Hi, For the past year, I've been (on and off) working with ola upstream on getting new-gcc (first 9, then 10) and python3 issues resolved, so that I would be able to get it into bullseye again. We're almost there, except for one thing that mystifies me.
As part of the autopkgtest, I build a small program that initializes libola to make sure that a basic initialization works. This worked previously, but now fails with: autopkgtest [15:27:45]: test command6: - - - - - - - - - - stderr - - - - - - - - - - /usr/bin/ld: /tmp/cczs0VkU.o: warning: relocation against `_ZTVN3ola2io18LoopbackDescriptorE' in read-only section `.text._ZN3ola2io18LoopbackDescriptorD2Ev[_ZN3ola2io18LoopbackDescriptorD5Ev]' /usr/bin/ld: /tmp/cczs0VkU.o: in function `main': hw.cc:(.text+0x11): undefined reference to `ola::io::LoopbackDescriptor::LoopbackDescriptor()' /usr/bin/ld: hw.cc:(.text+0x24): undefined reference to `ola::client::OlaClient::OlaClient(ola::io::ConnectedDescriptor*)' /usr/bin/ld: hw.cc:(.text+0x30): undefined reference to `ola::client::OlaClient::Setup()' /usr/bin/ld: hw.cc:(.text+0xc1): undefined reference to `ola::client::OlaClient::~OlaClient()' /usr/bin/ld: hw.cc:(.text+0xe0): undefined reference to `ola::client::OlaClient::~OlaClient()' /usr/bin/ld: /tmp/cczs0VkU.o: in function `ola::io::BidirectionalFileDescriptor::~BidirectionalFileDescriptor()': hw.cc:(.text._ZN3ola2io27BidirectionalFileDescriptorD2Ev[_ZN3ola2io27BidirectionalFileDescriptorD5Ev]+0xf): undefined reference to `vtable for ola::io::BidirectionalFileDescriptor' /usr/bin/ld: hw.cc:(.text._ZN3ola2io27BidirectionalFileDescriptorD2Ev[_ZN3ola2io27BidirectionalFileDescriptorD5Ev]+0x1d): undefined reference to `vtable for ola::io::BidirectionalFileDescriptor' /usr/bin/ld: /tmp/cczs0VkU.o: in function `ola::io::ConnectedDescriptor::~ConnectedDescriptor()': hw.cc:(.text._ZN3ola2io19ConnectedDescriptorD2Ev[_ZN3ola2io19ConnectedDescriptorD5Ev]+0xf): undefined reference to `vtable for ola::io::ConnectedDescriptor' /usr/bin/ld: hw.cc:(.text._ZN3ola2io19ConnectedDescriptorD2Ev[_ZN3ola2io19ConnectedDescriptorD5Ev]+0x1d): undefined reference to `vtable for ola::io::ConnectedDescriptor' /usr/bin/ld: /tmp/cczs0VkU.o: in function `ola::io::LoopbackDescriptor::~LoopbackDescriptor()': hw.cc:(.text._ZN3ola2io18LoopbackDescriptorD2Ev[_ZN3ola2io18LoopbackDescriptorD5Ev]+0xf): undefined reference to `vtable for ola::io::LoopbackDescriptor' /usr/bin/ld: hw.cc:(.text._ZN3ola2io18LoopbackDescriptorD2Ev[_ZN3ola2io18LoopbackDescriptorD5Ev]+0x1d): undefined reference to `vtable for ola::io::LoopbackDescriptor' /usr/bin/ld: hw.cc:(.text._ZN3ola2io18LoopbackDescriptorD2Ev[_ZN3ola2io18LoopbackDescriptorD5Ev]+0x31): undefined reference to `ola::io::LoopbackDescriptor::Close()' /usr/bin/ld: warning: creating DT_TEXTREL in a PIE collect2: error: ld returned 1 exit status autopkgtest [15:27:45]: @@@@@@@@@@@@@@@@@@@@ summary (as observed on https://salsa.debian.org/wouter/ola/-/jobs/1173462#L1297) >From what I can make out, the first message happens when a file is compiled without -fPIC and then linked into a shared library. This would be surprising if that is the reason, for libola is built using libtool throughout, and trying the build on stable works with no problem whatsoever. What am I missing? -- To the thief who stole my anti-depressants: I hope you're happy -- seen somewhere on the Internet on a photo of a billboard
