https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89592
--- Comment #4 from bin cheng <amker at gcc dot gnu.org> --- (In reply to Jakub Jelinek from comment #1) > Started with r233126. Before that change, check2227 has not been NRV > optimized, but now it is. That doesn't explain an ABI difference though. Hmm?? I am getting below error when building gcc-6-branch at commit 6b94e1332a8322aff91b7ed88395b79080f5e30d cfns.gperf: In function ‘const char* libc_name_p(const char*, unsigned int)’: cfns.gperf:101:1: error: ‘const char* libc_name_p(const char*, unsigned int)’ redeclared inline with ‘gnu_inline’ attribute cfns.gperf:26:14: note: ‘const char* libc_name_p(const char*, unsigned int)’ previously declared here cfns.gperf: At global scope: cfns.gperf:26:14: warning: inline function ‘const char* libc_name_p(const char*, unsigned int)’ used but never defined
