[Buildroot] [PATCH 1/2] toolchain: introduce BR2_TOOLCHAIN_HAS_GCC_BUG_83143

[Giulio Benetti]

ruby package fails to build for the SH4 architecture with optimization
enabled with gcc = 9.3.0:
http://autobuild.buildroot.net/results/f57/f5742e7fb6e8142bcdb53b7f4f5e9c1bea3558cd/

It's already been reported upstream:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83143

Signed-off-by: Giulio Benetti <giulio.benetti at benettiengineering.com>
---
 toolchain/Config.in | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/toolchain/Config.in b/toolchain/Config.in
index bf2bb3efe4..4419443930 100644
--- a/toolchain/Config.in
+++ b/toolchain/Config.in
@@ -133,6 +133,15 @@ config BR2_TOOLCHAIN_HAS_GCC_BUG_68485
 	bool
 	default y if BR2_microblaze
 
+# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83143
+# Error: invalid operands (*UND* and .text sections) for `-' on sh4.
+# This bug no longer exists in gcc 10.x but reappeared on gcc 11.x and
+# it still not been fixed yet.
+config BR2_TOOLCHAIN_HAS_GCC_BUG_83143
+	bool
+	default y if !BR2_TOOLCHAIN_GCC_AT_LEAST_10
+	depends on BR2_sh4
+
 # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85180. This bug no
 # longer exists in gcc 8.x.
 config BR2_TOOLCHAIN_HAS_GCC_BUG_85180
-- 
2.25.1