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authorDavid Walter Seikel2013-01-13 18:54:10 +1000
committerDavid Walter Seikel2013-01-13 18:54:10 +1000
commit959831f4ef5a3e797f576c3de08cd65032c997ad (patch)
treee7351908be5995f0b325b2ebeaa02d5a34b82583 /libraries/irrlicht-1.8/source/Irrlicht/libpng/scripts/options.awk
parentAdd info about changes to Irrlicht. (diff)
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Remove damned ancient DOS line endings from Irrlicht. Hopefully I did not go overboard.
Diffstat (limited to 'libraries/irrlicht-1.8/source/Irrlicht/libpng/scripts/options.awk')
-rw-r--r--libraries/irrlicht-1.8/source/Irrlicht/libpng/scripts/options.awk1554
1 files changed, 777 insertions, 777 deletions
diff --git a/libraries/irrlicht-1.8/source/Irrlicht/libpng/scripts/options.awk b/libraries/irrlicht-1.8/source/Irrlicht/libpng/scripts/options.awk
index 29ea31d..a8dff04 100644
--- a/libraries/irrlicht-1.8/source/Irrlicht/libpng/scripts/options.awk
+++ b/libraries/irrlicht-1.8/source/Irrlicht/libpng/scripts/options.awk
@@ -1,777 +1,777 @@
1#!/bin/awk -f 1#!/bin/awk -f
2# scripts/options.awk - library build configuration control 2# scripts/options.awk - library build configuration control
3# 3#
4# last changed in libpng version 1.5.7 - December 15, 2011 4# last changed in libpng version 1.5.7 - December 15, 2011
5# 5#
6# Copyright (c) 1998-2011 Glenn Randers-Pehrson 6# Copyright (c) 1998-2011 Glenn Randers-Pehrson
7# 7#
8# This code is released under the libpng license. 8# This code is released under the libpng license.
9# For conditions of distribution and use, see the disclaimer 9# For conditions of distribution and use, see the disclaimer
10# and license in png.h 10# and license in png.h
11 11
12# The output of this script is written to the file given by 12# The output of this script is written to the file given by
13# the variable 'out'. The script is run twice, once with 13# the variable 'out'. The script is run twice, once with
14# an intermediate output file, 'options.tmp' then again on 14# an intermediate output file, 'options.tmp' then again on
15# that file to produce the final output: 15# that file to produce the final output:
16# 16#
17# awk -f scripts/options.awk out=options.tmp scripts/options.dfa 1>&2 17# awk -f scripts/options.awk out=options.tmp scripts/options.dfa 1>&2
18# awk -f scripts/options.awk out=options.dfn options.tmp 1>&2 18# awk -f scripts/options.awk out=options.dfn options.tmp 1>&2
19# 19#
20# Some options may be specified on the command line: 20# Some options may be specified on the command line:
21# 21#
22# deb=1 Causes debugging to be output 22# deb=1 Causes debugging to be output
23# logunsupported=1 Causes all options to be recorded in the output 23# logunsupported=1 Causes all options to be recorded in the output
24# everything=off Causes all options to be disabled by default 24# everything=off Causes all options to be disabled by default
25# everything=on Causes all options to be enabled by default 25# everything=on Causes all options to be enabled by default
26# 26#
27# If awk fails on your platform, try nawk instead. 27# If awk fails on your platform, try nawk instead.
28# 28#
29# These options may also be specified in the original input file (and 29# These options may also be specified in the original input file (and
30# are copied to the preprocessed file). 30# are copied to the preprocessed file).
31 31
32BEGIN{ 32BEGIN{
33 out="/dev/null" # intermediate, preprocessed, file 33 out="/dev/null" # intermediate, preprocessed, file
34 pre=-1 # preprocess (first line) 34 pre=-1 # preprocess (first line)
35 version="libpng version unknown" # version information 35 version="libpng version unknown" # version information
36 version_file="" # where to find the version 36 version_file="" # where to find the version
37 err=0 # in-line exit sets this 37 err=0 # in-line exit sets this
38 start="PNG_DEFN_MAGIC-" # Arbitrary start 38 start="PNG_DEFN_MAGIC-" # Arbitrary start
39 end="-PNG_DEFN_END" # Arbitrary end 39 end="-PNG_DEFN_END" # Arbitrary end
40 ct="PNG_JOIN" # Join two tokens 40 ct="PNG_JOIN" # Join two tokens
41 cx= "/" ct "*" # Open C comment for output file 41 cx= "/" ct "*" # Open C comment for output file
42 comment=start cx # Comment start 42 comment=start cx # Comment start
43 cend="*/" end # Comment end 43 cend="*/" end # Comment end
44 def=start "#define PNG_" ct # Arbitrary define 44 def=start "#define PNG_" ct # Arbitrary define
45 sup=ct "_SUPPORTED" end # end supported option 45 sup=ct "_SUPPORTED" end # end supported option
46 und=comment "#undef PNG_" ct # Unsupported option 46 und=comment "#undef PNG_" ct # Unsupported option
47 une=ct "_SUPPORTED" cend # end unsupported option 47 une=ct "_SUPPORTED" cend # end unsupported option
48 error=start "ERROR:" # error message 48 error=start "ERROR:" # error message
49 49
50 # Variables 50 # Variables
51 deb=0 # debug - set on command line 51 deb=0 # debug - set on command line
52 everything="" # do not override defaults 52 everything="" # do not override defaults
53 logunsupported=0 # write unsupported options too 53 logunsupported=0 # write unsupported options too
54 54
55 # Precreate arrays 55 # Precreate arrays
56 option[""] = "" # list of all options: default enabled/disabled 56 option[""] = "" # list of all options: default enabled/disabled
57 done[""] = 1 # marks option as having been output 57 done[""] = 1 # marks option as having been output
58 requires[""] = "" # requires by option 58 requires[""] = "" # requires by option
59 iffs[""] = "" # if by option 59 iffs[""] = "" # if by option
60 enabledby[""] = "" # options that enable it by option 60 enabledby[""] = "" # options that enable it by option
61 setting[""] = "" # requires by setting 61 setting[""] = "" # requires by setting
62 defaults[""] = "" # used for a defaulted value 62 defaults[""] = "" # used for a defaulted value
63 doneset[""] = 1 # marks setting as having been output 63 doneset[""] = 1 # marks setting as having been output
64 r[""] = "" # Temporary array 64 r[""] = "" # Temporary array
65 65
66 # For decorating the output file 66 # For decorating the output file
67 protect = "" 67 protect = ""
68} 68}
69 69
70# The output file must be specified before any input: 70# The output file must be specified before any input:
71out == "/dev/null" { 71out == "/dev/null" {
72 print "out=output.file must be given on the command line" 72 print "out=output.file must be given on the command line"
73 err = 1 73 err = 1
74 exit 1 74 exit 1
75} 75}
76 76
77# The very first line indicates whether we are reading pre-processed 77# The very first line indicates whether we are reading pre-processed
78# input or not, this must come *first* because 'PREPROCESSED' needs 78# input or not, this must come *first* because 'PREPROCESSED' needs
79# to be the very first line in the temporary file. 79# to be the very first line in the temporary file.
