acinclude.m4

   1 #
   2 # Copyright (c) 1998 Etienne Bernard
   3 # Copyright (c) 2002 Clinton Ebadi
   4 #
   5
   6 # Check if we have a decent C++ compiler
   7 # that supports Standard Template Library (STL)
   8 AC_DEFUN([AC_CPP_STL],
   9 [
  10   AC_MSG_CHECKING([for STL support])
  11
  12   AC_CACHE_VAL(ac_cv_cpp_stl,
  13   [
  14     AC_LANG_CPLUSPLUS
  15     cat > conftest.$ac_ext <<EOF
  16     #include <list>
  17     int main() {
  18       std::list<int> l;
  19       return 0;
  20     };
  21 EOF
  22
  23
  24     if AC_TRY_EVAL(ac_link) && test -s conftest; then
  25       ac_cv_cpp_stl="have_stl=yes"
  26     else
  27       ac_cv_cpp_stl="have_stl=no"
  28     fi
  29     rm -f conftest*
  30   ])dnl
  31   eval "$ac_cv_cpp_stl"
  32
  33   AC_MSG_RESULT([$have_stl])
  34
  35   if test "$have_stl" != "yes"; then
  36     AC_MSG_ERROR([Sorry, you need STL support with your compiler])
  37   fi
  38 ])
  39
  40
  41 # Check is compiler has ios_base
  42 AC_DEFUN([AC_CPP_STL_IOSBASE],
  43 [
  44   AC_MSG_CHECKING([for std::ios_base in iostreams])
  45
  46   AC_CACHE_VAL(ac_cv_cpp_iosbase,
  47   [
  48     AC_LANG_CPLUSPLUS
  49     cat > conftest.$ac_ext <<EOF
  50     #include <iostream>
  51     #include <fstream>
  52     int main() {
  53       std::ifstream file ("README", std::ios_base::in);
  54       return 0;
  55     };
  56 EOF
  57
  58     if AC_TRY_EVAL(ac_link) && test -s conftest; then
  59       ac_cv_cpp_iosbase="have_iosbase=yes"
  60     else
  61       ac_cv_cpp_iosbase="have_iosbase=no"
  62     fi
  63     rm -f conftest*
  64   ])dnl
  65   eval "$ac_cv_cpp_iosbase"
  66
  67   AC_MSG_RESULT([$have_iosbase])
  68
  69   if test "$have_iosbase" = "yes"; then
  70     HAVE_IOSBASE="-DHAVE_IOSBASE"
  71     AC_DEFINE(HAVE_IOSBASE,1, [std::ios_base])
  72   else
  73     AC_DEFINE(HAVE_IOSBASE,0)
  74   fi
  75 ])
  76
  77 # Check if STL elements support the clear() method
  78 AC_DEFUN([AC_CPP_STL_CLEAR],
  79 [
  80   AC_MSG_CHECKING([for clear() method in STL objects])
  81
  82   AC_CACHE_VAL(ac_cv_cpp_stl_clear,
  83   [
  84     AC_LANG_CPLUSPLUS
  85     cat > conftest.$ac_ext <<EOF
  86     #include <map>
  87     int main() {
  88       std::map<int, int, std::less<int> > m;
  89       m.clear();
  90       return 0;
  91     };
  92 EOF
  93
  94     if AC_TRY_EVAL(ac_link) && test -s conftest; then
  95       ac_cv_cpp_stl_clear="have_stl_clear=yes"
  96     else
  97       ac_cv_cpp_stl_clear="have_stl_clear=no"
  98     fi
  99     rm -f conftest*
 100   ])dnl
 101   eval "$ac_cv_cpp_stl_clear"
 102
 103   AC_MSG_RESULT([$have_stl_clear])
 104
 105   if test "$have_stl_clear" = "yes"; then
 106     HAVE_STL_CLEAR="-DHAVE_STL_CLEAR"
 107     AC_DEFINE(HAVE_STL_CLEAR,1, [STL Objects have a clear method])
 108   fi
 109 ])
 110
 111 include([guile.m4])