Introduce format string for pid_t

BeOS and Haiku on i386 use long for 32-bit types, including pid_t.
Using %d with pid_t therefore results in a warning.

Unfortunately POSIX:2008 does not define a PRId* string for pid_t.

In some places pid_t was previously casted to long and %ld hardcoded.
The predecessor of this patch added another upcast for the simpletrace
filename but was not applied to date.

Since new uses of pid_t with %d keep creeping in, let's instead define
an OS-dependent format string and use that consistently.

Cc: Stefan Hajnoczi <stefanha@gmail.com>
Cc: Blue Swirl <blauwirbel@gmail.com>
Cc: Ingo Weinhold <ingo_weinhold@gmx.de>
Cc: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Andreas Färber <andreas.faerber@web.de>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/configure b/configure
index 4c4aa92..44c092a 100755
--- a/configure
+++ b/configure
@@ -3041,7 +3041,7 @@ if test "$trace_backend" = "simple"; then
 fi
 # Set the appropriate trace file.
 if test "$trace_backend" = "simple"; then
-  trace_file="\"$trace_file-%u\""
+  trace_file="\"$trace_file-\" FMT_pid"
 fi
 if test "$trace_backend" = "dtrace" -a "$trace_backend_stap" = "yes" ; then
   echo "CONFIG_SYSTEMTAP_TRACE=y" >> $config_host_mak