The virthread.h header file includes platform specific header files that help define the thread implementation, see code snippet below. # ifdef WIN32 # include "virthreadwin32.h" # elif defined HAVE_PTHREAD_MUTEXATTR_INIT # include "virthreadpthread.h" # else # error "Either pthreads or Win32 threads are required" # endif Unfortunately, virthread.h does not include config.h so every source file which includes virthread.h must also include config.h, regardless of if the source file directly needs definitions in config.h. This patch adds config.h to virthread.h in an effort to help simplify things. Signed-off-by: Paul Moore <pmoore(a)redhat.com&gt; --- src/util/virthread.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/src/util/virthread.h b/src/util/virthread.h index 84d3bdc..091cdd0 100644 --- a/src/util/virthread.h +++ b/src/util/virthread.h @@ -22,6 +22,8 @@ #ifndef __THREADS_H_ # define __THREADS_H_ +#include <config.h> + # include "internal.h" # include "virerror.h"