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added flex version check in configure.ac

This commit is contained in:
BVK Chaitanya 2010-04-05 21:08:30 +05:30
parent 974ac4f755
commit 0922019068
1 changed files with 13 additions and 5 deletions
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18
configure.ac
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@ -170,11 +170,6 @@ if test "x$CMP" = x; then
AC_MSG_ERROR([cmp is not found])
fi
AC_CHECK_PROGS([LEX], [flex])
if test "x$LEX" = x; then
AC_MSG_ERROR([flex is not found])
fi
AC_CHECK_PROGS([YACC], [bison])
if test "x$YACC" = x; then
AC_MSG_ERROR([bison is not found])
@ -188,10 +183,23 @@ for file in /usr/src/unifont.bdf /usr/share/fonts/X11/misc/unifont.pcf.gz /usr/s
done
AC_PROG_INSTALL
AC_PROG_SED
AC_PROG_AWK
AC_PROG_LEX
AC_PROG_MAKE_SET
AC_PROG_MKDIR_P
if test "x$LEX" = x; then
AC_MSG_ERROR([flex is not found])
else
version=`$LEX --version 2>/dev/null | $SED -e 's/flex //' | $AWK 'BEGIN { FS = "."; } { printf "%d", ($1 * 100 + $2) * 100 + $3;}'`
if test -n "$version" -a test "$version" -ge 205035; then
:
else
AC_MSG_ERROR([flex is too old. GRUB requires 2.5.35 or above])
fi
fi
# These are not a "must".
AC_PATH_PROG(RUBY, ruby)
AC_PATH_PROG(MAKEINFO, makeinfo)