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-rw-r--r--gcc/configure.ac6
1 files changed, 4 insertions, 2 deletions
diff --git a/gcc/configure.ac b/gcc/configure.ac
index e9d10a97ac6..a0ec44b3af6 100644
--- a/gcc/configure.ac
+++ b/gcc/configure.ac
@@ -5435,8 +5435,10 @@ zlibdir=-L../zlib
zlibinc="-I\$(srcdir)/../zlib"
AC_ARG_WITH(system-zlib,
[AS_HELP_STRING([--with-system-zlib], [use installed libz])],
-zlibdir=
-zlibinc=
+if test x$with_system_zlib = xyes ; then
+ zlibdir=
+ zlibinc=
+fi
)
AC_SUBST(zlibdir)
AC_SUBST(zlibinc)