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authorVinson Lee <vlee@freedesktop.org>2015-01-05 14:53:03 -0800
committerVinson Lee <vlee@freedesktop.org>2015-01-06 15:06:54 -0800
commit5ae13051249f6f9d44dae15e9deb62e7cb09aed7 (patch)
treee8cd945f66f20b18fd52abf702d3a10ecb1f0ea0 /m4
parenta8ef880a1b38cbcfc26e9f829338739d16cece99 (diff)
ax_prog_flex.m4: Merge upstream OpenBSD fixes.
Merge the following upstream autoconf-archive patches. ax_prog_flex: change grep syntax to accept e.g. "flex.real" in case a wrapper or symlink is used. AX_PROG_FLEX: avoid use of grep empty string escape extension (fix for OpenBSD) AX_PROG_FLEX: Also accept gflex. Signed-off-by: Vinson Lee <vlee@freedesktop.org> Reviewed-by: Matt Turner <mattst88@gmail.com> Reviewed-by: Jonathan Gray <jsg@openbsd.org>
Diffstat (limited to 'm4')
-rw-r--r--m4/ax_prog_flex.m44
1 files changed, 2 insertions, 2 deletions
diff --git a/m4/ax_prog_flex.m4 b/m4/ax_prog_flex.m4
index 82fbc30c32..1f1f597761 100644
--- a/m4/ax_prog_flex.m4
+++ b/m4/ax_prog_flex.m4
@@ -42,7 +42,7 @@
# modified version of the Autoconf Macro, you may extend this special
# exception to the GPL to apply to your modified version as well.
-#serial 9
+#serial 12
# mattst88:
# Replaced m4_ifnblank(...) with m4_ifval(m4_normalize(...), ...)
@@ -53,7 +53,7 @@ AC_DEFUN([AX_PROG_FLEX], [
AC_REQUIRE([AC_PROG_EGREP])
AC_CACHE_CHECK([if flex is the lexer generator],[ax_cv_prog_flex],[
- AS_IF([$LEX --version 2>/dev/null | $EGREP -q '^\<flex\>'],
+ AS_IF([$LEX --version 2>/dev/null | $EGREP -qw '^g?flex'],
[ax_cv_prog_flex=yes], [ax_cv_prog_flex=no])
])
AS_IF([test "$ax_cv_prog_flex" = "yes"],