31aee0d0c0
Fixed point APIs are now supported throughout (no missing APIs).
Internal fixed point arithmetic support exists for all internal floating
point operations.
sCAL validates the floating point strings it is passed.
Safe, albeit rudimentary, Watcom support is provided by PNG_API_RULE==2
Two new APIs exist to get the number of passes without turning on the
PNG_INTERLACE transform and to get the number of rows in the current
pass.
A new test program, pngvalid.c, validates the gamma code.
Errors in the 16 bit gamma correction (overflows) have been corrected.
cHRM chunk testing is done consistently (previously the floating point
API bypassed it, because the test really didn't work on FP, now the test
is performed on the actual values to be stored in the PNG file so it
works in the FP case too.)
Most floating point APIs now simply call the fixed point APIs after
converting the values to the fixed point form used in the PNG file.
The standard headers no longer include zlib.h, which is currently only
required for pngstruct.h and can therefore be internal.
(Patches by John Bowler)
196 lines
6.7 KiB
Makefile
196 lines
6.7 KiB
Makefile
# Makefile.am:
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# Source file for Makefile.in (and hence Makefile)
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#
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PNGLIB_BASENAME= libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@
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# libpng does not follow GNU file name conventions
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AUTOMAKE_OPTIONS = foreign color-tests
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# test programs - run on make check, make distcheck
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check_PROGRAMS= pngtest pngvalid
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pngtest_SOURCES = pngtest.c
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pngtest_LDADD = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la
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pngvalid_SOURCES = pngvalid.c
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pngvalid_LDADD = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la
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TESTS = test-pngtest.sh pngvalid
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TESTS_ENVIRONMENT= srcdir=$(srcdir)
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# man pages
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dist_man_MANS= libpng.3 libpngpf.3 png.5
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# generate the -config scripts if required
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binconfigs= libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@-config
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EXTRA_SCRIPTS= libpng-config libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@-config
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bin_SCRIPTS= @binconfigs@
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# rules to build libpng, only build the old library on request
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lib_LTLIBRARIES=libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la
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# EXTRA_LTLIBRARIES= libpng.la
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libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_SOURCES = png.c pngarith.c pngerror.c\
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pngget.c pngmem.c pngpread.c pngread.c pngrio.c pngrtran.c pngrutil.c\
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pngset.c pngtrans.c pngwio.c pngwrite.c pngwtran.c pngwutil.c\
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png.h pngconf.h pngdebug.h pnginfo.h pngpriv.h pngstruct.h
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nodist_libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_SOURCES = pnglibconf.h
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libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_CPPFLAGS = @LIBPNG_DEFINES@
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libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_LDFLAGS = -no-undefined -export-dynamic \
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-version-number @PNGLIB_MAJOR@@PNGLIB_MINOR@:@PNGLIB_RELEASE@:0
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if HAVE_LD_VERSION_SCRIPT
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# Versioned symbols and restricted exports
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libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_LDFLAGS += -Wl,--version-script=libpng.vers
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libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_DEPENDENCIES = libpng.vers
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else
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# Only restricted exports when possible
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libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_LDFLAGS += -export-symbols libpng.sym
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libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_DEPENDENCIES = libpng.sym
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endif
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#distribute headers in /usr/include/libpng/*
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pkgincludedir= $(includedir)/$(PNGLIB_BASENAME)
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pkginclude_HEADERS= png.h pngconf.h
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nodist_pkginclude_HEADERS= pnglibconf.h
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# pkg-config stuff, note that libpng.pc is always required in order
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# to get the correct library
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pkgconfigdir = @pkgconfigdir@
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pkgconfig_DATA = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.pc
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#extra source distribution files.
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EXTRA_DIST= \
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ANNOUNCE CHANGES INSTALL LICENSE README TODO \
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pngtest.png pngbar.png pngnow.png pngbar.jpg autogen.sh \
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${srcdir}/contrib ${srcdir}/projects ${srcdir}/scripts \
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$(TESTS) \
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CMakeLists.txt example.c libpng-@PNGLIB_VERSION@.txt
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SCRIPT_CLEANFILES=scripts/*.out scripts/*.chk scripts/pnglibconf.dfn
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CLEANFILES= dfn.c dfn?.out pngout.png libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.pc \
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libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@-config libpng.vers libpng.sym \
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pngwin.def check.new pnglibconf.* symbols.new \
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$(SCRIPT_CLEANFILES)
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MAINTAINERCLEANFILES = Makefile.in aclocal.m4 config.guess config.h.in \
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config.sub configure depcomp install-sh ltmain.sh missing
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SUFFIXES = .chk .dfn .out
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$(PNGLIB_BASENAME).pc: libpng.pc
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cp libpng.pc $@
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$(PNGLIB_BASENAME)-config: libpng-config
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cp libpng-config $@
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scripts/sym.out scripts/vers.out: png.h pngconf.h pnglibconf.h
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scripts/symbols.out scripts/pngwin.out: png.h pngconf.h scripts/pnglibconf.h
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libpng.sym: scripts/sym.out
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rm -f $@
