From f760150d8f18aa23bb43f827c9884986911b15ff Mon Sep 17 00:00:00 2001
From: Markus Armbruster <armbru@pond.sub.org>
Date: Sun, 8 Mar 2009 17:14:59 +0100
Subject: [PATCH] Rename plane_caps() to pln_caps() and give it external
 linkage

---
 include/prototypes.h     |  1 +
 src/lib/subs/aircombat.c | 21 ++-------------------
 src/lib/subs/plnsub.c    | 19 +++++++++++++++++++
 3 files changed, 22 insertions(+), 19 deletions(-)

diff --git a/include/prototypes.h b/include/prototypes.h
index 667430e7..9cc98f7a 100644
--- a/include/prototypes.h
+++ b/include/prototypes.h
@@ -545,6 +545,7 @@ extern void pln_dropoff(struct emp_qelem *, struct ichrstr *,
 			coord, coord, int);
 extern void pln_mine(struct emp_qelem *, coord, coord);
 extern int pln_capable(struct plnstr *, int, int);
+extern int pln_caps(struct emp_qelem *);
 extern int pln_airbase_ok(struct plnstr *, int, int);
 extern int carrier_planes(struct shpstr *, int);
 extern void pln_sel(struct nstr_item *, struct emp_qelem *,
diff --git a/src/lib/subs/aircombat.c b/src/lib/subs/aircombat.c
index 177c843f..d5dbbc85 100644
--- a/src/lib/subs/aircombat.c
+++ b/src/lib/subs/aircombat.c
@@ -55,7 +55,6 @@
 
 #define FLAK_GUN_MAX 14
 
-static int plane_caps(struct emp_qelem *);
 static void sam_intercept(struct emp_qelem *, struct emp_qelem *,
 			  natid, natid, coord, coord, int);
 static void ac_intercept(struct emp_qelem *, struct emp_qelem *,
@@ -106,7 +105,7 @@ ac_encounter(struct emp_qelem *bomb_list, struct emp_qelem *esc_list,
     getilists(ilist, rel, plane_owner);
 
     if (mission_flags & PM_R) {
-	flags = plane_caps(bomb_list);
+	flags = pln_caps(bomb_list);
 	if (flags & P_S) {
 	    PR(plane_owner, "\nSPY Plane report\n");
 	    PRdate(plane_owner);
@@ -137,7 +136,7 @@ ac_encounter(struct emp_qelem *bomb_list, struct emp_qelem *esc_list,
 	}
 
 	if (mission_flags & PM_R) {
-	    flags = plane_caps(bomb_list);
+	    flags = pln_caps(bomb_list);
 	    if (opt_HIDDEN)
 		setcont(plane_owner, sect.sct_own, FOUND_FLY);
 	    if (sect.sct_type == SCT_WATER) {
@@ -261,22 +260,6 @@ ac_encounter(struct emp_qelem *bomb_list, struct emp_qelem *esc_list,
 	pln_put(&ilist[cn]);
 }
 
-static int
-plane_caps(struct emp_qelem *list)
-{
-    struct emp_qelem *qp;
-    struct plist *plp;
-    int fl;
-
-    fl = 0;
-    for (qp = list->q_forw; qp != list; qp = qp->q_forw) {
-	plp = (struct plist *)qp;
-	fl |= plp->pcp->pl_flags;
-    }
-
-    return fl;
-}
-
 static void
 sam_intercept(struct emp_qelem *att_list, struct emp_qelem *def_list,
 	      natid def_own, natid plane_owner, coord x, coord y,
diff --git a/src/lib/subs/plnsub.c b/src/lib/subs/plnsub.c
index 9467b72b..9a1eca91 100644
--- a/src/lib/subs/plnsub.c
+++ b/src/lib/subs/plnsub.c
@@ -391,6 +391,25 @@ pln_capable(struct plnstr *pp, int wantflags, int nowantflags)
     return 1;
 }
 
+/*
+ * Return union of capabilities of planes in LIST.
+ */
+int
+pln_caps(struct emp_qelem *list)
+{
+    struct emp_qelem *qp;
+    struct plist *plp;
+    int fl;
+
+    fl = 0;
+    for (qp = list->q_forw; qp != list; qp = qp->q_forw) {
+	plp = (struct plist *)qp;
+	fl |= plp->pcp->pl_flags;
+    }
+
+    return fl;
+}
+
 /*
  * Find plane types that can operate from carrier SP.
  * If MSL find missile types, else non-missile types.