1 files changed, 6 insertions, 0 deletions
diff --git a/bootstrap.py b/bootstrap.py
index cff10ba..5682bf1 100755
--- a/bootstrap.py
+++ b/bootstrap.py
@@ -36,6 +36,8 @@ parser.add_option('--x64', action='store_true',
 parser.add_option('--platform',
                   help='target platform (' + '/'.join(platform_helper.platforms()) + ')',
                   choices=platform_helper.platforms())
+parser.add_option('--force-pselect', action='store_true',
+                  help="ppoll() is used by default on Linux and OpenBSD, but older versions might need to use pselect instead",)
 (options, conf_args) = parser.parse_args()
 
 
@@ -107,6 +109,10 @@ else:
         cflags.append('-D_WIN32_WINNT=0x0501')
     if options.x64:
         cflags.append('-m64')
+if (platform.is_linux() or platform.is_openbsd()) and not options.force_pselect:
+    cflags.append('-DUSE_PPOLL')
+if options.force_pselect:
+    conf_args.append("--force-pselect")
 args.extend(cflags)
 args.extend(ldflags)
 binary = 'ninja.bootstrap'