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-rw-r--r--include/environment.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/include/environment.h b/include/environment.h
index 946a393..bf9f669 100644
--- a/include/environment.h
+++ b/include/environment.h
@@ -107,8 +107,8 @@ typedef struct environment_s {
unsigned char data[ENV_SIZE]; /* Environment data */
} env_t;
-/* Function that returns a character from the environment */
-unsigned char (*env_get_char)(int);
+/* Pointer to function that returns a character from the environment */
+extern unsigned char (*env_get_char)(int);
/* Function that returns a pointer to a value from the environment */
unsigned char *env_get_addr(int);