bce7988230
FLOATING_POINT options were switched off, png.h ended up with lone ';'
characters. This is not valid ANSI-C outside a function. The ';'
characters have been moved inside the definition of PNG_FP_EXPORT and
PNG_FIXED_EXPORT. 2) If either option was switched off, the declaration
of the corresponding functions were completely omitted, even though some
of them are still used internally. The result is still valid, but
produces warnings from gcc with some warning options (including -Wall). The
fix is to cause png.h to declare the functions with PNG_INTERNAL_FUNCTION
when png.h is included from pngpriv.h.
60 lines
2.1 KiB
Makefile
Executable File
60 lines
2.1 KiB
Makefile
Executable File
#!/usr/bin/make -f
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# pnglibconf.mak - standard make lines for pnglibconf.h
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#
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# These lines are copied from Makefile.am, they illustrate
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# how to automate the build of pnglibconf.h from scripts/pnglibconf.dfa
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# given 'awk' and 'sed'
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# Override as appropriate, these definitions can be overridden on
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# the make command line (AWK='nawk' for example).
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AWK = gawk
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AWK = mawk
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AWK = nawk
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AWK = one-true-awk
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AWK = awk # Crashes on SunOS 5.10 - use 'nawk'
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CPP = $(CC) -E # Does not work on SUN OS 5.10 - use /lib/cpp
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SED = sed
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COPY = cp
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DELETE = rm -f
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ECHO = echo
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DFA_XTRA = # Put your configuration file here, see scripts/pnglibconf.dfa. Eg:
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# DFA_XTRA = pngusr.dfa
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# CPPFLAGS should contain the options to control the result,
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# but DEFS and CFLAGS are also supported here, override
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# as appropriate
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DFNFLAGS = $(DEFS) $(CPPFLAGS) $(CFLAGS)
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# srcdir is a defacto standard for the location of the source
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srcdir = .
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# The standard pnglibconf.h exists as scripts/pnglibconf.h.prebuilt,
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# copy this if the following doesn't work.
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pnglibconf.h: pnglibconf.dfn
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$(DELETE) $@ dfn.c dfn1.out dfn2.out dfn3.out
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$(ECHO) '#include "pnglibconf.dfn"' >dfn.c
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$(CPP) $(DFNFLAGS) dfn.c >dfn1.out
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$(ECHO) "If 'cpp -e' crashes try /lib/cpp (e.g. CPP='/lib/cpp')" >&2
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$(SED) -n -e 's|^.*PNG_DEFN_MAGIC *-\(.*\)- *PNG_DEFN_END.*$$|\1|p'\
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dfn1.out >dfn2.out
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$(SED) -e 's| *PNG_JOIN *||g' -e 's| *$$||' dfn2.out >dfn3.out
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$(COPY) dfn3.out $@
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$(DELETE) dfn.c dfn1.out dfn2.out dfn3.out
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pnglibconf.dfn: $(srcdir)/scripts/pnglibconf.dfa $(srcdir)/scripts/options.awk $(srcdir)/pngconf.h $(DFA_XTRA)
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$(DELETE) $@ dfn1.out dfn2.out
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$(ECHO) "Calling $(AWK) from scripts/pnglibconf.mak" >&2
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$(ECHO) "If 'awk' crashes try a better awk (e.g. AWK='nawk')" >&2
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$(AWK) -f $(srcdir)/scripts/options.awk out=dfn1.out version=search\
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$(srcdir)/pngconf.h $(srcdir)/scripts/pnglibconf.dfa\
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$(DFA_XTRA) 1>&2
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$(AWK) -f $(srcdir)/scripts/options.awk out=dfn2.out dfn1.out 1>&2
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$(COPY) dfn2.out $@
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$(DELETE) dfn1.out dfn2.out
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clean-pnglibconf:
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$(DELETE) pnglibconf.h pnglibconf.dfn dfn.c dfn1.out dfn2.out dfn3.out
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clean: clean-pnglibconf
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