Fix PR1606:
The AC_CHECK_HEADER macro was used instead of AC_CHECK_HEADERS. The former does
not automatically add a #define to the configure variables while the latter
does. Consequently, the HAVE_PTHREAD_H symbol was not defined which caused the
Mutex.cpp file to compile to an empty implementation.
llvm-svn: 41137
diff --git a/llvm/autoconf/configure.ac b/llvm/autoconf/configure.ac
index 5ba07c8..b639c88 100644
--- a/llvm/autoconf/configure.ac
+++ b/llvm/autoconf/configure.ac
@@ -689,10 +689,11 @@
AC_CHECK_HEADERS([dlfcn.h execinfo.h fcntl.h inttypes.h limits.h link.h])
AC_CHECK_HEADERS([malloc.h setjmp.h signal.h stdint.h unistd.h utime.h])
-AC_CHECK_HEADERS([windows.h sys/mman.h sys/param.h sys/resource.h sys/time.h])
+AC_CHECK_HEADERS([windows.h])
+AC_CHECK_HEADERS([sys/mman.h sys/param.h sys/resource.h sys/time.h])
AC_CHECK_HEADERS([sys/types.h malloc/malloc.h mach/mach.h])
if test "$ENABLE_THREADS" -eq 1 ; then
- AC_CHECK_HEADER(pthread.h,
+ AC_CHECK_HEADERS(pthread.h,
AC_SUBST(HAVE_PTHREAD, 1),
AC_SUBST(HAVE_PTHREAD, 0))
else