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-rw-r--r--src/os/os.h6
1 files changed, 3 insertions, 3 deletions
diff --git a/src/os/os.h b/src/os/os.h
index 1d3a0d2c2b..48e3ffd0dd 100644
--- a/src/os/os.h
+++ b/src/os/os.h
@@ -7,9 +7,9 @@ long_u mch_total_mem(int special);
int mch_chdir(char *path);
int mch_dirname(char_u *buf, int len);
int mch_get_absolute_path(char_u *fname, char_u *buf, int len, int force);
-int mch_is_absolute_path(char_u *fname);
-int mch_isdir(char_u *name);
-int mch_can_exe(char_u *name);
+int mch_is_absolute_path(const char_u *fname);
+int mch_isdir(const char_u *name);
+int mch_can_exe(const char_u *name);
const char *mch_getenv(const char *name);
int mch_setenv(const char *name, const char *value, int overwrite);
char *mch_getenvname_at_index(size_t index);