80pre == -1{ 80pre == -1{
81 if ($0 == "PREPROCESSED") { 81 if ($0 == "PREPROCESSED") {
82 pre = 0 82 pre = 0
83 next 83 next
84 } else { 84 } else {
85 pre = 1 85 pre = 1
86 print "PREPROCESSED" >out 86 print "PREPROCESSED" >out
87 # And fall through to continue processing 87 # And fall through to continue processing
88 } 88 }
89} 89}
90 90
91# While pre-processing if version is set to "search" look for a version string 91# While pre-processing if version is set to "search" look for a version string
92# in the following file. 92# in the following file.
93pre && version == "search" && version_file == ""{ 93pre && version == "search" && version_file == ""{
94 version_file = FILENAME 94 version_file = FILENAME
95} 95}
96 96
97pre && version == "search" && version_file != FILENAME{ 97pre && version == "search" && version_file != FILENAME{
98 print "version string not found in", version_file 98 print "version string not found in", version_file
99 err = 1 99 err = 1
100 exit 1 100 exit 1
101} 101}
102 102
103pre && version == "search" && $0 ~ /^ \* libpng version/{ 103pre && version == "search" && $0 ~ /^ \* libpng version/{
104 version = substr($0, 4) 104 version = substr($0, 4)
105 print "version =", version >out 105 print "version =", version >out
106 next 106 next
107} 107}
108 108
109pre && FILENAME == version_file{ 109pre && FILENAME == version_file{
110 next 110 next
111} 111}
112 112
113# variable=value 113# variable=value
114# Sets the given variable to the given value (the syntax is fairly 114# Sets the given variable to the given value (the syntax is fairly
115# free form, except for deb (you are expected to understand how to 115# free form, except for deb (you are expected to understand how to
116# set the debug variable...) 116# set the debug variable...)
117# 117#
118# This happens before the check on 'pre' below skips most of the 118# This happens before the check on 'pre' below skips most of the
119# rest of the actions, so the variable settings happen during 119# rest of the actions, so the variable settings happen during
120# preprocessing but are recorded in the END action too. This 120# preprocessing but are recorded in the END action too. This
121# allows them to be set on the command line too. 121# allows them to be set on the command line too.
122$0 ~ /^[ ]*version[ ]*=/{ 122$0 ~ /^[ ]*version[ ]*=/{
123 sub(/^[ ]*version[ ]*=[ ]*/, "") 123 sub(/^[ ]*version[ ]*=[ ]*/, "")
124 version = $0 124 version = $0
125 next 125 next
126} 126}
127$0 ~ /^[ ]*everything[ =]*off[ ]*$/{ 127$0 ~ /^[ ]*everything[ =]*off[ ]*$/{
128 everything = "off" 128 everything = "off"
129 next 129 next
130} 130}
131$0 ~ /^[ ]*everything[ =]*on[ ]*$/{ 131$0 ~ /^[ ]*everything[ =]*on[ ]*$/{
132 everything = "on" 132 everything = "on"
133 next 133 next
134} 134}
135$0 ~ /^[ ]*logunsupported[ =]*0[ ]*$/{ 135$0 ~ /^[ ]*logunsupported[ =]*0[ ]*$/{
136 logunsupported = 0 136 logunsupported = 0
137 next 137 next
138} 138}
139$0 ~ /^[ ]*logunsupported[ =]*1[ ]*$/{ 139$0 ~ /^[ ]*logunsupported[ =]*1[ ]*$/{
140 logunsupported = 1 140 logunsupported = 1
141 next 141 next
142} 142}
143$1 == "deb" && $2 == "=" && NF == 3{ 143$1 == "deb" && $2 == "=" && NF == 3{
144 deb = $3 144 deb = $3
145 next 145 next
146} 146}
147 147
148# Preprocessing - this just copies the input file with lines 148# Preprocessing - this just copies the input file with lines
149# that need preprocessing (just chunk at present) expanded 149# that need preprocessing (just chunk at present) expanded
150# The bare "pre" instead of "pre != 0" crashes under Sunos awk 150# The bare "pre" instead of "pre != 0" crashes under Sunos awk
151pre && $1 != "chunk"{ 151pre && $1 != "chunk"{
152 print >out 152 print >out
153 next 153 next
154} 154}
155 155
156# The first characters of the line determine how it is processed, 156# The first characters of the line determine how it is processed,
157# leading spaces are ignored. In general tokens that are not 157# leading spaces are ignored. In general tokens that are not
158# keywords are the names of options. An option 'name' is 158# keywords are the names of options. An option 'name' is
159# controlled by the definition of the corresponding macros: 159# controlled by the definition of the corresponding macros:
160# 160#
161# PNG_name_SUPPORTED The option is turned on 161# PNG_name_SUPPORTED The option is turned on
162# PNG_NO_name 162# PNG_NO_name
163# PNG_NO_name_SUPPORTED If the first macro is not defined 163# PNG_NO_name_SUPPORTED If the first macro is not defined
164# either of these will turn the option off 164# either of these will turn the option off
165# 165#
166# If none of these macros are defined the option is turned on, unless 166# If none of these macros are defined the option is turned on, unless
167# the keyword 'off' is given in a line relating to the option. The 167# the keyword 'off' is given in a line relating to the option. The
168# keyword 'on' can also be given, but it will be ignored (since it is 168# keyword 'on' can also be given, but it will be ignored (since it is
169# the default.) 169# the default.)
170# 170#
171# In the syntax below a 'name' is indicated by "NAME", other macro 171# In the syntax below a 'name' is indicated by "NAME", other macro
172# values are indicated by "MACRO", as with "NAME" the leading "PNG_" 172# values are indicated by "MACRO", as with "NAME" the leading "PNG_"
173# is omitted, but in this case the "NO_" prefix and the "_SUPPORTED" 173# is omitted, but in this case the "NO_" prefix and the "_SUPPORTED"
174# suffix are never used. 174# suffix are never used.
175# 175#
176# Each line is introduced by a keyword - the first non-space characters 176# Each line is introduced by a keyword - the first non-space characters
177# on the line. A line starting with a '#' is a comment - it is totally 177# on the line. A line starting with a '#' is a comment - it is totally
178# ignored. Keywords are as follows, a NAME, is simply a macro name 178# ignored. Keywords are as follows, a NAME, is simply a macro name
179# without the leading PNG_, PNG_NO_ or the trailing _SUPPORTED. 179# without the leading PNG_, PNG_NO_ or the trailing _SUPPORTED.
