1# Makefile.am, the source file for Makefile.in (and hence Makefile), is 2# 3# Copyright (c) 2004-2016 Glenn Randers-Pehrson 4# Last changed in libpng 1.6.25 [September 1, 2016] 5# 6# This code is released under the libpng license. 7# For conditions of distribution and use, see the disclaimer 8# and license in png.h 9 10PNGLIB_BASENAME= libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@ 11 12ACLOCAL_AMFLAGS = -I scripts 13 14# test programs - run on make check, make distcheck 15check_PROGRAMS= pngtest pngunknown pngstest pngvalid pngimage pngcp 16if HAVE_CLOCK_GETTIME 17check_PROGRAMS += timepng 18endif 19 20# Utilities - installed 21bin_PROGRAMS= pngfix png-fix-itxt 22 23# This ensures that pnglibconf.h gets built at the start of 'make all' or 24# 'make check', but it does not add dependencies to the individual programs, 25# this is done below. 26# 27# IMPORTANT: always add the object modules of new programs to the list below 28# because otherwise the sequence 'configure; make new-program' will *sometimes* 29# result in the installed (system) pnglibconf.h being used and the result is 30# always wrong and always very confusing. 31BUILT_SOURCES = pnglibconf.h 32 33pngtest_SOURCES = pngtest.c 34pngtest_LDADD = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la 35 36pngvalid_SOURCES = contrib/libtests/pngvalid.c 37pngvalid_LDADD = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la 38 39pngstest_SOURCES = contrib/libtests/pngstest.c 40pngstest_LDADD = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la 41 42pngunknown_SOURCES = contrib/libtests/pngunknown.c 43pngunknown_LDADD = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la 44 45pngimage_SOURCES = contrib/libtests/pngimage.c 46pngimage_LDADD = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la 47 48timepng_SOURCES = contrib/libtests/timepng.c 49timepng_LDADD = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la 50 51pngfix_SOURCES = contrib/tools/pngfix.c 52pngfix_LDADD = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la 53 54png_fix_itxt_SOURCES = contrib/tools/png-fix-itxt.c 55 56pngcp_SOURCES = contrib/tools/pngcp.c 57pngcp_LDADD = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la 58 59# Generally these are single line shell scripts to run a test with a particular 60# set of parameters: 61TESTS =\ 62 tests/pngtest\ 63 tests/pngtest-badpngs\ 64 tests/pngvalid-gamma-16-to-8 tests/pngvalid-gamma-alpha-mode\ 65 tests/pngvalid-gamma-background tests/pngvalid-gamma-expand16-alpha-mode\ 66 tests/pngvalid-gamma-expand16-background\ 67 tests/pngvalid-gamma-expand16-transform tests/pngvalid-gamma-sbit\ 68 tests/pngvalid-gamma-threshold tests/pngvalid-gamma-transform\ 69 tests/pngvalid-progressive-size\ 70 tests/pngvalid-progressive-interlace-standard\ 71 tests/pngvalid-transform\ 72 tests/pngvalid-progressive-standard tests/pngvalid-standard\ 73 tests/pngstest-1.8 tests/pngstest-1.8-alpha tests/pngstest-linear\ 74 tests/pngstest-linear-alpha tests/pngstest-none tests/pngstest-none-alpha\ 75 tests/pngstest-sRGB tests/pngstest-sRGB-alpha tests/pngunknown-IDAT\ 76 tests/pngunknown-discard tests/pngunknown-if-safe tests/pngunknown-sAPI\ 77 tests/pngunknown-sTER tests/pngunknown-save tests/pngunknown-vpAg\ 78 tests/pngimage-quick tests/pngimage-full 79 80# man pages 81dist_man_MANS= libpng.3 libpngpf.3 png.5 82 83# generate the -config scripts if required 84binconfigs= libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@-config 85EXTRA_SCRIPTS= libpng-config libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@-config 86bin_SCRIPTS= @binconfigs@ 87 88# rules to build libpng, only build the old library on request 89lib_LTLIBRARIES=libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la 90# EXTRA_LTLIBRARIES= libpng.la 91libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_SOURCES = png.c