(Sorry, 'bout incorrect quote level in previous email!) E
> On 9 Jan 2020, at 13:00, Erlend Aasland <erlen...@innova.no> wrote: > >> On 13 Feb 2019, at 20:16, Daniel Johnson <address@hidden> wrote: >> >> I am using guile 1.8.8, gcc 7.4.0, and flex 2.6.4. Here's my configure line: >> >> On build, I get a long string of errors originating in >> out/lexer.cc<http://lexer.cc>: >> >> out/lexer.cc:6272<http://lexer.cc:6272>:46: error: cannot convert >> 'std::istream {aka >> std::basic_istream<char>}' to 'std::istream* {aka std::basic_istream<char>*}' >> in assignment >> YY_CURRENT_BUFFER_LVALUE->yy_input_file = yyin; > > Use flex 2.5.37, as the flex 2.6.* C++ lexer is broken (discussed on the Bison > lists): a stream pointer has been changed in the declaration to a reference > without doing it in the code. Reported some years ago on the flex list. > > `configure` should warn or bail on incompatible flex versions. I suggest we > add a version check in configure.ac to ensure that flex version is between > 2.5.37 and 2.5.39 (given that 2.5.38 and 2.5.39 actually works). > > > > Erlend E. Aasland
