gcc: switch to 12.2.0 as default

Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>

package/libgcc/Makefile

@@ -34,7 +34,7 @@ endif
 else
 ifeq ($(ADK_TARGET_ARCH_AVR32),)
 ifeq ($(ADK_TARGET_BINFMT_FLAT),)
-	${CP} ${STAGING_TARGET_DIR}/usr/lib/libgcc*.so* ${IDIR_LIBGCC}/$(ADK_TARGET_LIBC_PATH)
+	-${CP} ${STAGING_TARGET_DIR}/usr/lib/libgcc*.so* ${IDIR_LIBGCC}/$(ADK_TARGET_LIBC_PATH)
 endif
 endif
 endif

target/config/Config.in.compiler

@@ -21,7 +21,7 @@ default ADK_TOOLCHAIN_GCC_9 if ADK_TARGET_ARCH_BFIN && ADK_TARGET_BINFMT_FDPIC
 default ADK_TOOLCHAIN_GCC_10 if ADK_TARGET_ARCH_CRIS # no longer supported
 default ADK_TOOLCHAIN_GCC_10 if ADK_TARGET_ARCH_H8300 # ICE
 default ADK_TOOLCHAIN_GCC_10 if ADK_TARGET_CPU_SH_J2 # j2.patch
-default ADK_TOOLCHAIN_GCC_11
+default ADK_TOOLCHAIN_GCC_12
 
 config ADK_TOOLCHAIN_GCC_GIT
 	bool "git"

toolchain/gcc/patches/12.2.0/nios2-softfp.patch

@@ -0,0 +1,14 @@
+diff -Nur gcc-6.2.0.orig/libgcc/config.host gcc-6.2.0/libgcc/config.host
+--- gcc-6.2.0.orig/libgcc/config.host	2016-05-17 08:15:52.000000000 +0200
++++ gcc-6.2.0/libgcc/config.host	2016-10-15 14:42:53.971919904 +0200
+@@ -962,6 +962,10 @@
+ 		;;
+ 	esac
+ 	;;
++nios2-*-linux-uclibc*)
++	tmake_file="$tmake_file nios2/t-nios2 nios2/t-linux t-libgcc-pic t-slibgcc-libgcc t-softfp-sfdf t-softfp"
++	md_unwind_header=nios2/linux-unwind.h
++	;;
+ nios2-*-linux*)
+ 	tmake_file="$tmake_file nios2/t-nios2 nios2/t-linux t-libgcc-pic t-slibgcc-libgcc"
+ 	md_unwind_header=nios2/linux-unwind.h