pngerror.c\ 92 pngget.c pngmem.c pngpread.c pngread.c pngrio.c pngrtran.c pngrutil.c\ 93 pngset.c pngtrans.c pngwio.c pngwrite.c pngwtran.c pngwutil.c\ 94 png.h pngconf.h pngdebug.h pnginfo.h pngpriv.h pngstruct.h pngusr.dfa 95 96if PNG_ARM_NEON 97libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_SOURCES += arm/arm_init.c\ 98 arm/filter_neon.S arm/filter_neon_intrinsics.c 99endif 100 101if PNG_MIPS_MSA 102libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_SOURCES += mips/mips_init.c\ 103 mips/filter_msa_intrinsics.c 104endif 105 106if PNG_INTEL_SSE 107libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_SOURCES += intel/intel_init.c\ 108 intel/filter_sse2_intrinsics.c 109endif 110 111if PNG_POWERPC_VSX 112libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_SOURCES += powerpc/powerpc_init.c\ 113 powerpc/filter_vsx_intrinsics.c 114endif 115 116nodist_libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_SOURCES = pnglibconf.h 117 118libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_LDFLAGS = -no-undefined -export-dynamic \ 119 -version-number @PNGLIB_MAJOR@@PNGLIB_MINOR@:@PNGLIB_RELEASE@:0 120 121if HAVE_LD_VERSION_SCRIPT 122# Versioned symbols and restricted exports 123if HAVE_SOLARIS_LD 124 libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_LDFLAGS += -Wl,-M -Wl,libpng.vers 125else 126 libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_LDFLAGS += -Wl,--version-script=libpng.vers 127endif 128 129 libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_DEPENDENCIES = libpng.vers 130else 131# Only restricted exports when possible 132 libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_LDFLAGS += -export-symbols libpng.sym 133 libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_DEPENDENCIES = libpng.sym 134endif 135 136#distribute headers in /usr/include/libpng/* 137pkgincludedir= $(includedir)/$(PNGLIB_BASENAME) 138pkginclude_HEADERS= png.h pngconf.h 139nodist_pkginclude_HEADERS= pnglibconf.h 140 141# pkg-config stuff, note that libpng.pc is always required in order 142# to get the correct library 143pkgconfigdir = @pkgconfigdir@ 144pkgconfig_DATA = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.pc 145 146# Extra source distribution files, '${srcdir}' is used below to stop build files 147# from those directories being included. This only works if the configure is 148# not done in the source directory! 149EXTRA_DIST= \ 150 ANNOUNCE CHANGES INSTALL LICENSE README TODO \ 151 pngtest.png pngbar.png pngnow.png pngbar.jpg autogen.sh \ 152 ${srcdir}/contrib ${srcdir}/projects ${srcdir}/scripts \ 153 $(TESTS) $(XFAIL_TESTS) tests/pngstest \ 154 CMakeLists.txt example.c libpng-manual.txt 155 156SCRIPT_CLEANFILES=scripts/*.out scripts/*.chk 157 158CLEANFILES= *.tf? pngout.png libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.pc \ 159 libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@-config libpng.vers libpng.sym \ 160 check.new pnglibconf.h pngprefix.h symbols.new pngtest-log.txt \ 161 pnglibconf.out pnglibconf.c pnglibconf.pre pnglibconf.dfn \ 162 $(SCRIPT_CLEANFILES) 163 164MAINTAINERCLEANFILES = Makefile.in aclocal.m4 config.guess config.h.in \ 165config.sub configure depcomp install-sh ltmain.sh missing 166 167# PNG_COPTS give extra options for the C compiler to be used on all compilation 168# steps (unless targe_CFLAGS is specified; that will take precedence over 169# AM_CFLAGS) 170PNG_COPTS = @PNG_COPTS@ 171AM_CFLAGS = ${PNG_COPTS} 172 173# DFNCPP is normally just CPP - the C preprocessor - but on Solaris and maybe 174# other operating systems (NeXT?) the C preprocessor selected by configure 175# checks input tokens for validity - effectively it performs part of the ANSI-C 176# parsing - and therefore fails with the .df files. configure.ac has special 177# checks for this and sets DFNCPP appropriately. 