Well I realized the new failure in trying to build libobjc was coming from the Test directory and I had disabled the Test option the first time I used cmake. So that explains why this problem didn't surface the first time.
But I'm left with the first problem reported. That -base won't link with the libobjc.so.4.6. Even when -lsup++ is added to the link options. On Wed, Jun 12, 2013 at 2:31 PM, Maxthon Chan <[email protected]> wrote: > Hmm? Maybe the -std=gnu99 is an issue? > > I never built it using ninja so I am not so sure. Try use make? > > 在 2013-6-13，上午2:29，Frank Rehwinkel <[email protected]> 写道： > > Checking the ccmake settings for libobjc2, it is already setup to use > libsupc++. > > Here is the ninja build failure. > > /usr/local/bin/clang > -std=gnu99 -fexceptions > Test/CMakeFiles/AllocatePair_optimised.dir/AllocatePair.m.o > -o Test/AllocatePair_optimised > libobjc.so.4.6 -lsupc++ -Wl,-rpath,/home/frank/objc/build-1.7-RC1 > libobjc.so.4.6: undefined reference to `vtable for std::type_info' > > libobjc.so.4.6: undefined reference to > `std::type_info::__is_function_p() const' > libobjc.so.4.6: undefined reference to `typeinfo for std::type_info' > > libobjc.so.4.6: undefined reference to `std::type_info::~type_info()' > > libobjc.so.4.6: undefined reference to > `std::type_info::__do_upcast(__cxxabiv1::__class_type_inf > o const*, void**) const' > > libobjc.so.4.6: undefined reference to > `std::type_info::__is_pointer_p() const' > clang-3.4: error: linker command failed with exit code 1 (use -v to see > invocation) > ninja: build stopped: subcommand failed. > > > On Wed, Jun 12, 2013 at 2:19 PM, Maxthon Chan <[email protected]> wrote: > >> Oh I missed this out, you can build LLVM libc++ linking against libsupc++ >> too. >> >> My building system on Ubuntu is like this: >> >> clang -> LLVM -> libc++ -> libsupc++ (I am using 3.3rc2, not 3.4 head) >> Étoilé -> gnustep-gui -> gnustep-base -> libobjc2 -> libsupc++ >> libobjc2 -> libdispatch -> libobjc2 (ln -s libobjc.so libBlocksRuntime.so) >> Étoilé -> libc++ >> >> 在 2013-6-13，上午2:14，Frank Rehwinkel <[email protected]> 写道： >> >> In trying to understand your suggestion by searching the web for llvm and >> libcxxrt references, I run into notes saying that clang is normally linked >> with libsupc++. libsupc++ is in both the FreeBSD 9.1 host and the jail. >> >> Is using libsupc++ an option for building libobjc2 and gnustep-base? >> >> >> On Wed, Jun 12, 2013 at 1:57 PM, Maxthon Chan <[email protected]> wrote: >> >>> Download and build it separately using the same SVN head version. >>> >>> If you built that, you should also build libc++ (LLVM's C++ runtime) and >>> (maybe) link it against libc++rt. >>> >>> Also, when building gnustep-base, specify -I/usr/local/include and >>> -L/usr/local/lib appropriately. >>> >>> 在 2013-6-13，上午1:54，Frank Rehwinkel <[email protected]> 写道： >>> >>> gnustep-base configuration fails. See link error at the bottom and the >>> command line from config.log. In trying to rebuild objc2 1.7-RC1, I get >>> similar link errors now. I don't know why I didn't get these before but >>> maybe because now gnustep-make has been installed. >>> >>> Anyway, these errors seem to indicate that the libcxxrt.a is needed but >>> missing. In my FreeBSD 9.1 jail, there isn't even source for this library >>> let alone the library, and no port. On the FreeBSD host, there are the >>> source directories for it but as pointed out earlier, this library is not >>> yet built automatically. >>> >>> On a fresh FreeBSD 9.1 jail, where llvm and clang (trunk head 3.4) have >>> been