[binutils-gdb] Add --with-system-zlib to top level configure

[H.J.Lu]

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=cf39cfc52ebd683d55fc396a77355f34b5094c04

commit cf39cfc52ebd683d55fc396a77355f34b5094c04
Author: H.J. Lu <hjl.tools@gmail.com>
Date:   Wed Apr 1 04:57:28 2015 -0700

    Add --with-system-zlib to top level configure
    
    The top level configure supports --with-system-zlib.  This patch makes
    configure --help to display --with-system-zlib.
    
    	* configure.ac: Add --with-system-zlib.
    	* configure: Regenerated.

Diff:
---
 ChangeLog    | 5 +++++
 configure    | 8 ++++++++
 configure.ac | 2 ++
 3 files changed, 15 insertions(+)

diff --git a/ChangeLog b/ChangeLog
index 37450f4..457a6bb 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2015-04-01  H.J. Lu  <hongjiu.lu@intel.com>
+
+	* configure.ac: Add --with-system-zlib.
+	* configure: Regenerated.
+
 2015-03-31  H.J. Lu  <hongjiu.lu@intel.com>
 
 	* src-release.sh: Don't configure with  --with-target-subdir=.
diff --git a/configure b/configure
index b719d38..97250fa 100755
--- a/configure
+++ b/configure
@@ -747,6 +747,7 @@ ospace_frag'
 ac_user_opts='
 enable_option_checking
 with_build_libsubdir
+with_system_zlib
 enable_as_accelerator_for
 enable_offload_targets
 enable_gold
@@ -1518,6 +1519,7 @@ Optional Packages:
   --with-PACKAGE[=ARG]    use PACKAGE [ARG=yes]
   --without-PACKAGE       do not use PACKAGE (same as --with-PACKAGE=no)
   --with-build-libsubdir=DIR  Directory where to find libraries for build system
+  --with-system-zlib      use installed libz
   --with-mpc=PATH         specify prefix directory for installed MPC package.
                           Equivalent to --with-mpc-include=PATH/include plus
                           --with-mpc-lib=PATH/lib
@@ -2854,6 +2856,12 @@ if test x$with_gnu_as = xno ; then
 fi
 
 use_included_zlib=
+
+# Check whether --with-system-zlib was given.
+if test "${with_system_zlib+set}" = set; then :
+  withval=$with_system_zlib;
+fi
+
 # Make sure we don't let ZLIB be added if we didn't want it.
 if test x$with_system_zlib = xyes ; then
   use_included_zlib=no
diff --git a/configure.ac b/configure.ac
index a4e4c7d..ef5f5b1 100644
--- a/configure.ac
+++ b/configure.ac
@@ -245,6 +245,8 @@ if test x$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