Try to find <target>-ar when cross compiling

Teach the configure script to look for an ar tool prefixed with the
target triple (i.e., `<target>-ar`) when cross compiling. This matches
the behavior for tools that have built-in autoconf macros, like ranlib.
(For some reason there is no AC_PROG_AR macro.)

Also, remove the AC_PROG_ARCHIVE and AC_PROG_ARCHIVE_ADD macros, which
have been dead code since 780b34cd.

With this change, cross compiling libkrb5 works a bit better out of the
box.

ticket: 8915 (new)

diff --git a/src/aclocal.m4 b/src/aclocal.m4
index 2394f7e335ce63983038d99a3836ae49dbcc8fad..54005fafe316a9ce5d5d37456df74ab6e6c4df73 100644 (file)
--- a/src/aclocal.m4
+++ b/src/aclocal.m4
@@ -280,8 +280,6 @@ if test $krb5_cv_func_sigprocmask_use = yes; then
 fi
 ])dnl
 dnl
-AC_DEFUN(AC_PROG_ARCHIVE, [AC_CHECK_PROG(ARCHIVE, ar, ar cqv, false)])dnl
-AC_DEFUN(AC_PROG_ARCHIVE_ADD, [AC_CHECK_PROG(ARADD, ar, ar cruv, false)])dnl
 dnl
 dnl check for <dirent.h> -- CHECK_DIRENT
 dnl (may need to be more complex later)
@@ -1035,10 +1033,8 @@ AC_DEFUN(KRB5_BUILD_LIBRARY,
 [AC_REQUIRE([KRB5_LIB_AUX])dnl
 AC_REQUIRE([AC_PROG_LN_S])dnl
 AC_REQUIRE([AC_PROG_RANLIB])dnl
-AC_REQUIRE([AC_PROG_ARCHIVE])dnl
-AC_REQUIRE([AC_PROG_ARCHIVE_ADD])dnl
 AC_REQUIRE([AC_PROG_INSTALL])dnl
-AC_CHECK_PROG(AR, ar, ar, false)
+AC_CHECK_TOOL(AR, ar, false)
 if test "$AR" = "false"; then
   AC_MSG_ERROR([ar not found in PATH])
 fi