ctdb/lib/talloc/libtalloc.m4

   1 dnl Check to see if we should use the included talloc
   2
   3 INCLUDED_TALLOC=auto
   4 AC_ARG_WITH(included-talloc,
   5     [AC_HELP_STRING([--with-included-talloc], [use bundled talloc library, not from system])],
   6     [ INCLUDED_TALLOC=$withval ])
   7
   8 AC_SUBST(TALLOC_LIBS)
   9 AC_SUBST(TALLOC_CFLAGS)
  10
  11 if test x"$INCLUDED_TALLOC" != x"yes" ; then
  12     AC_CHECK_HEADERS(talloc.h)
  13     AC_CHECK_LIB(talloc, talloc_init, [ TALLOC_LIBS="-ltalloc" ])
  14     if test x"$ac_cv_header_talloc_h" = x"no" -o x"$ac_cv_lib_talloc_talloc_init" = x"no" ; then
  15         INCLUDED_TALLOC=yes
  16         TALLOC_CFLAGS=""
  17     else
  18         INCLUDED_TALLOC=no
  19     fi
  20 fi
  21
  22 AC_MSG_CHECKING(whether to use included talloc)
  23 AC_MSG_RESULT($INCLUDED_TALLOC)
  24 if test x"$INCLUDED_TALLOC" != x"no" ; then
  25     dnl find the talloc sources. This is meant to work both for
  26     dnl talloc standalone builds, and builds of packages using talloc
  27     tallocdir=""
  28     tallocpaths=". lib/talloc talloc ../talloc ../lib/talloc"
  29     for d in $tallocpaths; do
  30         if test -f "$srcdir/$d/talloc.c"; then
  31                 tallocdir="$d"
  32                 AC_SUBST(tallocdir)
  33                 break
  34         fi
  35     done
  36     if test x"$tallocdir" = "x"; then
  37         AC_MSG_ERROR([cannot find talloc source in $tallocpaths])
  38     fi
  39     TALLOC_OBJ="talloc.o"
  40     AC_SUBST(TALLOC_OBJ)
  41
  42     TALLOC_CFLAGS="-I$srcdir/$tallocdir"
  43     AC_SUBST(TALLOC_CFLAGS)
  44
  45     TALLOC_LIBS=""
  46     AC_SUBST(TALLOC_LIBS)
  47 fi
  48
  49 AC_CHECK_SIZEOF(size_t,cross)
  50 AC_CHECK_SIZEOF(void *,cross)
  51
  52 if test $ac_cv_sizeof_size_t -lt $ac_cv_sizeof_void_p; then
  53         AC_WARN([size_t cannot represent the amount of used memory of a process])
  54         AC_WARN([please report this to <samba-technical@samba.org>])
  55         AC_WARN([sizeof(size_t) = $ac_cv_sizeof_size_t])
  56         AC_WARN([sizeof(void *) = $ac_cv_sizeof_void_p])
  57         AC_ERROR([sizeof(size_t) < sizeof(void *)])
  58 fi
  59
  60 if test x"$VERSIONSCRIPT" != "x"; then
  61     EXPORTSFILE=talloc.exports
  62     AC_SUBST(EXPORTSFILE)
  63 fi