[Bug-cpio] [PATCH] configure.ac: look for host-prefixed ar

[Benedikt Morbach]

This patch changes configure.ac to look for '${host}-ar' before looking for the 
unprefixed 'ar'.
This is useful when cross-compiling when all your binutils are prefixed.

I used AC_CHECK_TOOLS instead of AC_CHECK_TOOL, since autoconf docs say
that the former calls AC_SUBST, which saves a line.
---
 configure.ac | 1 +
 1 file changed, 1 insertion(+)

diff --git a/configure.ac b/configure.ac
index 1d3d985..6ddf528 100644
--- a/configure.ac
+++ b/configure.ac
@@ -34,6 +34,7 @@ AC_PROG_GCC_TRADITIONAL
 AC_PROG_INSTALL
 AC_PROG_RANLIB
 AC_PROG_YACC
+AC_CHECK_TOOLS([AR], [ar])
 gl_EARLY
 AC_C_PROTOTYPES
 
-- 
2.0.4