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build: Use #ifdef to check for #defines

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for example, in case HAVE_MEMFD is #undef, checking with #if HAVE_MEMFD
gives a warning (gcc 5.4.1, Ubuntu)

pulsecore/shm.c: In function 'sharedmem_create':
pulsecore/shm.c:208:5: warning: "HAVE_MEMFD" is not defined [-Wundef]
 #if HAVE_MEMFD

use #ifdef or #if defined() to check for presence of a #define

Signed-off-by: Peter Meerwald-Stadler <pmeerw@pmeerw.net>
This commit is contained in:
Peter Meerwald-Stadler 2017-03-07 16:29:30 +01:00
parent 48ba5e4957
commit a199b9045e
4 changed files with 8 additions and 8 deletions
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4
src/modules/dbus/module-dbus-protocol.c
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@ -220,7 +220,7 @@ static void io_event_cb(pa_mainloop_api *mainloop, pa_io_event *e, int fd, pa_io
unsigned int flags = 0;
DBusWatch *watch = userdata;
#if HAVE_DBUS_WATCH_GET_UNIX_FD
#ifdef HAVE_DBUS_WATCH_GET_UNIX_FD
pa_assert(fd == dbus_watch_get_unix_fd(watch));
#else
pa_assert(fd == dbus_watch_get_fd(watch));
@ -291,7 +291,7 @@ static dbus_bool_t watch_add_cb(DBusWatch *watch, void *data) {
ev = mainloop->io_new(
mainloop,
#if HAVE_DBUS_WATCH_GET_UNIX_FD
#ifdef HAVE_DBUS_WATCH_GET_UNIX_FD
dbus_watch_get_unix_fd(watch),
#else
dbus_watch_get_fd(watch),