SoftHSMv2/m4/acx_botan_gnump.m4

   1 AC_DEFUN([ACX_BOTAN_GNUMP],[
   2         tmp_CPPFLAGS=$CPPFLAGS
   3         tmp_LIBS=$LIBS
   4
   5         CPPFLAGS="$CPPFLAGS $BOTAN_CFLAGS"
   6         LIBS="$LIBS $BOTAN_LIBS"
   7
   8         AC_LANG_PUSH([C++])
   9         AC_LINK_IFELSE(
  10                 [AC_LANG_PROGRAM(
  11                         [#include <botan/build.h>],
  12                         [#ifndef BOTAN_HAS_ENGINE_GNU_MP
  13                         #error "No GNU MP support";
  14                         #endif])],
  15                 [AC_MSG_RESULT([checking for Botan GNU MP support... yes])],
  16                 [AC_MSG_RESULT([checking for Botan GNU MP support... no])
  17                  AC_MSG_WARN([
  18 ====================================================
  19 Botan has not been built with GNU MP (--with-gnump).
  20 This will give negative impact on the performance.
  21 ====================================================])]
  22         )
  23         AC_LANG_POP([C++])
  24
  25         CPPFLAGS=$tmp_CPPFLAGS
  26         LIBS=$tmp_LIBS
  27 ])