This error occurs since I upgraded my gcc to 4.2, so I suspect it's my bad. If you can learn anything from it, you're welcome to it. On starting opensim.exe, terrain loading fails with:

LoadWorld() - Found a heightmap in local database, loading
Stacktrace:

  at OpenJPEGNet.OpenJPEG.EncodeFromImage (System.Drawing.Bitmap,string) <0xffffffff>
  at OpenJPEGNet.OpenJPEG.EncodeFromImage (System.Drawing.Bitmap,string) <0x00044>
  at OpenSim.Region.Terrain.TerrainEngine.exportJpegImage (string) <0x00274>
  at OpenSim.Region.Environment.Scenes.Scene.CreateTerrainTexture () <0x0001f>
  at OpenSim.Region.Environment.Scenes.Scene.LoadWorldMap () <0x00163>
  at OpenSim.OpenSimMain.SetupWorld () <0x00352>
  at OpenSim.OpenSimMain.StartUp () <0x001ea>
  at OpenSim.Application.Main (string[]) <0x0032d>
  at (wrapper runtime-invoke) System.Object.runtime_invoke_void_string[] (object,intptr,intptr,intptr) <0xffffffff>

Native stacktrace:

        mono [0x81276e0]
        mono [0x8114540]
        /lib/tls/libpthread.so.0 [0x400c68f0]
        /lib/tls/libc.so.6(calloc+0xd0) [0x42073e90]
        /usr/local/lib/libglib-2.0.so.0(g_malloc0+0x2e) [0x4004f3e2]
        mono [0x8112e2e]
        mono [0x8113ac7]
        mono [0x8113f87]
        mono [0x81140e8]
        mono(mono_compile_method+0x2c) [0x807d0e4]
        mono [0x8113943]
        mono [0x8113f87]
        mono [0x81140e8]
        mono(mono_compile_method+0x2c) [0x807d0e4]
        mono [0x806bf42]
        [0x402ee032]
        [0x43a1de05]
        [0x43a1d9b8]
        [0x43a17394]
        [0x41f3e31b]
        [0x40f76beb]
        [0x40aa06e6]
        [0x40aa0063]
        mono [0x8114423]
        mono(mono_runtime_invoke+0x18) [0x807e934]
        mono(mono_runtime_exec_main+0x50) [0x807f664]
        mono(mono_runtime_run_main+0x16f) [0x807f36b]
        mono(strftime+0x1b43) [0x8058793]
        mono(mono_main+0x764) [0x8059038]
        mono(__fxstat64+0x147) [0x8057c57]
        /lib/tls/libc.so.6(__libc_start_main+0xe4) [0x42015704]
        mono(dlopen+0x41) [0x8057bb1]