dbgcv.patch

--- dbgcv.c.orig	2021-06-09 16:42:58.071853143 +0100
+++ dbgcv.c	2021-06-10 10:32:31.453195825 +0100
@@ -17,7 +17,24 @@
 #include <fixup.h>
 #include <dbgcv.h>
 #include <linnum.h>
+#ifdef _WIN32
 #include <direct.h>
+#endif
+#ifdef __UNIX__
+#include <stdio.h>
+#include <unistd.h>
+#include <limits.h>
+#endif
+#ifndef PATH_MAX
+#define PATH_MAX 4096
+#endif
+#define _MAX_PATH PATH_MAX
+#ifndef _getcwd
+#define _getcwd getcwd
+#endif
+#ifndef _pgmptr
+#define _pgmptr "uasm"
+#endif
 #include <picohash.h>
 
 #define SIZE_CV_SEGBUF ( MAX_LINE_LEN * 4 )
@@ -1252,7 +1269,9 @@
 #define USEMD5
 
 #ifdef USEMD5
+#ifndef BUFSIZ
 #define BUFSIZ 1024*4
+#endif
 #define MD5_LENGTH ( sizeof( uint_32 ) + sizeof( uint_16 ) + 16 + sizeof( uint_16 ) )
 
 static int calc_md5(const char* filename, unsigned char* sum)
@@ -1565,22 +1584,31 @@
 		s = strcpy(s, "cwd") + 4;
 		s = strcpy(s, cv.currdir) + q + 1;
 		s = strcpy(s, "exe") + 4;
+		
 		len = strlen(_pgmptr) + 1;
 		s = strcpy(s, _pgmptr) + len;
+		
 		s = strcpy(s, "src") + 4;
 		p = cv.files[0].name;
 		if (_memicmp(p, cv.currdir, q) == 0)
 			p += q + 1;
-
+		
 		len = strlen(p) + 1;
 		s = strcpy(s, p) + len;
 		*s++ = '\0';
+		#ifdef _WIN32
 		EnvBlock->reclen = (unsigned short)(s - cv.ps - 2);
+		#else
+		EnvBlock->reclen = (unsigned short)(s - (char*)cv.ps - 2);
+		#endif
 		cv.ps = s;
 
 		/* length needs to be added for each symbol */
-
+		#ifdef _WIN32
 		cv.section->length += (s - start);
+		#else
+		cv.section->length += (s - (char*)start);
+		#endif
 
 	}
 	else {