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7c673cae FG |
1 | # Copyright (c) 2010 Vladimir Prus. |
2 | # Copyright (c) 2013 Steven Watanabe | |
3 | # | |
4 | # Use, modification and distribution is subject to the Boost Software | |
1e59de90 TL |
5 | # License Version 1.0. (See accompanying file LICENSE.txt or |
6 | # https://www.bfgroup.xyz/b2/LICENSE.txt) | |
7c673cae FG |
7 | |
8 | # Supports the zlib library | |
9 | # | |
10 | # After 'using zlib', the following targets are available: | |
11 | # | |
12 | # /zlib//zlib -- The zlib library | |
13 | ||
14 | import project ; | |
15 | import ac ; | |
16 | import errors ; | |
11fdf7f2 | 17 | import feature ; |
7c673cae | 18 | import "class" : new ; |
1e59de90 | 19 | import targets ; |
7c673cae FG |
20 | import path ; |
21 | import modules ; | |
7c673cae | 22 | import indirect ; |
11fdf7f2 | 23 | import os ; |
7c673cae FG |
24 | import property ; |
25 | import property-set ; | |
26 | ||
27 | header = zlib.h ; | |
28 | names = z zlib zll zdll ; | |
29 | ||
30 | sources = adler32.c compress.c | |
31 | crc32.c deflate.c gzclose.c gzio.c gzlib.c gzread.c gzwrite.c | |
32 | infback.c inffast.c inflate.c inftrees.c trees.c uncompr.c zutil.c ; | |
33 | ||
34 | library-id = 0 ; | |
35 | ||
36 | if --debug-configuration in [ modules.peek : ARGV ] | |
37 | { | |
38 | .debug = true ; | |
39 | } | |
40 | ||
41 | # Initializes the zlib library. | |
42 | # | |
43 | # zlib can be configured either to use pre-existing binaries | |
44 | # or to build the library from source. | |
45 | # | |
46 | # Options for configuring a prebuilt zlib:: | |
47 | # | |
48 | # <search> | |
49 | # The directory containing the zlib binaries. | |
50 | # <name> | |
51 | # Overrides the default library name. | |
52 | # <include> | |
53 | # The directory containing the zlib headers. | |
54 | # | |
55 | # If none of these options is specified, then the environmental | |
56 | # variables ZLIB_LIBRARY_PATH, ZLIB_NAME, and ZLIB_INCLUDE will | |
57 | # be used instead. | |
58 | # | |
59 | # Options for building zlib from source:: | |
60 | # | |
61 | # <source> | |
62 | # The zlib source directory. Defaults to the environmental variable | |
63 | # ZLIB_SOURCE. | |
64 | # <tag> | |
65 | # A rule which computes the actual name of the compiled | |
66 | # libraries based on the build properties. Ignored | |
67 | # when using precompiled binaries. | |
68 | # <build-name> | |
69 | # The base name to use for the compiled library. Ignored | |
70 | # when using precompiled binaries. | |
71 | # | |
72 | # Examples:: | |
73 | # | |
74 | # # Find zlib in the default system location | |
75 | # using zlib ; | |
76 | # # Build zlib from source | |
77 | # using zlib : 1.2.7 : <source>/home/steven/zlib-1.2.7 ; | |
78 | # # Find zlib in /usr/local | |
79 | # using zlib : 1.2.7 | |
80 | # : <include>/usr/local/include <search>/usr/local/lib ; | |
81 | # # Build zlib from source for msvc and find | |
82 | # # prebuilt binaries for gcc. | |
83 | # using zlib : 1.2.7 : <source>C:/Devel/src/zlib-1.2.7 : <toolset>msvc ; | |
84 | # using zlib : 1.2.7 : : <toolset>gcc ; | |
85 | # | |
86 | rule init ( | |
87 | version ? | |
88 | # The zlib version (currently ignored) | |
89 | ||
90 | : options * | |
91 | # A list of the options to use | |
92 | ||
93 | : requirements * | |
94 | # The requirements for the zlib target | |
95 | ||
96 | : is-default ? | |
97 | # Default configurations are only used when zlib | |
b32b8144 FG |
98 | # has not yet been configured. This option is |
99 | # deprecated. A configuration will be treated | |
100 | # as a default when none of <include>, <search>, | |
101 | # <name>, and <source> are present. | |
7c673cae FG |
102 | ) |
103 | { | |
104 | local caller = [ project.current ] ; | |
105 | ||
106 | if ! $(.initialized) | |
107 | { | |
108 | .initialized = true ; | |
109 | ||
110 | project.initialize $(__name__) ; | |
111 | .project = [ project.current ] ; | |
112 | project zlib ; | |
113 | } | |
114 | ||
11fdf7f2 TL |
115 | local library-path = [ feature.get-values <search> : $(options) ] ; |