manually built and installed to /usr/local, the configure step for >>> -base fails to link objc code. >>> >>> If I do need the libcxxrt.a, how do I build on the host? If I can do >>> that, manually copying library and headers to jail is then necessary I >>> guess. >>> >>> I tried to follow instructions from >>> http://lists.gnu.org/archive/html/gnustep-dev/2013-03/msg00127.html >>> (Building >>> libobjc2 on FreeBSD 9.1 with clang 3.2 using cmake fails) >>> >>> which says to add MK_LIBCPLUSPLUS = yes >>> to /etc/make.conf but then make in /usr/src/lib/libcxxrt gives this error >>> >>> "/usr/share/mk/bsd.own.mk", line 478: MK_LIBCPLUSPLUS can't be set by a >>> user. >>> >>> FreeBSD 9.1 seems to ship with clang 3.1 but the ports would bring it to >>> 3.2. If I'm building the library manually, which clang version is >>> sufficient? >>> >>> In case libcxxrt isn't needed, here are the configure calls for -make >>> and -base. gnustep-make is built and installed with gmake and gmake >>> install (run as root). >>> >>> export CC=/usr/local/bin/clang >>> export CXX=${CC} >>> ( >>> cd core/make >>> ./configure \ >>> --with-layout=gnustep \ >>> --with-objc-lib-flag=-l:libobjc.so.4.6 \ >>> CC=${CC} CXX=${CXX} >>> gmake >>> gmake install # as root >>> ) >>> export GNUSTEP_CONFIG_FILE=/etc/GNUstep.conf >>> . /usr/GNUstep/System/Library/Makefiles/GNUstep.sh >>> ( >>> cd core/base >>> ./configure \ >>> --with-layout=gnustep \ >>> CC=${CC} CXX=${CXX} >>> ) >>> >>> configure:13164: checking whether objc really works >>> configure:13194: /usr/local/bin/clang -o conftest -g -O2 \ >>> -I/usr/GNUstep/System/Library/Headers >>> -I/usr/GNUstep/Local/Library/Headers \ >>> -I/usr/local/include \ >>> -fgnu-runtime -x objective-c \ >>> -L/usr/GNUstep/System/Library/Libraries >>> -L/usr/GNUstep/Local/Library/Libraries -L/usr/local/lib \ >>> conftest.c \ >>> -lrt -lpthread -rdynamic -pthread \ >>> -fobjc-nonfragile-abi -fgnu-runtime \ >>> -L/home/frank/GNUstep/Library/Libraries >>> -L/usr/GNUstep/Local/Library/Libraries \ >>> -L/usr/GNUstep/System/Library/Libraries -L/usr/local/lib \ >>> -l:libobjc.so.4.6 -lm >>> >>> In file included from conftest.c:99: >>> In file included from ././config/config.objc.m:2: >>> ././config/objc-common.g:53:3: warning: assignment to Objective-C's isa >>> is deprecated in favor of object_setClass() [-Wdeprecated-objc-isa-usage] >>> obj->isa = self; >>> ^ ~~~~~~~ >>> object_setClass( , ) >>> ././config/objc-common.g:46:5: note: instance variable is declared here >>> id isa; >>> ^ >>> 1 warning generated. >>> /usr/local/lib/libobjc.so.4.6: undefined reference to `vtable for >>> std::type_info' >>> /usr/local/lib/libobjc.so.4.6: undefined reference to >>> `std::type_info::__is_function_p() const' >>> /usr/local/lib/libobjc.so.4.6: undefined reference to `typeinfo for >>> std::type_info' >>> /usr/local/lib/libobjc.so.4.6: undefined reference to >>> `std::type_info::~type_info()' >>> /usr/local/lib/libobjc.so.4.6: undefined reference to >>> `std::type_info::__do_upcast(__cxxabiv1::__class_type_info const*, void**) >>> const' >>> /usr/local/lib/libobjc.so.4.6: undefined reference to >>> `std::type_info::__is_pointer_p() const' >>> clang-3.4: error: linker command failed with exit code 1 (use -v to see >>> invocation) >>> >>> _______________________________________________ >>> Gnustep-dev mailing list >>> [email protected] >>> https://lists.gnu.org/mailman/listinfo/gnustep-dev >>> >>> >>> >> >> > >
_______________________________________________ Gnustep-dev mailing list [email protected] https://lists.gnu.org/mailman/listinfo/gnustep-dev
