[PATCH:libxtrans 01/10] Fix warnings about static functions declared but never defined

[Alan Coopersmith]

Add #define XTRANS_TRANSPORT_C to transport.c and check for it
before making static function declarations and other bits needed
only when compiling the Xtrans code itself, not from other sources
that include the Xtransint.h header for the struct definitions.

Signed-off-by: Alan Coopersmith <alan.coopersmith at oracle.com>
---
 Xtransint.h |    7 ++++++-
 transport.c |    3 +++
 2 files changed, 9 insertions(+), 1 deletions(-)

diff --git a/Xtransint.h b/Xtransint.h
index 787d721..47d98ba 100644
--- a/Xtransint.h
+++ b/Xtransint.h
@@ -68,7 +68,7 @@ from The Open Group.
  * message.
  */
 
-#ifndef XTRANSDEBUG
+#if !defined(XTRANSDEBUG) && defined(XTRANS_TRANSPORT_C)
 #  define XTRANSDEBUG 1
 #endif
 
@@ -307,6 +307,9 @@ typedef struct _Xtransport_table {
 /* Flags to preserve when setting others */
 #define TRANS_KEEPFLAGS	(TRANS_NOUNLINK|TRANS_ABSTRACT)
 
+#ifdef XTRANS_TRANSPORT_C /* only provide static function prototypes when
+			     building the transport.c file that has them in */
+
 #ifdef __clang__
 /* Not all clients make use of all provided statics */
 #pragma clang diagnostic push
@@ -421,4 +424,6 @@ static int trans_mkdir (
 #define PRMSG(lvl,x,a,b,c)	((void)0)
 #endif /* XTRANSDEBUG */
 
+#endif /* XTRANS_TRANSPORT_C */
+
 #endif /* _XTRANSINT_H_ */
diff --git a/transport.c b/transport.c
index 0013b01..c14057d 100644
--- a/transport.c
+++ b/transport.c
@@ -53,6 +53,9 @@ from The Open Group.
 #define xrealloc(_ptr,_size)	realloc(_ptr,_size)
 #define xfree(_ptr)		free(_ptr)
 
+#define XTRANS_TRANSPORT_C  /* used to flag Xtransint.h that it's being used
+			       here, not just #included in another file */
+
 #include "Xtransint.h"
 
 #ifdef __clang__
-- 
1.7.3.2