Add hppa support.

Index: gcc/config.gcc
--- gcc/config.gcc.orig
+++ gcc/config.gcc
@@ -901,10 +901,21 @@ hppa*-*-linux* | parisc*-*-linux*)
 	    tmake_file="$tmake_file pa/t-slibgcc-dwarf-ver"
 	fi
 	;;
-# port not yet contributed.
-#hppa*-*-openbsd*)
-#	target_cpu_default="MASK_PA_11"
-#	;;
+hppa*-*-openbsd*)
+	target_cpu_default="MASK_PA_11"
+	tm_defines="${tm_defines} PIE_DEFAULT=1"
+	tm_file="${tm_file} dbxelf.h elfos.h openbsd.h openbsd-libpthread.h pa/openbsd.h \
+		 pa/pa32-regs.h"
+	tmake_file="${tmake_file} pa/t-linux"
+	# Set the libgcc version number
+	if test x$sjlj = x1; then
+	    tmake_file="$tmake_file pa/t-slibgcc-sjlj-ver"
+	else
+	    tmake_file="$tmake_file pa/t-slibgcc-dwarf-ver"
+	fi
+	gas=yes
+	gnu_ld=yes
+	;;
 hppa1.1-*-pro*)
 	target_cpu_default="MASK_PORTABLE_RUNTIME|MASK_NO_SPACE_REGS|MASK_SOFT_FLOAT"
 	tm_file="${tm_file} pa/pa32-regs.h dbxelf.h elfos.h pa/elf.h \