diff --git a/C/absmi.c b/C/absmi.c
index 4c804c0d6..e9c490d61 100644
--- a/C/absmi.c
+++ b/C/absmi.c
@@ -10,8 +10,11 @@
 *									 *
 * File:		absmi.c							 *
 * comments:	Portable abstract machine interpreter                    *
-* Last rev:     $Date: 2006-01-18 15:34:53 $,$Author: vsc $						 *
+* Last rev:     $Date: 2006-01-26 19:13:24 $,$Author: vsc $						 *
 * $Log: not supported by cvs2svn $
+* Revision 1.193  2006/01/18 15:34:53  vsc
+* avoid sideffects from MkBigInt
+*
 * Revision 1.192  2006/01/17 14:10:40  vsc
 * YENV may be an HW register (breaks some tabling code)
 * All YAAM instructions are now brackedted, so Op introduced an { and EndOp introduces an }. This is because Ricardo assumes that.
@@ -334,6 +337,8 @@ AritFunctorOfTerm(Term t) {
 #define TMP_BIG(v)  Yap_BigTmp
 #define RINT(v)     return(MkIntegerTerm(v))
 #define RFLOAT(v)   return(MkFloatTerm(v))
+#if USE_GMP
+
 #define RBIG(v)     return(rbig(v))
 
 static inline Term rbig(MP_INT *big)
@@ -342,6 +347,7 @@ static inline Term rbig(MP_INT *big)
   mpz_clear(big);
   return t;
 }
+#endif
 
 #define RERROR()    return(TermNil)
 
@@ -1556,6 +1562,10 @@ Yap_absmi(int inp)
 		ipc = NEXTOP(ipc,l);
 		go_on = TRUE;
 		break;
+	      case _jump:
+		ipc = ipc->u.l.l;
+		go_on = TRUE;
+		break;
 	      case _retry_c:
 	      case _retry_userc:
 		low_level_trace(retry_pred, ipc->u.lds.p, B->cp_args);
diff --git a/C/scanner.c b/C/scanner.c
index 29d5f811b..aa4d80259 100644
--- a/C/scanner.c
+++ b/C/scanner.c
@@ -425,7 +425,7 @@ get_num(int *chp, int *chbuffp, int inp_stream, int (*Nxtch) (int), int (*Quoted
 {
   char *sp = s;
   int ch = *chp;
-  Int val = 0, base = ch - '0';
+  Int val = 0L, base = ch - '0';
   int might_be_float = TRUE, has_overflow = FALSE;
 
   *sp++ = ch;
diff --git a/changes-5.1.html b/changes-5.1.html
index fe489182f..c3faea8c2 100644
--- a/changes-5.1.html
+++ b/changes-5.1.html
@@ -16,6 +16,7 @@
 
 <h2>Yap-5.1.0:</h2>
 <ul>
+<li> FIXED: make syntax error report the line where the bug was (Jude Shavlik).</li>
 <li> FIXED: ok, MkBigInt shouldn't free the bigint.</li>
 <li> FIXED: MkBigInt already frees bigint.</li>
 <li> FIXED: don't pass a pointer to a mpz_t. (Nuno Fonseca)</li>
diff --git a/configure.in b/configure.in
index 39de74033..7545aafdf 100644
--- a/configure.in
+++ b/configure.in
@@ -468,12 +468,12 @@ case "$target_os" in
           if test "$have_dl" = "yes"
 	  then
 	    SHLIB_SUFFIX=".so"
-            SHLIB_LD="ld -shared"
+            SHLIB_LD="ld -shared -export-dynamic"
             DO_SECOND_LD=""
 	    LIBS="$LIBS -ldl"
 	    case "$host_cpu" in
 	      alpha*)
-	        LDFLAGS="-export-dynamic $LDFLAGS"
+	        LDFLAGS="-dynamic $LDFLAGS"
               ;;
               *)
 	        if test "$CC" != "lcc"