
|
89 ax_compare_version=false
|
|
|
90
|
|
|
91 # Convert the two version strings to be compared into a format that
|
|
|
92 # allows a simple string comparison. The end result is that a version
|
|
|
93 # string of the form 1.12.5-r617 will be converted to the form
|
|
|
94 # 0001001200050617. In other words, each number is zero padded to four
|
|
|
95 # digits, and non digits are removed.
|
|
|
96 AS_VAR_PUSHDEF([A],[ax_compare_version_A])
|
|
|
97 A=`echo "$1" | sed -e 's/\([[0-9]]*\)/Z\1Z/g' \
|
|
|
98 -e 's/Z\([[0-9]]\)Z/Z0\1Z/g' \
|
|
|
99 -e 's/Z\([[0-9]][[0-9]]\)Z/Z0\1Z/g' \
|
|
|
100 -e 's/Z\([[0-9]][[0-9]][[0-9]]\)Z/Z0\1Z/g' \
|
|
|
101 -e 's/[[^0-9]]//g'`
|
|
|
102
|
|
|
103 AS_VAR_PUSHDEF([B],[ax_compare_version_B])
|
|
|
104 B=`echo "$3" | sed -e 's/\([[0-9]]*\)/Z\1Z/g' \
|
|
|
105 -e 's/Z\([[0-9]]\)Z/Z0\1Z/g' \
|
|
|
106 -e 's/Z\([[0-9]][[0-9]]\)Z/Z0\1Z/g' \
|
|
|
107 -e 's/Z\([[0-9]][[0-9]][[0-9]]\)Z/Z0\1Z/g' \
|
|
|
108 -e 's/[[^0-9]]//g'`
|
|
|
109
|
|
|
110 dnl # In the case of le, ge, lt, and gt, the strings are sorted as necessary
|
|
|
111 dnl # then the first line is used to determine if the condition is true.
|
|
|
112 dnl # The sed right after the echo is to remove any indented white space.
|
|
|
113 m4_case(m4_tolower($2),
|
|
|
114 [lt],[
|
|
|
115 ax_compare_version=`echo "x$A
|
|
|
116 x$B" | sed 's/^ *//' | sort -r | sed "s/x${A}/false/;s/x${B}/true/;1q"`
|
|
|
117 ],
|
|
|
118 [gt],[
|
|
|
119 ax_compare_version=`echo "x$A
|
|
|
120 x$B" | sed 's/^ *//' | sort | sed "s/x${A}/false/;s/x${B}/true/;1q"`
|
|
|
121 ],
|
|
|
122 [le],[
|
|
|
123 ax_compare_version=`echo "x$A
|
|
|
124 x$B" | sed 's/^ *//' | sort | sed "s/x${A}/true/;s/x${B}/false/;1q"`
|
|
|
125 ],
|
|
|
126 [ge],[
|
|
|
127 ax_compare_version=`echo "x$A
|
|
|
128 x$B" | sed 's/^ *//' | sort -r | sed "s/x${A}/true/;s/x${B}/false/;1q"`
|
|
|
129 ],[
|
|
|
130 dnl Split the operator from the subversion count if present.
|
|
|
131 m4_bmatch(m4_substr($2,2),
|
|
|
132 [0],[
|
|
|
133 # A count of zero means use the length of the shorter version.
|
|
|
134 # Determine the number of characters in A and B.
|
|
|
135 ax_compare_version_len_A=`echo "$A" | $AWK '{print(length)}'`
|
|
|
136 ax_compare_version_len_B=`echo "$B" | $AWK '{print(length)}'`
|
|
|
137
|
|
|
138 # Set A to no more than B's length and B to no more than A's length.
|
|
|
139 A=`echo "$A" | sed "s/\(.\{$ax_compare_version_len_B\}\).*/\1/"`
|
|
|
140 B=`echo "$B" | sed "s/\(.\{$ax_compare_version_len_A\}\).*/\1/"`
|
|
|
141 ],
|
|
|
142 [[0-9]+],[
|
|
|
143 # A count greater than zero means use only that many subversions
|
|
|
144 A=`echo "$A" | sed "s/\(\([[0-9]]\{4\}\)\{m4_substr($2,2)\}\).*/\1/"`
|
|
|
145 B=`echo "$B" | sed "s/\(\([[0-9]]\{4\}\)\{m4_substr($2,2)\}\).*/\1/"`
|
|
|
146 ],
|
|
|
147 [.+],[
|
|
|
148 AC_WARNING(
|
|
|
149 [illegal OP numeric parameter: $2])
|
|
|
150 ],[])
|
|
|
151
|
|
|
152 # Pad zeros at end of numbers to make same length.
|
|
|
153 ax_compare_version_tmp_A="$A`echo $B | sed 's/./0/g'`"
|
|
|
154 B="$B`echo $A | sed 's/./0/g'`"
|
|
|
155 A="$ax_compare_version_tmp_A"
|
|
|
156
|
|
|
157 # Check for equality or inequality as necessary.
|
|
|
158 m4_case(m4_tolower(m4_substr($2,0,2)),
|
|
|
159 [eq],[
|
|
|
160 test "x$A" = "x$B" && ax_compare_version=true
|
|
|
161 ],
|
|
|
162 [ne],[
|
|
|
163 test "x$A" != "x$B" && ax_compare_version=true
|
|
|
164 ],[
|
|
|
165 AC_WARNING([illegal OP parameter: $2])
|
|
|
166 ])
|
|
|
167 ])
|
|
|
168
|
|
|
169 AS_VAR_POPDEF([A])dnl
|
|
|
170 AS_VAR_POPDEF([B])dnl
|
|
|
171
|
|
|
172 dnl # Execute ACTION-IF-TRUE / ACTION-IF-FALSE.
|
|
|
173 if test "$ax_compare_version" = "true" ; then
|
|
|
174 m4_ifvaln([$4],[$4],[:])dnl
|
|
|
175 m4_ifvaln([$5],[else $5])dnl
|
|
|
176 fi
|
|
|
177 ]) dnl AX_COMPARE_VERSION
|
