[bug-gv] [PATCH] do not define errno, as it might be a macro already.

[Bernhard R. Link]

Errno will usually be a macro nowadays (to make use of thread local
storage), so defining it as

extern int errno;

is made by the preprocessor to:

extern int (*__errno_location ());

which luckily currently still works, but shows that is really not
what should be done, so remove the definitions. (Which also silences
a compiler warning).
---
 gv/src/Ghostview.c |    2 --
 gv/src/error.h     |    2 --
 2 files changed, 0 insertions(+), 4 deletions(-)

diff --git a/gv/src/Ghostview.c b/gv/src/Ghostview.c
index eb8768c..aefefcb 100644
--- a/gv/src/Ghostview.c
+++ b/gv/src/Ghostview.c
@@ -86,8 +86,6 @@ typedef char *XPointer;
 #endif
 
 #include <errno.h>
-/* BSD 4.3 errno.h does not declare errno */
-extern int errno;
 /* Both error returns are checked for non-blocking I/O. */
 /* Manufacture the other error code if only one exists. */
 #if !defined(EWOULDBLOCK) && defined(EAGAIN)
diff --git a/gv/src/error.h b/gv/src/error.h
index f065bda..6c2e9b3 100644
--- a/gv/src/error.h
+++ b/gv/src/error.h
@@ -34,8 +34,6 @@
 #define        _GV_ERROR_H_
 
 #include <errno.h>
-/* BSD 4.3 errno.h does not declare errno */
-extern int errno;
 
 extern char* open_fail_error (int, char *, char *, int);
 
-- 
1.7.2.5