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failed to build Verilator with GCC 4.8.1 #748

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veripoolbot opened this issue Apr 22, 2014 · 5 comments
Closed

failed to build Verilator with GCC 4.8.1 #748

veripoolbot opened this issue Apr 22, 2014 · 5 comments

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@veripoolbot
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@veripoolbot veripoolbot commented Apr 22, 2014


Author Name: Jie Xu (@jiexu)
Original Redmine Issue: 748 from https://www.veripool.org
Original Date: 2014-04-22


Got following errors:

/usr/bin/flex --version
/usr/bin/flex version 2.5.4
/usr/bin/flex -d -oV3Lexer_pregen.yy.cpp ../verilog.l
/ic/sw/perl5.10.1/bin/perl ../flexfix V3Lexer <V3Lexer_pregen.yy.cpp >V3Lexer.yy.cpp
g++ -I/usr/local/include -MMD -I. -I.. -I.. -I../../include -DYYDEBUG    -ggdb -DVL_DEBUG -MP  -DDEFENV_SYSTEMC=\"\" -DDEFENV_SYSTEMC_ARCH=\"\" -DDEFENV_SYSTEMC_INCLUDE=\"\" -DD
EFENV_SYSTEMC_LIBDIR=\"\" -DDEFENV_SYSTEMPERL=\"\" -DDEFENV_SYSTEMPERL_INCLUDE=\"\" -DDEFENV_VERILATOR_ROOT=\"/tools/simulator/src/verilator_template\" -Wno-unused -c ../V3Parse
Lex.cpp
In file included from ../V3ParseLex.cpp:37:0:
V3Lexer_pregen.yy.cpp:241:18: error: expected unqualified-id before numeric constant
 #define yywrap() 1
                   ^
In file included from ../V3ParseLex.cpp:37:0:
V3Lexer_pregen.yy.cpp: In member function 'virtual int V3LexerBase::yylex()':
V3Lexer_pregen.yy.cpp:3461:10: error: 'yy_current_buffer' was not declared in this scope
    if ( ! yy_current_buffer )

@veripoolbot
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@veripoolbot veripoolbot commented Apr 22, 2014


Original Redmine Comment
Author Name: Wilson Snyder (@wsnyder)
Original Date: 2014-04-22T12:40:31Z


That's an old flex relative to a new gcc, maybe a new flex will fix it. Otherwise perhaps you could debug and provide a patch?

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@veripoolbot veripoolbot commented Apr 30, 2014


Original Redmine Comment
Author Name: Wilson Snyder (@wsnyder)
Original Date: 2014-04-30T02:04:18Z


Any luck?

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@veripoolbot veripoolbot commented Apr 30, 2014


Original Redmine Comment
Author Name: Jie Xu (@jiexu)
Original Date: 2014-04-30T07:33:33Z


Sorry, don't have time to investigate yet. Not critical for us as we have multiple GCC versions.

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@veripoolbot veripoolbot commented May 16, 2014


Original Redmine Comment
Author Name: Jie Xu (@jiexu)
Original Date: 2014-05-16T12:07:19Z


The issue exists with flex 2.5.4 and gcc 4.8.1. With flex 2.5.35 and gcc 4.8.1, there is no issue.

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@veripoolbot veripoolbot commented May 16, 2014


Original Redmine Comment
Author Name: Wilson Snyder (@wsnyder)
Original Date: 2014-05-16T13:36:14Z


Thanks. It's a flex issue then, so I don't think there's anything Verilator needs to do.

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