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--- ./m4/ax_lua.m4.orig
+++ ./m4/ax_lua.m4
@@ -257,9 +257,7 @@
],
[ dnl Query Lua for its version number.
AC_CACHE_CHECK([for $ax_display_LUA version], [ax_cv_lua_version],
- [ ax_cv_lua_version=`$LUA -e "print(_VERSION)" | \
- sed "s|^Lua \(.*\)|\1|" | \
- grep -o "^@<:@0-9@:>@\+\\.@<:@0-9@:>@\+"`
+ [ ax_cv_lua_version=`$LUA -e 'print(_VERSION:match("^Lua (%d+%.%d+)$"))'`
])
AS_IF([test "x$ax_cv_lua_version" = 'x'],
[AC_MSG_ERROR([invalid Lua version number])])
@@ -363,8 +361,7 @@
dnl =========================================================================
AC_DEFUN([_AX_LUA_CHK_VER],
[
- _ax_test_ver=`$1 -e "print(_VERSION)" 2>/dev/null | \
- sed "s|^Lua \(.*\)|\1|" | grep -o "^@<:@0-9@:>@\+\\.@<:@0-9@:>@\+"`
+ _ax_test_ver=`$1 -e 'print(_VERSION:match("^Lua (%d+%.%d+)$"))' 2>/dev/null`
AS_IF([test "x$_ax_test_ver" = 'x'],
[_ax_test_ver='0'])
AX_COMPARE_VERSION([$_ax_test_ver], [ge], [$2])
@@ -487,7 +487,7 @@
],
[ ax_cv_lua_header_version=`./conftest$EXEEXT p | \
sed "s|^Lua \(.*\)|\1|" | \
- grep -o "^@<:@0-9@:>@\+\\.@<:@0-9@:>@\+"`
+ grep -E -o "^@<:@0-9@:>@+\.@<:@0-9@:>@+"`
],
[ax_cv_lua_header_version='unknown'])
CPPFLAGS=$_ax_lua_saved_cppflags
|