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cp $? $@
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libpng.vers: scripts/vers.out
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rm -f $@
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cp $? $@
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pngwin.def: scripts/pngwin.out
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rm -f $@
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cp $? $@
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pnglibconf.h: pnglibconf.out
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rm -f $@
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cp $? $@
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scripts/pnglibconf.h:
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@echo "This is a machine generated file, but if you want to make" >&2
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@echo "a new one simply make 'scripts/pnglibconf.out' and copy that" >&2
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@exit 1
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SYMBOL_CFLAGS = -DPNGLIB_LIBNAME='PNG@PNGLIB_MAJOR@@PNGLIB_MINOR@_0'\
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-DPNGLIB_VERSION='@PNGLIB_VERSION@'\
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-DSYMBOL_PREFIX='$(SYMBOL_PREFIX)'
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.dfn.out:
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rm -f $@ dfn.c dfn?.out
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test -d scripts || mkdir scripts
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echo '#include "$<"' >dfn.c
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$(CPP) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) @LIBPNG_DEFINES@\
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$(CPPFLAGS) $(SYMBOL_CFLAGS) dfn.c >dfn1.out
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$(SED) -n -e 's|^.*PNG_DEFN_MAGIC-\(.*\)-PNG_DEFN_END.*$$|\1|p'\
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dfn1.out >dfn2.out
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$(SED) -e 's| *@@@ *||g' -e 's| *$$||' dfn2.out >dfn3.out
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rm -f dfn.c dfn[12].out
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mv dfn3.out $@
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# The .dfn file for pnglibconf.h is machine generated
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pnglibconf.dfn: scripts/pnglibconf.dfa scripts/options.awk
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rm -f $@ dfn?.out
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$(AWK) -f ${srcdir}/scripts/options.awk out=dfn1.out\
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${srcdir}/scripts/pnglibconf.dfa $(DFA_XTRA) 1>&2
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$(AWK) -f ${srcdir}/scripts/options.awk out=dfn2.out dfn1.out 1>&2
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rm dfn1.out
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mv dfn2.out $@
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# Symbol checks (.def and .out files should match)
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scripts/pngwin.chk: scripts/checksym.awk scripts/pngwin.def scripts/pngwin.out
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scripts/symbols.chk: scripts/checksym.awk scripts/symbols.def scripts/symbols.out
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.out.chk:
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rm -f $@ symbols.new
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$(AWK) -f ${srcdir}/scripts/checksym.awk ${srcdir}/scripts/${*F}.def\
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$< >&2
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mv symbols.new $@
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# used on demand to regenerate the standard header, CPPFLAGS should
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# be empty - no non-standard defines
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scripts/pnglibconf.dfn: scripts/pnglibconf.dfa scripts/options.awk
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rm -f $@ dfn?.out
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test -z "$(CPPFLAGS)"
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echo "com @PNGLIB_VERSION@ STANDARD API DEFINITION" |\
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$(AWK) -f ${srcdir}/scripts/options.awk out=dfn1.out\
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logunsupported=1 - ${srcdir}/scripts/pnglibconf.dfa 1>&2
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$(AWK) -f ${srcdir}/scripts/options.awk out=dfn2.out dfn1.out 1>&2
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rm dfn1.out
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mv dfn2.out $@
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$(libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_OBJECTS): png.h pngconf.h \
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pnglibconf.h pngpriv.h pngdebug.h pnginfo.h pngstruct.h
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test: check-am
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# Extra checks
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check: scripts/symbols.chk scripts/pngwin.chk
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# Don't distribute the generated script files
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dist-hook:
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cd '$(top_distdir)'; rm -f $(SCRIPT_CLEANFILES)
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# install the .../include headers as links to the new ones
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install-data-hook:
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cd $(DESTDIR)$(includedir); rm -f png.h pngconf.h pnglibconf.h
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cd $(DESTDIR)$(includedir); $(LN_S) $(PNGLIB_BASENAME)/png.h png.h
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cd $(DESTDIR)$(includedir); $(LN_S) $(PNGLIB_BASENAME)/pngconf.h \
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pngconf.h
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cd $(DESTDIR)$(includedir); $(LN_S) $(PNGLIB_BASENAME)/pnglibconf.h \
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pnglibconf.h
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cd $(DESTDIR)$(pkgconfigdir); rm -f libpng.pc
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cd $(DESTDIR)$(pkgconfigdir); $(LN_S) $(PNGLIB_BASENAME).pc libpng.pc
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# do evil things to libpng to cause libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@ to be used
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install-exec-hook:
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cd $(DESTDIR)$(bindir); rm -f libpng-config
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cd $(DESTDIR)$(bindir); $(LN_S) $(PNGLIB_BASENAME)-config libpng-config
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@set -x;\
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cd $(DESTDIR)$(libdir);\
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for ext in a la so so.@PNGLIB_MAJOR@@PNGLIB_MINOR@.@PNGLIB_RELEASE@ sl dylib; do\
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rm -f libpng.$$ext;\
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if test -f $(PNGLIB_BASENAME).$$ext; then\
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$(LN_S) $(PNGLIB_BASENAME).$$ext libpng.$$ext;\
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fi;\
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done
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uninstall-hook:
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cd $(DESTDIR)$(includedir); rm -f png.h pngconf.h pnglibconf.h
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rm -f $(DESTDIR)$(pkgconfigdir)/libpng.pc
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rm -f $(DESTDIR)$(bindir)/libpng-config
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rm -f $(DESTDIR)$(libdir)/libpng.a
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rm -f $(DESTDIR)$(libdir)/libpng.la
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