https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93399
--- Comment #2 from Marek Polacek <mpolacek at gcc dot gnu.org> --- The error I see is: /tmp/ccmVatwF.s: Assembler messages: /tmp/ccmVatwF.s:90: Error: invalid character (0xa) in mnemonic /tmp/ccmVatwF.s:92: Error: unassigned file number 2 /tmp/ccmVatwF.s:92: Error: junk at end of line, first unrecognized character is `3' /tmp/ccmVatwF.s:99: Error: invalid character (0xa) in mnemonic /tmp/ccmVatwF.s:101: Error: unassigned file number 3 /tmp/ccmVatwF.s:101: Error: junk at end of line, first unrecognized character is `2' /tmp/ccmVatwF.s:120: Error: unassigned file number 3 /tmp/ccmVatwF.s:120: Error: junk at end of line, first unrecognized character is `2' /tmp/ccmVatwF.s: Error: unassigned file number 2 /tmp/ccmVatwF.s: Error: unassigned file number 3 /tmp/ccmVatwF.s:6287: Error: can't resolve `.text.startup' {.text.startup section} - `.LFB2035' {*UND* section} /tmp/ccmVatwF.s:6358: Error: can't resolve `.LFE1554' {*UND* section} - `.LFB1554' {.text.startup section} /tmp/ccmVatwF.s:8073: Error: can't resolve `.LFE1554' {*UND* section} - `.LFB1554' {.text.startup section} /tmp/ccmVatwF.s:8075: Error: can't resolve `.text.startup' {.text.startup section} - `.LFB2035' {*UND* section} /tmp/ccmVatwF.s: Error: .size expression for _GLOBAL__sub_I_main does not evaluate to a constant Broke somewhere between GCC 7 and 8.