From be168aca851e70f07f1007dba70ed2beb07354f3 Mon Sep 17 00:00:00 2001
From: Nikita Kniazev <nok.raven@gmail.com>
Date: Sat, 20 Apr 2024 23:35:34 +0300
Subject: [PATCH] Default to Clang on FreeBSD and OpenBSD (#369)

* FreeBSD since 2012: https://lists.freebsd.org/pipermail/freebsd-current/2012-September/036480.html
* OpenBSD since 2017-2020: https://marc.info/?l=openbsd-cvs&m=150109829003860
---
 src/build-system.jam    |  2 +-
 test/BoostBuild.py      |  2 +-
 test/default_toolset.py | 16 ++++++++++------
 test/test_all.py        |  3 +--
 4 files changed, 13 insertions(+), 10 deletions(-)

diff --git a/src/build-system.jam b/src/build-system.jam
index bc8fea9faf..1f6c72b1e4 100644
--- a/src/build-system.jam
+++ b/src/build-system.jam
@@ -642,7 +642,7 @@ local rule should-clean-project ( project )
             {
                 default-toolset = vmsdecc ;
             }
-            else if [ os.name ] = MACOSX
+            else if [ os.name ] = MACOSX || [ os.name ] = FREEBSD || [ os.name ] = OPENBSD
             {
                 default-toolset = clang ;
             }
diff --git a/test/BoostBuild.py b/test/BoostBuild.py
index 3942c00567..2c0e79e28d 100644
--- a/test/BoostBuild.py
+++ b/test/BoostBuild.py
@@ -105,7 +105,7 @@ def get_toolset():
 
     if sys.platform == "win32":
         return "msvc"
-    if sys.platform == "darwin" or sys.platform.startswith("freebsd"):
+    if sys.platform == "darwin" or sys.platform.startswith("freebsd") or sys.platform.startswith("openbsd"):
         return "clang"
 
     return "gcc"
diff --git a/test/default_toolset.py b/test/default_toolset.py
index 791dad0c41..b7863dfe4e 100755
--- a/test/default_toolset.py
+++ b/test/default_toolset.py
@@ -36,7 +36,7 @@ def test_conditions_on_default_toolset():
     be used by Boost Build.
     """
 
-    t = BoostBuild.Tester("--user-config= --ignore-site-config",
+    t = BoostBuild.Tester(["--user-config=", "--ignore-site-config"],
         pass_toolset=False, use_test_config=False)
 
     toolset_name           = "myCustomTestToolset"
@@ -120,7 +120,7 @@ def test_default_toolset_on_os( os, expected_toolset ):
     important internal Boost Build state.
     """
 
-    t = BoostBuild.Tester("--user-config= --ignore-site-config",
+    t = BoostBuild.Tester(["--user-config=", "--ignore-site-config"],
         pass_toolset=False, use_test_config=False)
 
     t.write("jamroot.jam", "modules.poke os : .name : %s ;" % os)
@@ -128,7 +128,7 @@ def test_default_toolset_on_os( os, expected_toolset ):
     # We need to tell the test system to ignore stderr output as attempting to
     # load missing toolsets might cause random failures with which we are not
     # concerned in this test.
-    t.run_build_system(stderr=None)
+    t.run_build_system(status=None, stderr=None)
     t.expect_output_lines(configuring_default_toolset_message %
         expected_toolset)
 
@@ -146,7 +146,7 @@ def test_default_toolset_requirements():
     """Test that default toolset's requirements get applied correctly.
     """
 
-    t = BoostBuild.Tester("--user-config= --ignore-site-config",
+    t = BoostBuild.Tester(["--user-config=", "--ignore-site-config"],
         pass_toolset=False, use_test_config=False,
         ignore_toolset_requirements=False)
 
@@ -210,6 +210,10 @@ def test_default_toolset_requirements():
 test_default_toolset_on_os("NT"         , "msvc")
 test_default_toolset_on_os("LINUX"      , "gcc" )
 test_default_toolset_on_os("CYGWIN"     , "gcc" )
+test_default_toolset_on_os("MACOSX"     , "clang" )
+test_default_toolset_on_os("FREEBSD"    , "clang" )
+test_default_toolset_on_os("OPENBSD"    , "clang" )
 test_default_toolset_on_os("SomeOtherOS", "gcc" )
-test_default_toolset_requirements()
-test_conditions_on_default_toolset()
+#test_default_toolset_requirements()
+# FIXME: Failure of this test seems to indicate subfeatures matching issue
+#test_conditions_on_default_toolset()
diff --git a/test/test_all.py b/test/test_all.py
index c33e2f231f..24b234f91e 100755
--- a/test/test_all.py
+++ b/test/test_all.py
@@ -285,8 +285,7 @@ def reorder_tests(tests, first_test):
 #         "debugger-mi",
          "default_build",
          "default_features",
-# This test is known to be broken itself.
-#         "default_toolset",
+         "default_toolset",
          "dependency_property",
          "dependency_test",
          "disambiguation",