m4/ax_check_ntl.m4

   1 AC_DEFUN([AX_CHECK_NTL], [
   2         bv_no_ntl=false
   3         SAVE_CPPFLAGS="$CPPFLAGS"
   4         SAVE_LDFLAGS="$LDFLAGS"
   5         CPPFLAGS="$NTL_CPPFLAGS $CPPFLAGS"
   6         LDFLAGS="$NTL_LDFLAGS $LDFLAGS"
   7         AC_LANG_PUSH(C++)
   8         AC_CHECK_HEADER([NTL/ZZ.h],[],[bv_no_ntl=true])
   9         AC_EGREP_CPP(yes, [
  10                 #include <NTL/ZZ.h>
  11                 #ifdef NTL_GMP_LIP
  12                 yes
  13                 #endif
  14                 ],:,AC_MSG_ERROR(ntl not compiled with gmp support))
  15
  16         AC_TRY_COMPILE([
  17                 #include <NTL/ZZ.h>
  18                 using namespace NTL;
  19         ], [], [], [AC_MSG_ERROR(Upgrade NTL or configure with NTL_STD_CXX=on)])
  20         AC_LANG_POP
  21
  22         AC_CHECK_LIB(ntl, main,[],[bv_no_ntl=true])
  23         if test "$bv_no_ntl" = "true"; then
  24                 AC_MSG_ERROR(Need ntl)
  25         fi
  26         CPPFLAGS="$SAVE_CPPFLAGS"
  27         LDFLAGS="$SAVE_LDFLAGS"
  28 ])