src/Makefile.am

   1 ## Process this file with automake to produce Makefile.in -*-Makefile-*-
   2
   3 bin_PROGRAMS = cppi
   4 cppi_SOURCES = \
   5   cppi.l \
   6   system.h
   7
   8 AM_CFLAGS = $(WARN_CFLAGS) $(WERROR_CFLAGS)
   9
  10 # Tell the linker to omit references to unused shared libraries.
  11 AM_LDFLAGS = $(IGNORE_UNUSED_LIBRARIES_CFLAGS)
  12
  13 EXTRA_DIST = cpp.gp cpp-indent.pl cppi.l cpp-cond.c
  14 MAINTAINERCLEANFILES = cpp-cond.c
  15 CLEANFILES = cpp.h lex.backup
  16
  17 GPERF = gperf
  18
  19 AM_CPPFLAGS = -I$(top_srcdir)/lib
  20
  21 LDADD = ../lib/libcppi.a $(LIBINTL) ../lib/libcppi.a
  22
  23 GPERF_OPTIONS = \
  24   -C -N cpp_cond_lookup -n -t -s 6 -k '*' --language=ANSI-C
  25
  26 cpp-cond.c: cpp.gp
  27         $(AM_V_GEN)rm -f $@ $@-tmp
  28         $(AM_V_at)$(GPERF) $(GPERF_OPTIONS) $< \
  29           | perl -ne '/__GNUC_STDC_INLINE__/ and print "static\n"; print' \
  30           > $@-tmp
  31         $(AM_V_at)chmod a-w $@-tmp
  32         $(AM_V_at)mv $@-tmp $@
  33
  34 localedir = $(datadir)/locale
  35 BUILT_SOURCES = localedir.h
  36 DISTCLEANFILES = localedir.h
  37 localedir.h: Makefile
  38         $(AM_V_GEN)rm -f $@-t
  39         $(AM_V_at)echo '#define LOCALEDIR "$(localedir)"' >$@-t
  40         $(AM_V_at)chmod a-w $@-t
  41         $(AM_V_at)cmp $@-t $@ > /dev/null 2>&1 && rm -f $@-t \
  42           || { rm -f $@; mv $@-t $@; }
  43
  44 # flex_debug = #-d
  45 flex_debug = # -L # suppress #line directives
  46
  47 # This is required to avoid an infloop on certain 8-bit inputs.
  48 # Without this option, the generated scanner would infloop on e.g.,
  49 #   perl -e 'print "\300"' |./cppi
  50 flex_8_bit = -8
  51
  52 flex_optimize = -Cfr -p -b
  53 AM_LFLAGS = $(flex_debug) $(flex_optimize) $(flex_8_bit)
  54
  55 # Don't use automake's default .l.c rule.
  56 # I prefer to make generated .c files unwritable.
  57 cppi.c: cppi.l
  58         $(AM_V_GEN)rm -f $@
  59         $(AM_V_at)$(LEXCOMPILE) $(srcdir)/cppi.l
  60         $(AM_V_at)chmod a-w $(LEX_OUTPUT_ROOT).c
  61         $(AM_V_at)mv $(LEX_OUTPUT_ROOT).c $@
  62
  63 cpp.h: cpp.gp Makefile.am
  64         $(AM_V_GEN)rm -f $@-tmp $@
  65         $(AM_V_at)(                                                     \
  66          echo '/* This file is generated automatically from cpp.gp.  */'; \
  67          echo;                                                          \
  68          echo 'enum Eic_type';                                          \
  69          echo '{';                                                      \
  70          sed -n '/.*, /{s///;s/.*/  &,/;p;};' $(srcdir)/cpp.gp;         \
  71          echo '  EIC_OTHER';                                            \
  72          echo '};';                                                     \
  73          echo;                                                          \
  74          echo 'static char const *const directive[] =';                 \
  75          echo '{';                                                      \
  76          sed -n '/,.*/{s///;s/.*/  "&",/;p;};' $(srcdir)/cpp.gp;        \
  77          echo '  ""';                                                   \
  78          echo '};';                                                     \
  79         )                                                               \
  80           > $@-tmp
  81         $(AM_V_at)chmod -w $@-tmp
  82         $(AM_V_at)mv $@-tmp $@
  83
  84 # This is required because we have broken inter-directory dependencies:
  85 # in order to generate all man pages, require that cppi be built at
  86 # distribution time.
  87 dist-hook: cppi
  88 .PHONY: dist-hook
  89
  90 BUILT_SOURCES += cpp-cond.c cpp.h
  91
  92 # The following rule is not designed to be portable,
  93 # and relies on tools that not everyone has.
  94
  95 # Most functions in src/*.c should have static scope.
  96 # Any that don't must be marked with `extern', but `main'
  97 # and `usage' are exceptions.  They're always extern, but
  98 # don't need to be marked.
  99 #
 100 # The second nm|grep checks for file-scope variables with `extern' scope.
 101 sc_tight_scope: $(all_programs)
 102         @t=exceptions-$$$$;                                             \
 103         trap "s=$$?; rm -f $$t; exit $$s" 0 1 2 13 15;                  \
 104         ( printf '^main$$\n^usage$$\n^cpp_cond_lookup$$\n^yy\n';        \
 105           grep -h -A1 '^extern .*[^;]$$' $(SOURCES)                     \
 106             | grep -vE '^(extern |--)' |sed 's/^/^/;s/ .*/$$/' ) > $$t; \
 107         nm -e *.$(OBJEXT)                                               \
 108             | sed -n 's/.* T //p'                                       \
 109             | grep -Ev -f $$t &&                                        \
 110           { echo 'the above functions should have static scope' 1>&2;   \
 111             exit 1; } || : ;                                            \
 112         ( printf '^program_name$$\n^yy\n';                                      \
 113           test x"$(noinst_HEADERS)" = x ||                              \
 114           sed -n 's/^extern int \([^ ][^ ]*\);$$/^\1$$/p'               \
 115             $(noinst_HEADERS) ) > $$t;                                  \
 116         nm -e *.$(OBJEXT)                                               \
 117             | sed -n 's/.* [BD] //p'                                    \
 118             | grep -Ev -f $$t &&                                        \
 119           { echo 'the above variables should have static scope' 1>&2;   \
 120             exit 1; } || :