src/third-party/libpng/Makefile.am (view raw)
1# Makefile.am:
2# Source file for Makefile.in (and hence Makefile)
3#
4
5PNGLIB_BASENAME= libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@
6
7ACLOCAL_AMFLAGS = -I scripts
8
9# test programs - run on make check, make distcheck
10check_PROGRAMS= pngtest pngunknown pngstest pngvalid pngimage
11
12# Utilities - installed
13bin_PROGRAMS= pngfix png-fix-itxt
14
15# This ensures that pnglibconf.h gets built at the start of 'make all' or
16# 'make check', but it does not add dependencies to the individual programs,
17# this is done below.
18#
19# IMPORTANT: always add the object modules of new programs to the list below
20# because otherwise the sequence 'configure; make new-program' will *sometimes*
21# result in the installed (system) pnglibconf.h being used and the result is
22# always wrong and always very confusing.
23BUILT_SOURCES = pnglibconf.h
24
25pngtest_SOURCES = pngtest.c
26pngtest_LDADD = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la
27
28pngvalid_SOURCES = contrib/libtests/pngvalid.c
29pngvalid_LDADD = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la
30
31pngstest_SOURCES = contrib/libtests/pngstest.c
32pngstest_LDADD = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la
33
34pngunknown_SOURCES = contrib/libtests/pngunknown.c
35pngunknown_LDADD = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la
36
37pngimage_SOURCES = contrib/libtests/pngimage.c
38pngimage_LDADD = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la
39
40pngfix_SOURCES = contrib/tools/pngfix.c
41pngfix_LDADD = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la
42
43png_fix_itxt_SOURCES = contrib/tools/png-fix-itxt.c
44
45# Generally these are single line shell scripts to run a test with a particular
46# set of parameters:
47TESTS =\
48 tests/pngtest\
49 tests/pngvalid-gamma-16-to-8 tests/pngvalid-gamma-alpha-mode\
50 tests/pngvalid-gamma-background tests/pngvalid-gamma-expand16-alpha-mode\
51 tests/pngvalid-gamma-expand16-background\
52 tests/pngvalid-gamma-expand16-transform tests/pngvalid-gamma-sbit\
53 tests/pngvalid-gamma-threshold tests/pngvalid-gamma-transform\
54 tests/pngvalid-progressive-interlace-size\
55 tests/pngvalid-progressive-interlace-standard\
56 tests/pngvalid-progressive-interlace-transform\
57 tests/pngvalid-progressive-standard tests/pngvalid-standard\
58 tests/pngstest-0g01 tests/pngstest-0g02 tests/pngstest-0g04\
59 tests/pngstest-0g08 tests/pngstest-0g16 tests/pngstest-2c08\
60 tests/pngstest-2c16 tests/pngstest-3p01 tests/pngstest-3p02\
61 tests/pngstest-3p04 tests/pngstest-3p08 tests/pngstest-4a08\
62 tests/pngstest-4a16 tests/pngstest-6a08 tests/pngstest-6a16\
63 tests/pngstest-error tests/pngunknown-IDAT\
64 tests/pngunknown-discard tests/pngunknown-if-safe tests/pngunknown-sAPI\
65 tests/pngunknown-sTER tests/pngunknown-save tests/pngunknown-vpAg\
66 tests/pngimage-quick tests/pngimage-full
67
68# These tests are expected, and required, to fail:
69XFAIL_TESTS = tests/pngstest-error
70
71# man pages
72dist_man_MANS= libpng.3 libpngpf.3 png.5
73
74# generate the -config scripts if required
75binconfigs= libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@-config
76EXTRA_SCRIPTS= libpng-config libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@-config
77bin_SCRIPTS= @binconfigs@
78
79# rules to build libpng, only build the old library on request
80lib_LTLIBRARIES=libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la
81# EXTRA_LTLIBRARIES= libpng.la
82libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_SOURCES = png.c pngerror.c\
83 pngget.c pngmem.c pngpread.c pngread.c pngrio.c pngrtran.c pngrutil.c\
84 pngset.c pngtrans.c pngwio.c pngwrite.c pngwtran.c pngwutil.c\
85 png.h pngconf.h pngdebug.h pnginfo.h pngpriv.h pngstruct.h pngusr.dfa
86
87if PNG_ARM_NEON
88libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_SOURCES += arm/arm_init.c\
89 arm/filter_neon.S arm/filter_neon_intrinsics.c
90endif
91
92nodist_libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_SOURCES = pnglibconf.h
93
94libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_LDFLAGS = -no-undefined -export-dynamic \
95 -version-number @PNGLIB_MAJOR@@PNGLIB_MINOR@:@PNGLIB_RELEASE@:0
96
97if HAVE_LD_VERSION_SCRIPT
98# Versioned symbols and restricted exports
99if HAVE_SOLARIS_LD
100 libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_LDFLAGS += -Wl,-M -Wl,libpng.vers
101else
102 libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_LDFLAGS += -Wl,--version-script=libpng.vers
103endif
104
105 libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_DEPENDENCIES = libpng.vers
106else
107# Only restricted exports when possible
108 libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_LDFLAGS += -export-symbols libpng.sym
109 libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_DEPENDENCIES = libpng.sym
110endif
111
112#distribute headers in /usr/include/libpng/*
113pkgincludedir= $(includedir)/$(PNGLIB_BASENAME)
114pkginclude_HEADERS= png.h pngconf.h
115nodist_pkginclude_HEADERS= pnglibconf.h
116
117# pkg-config stuff, note that libpng.pc is always required in order
118# to get the correct library
119pkgconfigdir = @pkgconfigdir@
120pkgconfig_DATA = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.pc
121
122# Extra source distribution files, '${srcdir}' is used below to stop build files
123# from those directories being included. This only works if the configure is
124# not done in the source directory!
125EXTRA_DIST= \
126 ANNOUNCE CHANGES INSTALL LICENSE README TODO \
127 pngtest.png pngbar.png pngnow.png pngbar.jpg autogen.sh \
128 ${srcdir}/contrib ${srcdir}/projects ${srcdir}/scripts \
129 $(TESTS) $(XFAIL_TESTS) tests/pngstest \
130 CMakeLists.txt example.c libpng-manual.txt
131
132SCRIPT_CLEANFILES=scripts/*.out scripts/*.chk
133
134CLEANFILES= *.tf? pngout.png libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.pc \
135 libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@-config libpng.vers libpng.sym \
136 check.new pnglibconf.h pngprefix.h symbols.new pngtest-log.txt \
137 pnglibconf.out pnglibconf.c pnglibconf.pre pnglibconf.dfn \
138 $(SCRIPT_CLEANFILES)
139
140MAINTAINERCLEANFILES = Makefile.in aclocal.m4 config.guess config.h.in \
141config.sub configure depcomp install-sh ltmain.sh missing
142
143# PNG_COPTS give extra options for the C compiler to be used on all compilation
144# steps (unless targe_CFLAGS is specified; that will take precedence over
145# AM_CFLAGS)
146PNG_COPTS = @PNG_COPTS@
147AM_CFLAGS = ${PNG_COPTS}
148
149# DFNCPP is normally just CPP - the C preprocessor - but on Solaris and maybe
150# other operating systems (NeXT?) the C preprocessor selected by configure
151# checks input tokens for validity - effectively it performs part of the ANSI-C
152# parsing - and therefore fails with the .df files. configure.ac has special
153# checks for this and sets DFNCPP appropriately.
154DFNCPP = @DFNCPP@
155
156SUFFIXES = .chk .out
157
158$(PNGLIB_BASENAME).pc: libpng.pc
159 cp libpng.pc $@
160
161$(PNGLIB_BASENAME)-config: libpng-config
162 cp libpng-config $@
163
164scripts/sym.out scripts/vers.out: png.h pngconf.h pnglibconf.h
165scripts/prefix.out: png.h pngconf.h pnglibconf.out
166scripts/symbols.out: png.h pngconf.h $(srcdir)/scripts/pnglibconf.h.prebuilt
167scripts/intprefix.out: pnglibconf.h
168
169libpng.sym: scripts/sym.out
170 rm -f $@
171 cp $? $@
172libpng.vers: scripts/vers.out
173 rm -f $@
174 cp $? $@
175
176if DO_PNG_PREFIX
177# Rename functions in scripts/prefix.out with a PNG_PREFIX prefix.
178# Rename macros in scripts/macro.lst from PNG_PREFIXpng_ to PNG_ (the actual
179# implementation of the macro).
