Makefile

   1 # GNU Makefile for gnulib central.
   2 # Copyright (C) 2006, 2009-2012 Free Software Foundation, Inc.
   3 #
   4 # Copying and distribution of this file, with or without modification,
   5 # in any medium, are permitted without royalty provided the copyright
   6 # notice and this notice are preserved.
   7
   8 # This Makefile requires the use of GNU make.  Some targets require
   9 # that you have tools like git, makeinfo and cppi installed.
  10
  11 # Required for the use of <(...) below.
  12 SHELL=/bin/bash
  13
  14 # Produce some files that are not stored in the repository.
  15 all:
  16
  17 # Produce the documentation in readable form.
  18 info html dvi pdf:
  19         cd doc && $(MAKE) $@ && $(MAKE) mostlyclean
  20
  21 # Collect the names of rules starting with 'sc_'.
  22 syntax-check-rules := $(sort $(shell sed -n 's/^\(sc_[a-zA-Z0-9_-]*\):.*/\1/p'\
  23                         Makefile))
  24
  25 # Perform some platform independent checks on the gnulib code.
  26 check: $(syntax-check-rules)
  27
  28 sc_prefer_ac_check_funcs_once:
  29         if test -d .git; then                                           \
  30           git grep -w -l AC_CHECK_FUNCS modules                         \
  31             && { echo use AC_CHECK_FUNCS_ONCE, not AC_CHECK_FUNCS       \
  32                    in modules/ 1>&2; exit 1; } || :                     \
  33         else :; fi
  34
  35 sc_prohibit_leading_TABs:
  36         if test -d .git; then                                           \
  37           git grep -l '^ *      ' lib m4 tests                          \
  38             | grep -Ev '^lib/reg|Makefile|test-update-copyright'        \
  39             | grep .                                                    \
  40             && { printf '*** %s\n' 'indent with spaces, not TABs;'      \
  41                  1>&2; exit 1; } || :                                   \
  42         else :; fi
  43
  44 sc_prohibit_augmenting_PATH_via_TESTS_ENVIRONMENT:
  45         if test -d .git; then                                           \
  46           url=http://thread.gmane.org/gmane.comp.lib.gnulib.bugs/22874; \
  47           git grep '^[   ]*TESTS_ENVIRONMENT += PATH=' modules          \
  48             && { printf '%s\n' 'Do not augment PATH via TESTS_ENVIRONMENT;' \
  49                  "  see <$$url>" 1>&2; exit 1; } || :                   \
  50         else :; fi
  51
  52 # Run all maint.mk syntax-check tests on gnulib's sources.
  53 sc_maint:
  54         rm -f maint.mk; ln -s top/maint.mk maint.mk
  55         $(MAKE) -s srcdir=. gnulib_dir=. _build-aux=build-aux \
  56             -f cfg.mk -f maint.mk syntax-check
  57         rm -f maint.mk
  58
  59 # Files in m4/ that (exceptionally) may use AC_LIBOBJ.
  60 # Do not include their ".m4" suffix.
  61 allow_AC_LIBOBJ =       \
  62   close                 \
  63   dprintf               \
  64   dup2                  \
  65   faccessat             \
  66   fchdir                \
  67   fclose                \
  68   fcntl                 \
  69   fprintf-posix         \
  70   open                  \
  71   printf-posix-rpl      \
  72   snprintf              \
  73   sprintf-posix         \
  74   stdio_h               \
  75   vasnprintf            \
  76   vasprintf             \
  77   vdprintf              \
  78   vfprintf-posix        \
  79   vprintf-posix         \
  80   vsnprintf             \
  81   vsprintf-posix
  82
  83 allow_AC_LIBOBJ_or := $(shell echo $(allow_AC_LIBOBJ) | tr -s ' ' '|')
  84
  85 sc_prohibit_AC_LIBOBJ_in_m4:
  86         url=http://article.gmane.org/gmane.comp.lib.gnulib.bugs/26995;  \
  87         if test -d .git; then                                           \
  88           git ls-files m4                                               \
  89              | grep -Ev '^m4/($(allow_AC_LIBOBJ_or))\.m4$$'             \
  90              | xargs grep '^ *AC_LIBOBJ('                               \
  91             && { printf '%s\n' 'Do not use AC_LIBOBJ in m4/*.m4;'       \
  92                  "see <$$url>"; exit 1; } || :;                         \
  93         else :; fi
  94
  95 sc_pragma_columns:
  96         if test -d .git; then                                           \
  97           git ls-files|grep '\.in\.h$$'                                 \
  98               | xargs grep -l '^@PRAGMA_SYSTEM_HEADER@'                 \
  99               | xargs grep -L '^@PRAGMA_COLUMNS@'                       \
 100               | grep .                                                  \
 101             && { printf '%s\n'                                          \
 102                    'the files listed above use @PRAGMA_SYSTEM_HEADER@'  \
 103                    'without also using @PRAGMA_COLUMNS@' 1>&2;          \
 104                  exit 1; } || :;                                        \
 105         else :; fi
 106
 107 # Verify that certain (for now, only Jim Meyering and Eric Blake's)
 108 # *.c files are consistently cpp indented.
