Failing build when using binutils 2.34-1 on Cygwin 32/64-bit

Wed Mar 4 14:58:00 GMT 2020

On 3/4/20 8:59 AM, Joachim Metz wrote:
> I maintain numerous projects, as part of that I've set up CI tests that use
> current Cygwin 32-bit and 64-bit. Recently I've noticed that builds were
> failing with errors like:
> /usr/lib/gcc/i686-pc-cygwin/9.2.0/../../../../i686-pc-cygwin/bin/ld:
> fwsi_test_error.o: in function `fwsi_test_error_sprint':
> /home/appveyor/libfwsi/tests/fwsi_test_error.c:72: undefined reference to
> `_imp__libfwsi_error_sprint'
> /home/appveyor/libfwsi/tests/fwsi_test_error.c:72: undefined reference to
> `__imp_libfwsi_error_sprint'
> /home/appveyor/libfwsi/tests/fwsi_test_error.c:72:(.text.startup+0x24):
> relocation truncated to fit: R_X86_64_PC32 against undefined symbol
> `__imp_libfwsi_error_sprint'
> Since I did not make significant changes to the project sources I started
> analyzing the build environment. I was able to reproduce the issues
> with binutils 2.34-1 on Cygwin 64-bit on a separate Windows 10
> installation.
> When I reverted to binutils 2.31-1 the build issues do NOT surface. I
> suspect a change or issue with binutils 2.34-1 is causing the build issues.
> Happy to provide additional details / help troubleshooting where possible.
> Kind regards,
> Joachim

Can you compare the objects where that symbol is supposed to be defined
and the objects where it is supposed to be referenced between the 2
binutils versions?

Can you make a minimalist test case?

Might be a good idea to file a ticket with binutils too.

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