Allow mixing target and not-target directives

[deliverable/binutils-gdb.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index a4e4c7d835a21e9b512a03997ec90ec734d53874..a81d7813247a5d1593bb646f36b073c314984901 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -245,6 +245,8 @@ if test x$with_gnu_as = xno ; then
 fi
 
 use_included_zlib=
+AC_ARG_WITH(system-zlib,
+[AS_HELP_STRING([--with-system-zlib], [use installed libz])])
 # Make sure we don't let ZLIB be added if we didn't want it.
 if test x$with_system_zlib = xyes ; then
   use_included_zlib=no
@@ -2274,14 +2276,23 @@ fi
 
 # Sometimes we have special requirements for the host libiberty.
 extra_host_libiberty_configure_flags=
+extra_host_zlib_configure_flags=
 case " $configdirs " in
   *" lto-plugin "* | *" libcc1 "*)
     # When these are to be built as shared libraries, the same applies to
     # libiberty.
     extra_host_libiberty_configure_flags=--enable-shared
     ;;
+  *" bfd "*)
+    # When bfd is to be built as a shared library, the same applies to
+    # zlib.
+    if test "$enable_shared" = "yes"; then
+      extra_host_zlib_configure_flags=--enable-host-shared
+    fi
+    ;;
 esac
 AC_SUBST(extra_host_libiberty_configure_flags)
+AC_SUBST(extra_host_zlib_configure_flags)
 
 # Produce a warning message for the subdirs we can't configure.
 # This isn't especially interesting in the Cygnus tree, but in the individual