Ah, no I didn't. Do you think I should recompile & reinstall with that enabled? Also, are you able to tell me where how the system libraries are compiled for Snow Leopard is documented, if they are? & thanks very much for your help, Doug. On 18 April 2011 14:20, Jonathan Wakely <jwakely.gcc@xxxxxxxxx> wrote: > On 17 April 2011 17:20, doug livesey wrote: >> Hi -- I've installed GCC 4.6.0 on my MacBook Pro (running Snow >> Leopard), and have compiled a simple hello world c++ program with it. >> Unfortunately, when I try to do something more complex using the Boost >> Serialization library, the code compiles and links, but I get the >> following error when I run it: >> run_features(2872) malloc: *** error for object 0x100502060: >> pointer being freed was not allocated >> *** set a breakpoint in malloc_error_break to debug >> >> This occurs when I try to create an xml archive with a stringstream. >> The code compiles fine under GCC 4.2, it's only with 4.6.0 that I get >> this error. I reinstalled Boost with GCC 4.6.0 (by fixing symlinks to >> cc, gcc, and g++ & using homebrew) to be sure that it wasn't something >> there. >> For reference, the error is caused by line 24 of this file: >> https://gist.github.com/923262 >> I'm just learning C++ & GCC development, so I'm a bit stumped, now, as >> to what I can do next -- could anyone advise me on how I might resolve >> this, or where I might look for information to help me? > > Is your program definitely using new libstdc++.so from the GCC 4.6.0 > you installed yourself, rather than the system's default libstdc++.so? > > Did you build GCC 4.6.0 with --enable-fully-dynamic-string in the > configure options? > I believe that is necessary on Snow Leopard, because the system > libraries are built that way. >
