m4/pdns_with_libsodium.m4

   1 AC_DEFUN([PDNS_WITH_LIBSODIUM], [
   2   AC_MSG_CHECKING([whether we will be linking in libsodium])
   3   AC_ARG_WITH([libsodium],
   4     AS_HELP_STRING([--with-libsodium],[use libsodium @<:@default=auto@:>@]),
   5     [with_libsodium=$withval],
   6     [with_libsodium=auto],
   7   )
   8   AC_MSG_RESULT([$with_libsodium])
   9
  10   AS_IF([test "x$with_libsodium" != "xno"], [
  11     AS_IF([test "x$with_libsodium" = "xyes" -o "x$with_libsodium" = "xauto"], [
  12       PKG_CHECK_MODULES([LIBSODIUM], [libsodium], [
  13         AC_DEFINE([HAVE_LIBSODIUM], [1], [Define to 1 if you have libsodium])
  14         save_CFLAGS=$CFLAGS
  15         save_LIBS=$LIBS
  16         CFLAGS="$LIBSODIUM_CFLAGS $CFLAGS"
  17         LIBS="$LIBSODIUM_LIBS $LIBS"
  18         AC_CHECK_FUNCS([crypto_box_easy_afternm crypto_box_curve25519xchacha20poly1305_easy randombytes_stir sodium_memcmp crypto_shorthash])
  19         CFLAGS=$save_CFLAGS
  20         LIBS=$save_LIBS
  21       ], [ : ])
  22     ])
  23   ])
  24   AM_CONDITIONAL([LIBSODIUM], [test "x$LIBSODIUM_LIBS" != "x"])
  25   AS_IF([test "x$with_libsodium" = "xyes"], [
  26     AS_IF([test x"$LIBSODIUM_LIBS" = "x"], [
  27       AC_MSG_ERROR([libsodium requested but libraries were not found])
  28     ])
  29   ])
  30 ])