gcc: add some missing patches for 7.1

toolchain/gcc/patches/7.1.0/ia64-fix-libgcc.patch

@@ -0,0 +1,17 @@
+diff -Nur gcc-6.3.0.orig/libgcc/config/ia64/fde-glibc.c gcc-6.3.0/libgcc/config/ia64/fde-glibc.c
+--- gcc-6.3.0.orig/libgcc/config/ia64/fde-glibc.c	2016-01-04 15:30:50.000000000 +0100
++++ gcc-6.3.0/libgcc/config/ia64/fde-glibc.c	2017-03-05 13:07:33.316600613 +0100
+@@ -25,6 +25,8 @@
+ /* Locate the FDE entry for a given address, using glibc ld.so routines
+    to avoid register/deregister calls at DSO load/unload.  */
+ 
++#ifndef inhibit_libc
++
+ #ifndef _GNU_SOURCE
+ #define _GNU_SOURCE 1
+ #endif
+@@ -159,3 +161,4 @@
+ 
+   return data.ret;
+ }
++#endif

toolchain/gcc/patches/7.1.0/m68k-disable-atomic-uclinux.patch

@@ -0,0 +1,12 @@
+diff -Nur gcc-4.8.3.orig/libgcc/config.host gcc-4.8.3/libgcc/config.host
+--- gcc-4.8.3.orig/libgcc/config.host	2014-03-20 17:12:30.000000000 +0100
++++ gcc-4.8.3/libgcc/config.host	2014-07-26 13:15:06.359463368 +0200
+@@ -689,7 +689,7 @@
+ m68k*-*-openbsd*)
+ 	;;
+ m68k-*-uclinux*)	# Motorola m68k/ColdFire running uClinux with uClibc
+-	tmake_file="$tmake_file m68k/t-floatlib m68k/t-linux"
++	tmake_file="$tmake_file m68k/t-floatlib"
+ 	md_unwind_header=m68k/linux-unwind.h
+ 	;;
+ m68k-*-linux*)			# Motorola m68k's running GNU/Linux