180 180
181$1 ~ /^#/ || $0 ~ /^[ ]*$/{ 181$1 ~ /^#/ || $0 ~ /^[ ]*$/{
182 next 182 next
183} 183}
184 184
185# com <comment> 185# com <comment>
186# The whole line is placed in the output file as a comment with 186# The whole line is placed in the output file as a comment with
187# the preceding 'com' removed 187# the preceding 'com' removed
188$1 == "com"{ 188$1 == "com"{
189 if (NF > 1) { 189 if (NF > 1) {
190 # sub(/^[ ]*com[ ]*/, "") 190 # sub(/^[ ]*com[ ]*/, "")
191 $1 = "" 191 $1 = ""
192 print comment, $0, cend >out 192 print comment, $0, cend >out
193 } else 193 } else
194 print start end >out 194 print start end >out
195 next 195 next
196} 196}
197 197
198# version 198# version
199# Inserts a version comment 199# Inserts a version comment
200$1 == "version" && NF == 1{ 200$1 == "version" && NF == 1{
201 if (version == "") { 201 if (version == "") {
202 print "ERROR: no version string set" 202 print "ERROR: no version string set"
203 err = 1 # prevent END{} running 203 err = 1 # prevent END{} running
204 exit 1 204 exit 1
205 } 205 }
206 206
207 print comment, version, cend >out 207 print comment, version, cend >out
208 next 208 next
209} 209}
210 210
211# file output input protect 211# file output input protect
212# Informational: the official name of the input file (without 212# Informational: the official name of the input file (without
213# make generated local directories), the official name of the 213# make generated local directories), the official name of the
214# output file and, if required, a name to use in a protection 214# output file and, if required, a name to use in a protection
215# macro for the contents. 215# macro for the contents.
216$1 == "file" && NF >= 2{ 216$1 == "file" && NF >= 2{
217 print comment, $2, cend >out 217 print comment, $2, cend >out
218 print comment, "Machine generated file: DO NOT EDIT", cend >out 218 print comment, "Machine generated file: DO NOT EDIT", cend >out
219 if (NF >= 3) 219 if (NF >= 3)
220 print comment, "Derived from:", $3, cend >out 220 print comment, "Derived from:", $3, cend >out
221 protect = $4 221 protect = $4
222 if (protect != "") { 222 if (protect != "") {
223 print start "#ifndef", protect end >out 223 print start "#ifndef", protect end >out
224 print start "#define", protect end >out 224 print start "#define", protect end >out
225 } 225 }
226 next 226 next
227} 227}
228 228
229# option NAME ( (requires|enables|if) NAME* | on | off | disabled )* 229# option NAME ( (requires|enables|if) NAME* | on | off | disabled )*
230# Declares an option 'NAME' and describes its default setting (disabled) 230# Declares an option 'NAME' and describes its default setting (disabled)
231# and its relationship to other options. The option is disabled 231# and its relationship to other options. The option is disabled
232# unless *all* the options listed after 'requires' are set and at 232# unless *all* the options listed after 'requires' are set and at
233# least one of the options listed after 'if' is set. If the 233# least one of the options listed after 'if' is set. If the
234# option is set then it turns on all the options listed after 'enables'. 234# option is set then it turns on all the options listed after 'enables'.
235# 235#
236# Note that "enables" takes priority over the required/if/disabled/off 236# Note that "enables" takes priority over the required/if/disabled/off
237# setting of the target option. 237# setting of the target option.
238# 238#
239# The definition file may list an option as 'disabled': off by default, 239# The definition file may list an option as 'disabled': off by default,
240# otherwise the option is enabled: on by default. A later (and it must 240# otherwise the option is enabled: on by default. A later (and it must
241# be later) entry may turn an option on or off explicitly. 241# be later) entry may turn an option on or off explicitly.
242 242
243$1 == "option" && NF >= 2{ 243$1 == "option" && NF >= 2{
244 onoff = option[$2] # records current (and the default is "", enabled) 244 onoff = option[$2] # records current (and the default is "", enabled)
245 key = "" 245 key = ""
246 for (i=3; i<=NF; ++i) { 246 for (i=3; i<=NF; ++i) {
247 if ($(i) == "on" || $(i) == "off" || $(i) == "disabled") { 247 if ($(i) == "on" || $(i) == "off" || $(i) == "disabled") {
248 key = "" 248 key = ""
249 if (onoff != $(i)) { 249 if (onoff != $(i)) {
250 # on or off can zap disabled or enabled: 250 # on or off can zap disabled or enabled:
251 if (onoff == "" || (onoff == "disabled" || onoff == "enabled") && ($(i) == "on" || $(i) == "off")) { 251 if (onoff == "" || (onoff == "disabled" || onoff == "enabled") && ($(i) == "on" || $(i) == "off")) {
252 # It's easy to mis-spell the option when turning it 252 # It's easy to mis-spell the option when turning it
253 # on or off, so warn about it here: 253 # on or off, so warn about it here:
254 if (onoff == "" && ($(i) == "on" || $(i) == "off")) { 254 if (onoff == "" && ($(i) == "on" || $(i) == "off")) {
255 print $2 ": ERROR: turning unrecognized option", $(i) 255 print $2 ": ERROR: turning unrecognized option", $(i)
256 # For the moment error out - it is safer 256 # For the moment error out - it is safer
257 err = 1 # prevent END{} running 257 err = 1 # prevent END{} running
258 exit 1 258 exit 1
259 } 259 }
260 onoff = $(i) 260 onoff = $(i)
261 } else { 261 } else {
262 # Print a message, otherwise the error 262 # Print a message, otherwise the error
263 # below is incomprehensible 263 # below is incomprehensible
264 print $2 ": currently", onoff ": attempt to turn", $(i) 264 print $2 ": currently", onoff ": attempt to turn", $(i)
265 break 265 break
266 } 266 }
267 } 267 }
268 } else if ($(i) == "requires" || $(i) == "if" || $(i) == "enables") { 268 } else if ($(i) == "requires" || $(i) == "if" || $(i) == "enables") {
269 key = $(i) 269 key = $(i)
270 } else if (key == "requires") { 270 } else if (key == "requires") {
271 requires[$2] = requires[$2] " " $(i) 271 requires[$2] = requires[$2] " " $(i)
272 } else if (key == "if") { 272 } else if (key == "if") {
273 iffs[$2] = iffs[$2] " " $(i) 273 iffs[$2] = iffs[$2] " " $(i)
274 } else if (key == "enables") { 274 } else if (key == "enables") {
275 enabledby[$(i)] = enabledby[$(i)] " " $2 275 enabledby[$(i)] = enabledby[$(i)] " " $2
276 } else 276 } else
277 break # bad line format 277 break # bad line format
278 } 278 }
279 279
280 if (i > NF) { 280 if (i > NF) {
281 # Set the option, defaulting to 'enabled' 281 # Set the option, defaulting to 'enabled'
282 if (onoff == "") onoff = "enabled" 282 if (onoff == "") onoff = "enabled"
283 option[$2] = onoff 283 option[$2] = onoff
284 next 284 next
285 } 285 }
286 # Else fall through to the error handler 286 # Else fall through to the error handler
287} 287}
288 288
289# chunk NAME [requires OPT] [on|off|disabled] 289# chunk NAME [requires OPT] [on|off|disabled]
290# Expands to the 'option' settings appropriate to the reading and 290# Expands to the 'option' settings appropriate to the reading and
291# writing of an ancilliary PNG chunk 'NAME': 291# writing of an ancilliary PNG chunk 'NAME':
292# 292#
293# option READ_NAME requires READ_ANCILLARY_CHUNKS [READ_OPT] 293# option READ_NAME requires READ_ANCILLARY_CHUNKS [READ_OPT]
294# option READ_NAME enables NAME 294# option READ_NAME enables NAME
295# [option READ_NAME off] 295# [option READ_NAME off]
296# option WRITE_NAME requires WRITE_ANCILLARY_CHUNKS [WRITE_OPT] 296# option WRITE_NAME requires WRITE_ANCILLARY_CHUNKS [WRITE_OPT]
297# option WRITE_NAME enables NAME 297# option WRITE_NAME enables NAME
298# [option WRITE_NAME off] 298# [option WRITE_NAME off]
299 299
300pre != 0 && $1 == "chunk" && NF >= 2{ 300pre != 0 && $1 == "chunk" && NF >= 2{
301 # 'chunk' is handled on the first pass by writing appropriate 301 # 'chunk' is handled on the first pass by writing appropriate
302 # 'option' lines into the intermediate file. 302 # 'option' lines into the intermediate file.
