dnl Process this file with autoconf to produce a configure script.

AC_INIT(libtdata, m4_esyscmd([tr -d '\n' < VERSION]))

AC_CONFIG_HEADERS([config.h])

AM_INIT_AUTOMAKE([1.11])

AM_SILENT_RULES([yes])

AC_PROG_CC

LT_INIT

# Checks for pointer size.
# TODO: Later this is irrelevant, and we should just bail on 32-bit platforms always
AC_CHECK_SIZEOF([uintptr_t])
if test "x$ac_cv_sizeof_uintptr_t" == "x"; then
  AC_ERROR([Cannot determine size of uintptr_t])
fi
AC_SUBST(ac_cv_sizeof_uintptr_t)

if test "${ac_cv_sizeof_uintptr_t}" = "4"; then
   AC_DEFINE([BUILD_HOST_32BIT], 1, [Define to 1 if host is 32bit])
fi

dnl  **************************************
dnl ***** tests for compiler built-ins *****
dnl  **************************************

AC_CACHE_CHECK(
  [for __sync_bool_compare_and_swap_8],
  [ctrie_cv_func___sync_bool_compare_and_swap_8],
  [AC_LINK_IFELSE([AC_LANG_SOURCE([
    typedef unsigned int uint64  __attribute__ ((mode (DI)));
    uint64 i;
    int main() { return __sync_bool_compare_and_swap (&i, 0, 1); }
  ])],
  [ctrie_cv_func___sync_bool_compare_and_swap_8=yes],
  [ctrie_cv_func___sync_bool_compare_and_swap_8=no])])
  
if test "$ctrie_cv_func___sync_bool_compare_and_swap_8" = "yes"; then
  AC_DEFINE([HAVE__SYNC_BOOL_COMPARE_AND_SWAP_8], 1,
    [Define to 1 if the compiler provides the __sync_bool_compare_and_swap function for uint64])
fi

dnl  *****************
dnl ***** options *****
dnl  *****************

AC_ARG_ENABLE([build_examples],
    AS_HELP_STRING([--enable-build-examples], [Enable examples build]))

AS_IF([test "x$enable_build_examples" = "xyes"], [
  AC_DEFINE([BUILD_EXAMPLES], 1, [build of examples enabled])
])

AC_OUTPUT([
Makefile
lib/libtdata.pc
lib/Makefile
include/Makefile])