| Chris Craik | ca2bf81 | 2013-07-29 15:28:30 -0700 | [diff] [blame] | 1 | #!/usr/bin/make -f |
| 2 | # pnglibconf.mak - standard make lines for pnglibconf.h |
| 3 | # |
| 4 | # These lines are copied from Makefile.am, they illustrate |
| 5 | # how to automate the build of pnglibconf.h from scripts/pnglibconf.dfa |
| 6 | # given just 'awk', a C preprocessor and standard command line utilities |
| 7 | |
| 8 | # Override as appropriate, these definitions can be overridden on |
| 9 | # the make command line (AWK='nawk' for example). |
| 10 | AWK = gawk |
| 11 | AWK = mawk |
| 12 | AWK = nawk |
| 13 | AWK = one-true-awk |
| 14 | AWK = awk # Crashes on SunOS 5.10 - use 'nawk' |
| 15 | CPP = $(CC) -E # On SUN OS 5.10 if this causes problems use /lib/cpp |
| 16 | |
| 17 | MOVE = mv |
| 18 | DELETE = rm -f |
| 19 | ECHO = echo |
| 20 | DFA_XTRA = # Put your configuration file here, see scripts/pnglibconf.dfa. Eg: |
| 21 | # DFA_XTRA = pngusr.dfa |
| 22 | |
| 23 | # CPPFLAGS should contain the options to control the result, |
| 24 | # but DEFS and CFLAGS are also supported here, override |
| 25 | # as appropriate |
| 26 | DFNFLAGS = $(DEFS) $(CPPFLAGS) $(CFLAGS) |
| 27 | |
| 28 | # srcdir is a defacto standard for the location of the source |
| 29 | srcdir = . |
| 30 | |
| 31 | # The standard pnglibconf.h exists as scripts/pnglibconf.h.prebuilt, |
| 32 | # copy this if the following doesn't work. |
| 33 | pnglibconf.h: pnglibconf.dfn |
| 34 | $(DELETE) $@ pnglibconf.c pnglibconf.out pnglibconf.tmp |
| 35 | $(ECHO) '#include "pnglibconf.dfn"' >pnglibconf.c |
| 36 | $(ECHO) "If '$(CC) -E' crashes try /lib/cpp (e.g. CPP='/lib/cpp')" >&2 |
| 37 | $(CPP) $(DFNFLAGS) pnglibconf.c >pnglibconf.out |
| 38 | $(AWK) -f "$(srcdir)/scripts/dfn.awk" out="pnglibconf.tmp" pnglibconf.out 1>&2 |
| 39 | $(MOVE) pnglibconf.tmp $@ |
| 40 | |
| 41 | pnglibconf.dfn: $(srcdir)/scripts/pnglibconf.dfa $(srcdir)/scripts/options.awk $(srcdir)/pngconf.h $(srcdir)/pngusr.dfa $(DFA_XTRA) |
| 42 | $(DELETE) $@ pnglibconf.pre pnglibconf.tmp |
| 43 | $(ECHO) "Calling $(AWK) from scripts/pnglibconf.mak" >&2 |
| 44 | $(ECHO) "If 'awk' crashes try a better awk (e.g. AWK='nawk')" >&2 |
| 45 | $(AWK) -f $(srcdir)/scripts/options.awk out="pnglibconf.pre"\ |
| 46 | version=search $(srcdir)/pngconf.h $(srcdir)/scripts/pnglibconf.dfa\ |
| 47 | $(srcdir)/pngusr.dfa $(DFA_XTRA) 1>&2 |
| 48 | $(AWK) -f $(srcdir)/scripts/options.awk out="pnglibconf.tmp" pnglibconf.pre 1>&2 |
| 49 | $(MOVE) pnglibconf.tmp $@ |
| 50 | |
| 51 | clean-pnglibconf: |
| Matt Sarett | 9ea7569 | 2016-01-08 13:00:42 -0500 | [diff] [blame] | 52 | $(DELETE) pnglibconf.h pnglibconf.c pnglibconf.out pnglibconf.pre \ |
| 53 | pnglibconf.dfn |
| Chris Craik | ca2bf81 | 2013-07-29 15:28:30 -0700 | [diff] [blame] | 54 | |
| 55 | clean: clean-pnglibconf |