303 onoff = "" 303 onoff = ""
304 reqread = "" 304 reqread = ""
305 reqwrite = "" 305 reqwrite = ""
306 i = 3 # indicates format error 306 i = 3 # indicates format error
307 if (NF > 2) { 307 if (NF > 2) {
308 # read the keywords/additional OPTS 308 # read the keywords/additional OPTS
309 req = 0 309 req = 0
310 for (i=3; i<=NF; ++i) { 310 for (i=3; i<=NF; ++i) {
311 if ($(i) == "on" || $(i) == "off" || $(i) == "disabled") { 311 if ($(i) == "on" || $(i) == "off" || $(i) == "disabled") {
312 if (onoff != $(i)) { 312 if (onoff != $(i)) {
313 if (onoff == "") 313 if (onoff == "")
314 onoff = $(i) 314 onoff = $(i)
315 else 315 else
316 break # on/off conflict 316 break # on/off conflict
317 } 317 }
318 } else if ($(i) == "requires") 318 } else if ($(i) == "requires")
319 req = 1 319 req = 1
320 else if (req != 1) 320 else if (req != 1)
321 break # bad line: handled below 321 break # bad line: handled below
322 else { 322 else {
323 reqread = reqread " READ_" $(i) 323 reqread = reqread " READ_" $(i)
324 reqwrite = reqwrite " WRITE_" $(i) 324 reqwrite = reqwrite " WRITE_" $(i)
325 } 325 }
326 } 326 }
327 } 327 }
328 328
329 if (i > NF) { 329 if (i > NF) {
330 # Output new 'option' lines to the intermediate file (out) 330 # Output new 'option' lines to the intermediate file (out)
331 print "option READ_" $2, "requires READ_ANCILLARY_CHUNKS" reqread, "enables", $2, onoff >out 331 print "option READ_" $2, "requires READ_ANCILLARY_CHUNKS" reqread, "enables", $2, onoff >out
332 print "option WRITE_" $2, "requires WRITE_ANCILLARY_CHUNKS" reqwrite, "enables", $2, onoff >out 332 print "option WRITE_" $2, "requires WRITE_ANCILLARY_CHUNKS" reqwrite, "enables", $2, onoff >out
333 next 333 next
334 } 334 }
335 # Else hit the error handler below - bad line format! 335 # Else hit the error handler below - bad line format!
336} 336}
337 337
338# setting MACRO ( requires MACRO* )* [ default VALUE ] 338# setting MACRO ( requires MACRO* )* [ default VALUE ]
339# Behaves in a similar way to 'option' without looking for NO_ or 339# Behaves in a similar way to 'option' without looking for NO_ or
340# _SUPPORTED; the macro is enabled if it is defined so long as all 340# _SUPPORTED; the macro is enabled if it is defined so long as all
341# the 'requires' macros are also defined. The definitions may be 341# the 'requires' macros are also defined. The definitions may be
342# empty, an error will be issued if the 'requires' macros are 342# empty, an error will be issued if the 'requires' macros are
343# *not* defined. If given the 'default' value is used if the 343# *not* defined. If given the 'default' value is used if the
344# macro is not defined. The default value will be re-tokenised. 344# macro is not defined. The default value will be re-tokenised.
345# (BTW: this is somewhat restrictive, it mainly exists for the 345# (BTW: this is somewhat restrictive, it mainly exists for the
346# support of non-standard configurations and numeric parameters, 346# support of non-standard configurations and numeric parameters,
347# see the uses in scripts/options.dat 347# see the uses in scripts/options.dat
348 348
349$1 == "setting" && (NF == 2 || NF >= 3 && ($3 == "requires" || $3 == "default")){ 349$1 == "setting" && (NF == 2 || NF >= 3 && ($3 == "requires" || $3 == "default")){
350 reqs = "" 350 reqs = ""
351 deflt = "" 351 deflt = ""
352 isdef = 0 352 isdef = 0
353 key = "" 353 key = ""
354 for (i=3; i<=NF; ++i) 354 for (i=3; i<=NF; ++i)
355 if ($(i) == "requires" || $(i) == "default") { 355 if ($(i) == "requires" || $(i) == "default") {
356 key = $(i) 356 key = $(i)
357 if (key == "default") isdef = 1 357 if (key == "default") isdef = 1
358 } else if (key == "requires") 358 } else if (key == "requires")
359 reqs = reqs " " $(i) 359 reqs = reqs " " $(i)
360 else if (key == "default") 360 else if (key == "default")
361 deflt = deflt " " $(i) 361 deflt = deflt " " $(i)
362 else 362 else
363 break # Format error, handled below 363 break # Format error, handled below
364 364
365 setting[$2] = reqs 365 setting[$2] = reqs
366 # NOTE: this overwrites a previous value silently 366 # NOTE: this overwrites a previous value silently
367 if (isdef && deflt == "") 367 if (isdef && deflt == "")
368 deflt = " " # as a flag to force output 368 deflt = " " # as a flag to force output
369 defaults[$2] = deflt 369 defaults[$2] = deflt
370 next 370 next
371} 371}
372 372
373# The order of the dependency lines (option, chunk, setting) is irrelevant 373# The order of the dependency lines (option, chunk, setting) is irrelevant
374# - the 'enables', 'requires' and 'if' settings will be used to determine 374# - the 'enables', 'requires' and 'if' settings will be used to determine
375# the correct order in the output and the final values in pnglibconf.h are 375# the correct order in the output and the final values in pnglibconf.h are
376# not order dependent. 'requires' and 'if' entries take precedence over 376# not order dependent. 'requires' and 'if' entries take precedence over
377# 'enables' from other options; if an option requires another option it 377# 'enables' from other options; if an option requires another option it
378# won't be set regardless of any options that enable it unless the other 378# won't be set regardless of any options that enable it unless the other
379# option is also enabled. 379# option is also enabled.
