Fix nvptx-none build.

gcc.spec

@@ -256,6 +256,7 @@ Patch8: gcc10-foffload-default.patch
 Patch9: gcc10-Wno-format-security.patch
 Patch10: gcc10-rh1574936.patch
 Patch11: gcc10-d-shared-libphobos.patch
+Patch12: gcc10-coroutines.patch
 
 # On ARM EABI systems, we do want -gnueabi to be part of the
 # target triple.
@@ -767,6 +768,7 @@ to NVidia PTX capable devices if available.
 %patch10 -p0 -b .rh1574936~
 %endif
 %patch11 -p0 -b .d-shared-libphobos~
+%patch12 -p0 -b .coroutines~
 
 echo 'Red Hat %{version}-%{gcc_release}' > gcc/DEV-PHASE
 

gcc10-coroutines.patch

@@ -0,0 +1,16 @@
+2020-01-18  Jakub Jelinek  <jakub@redhat.com>
+
+	* coroutines.cc (get_fn_local_identifier): Fix NO_DOT_IN_LABEL
+	but non-NO_DOLLAR_IN_LABEL case build.
+
+--- gcc/cp/coroutines.cc.jj	2020-01-18 13:47:09.318360691 +0100
++++ gcc/cp/coroutines.cc	2020-01-18 19:05:48.349119608 +0100
+@@ -2252,7 +2252,7 @@ get_fn_local_identifier (tree orig, cons
+   sep = ".";
+ #else
+ #ifndef NO_DOLLAR_IN_LABEL
+-  sep = "$"
++  sep = "$";
+ #else
+   sep = "_";
+   pfx = "__";