fixincludes/configure.ac

   1 AC_PREREQ(2.64)
   2
   3 AC_INIT(fixincludes, [ ])
   4 AC_CONFIG_SRCDIR(inclhack.def)
   5 AC_CONFIG_AUX_DIR(..)
   6 m4_sinclude(../libtool.m4)
   7 AC_CANONICAL_SYSTEM
   8 AC_PROG_CC
   9 AC_USE_SYSTEM_EXTENSIONS
  10 AC_PROG_SED
  11
  12 # Figure out what compiler warnings we can enable.
  13 # See config/warnings.m4 for details.
  14
  15 ACX_PROG_CC_WARNING_OPTS([-W -Wall -Wwrite-strings -Wstrict-prototypes \
  16                           -Wmissing-prototypes -Wold-style-definition \
  17                           -Wmissing-format-attribute -Wno-overlength-strings])
  18 ACX_PROG_CC_WARNING_ALMOST_PEDANTIC([-Wno-long-long])
  19
  20 # Only enable with --enable-werror-always until existing warnings are
  21 # corrected.
  22 ACX_PROG_CC_WARNINGS_ARE_ERRORS([manual])
  23
  24 # Determine the noncanonical target name, for directory use.
  25 ACX_NONCANONICAL_TARGET
  26
  27 # Specify the local prefix
  28 local_prefix=
  29 AC_ARG_WITH(local-prefix,
  30 [  --with-local-prefix=DIR specifies directory to put local include],
  31 [case "${withval}" in
  32 yes)    AC_MSG_ERROR(bad value ${withval} given for local include directory prefix) ;;
  33 no)     ;;
  34 *)      local_prefix=$with_local_prefix ;;
  35 esac])
  36
  37 # Default local prefix if it is empty
  38 if test x$local_prefix = x; then
  39         local_prefix=/usr/local
  40 fi
  41
  42 # Choose one or two-process fix methodology.  Systems that cannot handle
  43 # bi-directional pipes must use the two process method.
  44 #
  45 AC_ARG_ENABLE([twoprocess],
  46 [  --enable-twoprocess       Use a separate process to apply the fixes],
  47 [if test "x$enable_twoprocess" = xyes; then
  48         TARGET=twoprocess
  49 else
  50         TARGET=oneprocess
  51 fi],
  52 [case $host in
  53         i?86-*-msdosdjgpp* | \
  54         i?86-*-mingw32* | \
  55         x86_64-*-mingw32* | \
  56         *-*-beos* | \
  57         *-*-*vms*)
  58                 TARGET=twoprocess
  59                 ;;
  60
  61         * )
  62                 TARGET=oneprocess
  63                 ;;
  64 esac])
  65 AC_SUBST(TARGET)
  66
  67 if test $TARGET = twoprocess; then
  68         AC_DEFINE(SEPARATE_FIX_PROC, 1,
  69                   [Define if testing and fixing are done by separate process])
  70 fi
  71
  72 case $host in
  73         vax-dec-bsd* )
  74                 AC_DEFINE(exit, xexit, [Define to xexit if the host system does not support atexit])
  75                 AC_DEFINE(atexit, xatexit, [Define to xatexit if the host system does not support atexit])
  76                 ;;
  77 esac
  78
  79 AC_DEFINE_UNQUOTED([EXE_EXT], "$ac_exeext",
  80   [Defined to the executable file extension on the host system])
  81
  82 # Checks for header files.
  83 AC_HEADER_STDC
  84 AC_CHECK_HEADERS([stddef.h stdlib.h strings.h unistd.h fcntl.h sys/file.h \
  85         sys/stat.h])
  86 define(fixincludes_UNLOCKED_FUNCS, clearerr_unlocked feof_unlocked dnl
  87   ferror_unlocked fflush_unlocked fgetc_unlocked fgets_unlocked dnl
  88   fileno_unlocked fprintf_unlocked fputc_unlocked fputs_unlocked dnl
  89   fread_unlocked fwrite_unlocked getchar_unlocked getc_unlocked dnl
  90   putchar_unlocked putc_unlocked)
  91 AC_CHECK_FUNCS(fixincludes_UNLOCKED_FUNCS)
  92 AC_CHECK_DECLS([abort, asprintf, basename(char *), errno, vasprintf])
  93 AC_CHECK_DECLS(m4_split(m4_normalize(fixincludes_UNLOCKED_FUNCS)))
  94
  95 # Checks for typedefs, structures, and compiler characteristics.
  96 AC_C_CONST
  97
  98 # Checks for library functions.
  99 GCC_AC_FUNC_MMAP_BLACKLIST
 100
 101 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
 102 AC_ARG_ENABLE(maintainer-mode,
 103 [  --enable-maintainer-mode enable make rules and dependencies not useful
 104                           (and sometimes confusing) to the casual installer],
 105       USE_MAINTAINER_MODE=$enableval,
 106       USE_MAINTAINER_MODE=no)
 107 AC_MSG_RESULT($USE_MAINTAINER_MODE)
 108 if test "$USE_MAINTAINER_MODE" = yes; then
 109   MAINT=
 110 else
 111   MAINT='#'
 112 fi
 113 AC_SUBST(MAINT)
 114 AC_DEFINE_UNQUOTED([SED_PROGRAM], "${SED}",
 115    [Defined to the best working sed program on the host system])
 116
 117 # Determine what GCC version number to use in filesystem paths.
 118 GCC_BASE_VER
 119
 120 AC_CONFIG_HEADERS(config.h, [echo timestamp > stamp-h])
 121 AC_CONFIG_FILES(Makefile mkheaders.almost:mkheaders.in)
 122 AC_OUTPUT