180pnglibconf.h: pnglibconf.out scripts/prefix.out scripts/macro.lst
181 rm -f $@
182 $(AWK) 's==0 && NR>1{print prev}\
183 s==0{prev=$$0}\
184 s==1{print "#define", $$1, "@PNG_PREFIX@" $$1}\
185 s==2{print "#define @PNG_PREFIX@png_" $$1, "PNG_" $$1}\
186 END{print prev}' s=0 pnglibconf.out s=1 scripts/prefix.out\
187 s=2 ${srcdir}/scripts/macro.lst >pnglibconf.tf8
188 mv pnglibconf.tf8 $@
189
190pngprefix.h: scripts/intprefix.out
191 rm -f pngprefix.tf1
192 $(AWK) '{print "#define", $$1, "@PNG_PREFIX@" $$1}' $? >pngprefix.tf1
193 mv pngprefix.tf1 $@
194else
195pnglibconf.h: pnglibconf.out
196 rm -f $@
197 cp $? $@
198
199pngprefix.h: # is empty
200 :>$@
201endif
202
203$(srcdir)/scripts/pnglibconf.h.prebuilt:
204 @echo "Attempting to build $@" >&2
205 @echo "This is a machine generated file, but if you want to make" >&2
206 @echo "a new one simply make 'scripts/pnglibconf.out', copy that" >&2
207 @echo "AND set PNG_ZLIB_VERNUM to 0 (you MUST do this)" >&2
208 @exit 1
209
210# The following is necessary to ensure that the local pnglibconf.h is used, not
211# an installed one (this can happen immediately after on a clean system if
212# 'make test' is the first thing the user does.) Only files which include
213# one of the png source files (typically png.h or pngpriv.h) need to be listed
214# here:
215pngtest.o: pnglibconf.h
216
217contrib/libtests/makepng.o: pnglibconf.h
218contrib/libtests/pngstest.o: pnglibconf.h
219contrib/libtests/pngunknown.o: pnglibconf.h
220contrib/libtests/pngimage.o: pnglibconf.h
221contrib/libtests/pngvalid.o: pnglibconf.h
222contrib/libtests/readpng.o: pnglibconf.h
223contrib/libtests/tarith.o: pnglibconf.h
224contrib/libtests/timepng.o: pnglibconf.h
225
226contrib/tools/makesRGB.o: pnglibconf.h
227contrib/tools/pngfix.o: pnglibconf.h
228
229# We must use -DPNG_NO_USE_READ_MACROS here even when the library may actually
230# be built with PNG_USE_READ_MACROS; this prevents the read macros from
231# interfering with the symbol file format.
232SYMBOL_CFLAGS = -DPNGLIB_LIBNAME='PNG@PNGLIB_MAJOR@@PNGLIB_MINOR@_0'\
233 -DPNGLIB_VERSION='@PNGLIB_VERSION@'\
234 -DSYMBOL_PREFIX='$(SYMBOL_PREFIX)'\
235 -DPNG_NO_USE_READ_MACROS -DPNG_BUILDING_SYMBOL_TABLE
236
237if DO_PNG_PREFIX
238SYMBOL_CFLAGS += -DPNG_PREFIX='@PNG_PREFIX@'
239endif
240
241.c.out:
242 rm -f $@ $*.tf[12]
243 test -d scripts || mkdir scripts || test -d scripts
244 $(DFNCPP) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES)\
245 $(CPPFLAGS) $(SYMBOL_CFLAGS) $< > $*.tf1
246 $(AWK) -f "${srcdir}/scripts/dfn.awk" out="$*.tf2" $*.tf1 1>&2
247 rm -f $*.tf1
248 mv $*.tf2 $@
249
250# The .c file for pnglibconf.h is machine generated
251pnglibconf.c: scripts/pnglibconf.dfa scripts/options.awk pngconf.h pngusr.dfa $(DFA_XTRA)
252 rm -f $@ $*.tf[45]
253 $(AWK) -f ${srcdir}/scripts/options.awk out=$*.tf4 version=search\
254 ${srcdir}/pngconf.h ${srcdir}/scripts/pnglibconf.dfa\
255 ${srcdir}/pngusr.dfa $(DFA_XTRA) 1>&2
256 $(AWK) -f ${srcdir}/scripts/options.awk out=$*.tf5 $*.tf4 1>&2
257 rm $*.tf4
258 mv $*.tf5 $@
259
260# Symbol checks (.def and .out files should match)
261scripts/symbols.chk: scripts/checksym.awk scripts/symbols.def scripts/symbols.out
262
263.out.chk:
264 rm -f $@ $*.new
265 $(AWK) -f ${srcdir}/scripts/checksym.awk ${srcdir}/scripts/${*F}.def\
266 of="$*.new" $< >&2
267 mv $*.new $@
268
269# used on demand to regenerate the standard header, CPPFLAGS should
270# be empty - no non-standard defines
