2 files changed, 5 insertions, 35 deletions

diff --git a/src/cmd/5l/5.out.h b/src/cmd/5l/5.out.h
index ce5ea791c6..ba738eeb63 100644
--- a/src/cmd/5l/5.out.h
+++ b/src/cmd/5l/5.out.h
@@ -40,40 +40,6 @@ enum
 #define	REGARG		-1
 /*c2go enum { REGARG = -1 }; */
 
-// avoid conflict with ucontext.h. sigh.
-#undef REG_R0
-#undef REG_R1
-#undef REG_R2
-#undef REG_R3
-#undef REG_R4
-#undef REG_R5
-#undef REG_R6
-#undef REG_R7
-#undef REG_R8
-#undef REG_R9
-#undef REG_R10
-#undef REG_R11
-#undef REG_R12
-#undef REG_R13
-#undef REG_R14
-#undef REG_R15
-#define REG_R0 GO_REG_R0
-#define REG_R1 GO_REG_R1
-#define REG_R2 GO_REG_R2
-#define REG_R3 GO_REG_R3
-#define REG_R4 GO_REG_R4
-#define REG_R5 GO_REG_R5
-#define REG_R6 GO_REG_R6
-#define REG_R7 GO_REG_R7
-#define REG_R8 GO_REG_R8
-#define REG_R9 GO_REG_R9
-#define REG_R10 GO_REG_R10
-#define REG_R11 GO_REG_R11
-#define REG_R12 GO_REG_R12
-#define REG_R13 GO_REG_R13
-#define REG_R14 GO_REG_R14
-#define REG_R15 GO_REG_R15
-
 enum
 {
 	REG_R0 = 32, // must be 16-aligned
diff --git a/src/cmd/gc/lex.c b/src/cmd/gc/lex.c
index 2bff531e57..042099bd5e 100644
--- a/src/cmd/gc/lex.c
+++ b/src/cmd/gc/lex.c
@@ -8,6 +8,10 @@
 #include	"y.tab.h"
 #include	<ar.h>
 
+#ifndef PLAN9
+#include	<signal.h>
+#endif
+
 #undef	getc
 #undef	ungetc
 #define	getc	ccgetc
@@ -1275,7 +1279,7 @@ talph:
 		if(c >= Runeself) {
 			ungetc(c);
 			rune = getr();
-			// 0xb7 · is used for internal names
+			// 0xb7 · is used for internal names
 			if(!isalpharune(rune) && !isdigitrune(rune) && (importpkg == nil || rune != 0xb7))
 				yyerror("invalid identifier character U+%04x", rune);
 			cp += runetochar(cp, &rune);