178DFNCPP = @DFNCPP@ 179 180SUFFIXES = .chk .out 181 182$(PNGLIB_BASENAME).pc: libpng.pc 183 cp libpng.pc $@ 184 185$(PNGLIB_BASENAME)-config: libpng-config 186 cp libpng-config $@ 187 188scripts/sym.out scripts/vers.out: png.h pngconf.h pnglibconf.h 189scripts/prefix.out: png.h pngconf.h pnglibconf.out 190scripts/symbols.out: png.h pngconf.h $(srcdir)/scripts/pnglibconf.h.prebuilt 191scripts/intprefix.out: pnglibconf.h 192 193libpng.sym: scripts/sym.out 194 rm -f $@ 195 cp $? $@ 196libpng.vers: scripts/vers.out 197 rm -f $@ 198 cp $? $@ 199 200if DO_PNG_PREFIX 201# Rename functions in scripts/prefix.out with a PNG_PREFIX prefix. 202# Rename macros in scripts/macro.lst from PNG_PREFIXpng_ to PNG_ (the actual 203# implementation of the macro). 204pnglibconf.h: pnglibconf.out scripts/prefix.out scripts/macro.lst 205 rm -f $@ 206 $(AWK) 's==0 && NR>1{print prev}\ 207 s==0{prev=$$0}\ 208 s==1{print "#define", $$1, "@PNG_PREFIX@" $$1}\ 209 s==2{print "#define @PNG_PREFIX@png_" $$1, "PNG_" $$1}\ 210 END{print prev}' s=0 pnglibconf.out s=1 scripts/prefix.out\ 211 s=2 ${srcdir}/scripts/macro.lst >pnglibconf.tf8 212 mv pnglibconf.tf8 $@ 213 214pngprefix.h: scripts/intprefix.out 215 rm -f pngprefix.tf1 216 $(AWK) '{print "#define", $$1, "@PNG_PREFIX@" $$1}' $? >pngprefix.tf1 217 mv pngprefix.tf1 $@ 218else 219pnglibconf.h: pnglibconf.out 220 rm -f $@ 221 cp $? $@ 222 223pngprefix.h: # is empty 224 :>$@ 225endif 226 227$(srcdir)/scripts/pnglibconf.h.prebuilt: 228 @echo "Attempting to build $@" >&2 229 @echo "This is a machine generated file, but if you want to make" >&2 230 @echo "a new one simply make 'scripts/pnglibconf.out', copy that" >&2 231 @echo "AND set PNG_ZLIB_VERNUM to 0 (you MUST do this)" >&2 232 @exit 1 233 234# The following is necessary to ensure that the local pnglibconf.h is used, not 235# an installed one (this can happen immediately after on a clean system if 236# 'make test' is the first thing the user does.) Only files which include 237# one of the png source files (typically png.h or pngpriv.h) need to be listed 238# here: 239pngtest.o: pnglibconf.h 240 241contrib/libtests/makepng.o: pnglibconf.h 242contrib/libtests/pngstest.o: pnglibconf.h 243contrib/libtests/pngunknown.o: pnglibconf.h 244contrib/libtests/pngimage.o: pnglibconf.h 245contrib/libtests/pngvalid.o: pnglibconf.h 246contrib/libtests/readpng.o: pnglibconf.h 247contrib/libtests/tarith.o: pnglibconf.h 248contrib/libtests/timepng.o: pnglibconf.h 249 250contrib/tools/makesRGB.o: pnglibconf.h 251contrib/tools/pngfix.o: pnglibconf.h 252contrib/tools/pngcp.o: pnglibconf.h 253 254# We must use -DPNG_NO_USE_READ_MACROS here even when the library may actually 255# be built with PNG_USE_READ_MACROS; this prevents the read macros from 256# interfering with the symbol file format. 257SYMBOL_CFLAGS = -DPNGLIB_LIBNAME='PNG@PNGLIB_MAJOR@@PNGLIB_MINOR@_0'\ 258 -DPNGLIB_VERSION='@PNGLIB_VERSION@'\ 259 -DSYMBOL_PREFIX='$(SYMBOL_PREFIX)'\ 260 -DPNG_NO_USE_READ_MACROS -DPNG_BUILDING_SYMBOL_TABLE 261 262if DO_PNG_PREFIX 263SYMBOL_CFLAGS += -DPNG_PREFIX='@PNG_PREFIX@' 264endif 265 266.c.out: 267 rm -f $@ $*.tf[12] 268 test -d scripts || mkdir scripts || test -d scripts 269 $(DFNCPP) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES)\ 270 $(CPPFLAGS) $(SYMBOL_CFLAGS) $< > $*.tf1 271 $(AWK) -f "${srcdir}/scripts/dfn.awk" out="$*.tf2" $*.tf1 1>&2 272 rm -f $*.tf1 273 mv $*.tf2 $@ 274 275# The .c file for pnglibconf.h is machine generated 276pnglibconf.c: scripts/pnglibconf.dfa scripts/options.awk pngconf.h pngusr.dfa $(DFA_XTRA) 277 rm -f $@ $*.tf[45] 278 $(AWK) -f ${srcdir}/scripts/options.awk out=$*.tf4 version=search\ 279 ${srcdir}/pngconf.h ${srcdir}/scripts/pnglibconf.dfa\ 280 ${srcdir}/pngusr.dfa $(DFA_XTRA) 1>&2 281 $(AWK) -f ${srcdir}/scripts/options.awk out=$*.tf5 $*.tf4 1>&2 282 rm $*.tf4 283 mv $*.tf5 $@ 284 