2019-09-30  Andreas Tobler  <andreast@gcc.gnu.org>

	* config.gcc: Use the secure-plt on FreeBSD 13 and upwards for
	32-bit PowerPC.
	Define TARGET_FREEBSD32_SECURE_PLT for 64-bit PowerPC.
	* config/rs6000/t-freebsd64: Make use of the above define and build
	the 32-bit libraries with secure-plt.

From-SVN: r276295