src/examples/sample-plugin/configure.ac

   1 AC_INIT(vpp_plugins, 1.0)
   2 LT_INIT
   3 AM_INIT_AUTOMAKE
   4 AM_SILENT_RULES([yes])
   5 AC_PREFIX_DEFAULT([/usr])
   6
   7 AC_PROG_CC
   8
   9 # Check if compiler supports specific flag
  10 AC_DEFUN([CC_CHECK_FLAG],
  11 [
  12   AC_MSG_CHECKING([if $CC supports $1])
  13   AC_LANG_PUSH([C])
  14   ac_saved_cflags="$CFLAGS"
  15   CFLAGS="-Werror $1"
  16   AC_COMPILE_IFELSE([AC_LANG_PROGRAM([])],
  17   [cc_flag_check=yes],
  18   [cc_flag_check=no]
  19 )
  20   AC_MSG_RESULT([$cc_flag_check])
  21   CFLAGS="$ac_saved_cflags"
  22   AC_LANG_POP([C])
  23 ])
  24
  25 AC_DEFUN([ENABLE_ARG],
  26 [
  27   AC_ARG_ENABLE($1,
  28     AC_HELP_STRING(patsubst([--enable-$1],[_],[-]), $2),
  29     [enable_$1=yes n_enable_$1=1],
  30     [enable_$1=no n_enable_$1=0])
  31   AM_CONDITIONAL(m4_toupper(ENABLE_$1), test "$enable_$1" = "yes")
  32   m4_append([list_of_enabled], [$1], [, ])
  33 ])
  34
  35 ENABLE_ARG(dlmalloc,    [Enable dlmalloc])
  36 AC_SUBST(DLMALLOC,              [-DUSE_DLMALLOC=${n_enable_dlmalloc}])
  37
  38 CC_CHECK_FLAG("-Wno-address-of-packed-member")
  39 AS_IF([test "$cc_flag_check" = yes],
  40         [CFLAGS="${CFLAGS} -Wno-address-of-packed-member"], [])
  41
  42 AC_OUTPUT([Makefile])
  43
  44 AC_CONFIG_MACRO_DIR([m4])