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authorWladimir J. van der Laan <laanwj@gmail.com>2016-01-16 10:49:40 +0100
committerWladimir J. van der Laan <laanwj@gmail.com>2016-01-16 10:49:46 +0100
commitfd9356ba4eb5b3053caf506c750ec4cecb761b6d (patch)
tree11f1790c116ab655e2204f52f317c783ae1ea167
parente1060c56cca7eeab8e217eb7b416c16487fd175e (diff)
parentc0cf48d1ac5b661aa1dfbcd284c773f8f5bbe806 (diff)
Merge pull request #7322
c0cf48d c++11: add scoped enum fallbacks to CPPFLAGS rather than defining them locally (Cory Fields)
-rw-r--r--configure.ac13
-rw-r--r--src/wallet/walletdb.cpp5
2 files changed, 12 insertions, 6 deletions
diff --git a/configure.ac b/configure.ac
index 07f9a4a6f3..347016064c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -619,6 +619,17 @@ if test x$use_boost = xyes; then
BOOST_LIBS="$BOOST_LDFLAGS $BOOST_SYSTEM_LIB $BOOST_FILESYSTEM_LIB $BOOST_PROGRAM_OPTIONS_LIB $BOOST_THREAD_LIB $BOOST_CHRONO_LIB"
+
+dnl If boost (prior to 1.57) was built without c++11, it emulated scoped enums
+dnl using c++98 constructs. Unfortunately, this implementation detail leaked into
+dnl the abi. This was fixed in 1.57.
+
+dnl When building against that installed version using c++11, the headers pick up
+dnl on the native c++11 scoped enum support and enable it, however it will fail to
+dnl link. This can be worked around by disabling c++11 scoped enums if linking will
+dnl fail.
+dnl BOOST_NO_SCOPED_ENUMS was changed to BOOST_NO_CXX11_SCOPED_ENUMS in 1.51.
+
TEMP_LIBS="$LIBS"
LIBS="$BOOST_LIBS $LIBS"
TEMP_CPPFLAGS="$CPPFLAGS"
@@ -640,7 +651,7 @@ AC_LINK_IFELSE([AC_LANG_PROGRAM([[
choke;
#endif
]])],
- [AC_MSG_RESULT(mismatched); AC_DEFINE(FORCE_BOOST_EMULATED_SCOPED_ENUMS, 1, [Define this symbol if boost scoped enums are emulated])], [AC_MSG_RESULT(ok)])
+ [AC_MSG_RESULT(mismatched); BOOST_CPPFLAGS="$BOOST_CPPFLAGS -DBOOST_NO_SCOPED_ENUMS -DBOOST_NO_CXX11_SCOPED_ENUMS"], [AC_MSG_RESULT(ok)])
LIBS="$TEMP_LIBS"
CPPFLAGS="$TEMP_CPPFLAGS"
diff --git a/src/wallet/walletdb.cpp b/src/wallet/walletdb.cpp
index 5266946ca0..67511976df 100644
--- a/src/wallet/walletdb.cpp
+++ b/src/wallet/walletdb.cpp
@@ -15,11 +15,6 @@
#include "utiltime.h"
#include "wallet/wallet.h"
-#if defined(FORCE_BOOST_EMULATED_SCOPED_ENUMS)
-#define BOOST_NO_SCOPED_ENUMS
-#define BOOST_NO_CXX11_SCOPED_ENUMS
-#endif
-
#include <boost/version.hpp>
#include <boost/filesystem.hpp>
#include <boost/foreach.hpp>