380# 380#
381# Similarly 'enables' trumps a NO_ definition in CFLAGS or pngusr.h 381# Similarly 'enables' trumps a NO_ definition in CFLAGS or pngusr.h
382# 382#
383# For simplicity cycles in the definitions are regarded as errors, 383# For simplicity cycles in the definitions are regarded as errors,
384# even if they are not ambiguous. 384# even if they are not ambiguous.
385# A given NAME can be specified in as many 'option' lines as required, the 385# A given NAME can be specified in as many 'option' lines as required, the
386# definitions are additive. 386# definitions are additive.
387 387
388# For backwards compatibility equivalent macros may be listed thus: 388# For backwards compatibility equivalent macros may be listed thus:
389# 389#
390# = [NO_]NAME MACRO 390# = [NO_]NAME MACRO
391# Makes -DMACRO equivalent to -DPNG_NO_NAME or -DPNG_NAME_SUPPORTED 391# Makes -DMACRO equivalent to -DPNG_NO_NAME or -DPNG_NAME_SUPPORTED
392# as appropriate. 392# as appropriate.
393# 393#
394# The definition is injected into the C compiler input when encountered 394# The definition is injected into the C compiler input when encountered
395# in the second pass (so all these definitions appear *after* the @ 395# in the second pass (so all these definitions appear *after* the @
396# lines!) 396# lines!)
397# 397#
398# 'NAME' is as above, but 'MACRO' is the full text of the equivalent 398# 'NAME' is as above, but 'MACRO' is the full text of the equivalent
399# old, deprecated, macro. 399# old, deprecated, macro.
400 400
401$1 == "=" && NF == 3{ 401$1 == "=" && NF == 3{
402 print "#ifdef PNG_" $3 >out 402 print "#ifdef PNG_" $3 >out
403 if ($2 ~ /^NO_/) 403 if ($2 ~ /^NO_/)
404 print "# define PNG_" $2 >out 404 print "# define PNG_" $2 >out
405 else 405 else
406 print "# define PNG_" $2 "_SUPPORTED" >out 406 print "# define PNG_" $2 "_SUPPORTED" >out
407 print "#endif" >out 407 print "#endif" >out
408 next 408 next
409} 409}
410 410
411# Lines may be injected into the C compiler input by preceding them 411# Lines may be injected into the C compiler input by preceding them
412# with an "@" character. The line is copied with just the leading 412# with an "@" character. The line is copied with just the leading
413# @ removed. 413# @ removed.
414 414
415$1 ~ /^@/{ 415$1 ~ /^@/{
416 # sub(/^[ ]*@/, "") 416 # sub(/^[ ]*@/, "")
417 $1 = substr($1, 2) 417 $1 = substr($1, 2)
418 print >out 418 print >out
419 next 419 next
420} 420}
421 421
422# Check for unreognized lines, because of the preprocessing chunk 422# Check for unreognized lines, because of the preprocessing chunk
423# format errors will be detected on the first pass independent of 423# format errors will be detected on the first pass independent of
424# any other format errors. 424# any other format errors.
425{ 425{
426 print "options.awk: bad line (" NR "):", $0 426 print "options.awk: bad line (" NR "):", $0
427 err = 1 # prevent END{} running 427 err = 1 # prevent END{} running
428 exit 1 428 exit 1
429} 429}
430 430
431# For checking purposes names that start with "ok_" or "fail_" are 431# For checking purposes names that start with "ok_" or "fail_" are
432# not output to pnglibconf.h and must be either enabled or disabled 432# not output to pnglibconf.h and must be either enabled or disabled
433# respectively for the build to succeed. This allows interdependencies 433# respectively for the build to succeed. This allows interdependencies
434# between options of the form "at least one of" or "at most one of" 434# between options of the form "at least one of" or "at most one of"
435# to be checked. For example: 435# to be checked. For example:
436# 436#
437# option FLOATING_POINT enables ok_math 437# option FLOATING_POINT enables ok_math
438# option FIXED_POINT enables ok_math 438# option FIXED_POINT enables ok_math
439# This ensures that at least one of FLOATING_POINT and FIXED_POINT 439# This ensures that at least one of FLOATING_POINT and FIXED_POINT
440# must be set for the build to succeed. 440# must be set for the build to succeed.
441# 441#
442# option fail_math requires FLOATING_POINT FIXED_POINT 442# option fail_math requires FLOATING_POINT FIXED_POINT
443# This means the build will fail if *both* FLOATING_POINT and 443# This means the build will fail if *both* FLOATING_POINT and
444# FIXED_POINT are set (this is an example; in fact both are allowed.) 444# FIXED_POINT are set (this is an example; in fact both are allowed.)
445# 445#
446# If all these options were given the build would require exactly one 446# If all these options were given the build would require exactly one
447# of the names to be enabled. 447# of the names to be enabled.
448 448
449END{ 449END{
450 # END{} gets run on an exit (a traditional awk feature) 450 # END{} gets run on an exit (a traditional awk feature)
451 if (err) exit 1 451 if (err) exit 1
452 452
453 if (pre) { 453 if (pre) {
454 # Record the final value of the variables 454 # Record the final value of the variables
455 print "deb =", deb >out 455 print "deb =", deb >out
456 if (everything != "") { 456 if (everything != "") {
457 print "everything =", everything >out 457 print "everything =", everything >out
458 } 458 }
459 print "logunsupported =", logunsupported >out 459 print "logunsupported =", logunsupported >out
460 exit 0 460 exit 0
461 } 461 }
462 462
463 # Do the 'setting' values first, the algorithm the standard 463 # Do the 'setting' values first, the algorithm the standard
464 # tree walk (O(1)) done in an O(2) while/for loop; interations 464 # tree walk (O(1)) done in an O(2) while/for loop; interations
465 # settings x depth, outputing the deepest required macros 465 # settings x depth, outputing the deepest required macros
466 # first. 466 # first.
467 print "" >out 467 print "" >out
468 print "/* SETTINGS */" >out 468 print "/* SETTINGS */" >out
469 print comment, "settings", cend >out 469 print comment, "settings", cend >out
470 finished = 0 470 finished = 0
471 while (!finished) { 471 while (!finished) {
472 finished = 1 472 finished = 1
473 movement = 0 # done nothing 473 movement = 0 # done nothing
474 for (i in setting) if (!doneset[i]) { 474 for (i in setting) if (!doneset[i]) {
475 nreqs = split(setting[i], r) 475 nreqs = split(setting[i], r)
476 if (nreqs > 0) { 476 if (nreqs > 0) {
477 for (j=1; j<=nreqs; ++j) if (!doneset[r[j]]) { 477 for (j=1; j<=nreqs; ++j) if (!doneset[r[j]]) {
478 break 478 break
479 } 479 }
480 if (j<=nreqs) { 480 if (j<=nreqs) {
481 finished = 0 481 finished = 0
482 continue # try a different setting 482 continue # try a different setting
483 } 483 }
484 } 484 }
485 485
486 # All the requirements have been processed, output 486 # All the requirements have been processed, output
487 # this setting. 487 # this setting.
