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-rw-r--r--apps/plugin.h2
-rw-r--r--firmware/common/ctype.c2
-rw-r--r--firmware/include/ctype.h2
3 files changed, 3 insertions, 3 deletions
diff --git a/apps/plugin.h b/apps/plugin.h
index 085cccfc6b..c2243a59fb 100644
--- a/apps/plugin.h
+++ b/apps/plugin.h
@@ -178,7 +178,7 @@ struct plugin_api {
void* (*memset)(void *dst, int c, size_t length);
void* (*memcpy)(void *out, const void *in, size_t n);
#ifndef SIMULATOR
- char *_ctype_;
+ const char *_ctype_;
#endif
/* sound */
diff --git a/firmware/common/ctype.c b/firmware/common/ctype.c
index 5ec0af8add..651dacda86 100644
--- a/firmware/common/ctype.c
+++ b/firmware/common/ctype.c
@@ -1,6 +1,6 @@
#include <ctype.h>
-char _ctype_[257]={
+const char _ctype_[257]={
0,
_C, _C, _C, _C, _C, _C, _C, _C,
_C, _C|_S, _C|_S, _C|_S, _C|_S, _C|_S, _C, _C,
diff --git a/firmware/include/ctype.h b/firmware/include/ctype.h
index c72a256e4b..f884b09f81 100644
--- a/firmware/include/ctype.h
+++ b/firmware/include/ctype.h
@@ -39,7 +39,7 @@ int _EXFUN(_toupper, (int __c));
#ifdef PLUGIN
#define _ctype_ (rb->_ctype_)
#else
-extern char _ctype_[];
+extern const char _ctype_[];
#endif
#ifndef __cplusplus