[lldb] [test] Pass appropriate -L&-Wl,-rpath for libc++ on NetBSD

Pass appropriate -L and -Wl,-rpath flags pointing out to the LLVM
library directory on NetBSD.  This is necessary since clang on NetBSD
requires libc++ but it is not installed as part of the system
by default.  For the purpose of running buildbot, we want LLDB to use
just-built libc++.

Differential Revision: https://reviews.llvm.org/D58630

llvm-svn: 355502

1 files changed, 11 insertions, 0 deletions

diff --git a/lldb/lit/helper/build.py b/lldb/lit/helper/build.py
index 1b8227d163c..d82c688de7b 100755
--- a/lldb/lit/helper/build.py
+++ b/lldb/lit/helper/build.py
@@ -35,6 +35,13 @@ parser.add_argument('--compiler',
                     required=True,
                     help='Path to a compiler executable, or one of the values [any, msvc, clang-cl, gcc, clang]')
 
+parser.add_argument('--libs-dir',
+                    metavar='directory',
+                    dest='libs_dir',
+                    required=False,
+                    action='append',
+                    help='If specified, a path to linked libraries to be passed via -L')
+
 parser.add_argument('--tools-dir',
                     metavar='directory',
                     dest='tools_dir',
@@ -225,6 +232,7 @@ class Builder(object):
         self.nodefaultlib = args.nodefaultlib
         self.verbose = args.verbose
         self.obj_ext = obj_ext
+        self.lib_paths = args.libs_dir
 
     def _exe_file_name(self):
         assert self.mode != 'compile'
@@ -650,6 +658,9 @@ class GccBuilder(Builder):
             if sys.platform == 'darwin':
                 main_symbol = '_main'
             args.append('-Wl,-e,' + main_symbol)
+        if sys.platform.startswith('netbsd'):
+            for x in self.lib_paths:
+                args += ['-L' + x, '-Wl,-rpath,' + x]
         args.extend(['-o', self._exe_file_name()])
         args.extend(self._obj_file_names())