Use const char* for z_error argument

diff --git a/zbuild.h b/zbuild.h
index 7fa4322ab527c1407aef432f472680c664012dd8..901111cd79910376fa19e6fe2f09c2250ab2eca6 100644 (file)
--- a/zbuild.h
+++ b/zbuild.h
@@ -203,7 +203,7 @@
 #ifdef ZLIB_DEBUG
 #  include <stdio.h>
    extern int Z_INTERNAL z_verbose;
-   extern void Z_INTERNAL z_error(char *m);
+   extern void Z_INTERNAL z_error(const char *m);
 #  define Assert(cond, msg) {if (!(cond)) z_error(msg);}
 #  define Trace(x) {if (z_verbose >= 0) fprintf x;}
 #  define Tracev(x) {if (z_verbose > 0) fprintf x;}

diff --git a/zutil.c b/zutil.c
index 54e5b02b020e3b0814f241f44b586ed39a10f1d8..cd67cf435e82b12c56374a64469a9c0217d13952 100644 (file)
--- a/zutil.c
+++ b/zutil.c
@@ -87,7 +87,7 @@ unsigned long Z_EXPORT PREFIX(zlibCompileFlags)(void) {
 #  endif
 int Z_INTERNAL z_verbose = verbose;
 
-void Z_INTERNAL z_error(char *m) {
+void Z_INTERNAL z_error(const char *m) {
     fprintf(stderr, "%s\n", m);
     exit(1);
 }