syntax: Remove definitions of O_CLOEXEC, except in examples (thanks Jim Meyering).

The gnulib <fcntl.h> replacement header will now define this symbol if
it's not defined already.

cat/virt-ls.c

@@ -36,10 +36,6 @@
 #include "guestfs.h"
 #include "options.h"
 
-#ifndef O_CLOEXEC
-#define O_CLOEXEC 0
-#endif
-
 /* Currently open libguestfs handle. */
 guestfs_h *g;
 

cfg.mk

@@ -27,6 +27,7 @@ url_dir_list = \
 # Exclude some filenames.
 exclude_file_name_regexp--sc_bindtextdomain = ^(daemon|erlang|examples|tests)/
 exclude_file_name_regexp--sc_error_message_period = ^php/
+exclude_file_name_regexp--sc_prohibit_always-defined_macros = ^examples/
 
 # Tests not to run as part of "make distcheck".
 local-checks-to-skip =			\

daemon/daemon.h

@@ -30,10 +30,6 @@
 
 #include "guestfs_protocol.h"
 
-#ifndef O_CLOEXEC
-#define O_CLOEXEC 0
-#endif
-
 /*-- in guestfsd.c --*/
 extern int verbose;
 

fish/fish.h

@@ -23,10 +23,6 @@
 
 #include "fish-cmds.h"
 
-#ifndef O_CLOEXEC
-#define O_CLOEXEC 0
-#endif
-
 #ifndef SOCK_CLOEXEC
 #define SOCK_CLOEXEC 0
 #endif

generator/tests_c_api.ml

@@ -42,10 +42,6 @@ let rec generate_tests () =
 #include <sys/types.h>
 #include <fcntl.h>
 
-#ifndef O_CLOEXEC
-#define O_CLOEXEC 0
-#endif
-
 #include \"guestfs.h\"
 
 #define STREQ(a,b) (strcmp((a),(b)) == 0)

src/guestfs-internal.h

@@ -30,10 +30,6 @@
 
 #include "hash.h"
 
-#ifndef O_CLOEXEC
-#define O_CLOEXEC 0
-#endif
-
 #ifndef SOCK_CLOEXEC
 #define SOCK_CLOEXEC 0
 #endif

src/info.c

@@ -33,10 +33,6 @@
 #include "guestfs-internal-actions.h"
 #include "guestfs_protocol.h"
 
-#ifndef O_CLOEXEC
-#define O_CLOEXEC 0
-#endif
-
 static int run_qemu_img_info (guestfs_h *g, const char *filename, int (*fn) (guestfs_h *g, char *line, void *data), void *data);
 static int check_disk_format (guestfs_h *h, char *line, void *data);
 static int check_disk_virtual_size (guestfs_h *h, char *line, void *data);

tests/c-api/test-last-errno.c

@@ -31,10 +31,6 @@
 
 #include "guestfs.h"
 
-#ifndef O_CLOEXEC
-#define O_CLOEXEC 0
-#endif
-
 int
 main (int argc, char *argv[])
 {

tests/c-api/test-user-cancel.c

@@ -46,10 +46,6 @@
 
 #include "guestfs.h"
 
-#ifndef O_CLOEXEC
-#define O_CLOEXEC 0
-#endif
-
 static const char *filename = "test.img";
 static const off_t filesize = 1024*1024*1024;
 

tests/xml/fake-libvirt-xml.c

@@ -25,10 +25,6 @@
 #include <sys/types.h>
 #include <sys/stat.h>
 
-#ifndef O_CLOEXEC
-#define O_CLOEXEC 0
-#endif
-
 /* Old <libvirt.h> had a slightly different definition of
  * virDomainGetXMLDesc (using 'int' for flags instead of 'unsigned
  * int').  To avoid an error trying to redefine it with a different