488 if (deb) print "setting", i 488 if (deb) print "setting", i
489 print "" >out 489 print "" >out
490 print "/* setting: ", i >out 490 print "/* setting: ", i >out
491 print " * requires:" setting[i] >out 491 print " * requires:" setting[i] >out
492 print " * default: ", defaults[i], "*/" >out 492 print " * default: ", defaults[i], "*/" >out
493 if (defaults[i] == "") { # no default, only check if defined 493 if (defaults[i] == "") { # no default, only check if defined
494 print "#ifdef PNG_" i >out 494 print "#ifdef PNG_" i >out
495 } 495 }
496 for (j=1; j<=nreqs; ++j) { 496 for (j=1; j<=nreqs; ++j) {
497 print "# ifndef PNG_" r[j] >out 497 print "# ifndef PNG_" r[j] >out
498 print error, i, "requires", r[j] end >out 498 print error, i, "requires", r[j] end >out
499 print "# endif" >out 499 print "# endif" >out
500 } 500 }
501 if (defaults[i] != "") { # default handling 501 if (defaults[i] != "") { # default handling
502 print "#ifdef PNG_" i >out 502 print "#ifdef PNG_" i >out
503 } 503 }
504 print def i, "PNG_" i end >out 504 print def i, "PNG_" i end >out
505 if (defaults[i] != "") { 505 if (defaults[i] != "") {
506 print "#else /*default*/" >out 506 print "#else /*default*/" >out
507 # And add the default definition for the benefit 507 # And add the default definition for the benefit
508 # of later settings an options test: 508 # of later settings an options test:
509 print "# define PNG_" i defaults[i] >out 509 print "# define PNG_" i defaults[i] >out
510 print def i defaults[i] end >out 510 print def i defaults[i] end >out
511 } 511 }
512 print "#endif" >out 512 print "#endif" >out
513 513
514 doneset[i] = 1 514 doneset[i] = 1
515 ++movement 515 ++movement
516 } 516 }
517 517
518 if (!finished && !movement) { 518 if (!finished && !movement) {
519 print "setting: loop or missing setting in 'requires', cannot process:" 519 print "setting: loop or missing setting in 'requires', cannot process:"
520 for (i in setting) if (!doneset[i]) { 520 for (i in setting) if (!doneset[i]) {
521 print " setting", i, "requires" setting[i] 521 print " setting", i, "requires" setting[i]
522 } 522 }
523 exit 1 523 exit 1
524 } 524 }
525 } 525 }
526 print comment, "end of settings", cend >out 526 print comment, "end of settings", cend >out
527 527
528 # Now do the options - somewhat more complex. The dependency 528 # Now do the options - somewhat more complex. The dependency
529 # tree is thus: 529 # tree is thus:
530 # 530 #
531 # name > name 531 # name > name
532 # name requires name 532 # name requires name
533 # name if name 533 # name if name
534 # name enabledby name 534 # name enabledby name
535 # 535 #
536 # First build a list 'tree' by option of all the things on which 536 # First build a list 'tree' by option of all the things on which
537 # it depends. 537 # it depends.
538 print "" >out 538 print "" >out
539 print "/* OPTIONS */" >out 539 print "/* OPTIONS */" >out
540 print comment, "options", cend >out 540 print comment, "options", cend >out
541 for (opt in enabledby) tree[opt] = 1 # may not be explicit options 541 for (opt in enabledby) tree[opt] = 1 # may not be explicit options
542 for (opt in option) if (opt != "") { 542 for (opt in option) if (opt != "") {
543 o = option[opt] 543 o = option[opt]
544 # option should always be one of the following values 544 # option should always be one of the following values
545 if (o != "on" && o != "off" && o != "disabled" && o != "enabled") { 545 if (o != "on" && o != "off" && o != "disabled" && o != "enabled") {
546 print "internal option error (" o ")" 546 print "internal option error (" o ")"
547 exit 1 547 exit 1
548 } 548 }
549 tree[opt] = "" # so unlisted options marked 549 tree[opt] = "" # so unlisted options marked
550 } 550 }
551 for (opt in tree) if (opt != "") { 551 for (opt in tree) if (opt != "") {
552 if (tree[opt] == 1) { 552 if (tree[opt] == 1) {
553 tree[opt] = "" 553 tree[opt] = ""
554 if (option[opt] != "") { 554 if (option[opt] != "") {
555 print "internal error (1)" 555 print "internal error (1)"
556 exit 1 556 exit 1
557 } 557 }
558 # Macros only listed in 'enables' remain off unless 558 # Macros only listed in 'enables' remain off unless
559 # one of the enabling macros is on. 559 # one of the enabling macros is on.
560 option[opt] = "disabled" 560 option[opt] = "disabled"
561 } 561 }
562 562
563 split("", list) # clear 'list' 563 split("", list) # clear 'list'
564 # Now add every requires, iffs or enabledby entry to 'list' 564 # Now add every requires, iffs or enabledby entry to 'list'
565 # so that we can add a unique list of requirements to tree[i] 565 # so that we can add a unique list of requirements to tree[i]
566 split(requires[opt] iffs[opt] enabledby[opt], r) 566 split(requires[opt] iffs[opt] enabledby[opt], r)
567 for (i in r) list[r[i]] = 1 567 for (i in r) list[r[i]] = 1
568 for (i in list) tree[opt] = tree[opt] " " i 568 for (i in list) tree[opt] = tree[opt] " " i
569 } 569 }
570 570
571 # print the tree for extreme debugging 571 # print the tree for extreme debugging
572 if (deb > 2) for (i in tree) if (i != "") print i, "depends-on" tree[i] 572 if (deb > 2) for (i in tree) if (i != "") print i, "depends-on" tree[i]
573 573
574 # Ok, now check all options marked explicitly 'on' or 'off': 574 # Ok, now check all options marked explicitly 'on' or 'off':
575 # 575 #
576 # If an option[opt] is 'on' then turn on all requires[opt] 576 # If an option[opt] is 'on' then turn on all requires[opt]
577 # If an option[opt] is 'off' then turn off all enabledby[opt] 577 # If an option[opt] is 'off' then turn off all enabledby[opt]
578 # 578 #
579 # Error out if we have to turn 'on' an 'off' option or vice versa. 579 # Error out if we have to turn 'on' an 'off' option or vice versa.
