configure: Implement --enable-host-pie

[thirdparty/gcc.git] / zlib / configure.ac

diff --git a/zlib/configure.ac b/zlib/configure.ac
index be1cfe296512dd65384fbd9569d86519a626e831..adf7aad4e510ba7195c1b64a65723fa2f8e6b34e 100644 (file)
--- a/zlib/configure.ac
+++ b/zlib/configure.ac
@@ -122,11 +122,26 @@ else
   multilib_arg=
 fi
 
+# Enable --enable-host-shared.
 AC_ARG_ENABLE(host-shared,
 [AS_HELP_STRING([--enable-host-shared],
-               [build host code as shared libraries])],
-[PICFLAG=-fPIC], [PICFLAG=])
-AC_SUBST(PICFLAG)
+               [build host code as shared libraries])])
+AC_SUBST(enable_host_shared)
+
+# Enable --enable-host-pie.
+AC_ARG_ENABLE(host-pie,
+[AS_HELP_STRING([--enable-host-pie],
+               [build host code as PIE])])
+AC_SUBST(enable_host_pie)
+
+if test x$enable_host_shared = xyes; then
+  PICFLAG=-fPIC
+elif test x$enable_host_pie = xyes; then
+  PICFLAG=-fPIE
+else
+  PICFLAG=
+fi
 
+AC_SUBST(PICFLAG)
 AC_CONFIG_FILES([Makefile])
 AC_OUTPUT