285# Symbol checks (.def and .out files should match) 286scripts/symbols.chk: scripts/checksym.awk scripts/symbols.def scripts/symbols.out 287 288.out.chk: 289 rm -f $@ $*.new 290 $(AWK) -f ${srcdir}/scripts/checksym.awk ${srcdir}/scripts/${*F}.def\ 291 of="$*.new" $< >&2 292 mv $*.new $@ 293 294# used on demand to regenerate the standard header, CPPFLAGS should 295# be empty - no non-standard defines 296scripts/pnglibconf.c: scripts/pnglibconf.dfa scripts/options.awk pngconf.h 297 rm -f $@ pnglibconf.tf[67] 298 test -z "$(CPPFLAGS)" 299 echo "com @PNGLIB_VERSION@ STANDARD API DEFINITION" |\ 300 $(AWK) -f ${srcdir}/scripts/options.awk out=pnglibconf.tf6\ 301 logunsupported=1 version=search ${srcdir}/pngconf.h -\ 302 ${srcdir}/scripts/pnglibconf.dfa 1>&2 303 $(AWK) -f ${srcdir}/scripts/options.awk out=pnglibconf.tf7\ 304 pnglibconf.tf6 1>&2 305 rm pnglibconf.tf6 306 mv pnglibconf.tf7 $@ 307 308$(libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_OBJECTS): png.h pngconf.h \ 309 pnglibconf.h pngpriv.h pngdebug.h pnginfo.h pngstruct.h pngprefix.h 310 311test: check-am 312 313# Extra checks 314check: scripts/symbols.chk 315 316# Don't distribute the generated script files 317dist-hook: 318 cd '$(top_distdir)'; rm -f $(SCRIPT_CLEANFILES) 319 320# Make links between installed files with release-specific names and the generic 321# file names. If this install rule is run the generic names will be deleted and 322# recreated - this has obvious issues for systems with multiple installations. 323 324install-header-links: 325 @set -ex; cd '$(DESTDIR)$(includedir)'; for f in $(HEADERS); do \ 326 rm -f "$$f"; $(LN_S) "$(PNGLIB_BASENAME)/$$f" "$$f"; done 327 328uninstall-header-links: 329 cd '$(DESTDIR)$(includedir)'; rm -f $(HEADERS) 330 331install-libpng-pc: 332 @set -ex; cd '$(DESTDIR)$(pkgconfigdir)'; rm -f libpng.pc; \ 333 $(LN_S) '$(PNGLIB_BASENAME).pc' libpng.pc 334 335uninstall-libpng-pc: 336 rm -f '$(DESTDIR)$(pkgconfigdir)/libpng.pc' 337 338# EXT_LIST is a list of the possibly library directory extensions, this exists 339# because we can't find a good way of discovering the file extensions that are 340# actually installed on a given system, so instead we check for every extension 341# we have seen. 342 343EXT_LIST = a dll.a so so.@PNGLIB_MAJOR@@PNGLIB_MINOR@.@PNGLIB_RELEASE@ la sl dylib 344 345install-library-links: 346 @set -x; cd '$(DESTDIR)$(libdir)';\ 347 for ext in $(EXT_LIST); do\ 348 rm -f "libpng.$$ext";\ 349 if test -f "$(PNGLIB_BASENAME).$$ext"; then\ 350 $(LN_S) "$(PNGLIB_BASENAME).$$ext" "libpng.$$ext" || exit 1;\ 351 fi;\ 352 done 353 354uninstall-library-links: 355 @set -x; cd '$(DESTDIR)$(libdir)'; for ext in $(EXT_LIST); do\ 356 rm -f "libpng.$$ext"; done 357 358install-libpng-config: 359 @set -ex; cd '$(DESTDIR)$(bindir)'; rm -f libpng-config; \ 360 $(LN_S) '$(PNGLIB_BASENAME)-config' libpng-config 361 362uninstall-libpng-config: 363 rm -f '$(DESTDIR)$(bindir)/libpng-config' 364 365if DO_INSTALL_LINKS 366# If --enable-unversioned-links is specified the header and lib file links 367# will be automatically made on a 'make install': 368 369install-data-hook: install-header-links 370uninstall-hook: uninstall-header-links 371install-exec-hook: install-library-links 372uninstall-hook: uninstall-library-links 373endif 374 375if DO_INSTALL_LIBPNG_PC 376# Likewise, --install-pc causes libpng.pc to be constructed: 377 378install-data-hook: install-libpng-pc 379uninstall-hook: uninstall-libpng-pc 380endif 381 382if DO_INSTALL_LIBPNG_CONFIG 383# And --install-config: 384 385install-exec-hook: install-libpng-config 386uninstall-hook: uninstall-libpng-config 387endif 388 389# The following addition ensures that 'make all' always builds the test programs 390# too. It used to, but some change either in libpng or configure stopped this 391# working. 392all-am: $(check_PROGRAMS) 393