580 npending = 0 580 npending = 0
581 for (opt in option) if (opt != "") { 581 for (opt in option) if (opt != "") {
582 if (option[opt] == "on" || option[opt] == "off") { 582 if (option[opt] == "on" || option[opt] == "off") {
583 pending[++npending] = opt 583 pending[++npending] = opt
584 } 584 }
585 } 585 }
586 586
587 err = 0 # set on error 587 err = 0 # set on error
588 while (npending > 0) { 588 while (npending > 0) {
589 opt = pending[npending--] 589 opt = pending[npending--]
590 if (option[opt] == "on") { 590 if (option[opt] == "on") {
591 nreqs = split(requires[opt], r) 591 nreqs = split(requires[opt], r)
592 for (j=1; j<=nreqs; ++j) { 592 for (j=1; j<=nreqs; ++j) {
593 if (option[r[j]] == "off") { 593 if (option[r[j]] == "off") {
594 print "option", opt, "turned on, but requirement", r[j], "is turned off" 594 print "option", opt, "turned on, but requirement", r[j], "is turned off"
595 err = 1 595 err = 1
596 } else if (option[r[j]] != "on") { 596 } else if (option[r[j]] != "on") {
597 option[r[j]] = "on" 597 option[r[j]] = "on"
598 pending[++npending] = r[j] 598 pending[++npending] = r[j]
599 } 599 }
600 } 600 }
601 } else { 601 } else {
602 if (option[opt] != "off") { 602 if (option[opt] != "off") {
603 print "internal error (2)" 603 print "internal error (2)"
604 exit 1 604 exit 1
605 } 605 }
606 nreqs = split(enabledby[opt], r) 606 nreqs = split(enabledby[opt], r)
607 for (j=1; j<=nreqs; ++j) { 607 for (j=1; j<=nreqs; ++j) {
608 if (option[r[j]] == "on") { 608 if (option[r[j]] == "on") {
609 print "option", opt, "turned off, but enabled by", r[j], "which is turned on" 609 print "option", opt, "turned off, but enabled by", r[j], "which is turned on"
610 err = 1 610 err = 1
611 } else if (option[r[j]] != "off") { 611 } else if (option[r[j]] != "off") {
612 option[r[j]] = "off" 612 option[r[j]] = "off"
613 pending[++npending] = r[j] 613 pending[++npending] = r[j]
614 } 614 }
615 } 615 }
616 } 616 }
617 } 617 }
618 if (err) exit 1 618 if (err) exit 1
619 619
620 # option[i] is now the complete list of all the tokens we may 620 # option[i] is now the complete list of all the tokens we may
621 # need to output, go through it as above, depth first. 621 # need to output, go through it as above, depth first.
622 finished = 0 622 finished = 0
623 while (!finished) { 623 while (!finished) {
624 finished = 1 624 finished = 1
625 movement = 0 # done nothing 625 movement = 0 # done nothing
626 for (i in option) if (!done[i]) { 626 for (i in option) if (!done[i]) {
627 nreqs = split(tree[i], r) 627 nreqs = split(tree[i], r)
628 if (nreqs > 0) { 628 if (nreqs > 0) {
629 for (j=1; j<=nreqs; ++j) if (!done[r[j]]) { 629 for (j=1; j<=nreqs; ++j) if (!done[r[j]]) {
630 break 630 break
631 } 631 }
632 if (j<=nreqs) { 632 if (j<=nreqs) {
633 finished = 0 633 finished = 0
634 continue # next option 634 continue # next option
635 } 635 }
636 } 636 }
637 637
638 # All the requirements have been processed, output 638 # All the requirements have been processed, output
639 # this option. An option is _SUPPORTED if: 639 # this option. An option is _SUPPORTED if:
640 # 640 #
641 # all 'requires' are _SUPPORTED AND 641 # all 'requires' are _SUPPORTED AND
642 # at least one of the 'if' options are _SUPPORTED AND 642 # at least one of the 'if' options are _SUPPORTED AND
643 # EITHER: 643 # EITHER:
644 # The name is _SUPPORTED (on the command line) 644 # The name is _SUPPORTED (on the command line)
645 # OR: 645 # OR:
646 # an 'enabledby' is _SUPPORTED 646 # an 'enabledby' is _SUPPORTED
647 # OR: 647 # OR:
648 # NO_name is not defined AND 648 # NO_name is not defined AND
649 # the option is not disabled; an option is disabled if: 649 # the option is not disabled; an option is disabled if:
650 # option == off 650 # option == off
651 # option == disabled && everything != on 651 # option == disabled && everything != on
652 # option == "" && everything == off 652 # option == "" && everything == off
653 if (deb) print "option", i 653 if (deb) print "option", i
654 print "" >out 654 print "" >out
655 print "/* option:", i, option[i] >out 655 print "/* option:", i, option[i] >out
656 print " * requires: " requires[i] >out 656 print " * requires: " requires[i] >out
657 print " * if: " iffs[i] >out 657 print " * if: " iffs[i] >out
658 print " * enabled-by:" enabledby[i], "*/" >out 658 print " * enabled-by:" enabledby[i], "*/" >out
659 print "#undef PNG_on" >out 659 print "#undef PNG_on" >out
660 print "#define PNG_on 1" >out 660 print "#define PNG_on 1" >out
661 661
662 # requires 662 # requires
663 nreqs = split(requires[i], r) 663 nreqs = split(requires[i], r)
664 for (j=1; j<=nreqs; ++j) { 664 for (j=1; j<=nreqs; ++j) {
665 print "#ifndef PNG_" r[j] "_SUPPORTED" >out 665 print "#ifndef PNG_" r[j] "_SUPPORTED" >out
666 print "# undef PNG_on /*!" r[j] "*/" >out 666 print "# undef PNG_on /*!" r[j] "*/" >out
667 # this error appears in the final output if something 667 # this error appears in the final output if something
668 # was switched 'on' but the processing above to force 668 # was switched 'on' but the processing above to force
669 # the requires did not work 669 # the requires did not work
670 if (option[i] == "on") { 670 if (option[i] == "on") {
671 print error, i, "requires", r[j] end >out 671 print error, i, "requires", r[j] end >out
672 } 672 }
673 print "#endif" >out 673 print "#endif" >out
674 } 674 }
675 675
676 # if 676 # if
677 nreqs = split(iffs[i], r) 677 nreqs = split(iffs[i], r)
678 print "#undef PNG_no_if" >out 678 print "#undef PNG_no_if" >out
679 if (nreqs > 0) { 679 if (nreqs > 0) {
680 print "/* if" iffs[i], "*/" >out 680 print "/* if" iffs[i], "*/" >out
681 print "#define PNG_no_if 1" >out 681 print "#define PNG_no_if 1" >out
682 for (j=1; j<=nreqs; ++j) { 682 for (j=1; j<=nreqs; ++j) {
683 print "#ifdef PNG_" r[j] "_SUPPORTED" >out 683 print "#ifdef PNG_" r[j] "_SUPPORTED" >out
684 print "# undef PNG_no_if /*" r[j] "*/" >out 684 print "# undef PNG_no_if /*" r[j] "*/" >out
685 print "#endif" >out 685 print "#endif" >out
686 } 686 }
687 print "#ifdef PNG_no_if /*missing if*/" >out 687 print "#ifdef PNG_no_if /*missing if*/" >out
688 print "# undef PNG_on" >out 688 print "# undef PNG_on" >out
689 # There is no checking above for this, because we 689 # There is no checking above for this, because we
690 # don't know which 'if' to choose, so whine about 690 # don't know which 'if' to choose, so whine about
691 # it here: 691 # it here:
692 if (option[i] == "on") { 692 if (option[i] == "on") {
693 print error, i, "needs one of:", iffs[i] end >out 693 print error, i, "needs one of:", iffs[i] end >out
694 } 694 }
695 print "#endif" >out 695 print "#endif" >out
696 } 696 }
697 697
698 print "#ifdef PNG_on /*requires, if*/" >out 698 print "#ifdef PNG_on /*requires, if*/" >out
699 # enables 699 # enables
700 print "# undef PNG_not_enabled" >out 700 print "# undef PNG_not_enabled" >out
701 print "# define PNG_not_enabled 1" >out 701 print "# define PNG_not_enabled 1" >out
702 print " /* enabled by" enabledby[i], "*/" >out 702 print " /* enabled by" enabledby[i], "*/" >out
703 nreqs = split(enabledby[i], r) 703 nreqs = split(enabledby[i], r)
704 for (j=1; j<=nreqs; ++j) { 704 for (j=1; j<=nreqs; ++j) {
705 print "#ifdef PNG_" r[j] "_SUPPORTED" >out 705 print "#ifdef PNG_" r[j] "_SUPPORTED" >out
706 print "# undef PNG_not_enabled /*" r[j] "*/" >out 706 print "# undef PNG_not_enabled /*" r[j] "*/" >out
707 # Oops, probably not intended (should be factored 707 # Oops, probably not intended (should be factored
708 # out by the checks above). 708 # out by the checks above).