 109 sc_cpp_indent_check:
 110         ./gnulib-tool --extract-filelist \
 111             $$(cd ./modules; grep -ilrE '(meyering|blake)' .) \
 112           | sort -u \
 113           | grep '\.c$$' \
 114           | grep -vE '/(stdio-(read|write)|getloadavg)\.c$$' \
 115           | xargs cppi -c
 116
 117 # Ensure that the list of symbols checked for by the
 118 # sc_prohibit_intprops_without_use rule match those in the actual file.
 119 # Extract the symbols from the .h file and compare with the list of
 120 # symbols extracted from the rule in maint.mk.
 121 sc_check_sym_list:
 122         i=lib/intprops.h; \
 123         diff -u <(perl -lne '/^# *define ([A-Z]\w+)\(/ and print $$1' $$i|fmt) \
 124           <(sed -n /^_intprops_name/,/^_intprops_syms_re/p top/maint.mk \
 125             |sed '/^_/d;s/^  //;s/      *\\$$//')
 126
 127 # Ensure that the copyright statements in files and in the module descriptions
 128 # are consistent.
 129 sc_check_copyright:
 130         ./check-copyright
 131
 132 # Regenerate some files that are stored in the repository.
 133 regen: MODULES.html
 134
 135 # MODULES.html is periodically being generated and copied to the web pages at
 136 # :ext:USER@cvs.savannah.gnu.org:/web/gnulib/gnulib/
 137 # where it then appears at <http://www.gnu.org/software/gnulib/MODULES.html>.
 138 MODULES.html: MODULES.html.sh
 139         ./MODULES.html.sh > MODULES.html
 140
 141 # Run this rule once per year (usually early in January)
 142 # to update all FSF copyright year lists here.
 143 # We exclude the files listed in srclist.txt (maintained elsewhere)
 144 # as well as those in tests/unictype (generated).
 145 # Also exclude any file that includes the "GENERATED AUTOMATICALLY" comment,
 146 # being careful not to exclude code that merely generates the comment.
 147 # Also exclude doc/INSTALL*, since they too are generated.
 148 update-copyright:
 149         exempt=$$(mktemp);                                              \
 150         grep -v '^#' config/srclist.txt|grep -v '^$$'                   \
 151           | while read src dst; do                                      \
 152               test -f "$$dst" && { echo "$$dst"; continue; };           \
 153               test -d "$$dst" || continue;                              \
 154               echo "$$dst"/$$(basename "$$src");                        \
 155             done > $$exempt;                                            \
 156         git ls-files tests/unictype >> $$exempt;                        \
 157         git ls-files doc/INSTALL* >> $$exempt;                          \
 158         git ls-files | grep -vFf $$exempt                               \
 159           | xargs grep -L '^/\*.*GENERATED AUTOMATICALLY'               \
 160           | UPDATE_COPYRIGHT_MAX_LINE_LENGTH=79                         \
 161             UPDATE_COPYRIGHT_USE_INTERVALS=1                            \
 162               xargs build-aux/update-copyright