Re: g++ fails with error
On Thursday, August 15, 2013 12:54:48 AM UTC+5:30, Gerhard Fiedler wrote: wrote: Hello, I have a c++ shared object that I am compiling using the following command. g++ -g -Wall -c -o cpplib.o cpplib.cpp And I am creating the shared object using the following command. g++ -shared -o libcpplib.so cpplib.o (I am aware that I can do this one single command, these are two separate invocations because I had the project setup on eclipse and that's how eclipse cdt does it.). My host runs a RedHat 6.x x86_64 OS. The compilation fails with the following error. [root@dev-80 cpplib]# g++ -g -Wall -fPIC -c -o cpplib.o cpplib.cpp [root@dev-80 cpplib]# g++ -shared -fPIC -o libcpplib.so cpplib.o /usr/bin/ld: /usr/lib/gcc/x86_64-redhat-linux/4.4.7/libstdc++.a(ios_init.o): relocation R_X86_64_32 against `pthread_cancel' can not be used when making a shared object; recompile with -fPIC /usr/lib/gcc/x86_64-redhat-linux/4.4.7/libstdc++.a: could not read symbols: Bad value collect2: ld returned 1 exit status [root@dev-80 cpplib]# I am certain that I haven't used the 'pthread_cancel' function in my code. Can anyone help me with this? Did you try what the error message says? That is, g++ -g -Wall -fPIC -c -o cpplib.o cpplib.cpp Gerhard Well, I have tried that. Moreover, My first step (which is the compilation) already has the -fPIC option included. ___ help-gplusplus mailing list help-gplusplus@gnu.org https://lists.gnu.org/mailman/listinfo/help-gplusplus
Re: g++ fails with error
bharath...@gmail.com wrote: Hello, I have a c++ shared object that I am compiling using the following command. g++ -g -Wall -c -o cpplib.o cpplib.cpp And I am creating the shared object using the following command. g++ -shared -o libcpplib.so cpplib.o (I am aware that I can do this one single command, these are two separate invocations because I had the project setup on eclipse and that's how eclipse cdt does it.). My host runs a RedHat 6.x x86_64 OS. The compilation fails with the following error. [root@dev-80 cpplib]# g++ -g -Wall -fPIC -c -o cpplib.o cpplib.cpp [root@dev-80 cpplib]# g++ -shared -fPIC -o libcpplib.so cpplib.o /usr/bin/ld: /usr/lib/gcc/x86_64-redhat-linux/4.4.7/libstdc++.a(ios_init.o): relocation R_X86_64_32 against `pthread_cancel' can not be used when making a shared object; recompile with -fPIC /usr/lib/gcc/x86_64-redhat-linux/4.4.7/libstdc++.a: could not read symbols: Bad value collect2: ld returned 1 exit status [root@dev-80 cpplib]# I am certain that I haven't used the 'pthread_cancel' function in my code. Can anyone help me with this? Did you try what the error message says? That is, g++ -g -Wall -fPIC -c -o cpplib.o cpplib.cpp Gerhard ___ help-gplusplus mailing list help-gplusplus@gnu.org https://lists.gnu.org/mailman/listinfo/help-gplusplus
Re: g++ fails with error
g++ 4.4 and its shared library are quite old. Try to upgrade to 4.8.1... -- (@_ | Maurizio Loreti //\ | V_/_ | EMail/ROT13: znhevmvb.ybe...@tznvy.pbz ___ help-gplusplus mailing list help-gplusplus@gnu.org https://lists.gnu.org/mailman/listinfo/help-gplusplus