271scripts/pnglibconf.c: scripts/pnglibconf.dfa scripts/options.awk pngconf.h
272 rm -f $@ pnglibconf.tf[67]
273 test -z "$(CPPFLAGS)"
274 echo "com @PNGLIB_VERSION@ STANDARD API DEFINITION" |\
275 $(AWK) -f ${srcdir}/scripts/options.awk out=pnglibconf.tf6\
276 logunsupported=1 version=search ${srcdir}/pngconf.h -\
277 ${srcdir}/scripts/pnglibconf.dfa 1>&2
278 $(AWK) -f ${srcdir}/scripts/options.awk out=pnglibconf.tf7\
279 pnglibconf.tf6 1>&2
280 rm pnglibconf.tf6
281 mv pnglibconf.tf7 $@
282
283$(libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_OBJECTS): png.h pngconf.h \
284 pnglibconf.h pngpriv.h pngdebug.h pnginfo.h pngstruct.h pngprefix.h
285
286test: check-am
287
288# Extra checks
289check: scripts/symbols.chk
290
291# Don't distribute the generated script files
292dist-hook:
293 cd '$(top_distdir)'; rm -f $(SCRIPT_CLEANFILES)
294
295# Make links between installed files with release-specific names and the generic
296# file names. If this install rule is run the generic names will be deleted and
297# recreated - this has obvious issues for systems with multiple installations.
298
299install-header-links:
300 @set -ex; cd '$(DESTDIR)$(includedir)'; for f in $(HEADERS); do \
301 rm -f "$$f"; $(LN_S) "$(PNGLIB_BASENAME)/$$f" "$$f"; done
302
303uninstall-header-links:
304 cd '$(DESTDIR)$(includedir)'; rm -f $(HEADERS)
305
306install-libpng-pc:
307 @set -ex; cd '$(DESTDIR)$(pkgconfigdir)'; rm -f libpng.pc; \
308 $(LN_S) '$(PNGLIB_BASENAME).pc' libpng.pc
309
310uninstall-libpng-pc:
311 rm -f '$(DESTDIR)$(pkgconfigdir)/libpng.pc'
312
313# EXT_LIST is a list of the possibly library directory extensions, this exists
314# because we can't find a good way of discovering the file extensions that are
315# actually installed on a given system, so instead we check for every extension
316# we have seen.
317
318EXT_LIST = a dll.a so so.@PNGLIB_MAJOR@@PNGLIB_MINOR@.@PNGLIB_RELEASE@ la sl dylib
319
320install-library-links:
321 @set -x; cd '$(DESTDIR)$(libdir)';\
322 for ext in $(EXT_LIST); do\
323 rm -f "libpng.$$ext";\
324 if test -f "$(PNGLIB_BASENAME).$$ext"; then\
325 $(LN_S) "$(PNGLIB_BASENAME).$$ext" "libpng.$$ext" || exit 1;\
326 fi;\
327 done
328
329uninstall-library-links:
330 @set -x; cd '$(DESTDIR)$(libdir)'; for ext in $(EXT_LIST); do\
331 rm -f "libpng.$$ext"; done
332
333install-libpng-config:
334 @set -ex; cd '$(DESTDIR)$(bindir)'; rm -f libpng-config; \
335 $(LN_S) '$(PNGLIB_BASENAME)-config' libpng-config
336
337uninstall-libpng-config:
338 rm -f '$(DESTDIR)$(bindir)/libpng-config'
339
340if DO_INSTALL_LINKS
341# If --enable-unversioned-links is specified the header and lib file links
342# will be automatically made on a 'make install':
343
344install-data-hook: install-header-links
345uninstall-hook: uninstall-header-links
346install-exec-hook: install-library-links
347uninstall-hook: uninstall-library-links
348endif
349
350if DO_INSTALL_LIBPNG_PC
351# Likewise, --install-pc causes libpng.pc to be constructed:
352
353install-data-hook: install-libpng-pc
354uninstall-hook: uninstall-libpng-pc
355endif
356
357if DO_INSTALL_LIBPNG_CONFIG
358# And --install-config:
359
360install-exec-hook: install-libpng-config
361uninstall-hook: uninstall-libpng-config
362endif
363
364# The following addition ensures that 'make all' always builds the test programs
365# too. It used to, but some change either in libpng or configure stopped this
366# working.
367all-am: $(check_PROGRAMS)