https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77267
Peter Wu <peter at lekensteyn dot nl> changed:
What |Removed |Added
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CC| |peter at lekensteyn dot nl
--- Comment #2 from Peter Wu <peter at lekensteyn dot nl> ---
Building Wireshark on Arch Linux with the -Wl,--as-needed linker option also
results in issues.
Example output during the linker stage (with -mmpx -fcheck-pointer-bounds):
/usr/lib/gcc/x86_64-pc-linux-gnu/6.2.1/../../../../lib/libmpxwrappers.so:
undefined reference to `get_bd'
collect2: error: ld returned 1 exit status
$ readelf -s /usr/lib/libmpxwrappers.so.2.0.0 | grep get_bd
8: 0000000000000000 0 NOTYPE GLOBAL DEFAULT UND get_bd
72: 0000000000000000 0 NOTYPE GLOBAL DEFAULT UND get_bd
$ readelf -s /usr/lib/libmpx.so.2.0.0 | grep get_bd
38: 0000000000001720 8 FUNC GLOBAL DEFAULT 13 get_bd@@LIBMPX_2.0
115: 0000000000001720 8 FUNC GLOBAL DEFAULT 13 get_bd
What helped here was explicitly adding -lmpxwrappers -lmpx to the linker flags.
