| #!/usr/bin/make -f |
| # pnglibconf.mak - standard make lines for pnglibconf.h |
| # |
| # These lines are copied from Makefile.am, they illustrate |
| # how to automate the build of pnglibconf.h from scripts/pnglibconf.dfa |
| # given just 'awk', a C preprocessor and standard command line utilities |
| |
| # Override as appropriate, these definitions can be overridden on |
| # the make command line (AWK='nawk' for example). |
| AWK = gawk |
| AWK = mawk |
| AWK = nawk |
| AWK = one-true-awk |
| AWK = awk # Crashes on SunOS 5.10 - use 'nawk' |
| CPP = $(CC) -E # On SUN OS 5.10 if this causes problems use /lib/cpp |
| |
| MOVE = mv |
| DELETE = rm -f |
| ECHO = echo |
| DFA_XTRA = # Put your configuration file here, see scripts/pnglibconf.dfa. Eg: |
| # DFA_XTRA = pngusr.dfa |
| |
| # CPPFLAGS should contain the options to control the result, |
| # but DEFS and CFLAGS are also supported here, override |
| # as appropriate |
| DFNFLAGS = $(DEFS) $(CPPFLAGS) $(CFLAGS) |
| |
| # srcdir is a defacto standard for the location of the source |
| srcdir = . |
| |
| # The standard pnglibconf.h exists as scripts/pnglibconf.h.prebuilt, |
| # copy this if the following doesn't work. |
| pnglibconf.h: pnglibconf.dfn |
| $(DELETE) $@ pnglibconf.c pnglibconf.out pnglibconf.tmp |
| $(ECHO) '#include "pnglibconf.dfn"' >pnglibconf.c |
| $(ECHO) "If '$(CC) -E' crashes try /lib/cpp (e.g. CPP='/lib/cpp')" >&2 |
| $(CPP) $(DFNFLAGS) pnglibconf.c >pnglibconf.out |
| $(AWK) -f "$(srcdir)/scripts/dfn.awk" out="pnglibconf.tmp" pnglibconf.out 1>&2 |
| $(MOVE) pnglibconf.tmp $@ |
| |
| pnglibconf.dfn: $(srcdir)/scripts/pnglibconf.dfa $(srcdir)/scripts/options.awk $(srcdir)/pngconf.h $(srcdir)/pngusr.dfa $(DFA_XTRA) |
| $(DELETE) $@ pnglibconf.pre pnglibconf.tmp |
| $(ECHO) "Calling $(AWK) from scripts/pnglibconf.mak" >&2 |
| $(ECHO) "If 'awk' crashes try a better awk (e.g. AWK='nawk')" >&2 |
| $(AWK) -f $(srcdir)/scripts/options.awk out="pnglibconf.pre"\ |
| version=search $(srcdir)/pngconf.h $(srcdir)/scripts/pnglibconf.dfa\ |
| $(srcdir)/pngusr.dfa $(DFA_XTRA) 1>&2 |
| $(AWK) -f $(srcdir)/scripts/options.awk out="pnglibconf.tmp" pnglibconf.pre 1>&2 |
| $(MOVE) pnglibconf.tmp $@ |
| |
| clean-pnglibconf: |
| $(DELETE) pnglibconf.* |
| |
| clean: clean-pnglibconf |