--- SDF.h	2014-06-04 07:22:26.000000000 +0200
+++ SDF.h.new	2014-06-04 10:06:18.521116967 +0200
@@ -85,7 +85,7 @@
 int SDFswap(SDF *hdr);
 int SDFnoswap(SDF *hdr);
 int SDFisswapping(SDF *hdr);
-int SDFsetmaxbufsz(int new);
+int SDFsetmaxbufsz(int);
 int SDFrdvecs(SDF *hdr, ...
 	     /* char *name, int n, void *address, int stride,  
 		... , 
@@ -113,10 +113,10 @@
 
 /* These four are harder to write than one might guess. */
 /* They're in the library to avoid duplicating code. */
-int SDFgetint(SDF *sdfp, char *name, int *value);
-int SDFgetint64(SDF *sdfp, char *name, int64_t *value);
-int SDFgetfloat(SDF *sdfp, char *name, float *value);
-int SDFgetdouble(SDF *sdfp, char *name, double *value);
+int SDFgetint(SDF *sdfp, const char *name, int *value);
+int SDFgetint64(SDF *sdfp, const char *name, int64_t *value);
+int SDFgetfloat(SDF *sdfp, const char *name, float *value);
+int SDFgetdouble(SDF *sdfp, const char *name, double *value);
 int SDFgetstring(SDF *sdfp, const char *name, char *string, int size);
 
 void SDFwrite(const char *filename, int64_t gnobj, int64_t nobj, 
--- SDFget.c.old	2014-06-04 10:17:16.380531163 +0200
+++ SDFget.c	2014-06-04 10:17:40.991953383 +0200
@@ -22,7 +22,7 @@
 /* I'll resist the temptation to make one macro to cover all these cases */
 /* Should we check for loss of precision in float too? */
 int 
-SDFgetfloat(SDF *sdfp, char *name, float *value)
+SDFgetfloat(SDF *sdfp, const char *name, float *value)
 {
     double double_value;
     int int_value;
@@ -62,7 +62,7 @@
 }
 
 int
-SDFgetdouble(SDF *sdfp, char *name, double *value)
+SDFgetdouble(SDF *sdfp, const char *name, double *value)
 {
     double double_value;
     float float_value;
@@ -102,7 +102,7 @@
 }
 
 int
-SDFgetint(SDF *sdfp, char *name, int *value)
+SDFgetint(SDF *sdfp, const char *name, int *value)
 {
     int int_value;
     float float_value;
@@ -198,7 +198,7 @@
 }
 
 int
-SDFgetint64(SDF *sdfp, char *name, int64_t *value)
+SDFgetint64(SDF *sdfp, const char *name, int64_t *value)
 {
     int int_value;
     float float_value;
--- SDF-parse.c.old	2021-04-15 15:44:40.000000000 +0200
+++ SDF-parse.c	2021-04-15 15:45:48.000000000 +0200
@@ -87,8 +87,6 @@
 #define LEXERROR 265
 
 
-
-
 /* Copy the first part of user declarations.  */
 #line 1 "SDF-parse.y"
 
@@ -117,6 +115,9 @@
 #define yydebug SDFyydebug
 #define yynerrs SDFyynerrs
 
+extern int yylex(void);
+extern int Msg_on(int level);
+
 #include <stdarg.h>
 #include <inttypes.h>
 #include <float.h>
--- SDFfuncs.c.old	2014-06-04 07:22:26.000000000 +0200
+++ SDFfuncs.c	2021-04-15 15:46:29.000000000 +0200
@@ -44,6 +44,8 @@
 char SDFerrstring[256];
 extern int SDFyyparse(void);
 
+extern void Msg_on(int);
+
 int SDFdebug(int level)
 {
     sdf_debug = level;