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-rw-r--r--src/heretic/m_misc.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/heretic/m_misc.c b/src/heretic/m_misc.c
index 91642f02..951dce0c 100644
--- a/src/heretic/m_misc.c
+++ b/src/heretic/m_misc.c
@@ -365,6 +365,7 @@ void M_ForceUppercase(char *text)
int usemouse;
int usejoystick;
+extern int usegamma;
extern int key_right, key_left, key_up, key_down;
extern int key_strafeleft, key_straferight;
extern int key_fire, key_use, key_strafe, key_speed;