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-rw-r--r--src/common/grfio.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/common/grfio.c b/src/common/grfio.c
index 6afd1d668..013c21c74 100644
--- a/src/common/grfio.c
+++ b/src/common/grfio.c
@@ -282,7 +282,7 @@ static void decode_des_etc(BYTE *buf,int len,int type,int cycle)
* Grf data decode sub : zip
*------------------------------------------
*/
-int decode_zip(char *dest, unsigned long* destLen, const char* source, unsigned long sourceLen)
+int decode_zip(unsigned char *dest, unsigned long* destLen, const unsigned char* source, unsigned long sourceLen)
{
z_stream stream;
int err;
@@ -313,7 +313,7 @@ int decode_zip(char *dest, unsigned long* destLen, const char* source, unsigned
return err;
}
-int encode_zip(char *dest, unsigned long* destLen, const char* source, unsigned long sourceLen) {
+int encode_zip(unsigned char *dest, unsigned long* destLen, const unsigned char* source, unsigned long sourceLen) {
z_stream stream;
int err;