Hi! I encountered some problems while building OSG using mingw.
1) can't build osgwrappers. on 32 bit windows, ld goes up to about 2GB mem usage and then aborts. Cross-compiling on 64 bit linux, it went up to a whopping 5GB after 10 minutes, at which point I had to kill it as I only have 3GB ram and it was swapping like crazy. I might try to abuse one of our servers with 16GB ram later, just to see whether it finishes eventually :) PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 22624 hcs 20 0 5472m 2.8g 540 D 11 93.8 10:00.29 ld $ /usr/i586-mingw32msvc/bin/ld --version GNU ld (GNU Binutils) 2.18.50.20080109 Native linux builds fine (uses about 800MB) 2) None of the OPENTHREADS_ATOMIC_USE flags work. I assume either gcc or win32 interlocked would be the right choice. As I am using gcc, I went for the GCC builtins first, but I get errors: CMakeFiles/OpenThreads.dir/__/common/Atomic.cpp.obj:Atomic.cpp:(.text+0x3b): undefined reference to `___sync_bool_compare_and_swap_4' CMakeFiles/OpenThreads.dir/__/common/Atomic.cpp.obj:Atomic.cpp:(.text+0xa5): undefined reference to `___sync_sub_and_fetch_4' CMakeFiles/OpenThreads.dir/__/common/Atomic.cpp.obj:Atomic.cpp:(.text+0xc5): undefined reference to `___sync_add_and_fetch_4' CMakeFiles/OpenThreads.dir/__/common/Atomic.cpp.obj:Atomic.cpp:(.text+0x61): undefined reference to `___sync_fetch_and_xor_4' CMakeFiles/OpenThreads.dir/__/common/Atomic.cpp.obj:Atomic.cpp:(.text+0x71): undefined reference to `___sync_fetch_and_or_4' CMakeFiles/OpenThreads.dir/__/common/Atomic.cpp.obj:Atomic.cpp:(.text+0x81): undefined reference to `___sync_fetch_and_and_4' collect2: ld returned 1 exit status make[2]: *** [bin/libOpenThreads.dll] Error 1 The single thing I found using google about this was that gcc seems to think these intrisics are not supported. Next I tried win32 interlocked, but apparently that relies on msvc instrinics: OpenThreads/common/Atomic.cpp:18:20: error: intrin.h: No such file or directory OpenThreads/common/Atomic.cpp: In member function 'unsigned int OpenThreads::Atomic::operator++()': OpenThreads/common/Atomic.cpp:46: error: invalid conversion from 'volatile long int*' to 'long int*' OpenThreads/common/Atomic.cpp:46: error: initializing argument 1 of 'LONG InterlockedIncrement(long int*)' OpenThreads/common/Atomic.cpp: In member function 'unsigned int OpenThreads::Atomic::operator--()': OpenThreads/common/Atomic.cpp:60: error: invalid conversion from 'volatile long int*' to 'long int*' OpenThreads/common/Atomic.cpp:60: error: initializing argument 1 of 'LONG InterlockedDecrement(long int*)' OpenThreads/common/Atomic.cpp: In member function 'unsigned int OpenThreads::Atomic::AND(unsigned int)': OpenThreads/common/Atomic.cpp:74: error: '_InterlockedAnd' was not declared in this scope OpenThreads/common/Atomic.cpp: In member function 'unsigned int OpenThreads::Atomic::OR(unsigned int)': OpenThreads/common/Atomic.cpp:88: error: '_InterlockedOr' was not declared in this scope OpenThreads/common/Atomic.cpp: In member function 'unsigned int OpenThreads::Atomic::XOR(unsigned int)': OpenThreads/common/Atomic.cpp:102: error: '_InterlockedXor' was not declared in this scope OpenThreads/common/Atomic.cpp: In member function 'unsigned int OpenThreads::Atomic::exchange(unsigned int)': OpenThreads/common/Atomic.cpp:117: error: invalid conversion from 'volatile long int*' to 'long int*' OpenThreads/common/Atomic.cpp:117: error: initializing argument 1 of 'LONG InterlockedExchange(long int*, LONG)' OpenThreads/common/Atomic.cpp: In member function 'OpenThreads::Atomic::operator unsigned int() const': OpenThreads/common/Atomic.cpp:132: error: 'MemoryBarrier' was not declared in this scope OpenThreads/common/Atomic.cpp:133: error: invalid static_cast from type 'const volatile long int' to type 'const volatile unsigned int&' OpenThreads/common/Atomic.cpp: In member function 'void* OpenThreads::AtomicPtr::get() const': OpenThreads/common/Atomic.cpp:163: error: 'MemoryBarrier' was not declared in this scope make[2]: *** [src/OpenThreads/win32/CMakeFiles/OpenThreads.dir/__/common/Atomic.cpp.obj] Error 1 make[1]: *** [src/OpenThreads/win32/CMakeFiles/OpenThreads.dir/all] Error 2 make: *** [all] Error 2 (msdn says these come from winbase.h, so I removed the intrin.h reference, but still no luck) Note, I get a working OSG with the fall-back implementation, but I assume that is suboptimal in terms of performance. 3) the libtiff I use (version 3.8.2) depends on libjpeg and zlib (just like libpng depends on zlib). Cmake doesn't handle this. How can I pass this information to the build process? -- Thanks, Csaba _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
