https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108389
--- Comment #2 from BBK <eebssk1 at godaftwithebk dot pub> --- It truly looks like a plugin problem. See the output eebssk1@dEBianKb:~/a$ ~/mingw-gcc/i686-w64-mingw32/bin/i686-w64-mingw32-gcc-nm *strnlen* 00000000 T _strnlen eebssk1@dEBianKb:~/a$ ~/mingw-gcc/i686-w64-mingw32/bin/i686-w64-mingw32-nm *strnlen* 00000000 b .bss 00000000 d .data 00000000 N .debug_abbrev 00000000 N .debug_aranges 00000000 N .debug_info 00000000 N .debug_line 00000000 N .debug_line_str 00000000 r .eh_frame 00000000 r .gnu.lto_.decls.65045144 00000000 r .gnu.lto_.ext_symtab.65045144 00000000 r .gnu.lto_.icf.65045144 00000000 r .gnu.lto_.inline.65045144 00000000 r .gnu.lto_.ipa_modref.65045144 00000000 r .gnu.lto_.ipa_sra.65045144 00000000 r .gnu.lto_.jmpfuncs.65045144 00000000 r .gnu.lto_.lto.65045144 00000000 r .gnu.lto_.opts 00000000 r .gnu.lto_.profile.65045144 00000000 r .gnu.lto_.pureconst.65045144 00000000 r .gnu.lto_.refs.65045144 00000000 r .gnu.lto_strnlen.4.65045144 00000000 r .gnu.lto_.symbol_nodes.65045144 00000000 r .gnu.lto_.symtab.65045144 00000000 r .rdata$zzz 00000000 T _strnlen 00000000 t .text