<html><body><div style="color:#000; background-color:#fff; font-family:times new roman, new york, times, serif;font-size:12pt"><div>Hi,</div><div><br></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style: normal;">I was quite successful in using the SDK version 2012.9 on Windows 7 (btw thanks a million for making it available).</div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style: normal;"><br></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style: normal;">But after upgrading to version 2012.11, I started running into linking errors:</div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent;
font-style: normal;"><br></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style: normal;">mingw32-make[5]: Entering directory `d:/Projects/OpenPilot/build/ground/openpilotgcs/src/libs/gst_lib'<br>linking ../../../lib/openpilotgcs/GST_libd.dll<br>Info: resolving vtable for __cxxabiv1::__si_class_type_info by linking to __imp___ZTVN10__cxxabiv120__si_class_type_infoE (auto-import)<br>Info: resolving vtable for __cxxabiv1::__class_type_info by linking to __imp___ZTVN10__cxxabiv117__class_type_infoE (auto-import)<br>Info: resolving vtable for __cxxabiv1::__vmi_class_type_info by linking to __imp___ZTVN10__cxxabiv121__vmi_class_type_infoE (auto-import)<br>Info: resolving ___gst_debug_min by linking to __imp____gst_debug_min (auto-import)<br>Info: resolving _GST_CAT_DEFAULT by linking to __imp__GST_CAT_DEFAULT (auto-import)<br>Creating library file:
d:/Projects/OpenPilot/build/ground/openpilotgcs/lib/openpilotgcs/libGST_libd.a<br>d:/openpi~2/qtsdk/mingw/bin/../lib/gcc/mingw32/4.4.0/../../../../mingw32/bin/ld.exe: warning: auto-importing has been activated without --enable-auto-import specified on the command line.<br>This should work unless it involves constant data structures referencing symbols from auto-imported DLLs.<br>debug/gst_global.o:gst_global.cpp:(.eh_frame+0x12): undefined reference to `__gxx_personality_v0'<br>debug/videowidget.o:videowidget.cpp:(.eh_frame+0x12): undefined reference to `__gxx_personality_v0'<br>debug/moc_videowidget.o:moc_videowidget.cpp:(.eh_frame+0x11): undefined reference to `__gxx_personality_v0'<br>collect2: ld returned 1 exit status<br>mingw32-make[5]: *** [../../../lib/openpilotgcs/GST_libd.dll] Error 1</div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style:
normal;"><br></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style: normal;">Downgrading the SDK makes the problem go away.</div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style: normal;"><br></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style: normal;">I found this post which seems to discuss a similar issue : http://gstreamer-devel.966125.n4.nabble.com/Questions-on-MinGW-configuration-of-GStreamer-SDK-Windows-build-td4657961.html</div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style: normal;">But not being an expert in toolchains and related matters, I could not make a lot of
sense out of it.</div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style: normal;"><br></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style: normal;">The project I am working on is to add video processing capabilities to the Open Pilot (OP) Ground Control Station (GCS) application (http://www.openpilot.org/).</div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style: normal;">This application is built on QT with mingw. See this link for details about the GCS build environment : http://wiki.openpilot.org/display/Doc/Windows%3A+Building+and+Packaging</div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: times new roman,new york,times,serif; background-color:
transparent; font-style: normal;"><br></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style: normal;">Any help will be greatly appreciated.</div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style: normal;"><br></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style: normal;">filnet.<br></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style: normal;"><br></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style: normal;"></div></div></body></html>