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Commit08a0c2d

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Adjust yywrap macro for non-reentrant scanners for MSVC.
The MSVC compiler complains if a macro is called with less argumentsthan its definition provides for. flex generates a macro with oneargument for yywrap, but only supplies the argument for reentrantscanners, so we remove the useless argument in the non-reentrantcase to silence the warning.
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‎src/tools/msvc/pgflex.bat

Lines changed: 11 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -25,9 +25,19 @@ if "%1" == "contrib\seg\segscan.l" call :generate %1 contrib\seg\segscan.c
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echo Unknown flex input:%1
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exit1
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REM For non-reentrant scanners we need to fix up the yywrap macro definition
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REM to keep the MS compiler happy.
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REM For reentrant scanners (like the core scanner) we do not
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REM need to (and must not) change the yywrap definition.
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:generate
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flex%3 -o%2%1
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exit%errorlevel%
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iferrorlevel1exit%errorlevel%
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perl -n -e"exit 1 if /^\%%option\s+reentrant/;"%1
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iferrorlevel1exit0
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perl -pi.bak -e"s/yywrap\(n\)/yywrap()/;"%2
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iferrorlevel1exit%errorlevel%
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del%2.bak
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exit0
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:noflex
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echo WARNING! flex install not found, attempting to build without

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