Hi Pádraig, > The attached should fix this issue.
> process_input: > + bool pending_shell_escape_end = false; It has a syntax error: With clang and with GCC versions < 11, it is invalid to put a declaration after a label. See: =================== foo.c ================= int main () { goto label; label: int ret = 0; return ret; } =========================================== $ gcc -c foo.c foo.c: In function ‘main’: foo.c:6:3: error: a label can only be part of a statement and a declaration is not a statement 6 | int ret = 0; | ^~~ $ clang -c foo.c foo.c:6:3: error: expected expression 6 | int ret = 0; | ^ foo.c:7:10: error: use of undeclared identifier 'ret' 7 | return ret; | ^ 2 errors generated. The workaround is trivial: Add a semicolon after the colon: process_input: ; bool pending_shell_escape_end = false; Bruno