1 files changed, 3 insertions, 1 deletions

diff --git a/include/mingw.h b/include/mingw.h
index 7caedd063..654ca3ee6 100644
--- a/include/mingw.h
+++ b/include/mingw.h
@@ -180,13 +180,15 @@ int mingw_system(const char *cmd);
 
 int clearenv(void);
 char *mingw_getenv(const char *name);
+int mingw_putenv(const char *env);
 char *mingw_mktemp(char *template);
 int mkstemp(char *template);
 char *realpath(const char *path, char *resolved_path);
 int setenv(const char *name, const char *value, int replace);
-void unsetenv(const char *env);
+int unsetenv(const char *env);
 
 #define getenv mingw_getenv
+#define putenv mingw_putenv
 #define mktemp mingw_mktemp
 
 /*