116 | local include-path = [ feature.get-values <include> : $(options) ] ; | |
117 | local source-path = [ feature.get-values <source> : $(options) ] ; | |
118 | local library-name = [ feature.get-values <name> : $(options) ] ; | |
119 | local tag = [ feature.get-values <tag> : $(options) ] ; | |
120 | local build-name = [ feature.get-values <build-name> : $(options) ] ; | |
7c673cae | 121 | |
b32b8144 FG |
122 | if ! $(library-path) && ! $(include-path) && ! $(source-path) && ! $(library-name) |
123 | { | |
124 | is-default = true ; | |
125 | } | |
126 | ||
7c673cae FG |
127 | condition = [ property-set.create $(requirements) ] ; |
128 | condition = [ property-set.create [ $(condition).base ] ] ; | |
129 | ||
7c673cae FG |
130 | # Ignore environmental ZLIB_SOURCE if this initialization |
131 | # requested to search for a specific pre-built library. | |
132 | if $(library-path) || $(include-path) || $(library-name) | |
133 | { | |
134 | if $(source-path) || $(tag) || $(build-name) | |
135 | { | |
136 | errors.user-error "incompatible options for zlib:" | |
137 | [ property.select <search> <include> <name> : $(options) ] "and" | |
138 | [ property.select <source> <tag> <build-name> : $(options) ] ; | |
139 | } | |
140 | } | |
141 | else | |
142 | { | |
11fdf7f2 TL |
143 | source-path ?= [ os.environ ZLIB_SOURCE ] ; |
144 | if $(source-path) | |
145 | { | |
146 | source-path = [ path.root [ path.make $(source-path) ] | |
147 | [ path.pwd ] ] ; | |
148 | } | |
7c673cae FG |
149 | } |
150 | ||
151 | if $(.configured.$(condition)) | |
152 | { | |
153 | if $(is-default) | |
154 | { | |
155 | if $(.debug) | |
156 | { | |
157 | ECHO "notice: [zlib] zlib is already configured" ; | |
158 | } | |
159 | } | |
160 | else | |
161 | { | |
162 | errors.user-error "zlib is already configured" ; | |
163 | } | |
164 | return ; | |
165 | } | |
166 | else if $(source-path) | |
167 | { | |
168 | build-name ?= z ; | |
169 | library-id = [ CALC $(library-id) + 1 ] ; | |
170 | tag = [ MATCH ^@?(.*)$ : $(tag) ] ; | |
11fdf7f2 | 171 | if $(tag) |
7c673cae FG |
172 | { |
173 | tag = [ indirect.make $(tag) : [ $(caller).project-module ] ] ; | |
174 | } | |
175 | sources = [ path.glob $(source-path) : $(sources) ] ; | |
176 | if $(.debug) | |
177 | { | |
178 | ECHO "notice: [zlib] Building zlib from source as $(build-name)" ; | |
179 | if $(condition) | |
180 | { | |
181 | ECHO "notice: [zlib] Condition" [ $(condition).raw ] ; | |
182 | } | |
183 | if $(sources) | |
184 | { | |
185 | ECHO "notice: [zlib] found zlib source in $(source-path)" ; | |
186 | } | |
187 | else | |
188 | { | |
189 | ECHO "warning: [zlib] could not find zlib source in $(source-path)" ; | |
190 | } | |
191 | } | |
192 | local target ; | |
193 | if $(sources) | |
194 | { | |
195 | target = [ targets.create-typed-target LIB : $(.project) | |
196 | : $(build-name).$(library-id) | |
197 | : $(sources) | |
198 | : $(requirements) | |
199 | <tag>@$(tag) | |
200 | <include>$(source-path) | |
201 | <toolset>msvc:<define>_CRT_SECURE_NO_DEPRECATE | |
202 | <toolset>msvc:<define>_SCL_SECURE_NO_DEPRECATE | |
203 | <link>shared:<define>ZLIB_DLL | |
204 | : | |
205 | : <include>$(source-path) ] ; | |
206 | } | |
207 | ||
208 | local mt = [ new ac-library zlib : $(.project) : $(condition) ] ; | |
209 | $(mt).set-header $(header) ; | |
210 | $(mt).set-default-names $(names) ; | |
211 | if $(target) | |
212 | { | |
213 | $(mt).set-target $(target) ; | |
214 | } | |
215 | targets.main-target-alternative $(mt) ; | |
216 | } | |
217 | else | |
218 | { | |
219 | if $(.debug) | |
220 | { | |
221 | ECHO "notice: [zlib] Using pre-installed library" ; | |
222 | if $(condition) | |
223 | { | |
224 | ECHO "notice: [zlib] Condition" [ $(condition).raw ] ; | |
225 | } | |
226 | } | |
227 | ||
228 | local mt = [ new ac-library zlib : $(.project) : $(condition) : | |
229 | $(include-path) : $(library-path) : $(library-name) ] ; | |
230 | $(mt).set-header $(header) ; | |
231 | $(mt).set-default-names $(names) ; | |
232 | targets.main-target-alternative $(mt) ; | |
233 | } | |
234 | .configured.$(condition) = true ; | |
235 | } |