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Viewing changes to m4/stl_hash.m4

  • Committer: Monty Taylor
  • Date: 2009-09-14 16:38:57 UTC
  • mto: (1193.1.1 use-hash-map)
  • mto: This revision was merged to the branch mainline in revision 1203.
  • Revision ID: mordred@inaugust.com-20090914163857-55ytb0w3ra9vi32l
Updated stl_hash to not bother checking boost and to check for unordered_map.

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m4/stl_hash.m4
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  [AC_MSG_CHECKING(the location of hash_map)
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   AC_LANG_PUSH(C++)
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   ac_cv_cxx_hash_map=""
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   for location in ext/hash_map boost/hash_map hash_map; do
 
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   for location in "" "ext/" "tr1/" ; do
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     for namespace in __gnu_cxx "" std stdext; do
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       if test -z "$ac_cv_cxx_hash_map"; then
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         AC_COMPILE_IFELSE(
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           [AC_LANG_PROGRAM(
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             [[#include <$location>]],
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             [[${namespace}::hash_map<int, int> t]])],
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           [ac_cv_cxx_hash_map="<$location>";
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           ac_cv_cxx_hash_namespace="$namespace";])
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       fi
 
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       for classprefix in unordered hash; do
 
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         if test -z "$ac_cv_cxx_hash_map"; then
 
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           AC_COMPILE_IFELSE(
 
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             [AC_LANG_PROGRAM([[#include <${location}${classprefix}_map>]],
 
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                           [[${namespace}::${classprefix}_map<int, int> t]])],
 
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             [ac_cv_cxx_hash_map="<${location}${classprefix}_map>";
 
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              ac_cv_cxx_hash_set="<${location}${classprefix}_set>";
 
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              ac_cv_cxx_hash_namespace="$namespace";
 
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              ac_cv_cxx_hash_map_class="${classprefix}_map";
 
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              ac_cv_cxx_hash_set_class="${classprefix}_set"])
 
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         fi
 
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       done
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     done
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   done
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   AC_LANG_POP()
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   ac_cv_cxx_hash_set=`echo "$ac_cv_cxx_hash_map" | sed s/map/set/`;
 
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   if test -n "$ac_cv_cxx_hash_map"; then
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      AC_DEFINE(HAVE_HASH_MAP, 1, [define if the compiler has hash_map])
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      AC_DEFINE(HAVE_HASH_SET, 1, [define if the compiler has hash_set])
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                         [the location of <hash_set>])
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      AC_DEFINE_UNQUOTED(HASH_NAMESPACE,$ac_cv_cxx_hash_namespace,
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                         [the namespace of hash_map/hash_set])
 
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      AC_DEFINE_UNQUOTED(HASH_MAP_CLASS,$ac_cv_cxx_hash_map_class,
 
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                         [the classname of hash_map])
 
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      AC_DEFINE_UNQUOTED(HASH_SET_CLASS,$ac_cv_cxx_hash_set_class,
 
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                         [the classname of hash_set])
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      AC_MSG_RESULT([$ac_cv_cxx_hash_map])
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   else
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      AC_MSG_RESULT()
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      AC_MSG_WARN([could not find an STL hash_map])
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   fi
 
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   AC_CACHE_CHECK(
 
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     [whether to redefine hash<string>],
 
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     [ac_cv_redefine_hash_string],
 
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     [AC_COMPILE_IFELSE(
 
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       [AC_LANG_PROGRAM([[
 
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#include HASH_SET_H
 
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#include <string>
 
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using namespace HASH_NAMESPACE;
 
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using namespace std;
 
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          ]],[[
 
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string teststr("test");
 
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HASH_SET_CLASS<string> test_hash;
 
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HASH_SET_CLASS<string>::iterator iter= test_hash.find(teststr);
 
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if (iter != test_hash.end())
 
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  return 1;
 
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          ]])],
 
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       [ac_cv_redefine_hash_string=no],
 
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       [ac_cv_redefine_hash_string=yes])])
 
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   AS_IF([test $ac_cv_redefine_hash_string = yes],[
 
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      AC_DEFINE(REDEFINE_HASH_STRING, 1, [if hash<string> needs to be defined])
 
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   ])
 
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   AC_LANG_POP()
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])