#!/bin/sh
#*=====================================================================*/
#*    serrano/prgm/project/bigloo/bigloo/autoconf/pthreadmutexrec      */
#*    -------------------------------------------------------------    */
#*    Author      :  Manuel Serrano                                    */
#*    Creation    :  Wed Aug  9 13:27:23 1995                          */
#*    Last change :  Mon Jul 10 13:58:27 2023 (serrano)                */
#*    -------------------------------------------------------------    */
#*    Check for the host pthread timedlock library.                    */
#*=====================================================================*/

#*---------------------------------------------------------------------*/
#*    flags                                                            */
#*---------------------------------------------------------------------*/
cflags=
pthreadlibs="-lpthread"

#*---------------------------------------------------------------------*/
#*    We parse the arguments                                           */
#*---------------------------------------------------------------------*/
while : ; do
  case $1 in
    "")
      break;;

    --cflags=*|-cflags=*)
      cflags="`echo $1 | sed 's/^[-a-z]*=//'`";;

    --lib=*|-lib=*)
      pthreadlibs="`echo $1 | sed 's/^[-a-z]*=//'`";;

    -*)
      echo "Unknown option \"$1\", ignored" >&2;;
  esac
  shift
done


file=$TMP/actest$USER
aout=$TMP/Xactest$USER

#*---------------------------------------------------------------------*/
#*    compile                                                          */
#*---------------------------------------------------------------------*/
compile="$CC $cflags $file.c -o $aout $pthreadlibs >/dev/null"

#*---------------------------------------------------------------------*/
#*    The test C file                                                  */
#*---------------------------------------------------------------------*/
if( test -f $file.c ); then
   rm -f $file.c || exit $?
fi

#*---------------------------------------------------------------------*/
#*    Test                                                             */
#*---------------------------------------------------------------------*/
cat > $file.c <<EOF
#define _GNU_SOURCE 500

#include <pthread.h>
#include <sched.h>
#include <stdio.h>

int main( int argc, char *argv[] ) {
   pthread_mutex_t mutex;
   pthread_t thread;
   pthread_mutexattr_t attr;

   pthread_mutexattr_init( &attr );
   pthread_mutexattr_settype( &attr, PTHREAD_MUTEX_RECURSIVE );

   pthread_mutex_init( &mutex, &attr );

   pthread_create( &thread, 0L, 0L, 0L );

   pthread_mutex_lock( &mutex );
   pthread_mutex_unlock( &mutex );

   sched_yield();
   pthread_join( thread, 0L );
}
EOF

#*---------------------------------------------------------------------*/
#*    Compilation test                                                 */
#*---------------------------------------------------------------------*/
if eval "$BUILDSH $compile"; then
   echo "1"
else
   echo "0"
fi

\rm -f $file.*
\rm -f $aout
\rm -rf $aout*

exit 0
