diff options
| -rwxr-xr-x | src/tools/msvc/pgflex.bat | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/src/tools/msvc/pgflex.bat b/src/tools/msvc/pgflex.bat index da7c33d7af2..58870f05121 100755 --- a/src/tools/msvc/pgflex.bat +++ b/src/tools/msvc/pgflex.bat @@ -25,9 +25,19 @@ if "%1" == "contrib\seg\segscan.l" call :generate %1 contrib\seg\segscan.c echo Unknown flex input: %1 exit 1 +REM For non-reentrant scanners we need to fix up the yywrap macro definition +REM to keep the MS compiler happy. +REM For reentrant scanners (like the core scanner) we do not +REM need to (and must not) change the yywrap definition. :generate flex %3 -o%2 %1 -exit %errorlevel% +if errorlevel 1 exit %errorlevel% +perl -n -e "exit 1 if /^\%%option\s+reentrant/;" %1 +if errorlevel 1 exit 0 +perl -pi.bak -e "s/yywrap\(n\)/yywrap()/;" %2 +if errorlevel 1 exit %errorlevel% +del %2.bak +exit 0 :noflex echo WARNING! flex install not found, attempting to build without |