[PATCH] libgloss: switch to AM_PROG_AR

Now that we require Automake 1.15, we can use this macro rather than
set the tool up ourselves.  The current code doesn't properly search
for a prefixed ar tool as-is.
---
 libgloss/Makefile.in          |   1 +
 libgloss/aarch64/aclocal.m4   | 112 ++++++++++++++++++++++
 libgloss/aarch64/configure    | 176 +++++++++++++++++++++++++++++++++-
 libgloss/aarch64/configure.ac |   3 +-
 libgloss/aclocal.m4           |  60 ++++++++++++
 libgloss/arm/aclocal.m4       | 112 ++++++++++++++++++++++
 libgloss/arm/configure        | 176 +++++++++++++++++++++++++++++++++-
 libgloss/arm/configure.ac     |   3 +-
 libgloss/configure            | 144 ++++++++++++++++++++++++++--
 libgloss/configure.ac         |   4 +-
 10 files changed, 776 insertions(+), 15 deletions(-)

diff --git a/libgloss/aarch64/configure.ac b/libgloss/aarch64/configure.ac
index cd91c2212d05..d691f11a714c 100644
--- a/libgloss/aarch64/configure.ac
+++ b/libgloss/aarch64/configure.ac
@@ -11,8 +11,7 @@ AC_PROG_INSTALL
 AC_NO_EXECUTABLES
 AC_PROG_CC
 AM_PROG_AS
-AR=${AR-ar}
-AC_SUBST(AR)
+AM_PROG_AR
 LD=${LD-ld}
 AC_SUBST(LD)
 AC_PROG_RANLIB
diff --git a/libgloss/arm/configure.ac b/libgloss/arm/configure.ac
index 2affeb9716c9..44f5f73962e4 100644
--- a/libgloss/arm/configure.ac
+++ b/libgloss/arm/configure.ac
@@ -31,8 +31,7 @@ AC_PROG_INSTALL
 AC_NO_EXECUTABLES
 AC_PROG_CC
 AM_PROG_AS
-AR=${AR-ar}
-AC_SUBST(AR)
+AM_PROG_AR
 LD=${LD-ld}
 AC_SUBST(LD)
 AC_PROG_RANLIB
diff --git a/libgloss/configure.ac b/libgloss/configure.ac
index a656fe1853fb..43e7916631e0 100644
--- a/libgloss/configure.ac
+++ b/libgloss/configure.ac
@@ -251,9 +251,7 @@ AM_CONDITIONAL(CONFIG_LIBNOSYS, test x$config_libnosys = xtrue)
 
 AC_PROG_CC
 AM_PROG_AS
-AC_CHECK_PROG(AR, ar, ar, :)
-AR=${AR-ar}
-AC_SUBST(AR)
+AM_PROG_AR
 LD=${LD-ld}
 AC_SUBST(LD)
 AC_PROG_RANLIB
-- 
2.34.1