Allow individual targets to decide if string escapes should be allowed. Disable for PPC and Z80.

	PR 25311
	* as.h (TC_STRING_ESCAPES): Provide a default definition.
	* app.c (do_scrub_chars): Use TC_STRING_ESCAPES instead of
	NO_STRING_ESCAPES.
	* read.c (next_char_of_string): Likewise.
	* config/tc-ppc.h (TC_STRING_ESCAPES): Define.
	* config/tc-z80.h (TC_STRING_ESCAPES): Define.

1 files changed, 4 insertions, 0 deletions

diff --git a/gas/as.h b/gas/as.h
index b57742a..b8d3d74 100644
--- a/gas/as.h
+++ b/gas/as.h
@@ -588,6 +588,10 @@ COMMON int flag_m68k_mri;
 #define flag_m68k_mri 0
 #endif
 
+#ifndef TC_STRING_ESCAPES
+#define TC_STRING_ESCAPES 1
+#endif
+
 #ifdef WARN_COMMENTS
 COMMON int           warn_comment;
 COMMON unsigned int  found_comment;