diff -Naur heirloom-devtools-070527-baseline/make/bsd/bsd.cc heirloom-devtools-070527/make/bsd/bsd.cc
--- heirloom-devtools-070527-baseline/make/bsd/bsd.cc	2024-12-12 22:44:47.339947054 +0300
+++ heirloom-devtools-070527/make/bsd/bsd.cc	2024-12-12 22:45:26.083948140 +0300
@@ -50,7 +50,7 @@
 extern SIG_PF
 bsdsignal (int Signal, SIG_PF Handler)
 {
-  auto SIG_PF                   previous_handler;
+  SIG_PF                   previous_handler;
 #ifdef SUN5_0
 #ifdef sun
   previous_handler = sigset (Signal, Handler);
diff -Naur heirloom-devtools-070527-baseline/make/mksh/dosys.cc heirloom-devtools-070527/make/mksh/dosys.cc
--- heirloom-devtools-070527-baseline/make/mksh/dosys.cc	2024-12-12 22:44:47.338947054 +0300
+++ heirloom-devtools-070527/make/mksh/dosys.cc	2024-12-12 22:45:49.732948803 +0300
@@ -809,7 +809,7 @@
 	int			status;
 	Boolean			command_generated_output = false;
 
-	command->text.p = (int) nul_char;
+	command->text.p = (wchar_t*) nul_char;
 	WCSTOMBS(mbs_buffer, command->buffer.start);
 	if ((fd = popen(mbs_buffer, "r")) == NULL) {
 		WCSTOMBS(mbs_buffer, command->buffer.start);
diff -Naur heirloom-devtools-070527-baseline/make/src/doname.cc heirloom-devtools-070527/make/src/doname.cc
--- heirloom-devtools-070527-baseline/make/src/doname.cc	2024-12-12 22:44:47.335947054 +0300
+++ heirloom-devtools-070527/make/src/doname.cc	2024-12-12 22:46:05.173949236 +0300
@@ -72,7 +72,7 @@
 
 #include <signal.h>
 
-#if defined (__sun) || defined (__linux__)
+#if defined (__sun) 
 #	include <stropts.h>
 #endif