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481.1.9
by Monty Taylor
Added autoconf tests for location of cstdint and cinttypes. Use those in C++ programs now, so that we don't have to define _STDC_LIMIT_MACROS, etc by hand. Stop, in fact, defining those by hand. |
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# We check two things: where the include file is for hash_map, and |
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# what namespace hash_map lives in within that include file. We |
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942.1.1
by Monty Taylor
Started transitioning from AC_TRY_COMPILE to AC_COMPILE_IFELSE |
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# include AC_COMPILE_IFELSE for all the combinations we've seen in the |
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481.1.9
by Monty Taylor
Added autoconf tests for location of cstdint and cinttypes. Use those in C++ programs now, so that we don't have to define _STDC_LIMIT_MACROS, etc by hand. Stop, in fact, defining those by hand. |
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# wild. We define one of HAVE_HASH_MAP or HAVE_EXT_HASH_MAP depending
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# on location, and HASH_NAMESPACE to be the namespace hash_map is
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# defined in.
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#
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# Ideally we'd use AC_CACHE_CHECK, but that only lets us store one value |
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# at a time, and we need to store two (filename and namespace). |
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# prints messages itself, so we have to do the message-printing ourselves |
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# via AC_MSG_CHECKING + AC_MSG_RESULT. (TODO(csilvers): can we cache?) |
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AC_DEFUN([AC_CXX_STL_HASH], |
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[AC_MSG_CHECKING(the location of hash_map) |
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779.2.11
by Monty Taylor
General build cleanup - removed cruft, removed depreated checks. |
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AC_LANG_PUSH(C++)
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481.1.9
by Monty Taylor
Added autoconf tests for location of cstdint and cinttypes. Use those in C++ programs now, so that we don't have to define _STDC_LIMIT_MACROS, etc by hand. Stop, in fact, defining those by hand. |
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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 namespace in __gnu_cxx "" std stdext; do
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if test -z "$ac_cv_cxx_hash_map"; then
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942.1.1
by Monty Taylor
Started transitioning from AC_TRY_COMPILE to AC_COMPILE_IFELSE |
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AC_COMPILE_IFELSE(
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[AC_LANG_PROGRAM(
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[[#include <$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="$namespace";]) |
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481.1.9
by Monty Taylor
Added autoconf tests for location of cstdint and cinttypes. Use those in C++ programs now, so that we don't have to define _STDC_LIMIT_MACROS, etc by hand. Stop, in fact, defining those by hand. |
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fi |
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done |
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done |
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779.2.11
by Monty Taylor
General build cleanup - removed cruft, removed depreated checks. |
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AC_LANG_POP() |
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481.1.9
by Monty Taylor
Added autoconf tests for location of cstdint and cinttypes. Use those in C++ programs now, so that we don't have to define _STDC_LIMIT_MACROS, etc by hand. Stop, in fact, defining those by hand. |
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ac_cv_cxx_hash_set=`echo "$ac_cv_cxx_hash_map" | sed s/map/set/`; |
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if test -n "$ac_cv_cxx_hash_map"; then |
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AC_DEFINE(HAVE_HASH_MAP, 1, [define if the compiler has hash_map]) |
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AC_DEFINE(HAVE_HASH_SET, 1, [define if the compiler has hash_set]) |
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AC_DEFINE_UNQUOTED(HASH_MAP_H,$ac_cv_cxx_hash_map, |
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[the location of <hash_map>]) |
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AC_DEFINE_UNQUOTED(HASH_SET_H,$ac_cv_cxx_hash_set, |
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[the location of <hash_set>]) |
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AC_DEFINE_UNQUOTED(HASH_NAMESPACE,$ac_cv_cxx_hash_namespace, |
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[the namespace of hash_map/hash_set]) |
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AC_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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]) |