New question #76755 on Ubuntu: https://answers.launchpad.net/ubuntu/+question/76755
I have a C++ program written several years ago which uses the pcilib library and was last compiled by g++ in 2006. I am running Jaunty on an amd64, also tried on a 32-bit Celeron with the same result. Trying to recompile under the current g++, after fixing a few minor issues that changes in the language could reasonably be expected to introduce, such as adding #include<cerrno>, the source compiles, but the link phase gives errors. pupo...@puposet:~/Documents/Projects/BabyTog/2006software$ make g++ -o../bin/tog tog.o blue.o ring.o -lpci blue.o: In function `adc::adc()': blue.cpp:(.text+0x6e0): undefined reference to `pci_alloc()' blue.cpp:(.text+0x726): undefined reference to `pci_init(pci_access*)' blue.cpp:(.text+0x72e): undefined reference to `pci_scan_bus(pci_access*)' blue.cpp:(.text+0x773): undefined reference to `pci_fill_info(pci_dev*, int)' blue.cpp:(.text+0x790): undefined reference to `pci_cleanup(pci_access*)' blue.cpp:(.text+0x7b1): undefined reference to `pci_cleanup(pci_access*)' blue.o: In function `adc::adc()': blue.cpp:(.text+0x86c): undefined reference to `pci_alloc()' blue.cpp:(.text+0x8b2): undefined reference to `pci_init(pci_access*)' blue.cpp:(.text+0x8ba): undefined reference to `pci_scan_bus(pci_access*)' blue.cpp:(.text+0x903): undefined reference to `pci_fill_info(pci_dev*, int)' blue.cpp:(.text+0x920): undefined reference to `pci_cleanup(pci_access*)' blue.cpp:(.text+0x941): undefined reference to `pci_cleanup(pci_access*)' collect2: ld returned 1 exit status make: *** [tog] Error 1 The packages g++, pciutils and libpci-dev are installed and nm shows that /lib/libpci.so does indeed provide the missing routines. Testing with the simple C pci example provided with the library (but for some reason deleted from the Ubuntu version, which is a shame because it is the only extant documentation of the procedure usage) I find that it comp[iles and runs correctly if compiled with gcc, but produces the same errors if compiled with g++. So: pupo...@puposet:~/Downloads/pci/pciutils-3.1.3$ gcc -o example example.c -lpci pupo...@puposet:~/Downloads/pci/pciutils-3.1.3$ is OK but pupo...@puposet:~/Downloads/pci/pciutils-3.1.3$ g++ -o example example.c -lpci /tmp/ccxOw8m4.o: In function `main': example.c:(.text+0x1e): undefined reference to `pci_alloc()' example.c:(.text+0x31): undefined reference to `pci_init(pci_access*)' example.c:(.text+0x3d): undefined reference to `pci_scan_bus(pci_access*)' example.c:(.text+0x65): undefined reference to `pci_fill_info(pci_dev*, int)' example.c:(.text+0x76): undefined reference to `pci_read_byte(pci_dev*, int)' example.c:(.text+0x178): undefined reference to `pci_lookup_name(pci_access*, char*, int, int, ...)' example.c:(.text+0x1c0): undefined reference to `pci_cleanup(pci_access*)' collect2: ld returned 1 exit status Isn't, although again there is no problem with compilation, it just fails to link. It looks like some sort of problem with the name mangling. Tim Jackson -- You received this question notification because you are a member of UF Unanswered Posts Team, which is an answer contact for Ubuntu. _______________________________________________ Mailing list: https://launchpad.net/~ubuntuforums-unanswered Post to : [email protected] Unsubscribe : https://launchpad.net/~ubuntuforums-unanswered More help : https://help.launchpad.net/ListHelp
