done
+if test "x$HAVE_THREADS" != "xno"; then
+ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for pthread_create in -lc" >&5
+printf %s "checking for pthread_create in -lc... " >&6; }
+if test ${ac_cv_lib_c_pthread_create+y}
+then :
+ printf %s "(cached) " >&6
+else case e in #(
+ e) ac_check_lib_save_LIBS=$LIBS
+LIBS="-lc $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+/* Override any GCC internal prototype to avoid an error.
+ Use char because int might match the return type of a GCC
+ builtin and then its argument prototype would still apply.
+ The 'extern "C"' is for builds by C++ compilers;
+ although this is not generally supported in C code supporting it here
+ has little cost and some practical benefit (sr 110532). */
+#ifdef __cplusplus
+extern "C"
+#endif
+char pthread_create (void);
+int
+main (void)
+{
+return pthread_create ();
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+ ac_cv_lib_c_pthread_create=yes
+else case e in #(
+ e) ac_cv_lib_c_pthread_create=no ;;
+esac
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+ conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_c_pthread_create" >&5
+printf "%s\n" "$ac_cv_lib_c_pthread_create" >&6; }
+if test "x$ac_cv_lib_c_pthread_create" = xyes
+then :
+
+ HAVE_THREADS="yes"
+ CFLAGS="$CFLAGS -D_REENTRANT -D_POSIX_PTHREAD_SEMANTICS"
+
+
+ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for the compiler flag \"-pthread\"" >&5
+printf %s "checking for the compiler flag \"-pthread\"... " >&6; }
+if test ${ax_cv_cc_pthread_flag+y}
+then :
+ printf %s "(cached) " >&6
+else case e in #(
+ e)
+
+ CFLAGS_SAVED=$CFLAGS
+ CFLAGS="$CFLAGS -Werror -pthread"
+
+ ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+int
+main (void)
+{
+return 0;
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+ ax_cv_cc_pthread_flag="yes"
+else case e in #(
+ e) ax_cv_cc_pthread_flag="no" ;;
+esac
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+ ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+ CFLAGS="$CFLAGS_SAVED"
+ ;;
+esac
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ax_cv_cc_pthread_flag" >&5
+printf "%s\n" "$ax_cv_cc_pthread_flag" >&6; }
+
+ if test "x$ax_cv_cc_pthread_flag" = 'xyes'; then
+ CFLAGS="$CFLAGS -pthread"
+ fi
+
+
+fi
+
+fi
if test "x$HAVE_THREADS" != "xno"; then
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for pthread_create in -lpthread" >&5
printf %s "checking for pthread_create in -lpthread... " >&6; }