COMMON: set SB_DWORD_VER from configure

Author: chrisws

configure.ac

@@ -367,6 +367,9 @@ PACKAGE_CFLAGS="${PACKAGE_CFLAGS} -Wall -Wno-unused-result"
 BUILD_DATE=`date +"%a, %d %b %Y"`
 AC_DEFINE_UNQUOTED([BUILD_DATE],["$BUILD_DATE"],[Build date])
 
+SB_DWORD_VER=`awk -F "." '{printf "0x%02d%02d%02d", $1,$2,$3}' <<< ${PACKAGE_VERSION}`
+AC_DEFINE_UNQUOTED([SB_DWORD_VER],[$SB_DWORD_VER],[SB_DWORD_VER])
+
 AC_SUBST(PACKAGE_CFLAGS)
 AC_SUBST(PACKAGE_LIBS)
 

src/common/brun.c

@@ -1196,7 +1196,9 @@ int brun_create_task(const char *filename, byte *preloaded_bc, int libf) {
       lseek(h, sizeof(unit_sym_t) * uft.sym_count, SEEK_CUR);
     }
     read(h, &hdr, sizeof(bc_head_t));
-
+    if (hdr.sbver != SB_DWORD_VER) {
+      panic("File '%s' version incorrect", fname);
+    }
     source = malloc(hdr.size + 4);
     lseek(h, 0, SEEK_SET);
     read(h, source, hdr.size);

src/common/sys.h

@@ -83,7 +83,6 @@ typedef long int var_int_t;
 #else
   #define SB_STR_VER VERSION " Console " SB_VERSYS SB_BIT_SZ BUILD_DATE
 #endif
-#define SB_DWORD_VER        0x908   // 00 (major) 08 (minor) 03 (patch)
 #define SB_PANICMSG_SIZE    1023
 #define SB_ERRMSG_SIZE      2048
 #define SB_KEYWORD_SIZE     128

src/common/units.h

@@ -65,7 +65,7 @@ typedef enum {
  */
 typedef struct {
   char sign[4]; /**< Always "SBUn" */
-  int version; /**< version of this structure, always 1 */
+  int version; /**< version of this structure */
   char base[SB_KEYWORD_SIZE + 1]; /**< unit-base name */
   int  sym_count; /**< number of symbols */
 } unit_file_t;