[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [PATCH] Revert 'Fix logic error in _AC_PROG_LEX_YYTEXT_DECL (#109320

From: Paul Eggert
Subject: Re: [PATCH] Revert 'Fix logic error in _AC_PROG_LEX_YYTEXT_DECL (#109320)'
Date: Thu, 16 Jul 2020 15:39:05 -0700
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0

On 7/16/20 12:42 PM, Ross Burton wrote:
checking for flex... flex
checking for lex output file root... lex.yy
checking for lex library... not found
configure: WARNING: required lex library not found; giving up on flex
configure: error: readline works only with flex.

Again, bc's scanner has its own yywrap implementation, so it doesn't
need to link to libfl.

In that case, why did 'configure' fail to build the little test program? The test program also has its own yywrap implementation, so it should be just like bc. 'configure' should successfully link the test program, set ac_cv_lib_lex to 'none needed', and break out of the loop, and the warning you mentioned should not occur.

Are you using an old shell where 'ac_cv_lib_lex="${ac_lib:-none needed}' doesn't work? That might explain the problem.

reply via email to

[Prev in Thread] Current Thread [Next in Thread]