The TPF assembler supports dwarf4 discriminators, but the TPF
debuggers do not. Ok to apply?
* config/s390/tpf.h (SUPPORTS_DISCRIMINATOR): Define to 0 for TPF.
Index: gcc/config/s390/tpf.h
===================================================================
--- gcc/config/s390/tpf.h (revision 189993)
+++ gcc/config/s390/tpf.h (working copy)
@@ -116,3 +116,6 @@
#define MATH_LIBRARY "CLBM"
#define LIBSTDCXX "CPP2"
#endif /* ! _TPF_H */
+
+/* GAS supports it, but the debuggers don't, so avoid it. */
+#define SUPPORTS_DISCRIMINATOR 0
