Require gawk the usermode helper fails with awk

[zfs] / config / spl-build.m4

diff --git a/config/spl-build.m4 b/config/spl-build.m4
index 40f072bf7191a4409308250adb0d74901f84ae59..4d6109a0e281deea950cdd626bdc69c793f33c60 100644 (file)
--- a/config/spl-build.m4
+++ b/config/spl-build.m4
@@ -191,7 +191,16 @@ AC_DEFUN([SPL_AC_KERNEL], [
 dnl #
 dnl # Default SPL user configuration
 dnl #
-AC_DEFUN([SPL_AC_CONFIG_USER], [])
+AC_DEFUN([SPL_AC_CONFIG_USER], [
+       dnl # Explicitly check for gawk, we require it for the the usermode
+       dnl # helper.  For some reason the standard awk command does not
+       dnl # behave correctly when invoked from the usermode helper.
+       AS_IF([test "x$AWK" != xgawk], [
+                AC_MSG_ERROR([
+       *** Required util gawk missing.  Please install the required
+       *** gawk package for your distribution and try again.])
+       ])
+])
 
 AC_DEFUN([SPL_AC_LICENSE], [
        AC_MSG_CHECKING([spl license])