709 if (option[i] == "off") { 709 if (option[i] == "off") {
710 print error, i, "enabled by:", r[j] end >out 710 print error, i, "enabled by:", r[j] end >out
711 } 711 }
712 print "#endif" >out 712 print "#endif" >out
713 } 713 }
714 714
715 print "# ifndef PNG_" i "_SUPPORTED /*!command line*/" >out 715 print "# ifndef PNG_" i "_SUPPORTED /*!command line*/" >out
716 print "# ifdef PNG_not_enabled /*!enabled*/" >out 716 print "# ifdef PNG_not_enabled /*!enabled*/" >out
717 if (option[i] == "off" || option[i] == "disabled" && everything != "on" || option[i] == "enabled" && everything == "off") { 717 if (option[i] == "off" || option[i] == "disabled" && everything != "on" || option[i] == "enabled" && everything == "off") {
718 print "# undef PNG_on /*default off*/" >out 718 print "# undef PNG_on /*default off*/" >out
719 } else { 719 } else {
720 print "# ifdef PNG_NO_" i >out 720 print "# ifdef PNG_NO_" i >out
721 print "# undef PNG_on /*turned off*/" >out 721 print "# undef PNG_on /*turned off*/" >out
722 print "# endif" >out 722 print "# endif" >out
723 print "# ifdef PNG_NO_" i "_SUPPORTED" >out 723 print "# ifdef PNG_NO_" i "_SUPPORTED" >out
724 print "# undef PNG_on /*turned off*/" >out 724 print "# undef PNG_on /*turned off*/" >out
725 print "# endif" >out 725 print "# endif" >out
726 } 726 }
727 print "# endif /*!enabled*/" >out 727 print "# endif /*!enabled*/" >out
728 print "# ifdef PNG_on" >out 728 print "# ifdef PNG_on" >out
729 # The _SUPPORTED macro must be defined so that dependent 729 # The _SUPPORTED macro must be defined so that dependent
730 # options output later work. 730 # options output later work.
731 print "# define PNG_" i "_SUPPORTED" >out 731 print "# define PNG_" i "_SUPPORTED" >out
732 print "# endif" >out 732 print "# endif" >out
733 print "# endif /*!command line*/" >out 733 print "# endif /*!command line*/" >out
734 # If PNG_on is still set the option should be defined in 734 # If PNG_on is still set the option should be defined in
735 # pnglibconf.h 735 # pnglibconf.h
736 print "# ifdef PNG_on" >out 736 print "# ifdef PNG_on" >out
737 if (i ~ /^fail_/) { 737 if (i ~ /^fail_/) {
738 print error, i, "is on: enabled by:" iffs[i] enabledby[i] ", requires" requires[i] end >out 738 print error, i, "is on: enabled by:" iffs[i] enabledby[i] ", requires" requires[i] end >out
739 } else if (i !~ /^ok_/) { 739 } else if (i !~ /^ok_/) {
740 print def i sup >out 740 print def i sup >out
741 } 741 }
742 print "# endif /* definition */" >out 742 print "# endif /* definition */" >out
743 print "#endif /*requires, if*/" >out 743 print "#endif /*requires, if*/" >out
744 if (logunsupported || i ~ /^ok_/) { 744 if (logunsupported || i ~ /^ok_/) {
745 print "#ifndef PNG_on" >out 745 print "#ifndef PNG_on" >out
746 if (logunsupported) { 746 if (logunsupported) {
747 print und i une >out 747 print und i une >out
748 } 748 }
749 if (i ~ /^ok_/) { 749 if (i ~ /^ok_/) {
750 print error, i, "not enabled: requires:" requires[i] ", enabled by:" iffs[i] enabledby[i] end >out 750 print error, i, "not enabled: requires:" requires[i] ", enabled by:" iffs[i] enabledby[i] end >out
751 } 751 }
752 print "#endif" >out 752 print "#endif" >out
753 } 753 }
754 754
755 done[i] = 1 755 done[i] = 1
756 ++movement 756 ++movement
757 } 757 }
758 758
759 if (!finished && !movement) { 759 if (!finished && !movement) {
760 print "option: loop or missing option in dependency tree, cannot process:" 760 print "option: loop or missing option in dependency tree, cannot process:"
761 for (i in option) if (!done[i]) { 761 for (i in option) if (!done[i]) {
762 print " option", i, "depends on" tree[i], "needs:" 762 print " option", i, "depends on" tree[i], "needs:"
763 nreqs = split(tree[i], r) 763 nreqs = split(tree[i], r)
764 if (nreqs > 0) for (j=1; j<=nreqs; ++j) if (!done[r[j]]) { 764 if (nreqs > 0) for (j=1; j<=nreqs; ++j) if (!done[r[j]]) {
765 print " " r[j] 765 print " " r[j]
766 } 766 }
767 } 767 }
768 exit 1 768 exit 1
769 } 769 }
770 } 770 }
771 print comment, "end of options", cend >out 771 print comment, "end of options", cend >out
772 772
773 # Regular end - everything looks ok 773 # Regular end - everything looks ok
774 if (protect != "") { 774 if (protect != "") {
775 print start "#endif", cx, protect, "*/" end >out 775 print start "#endif", cx, protect, "*/" end >out
776 } 776 }
777} 777}
generated by cgit v1.1 at 2024-09-09 08:24:23 +0000