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<chapter id="install-win32">

<title>Installation on <productname>Windows</productname></title>

<productname>Flex</productname></term>

<listitem><para>

Bison and Flex are required to build from CVS, but not required when

building from a release file. Note that Bisonversion 2.0 will not

work, but both earlierand laterversions do. Bison and Flex can be

building from a release file. Note thatonlyBison1.875 or versions

2.2and laterwill work. Bison and Flex can be

downloaded from <ulink url="http://gnuwin32.sourceforge.net"></>.

</para></listitem>

</varlistentry>

ifexist src\tools\msvc\buildenv.batcall src\tools\msvc\buildenv.bat

for /F"tokens=4 usebackq"%%fin (`bison -V`)doif"!BV!"==""SETBV=%%f

if"%BV%"==""goto novarexp

if%BV%LSS 1.875goto nobison

if%BV%EQU 2.1goto nobison

if%BV%EQU 1.875goto bisonok

if%BV%GEQ 2.2goto bisonok

goto nobison

:bisonok

if"%1"=="src\backend\parser\gram.y"call :generate%1 src\backend\parser\gram.c src\include\parser\parse.h

if"%1"=="src\backend\bootstrap\bootparse.y"call :generate%1 src\backend\bootstrap\bootparse.c src\backend\bootstrap\bootstrap_tokens.h