Drop all uses of python2 from lit tests

0001-CMake-Don-t-prefer-python2.7.patch

@@ -0,0 +1,27 @@
+From 1e0f1c5481a96d760f7840d4dde103353a0131f8 Mon Sep 17 00:00:00 2001
+From: Tom Stellard <tstellar@redhat.com>
+Date: Thu, 30 Aug 2018 11:38:51 -0700
+Subject: [PATCH] CMake: Don't prefer python2.7
+
+---
+ CMakeLists.txt | 4 ----
+ 1 file changed, 4 deletions(-)
+
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 31df640..2603f1c 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -613,10 +613,6 @@ message(STATUS "LLVM default target triple: ${LLVM_DEFAULT_TARGET_TRIPLE}")
+ 
+ include(HandleLLVMOptions)
+ 
+-# Verify that we can find a Python 2 interpreter.  Python 3 is unsupported.
+-# FIXME: We should support systems with only Python 3, but that requires work
+-# on LLDB.
+-set(Python_ADDITIONAL_VERSIONS 2.7)
+ include(FindPythonInterp)
+ if( NOT PYTHONINTERP_FOUND )
+   message(FATAL_ERROR
+-- 
+1.8.3.1
+

0001-lit-Use-sys.executable-for-executing-builtin-command.patch

@@ -0,0 +1,27 @@
+From 3235c2488c3cd661b4421cc3e4739baefdc80783 Mon Sep 17 00:00:00 2001
+From: Tom Stellard <tstellar@redhat.com>
+Date: Thu, 30 Aug 2018 12:53:56 -0700
+Subject: [PATCH] lit: Use sys.executable for executing builtin commands
+
+The python executable may not exist on all systems so use sys.executable
+instead.
+---
+ utils/lit/lit/TestRunner.py | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/utils/lit/lit/TestRunner.py b/utils/lit/lit/TestRunner.py
+index e304381..4d903b4 100644
+--- a/utils/lit/lit/TestRunner.py
++++ b/utils/lit/lit/TestRunner.py
+@@ -879,7 +879,7 @@ def _executeShCmd(cmd, shenv, results, timeoutHelper):
+         # Expand all glob expressions
+         args = expand_glob_expressions(args, cmd_shenv.cwd)
+         if is_builtin_cmd:
+-            args.insert(0, "python")
++            args.insert(0, sys.executable)
+             args[1] = os.path.join(builtin_commands_dir ,args[1] + ".py")
+ 
+         # On Windows, do our own command line quoting for better compatibility
+-- 
+1.8.3.1
+

llvm.spec

@@ -50,7 +50,7 @@
 
 Name:		%{pkg_name}
 Version:	%{maj_ver}.%{min_ver}.%{patch_ver}
-Release:	0.9.rc%{rc_ver}%{?dist}
+Release:	0.10.rc%{rc_ver}%{?dist}
 Summary:	The Low Level Virtual Machine
 
 License:	NCSA
@@ -64,6 +64,11 @@ Patch7:		0001-Filter-out-cxxflags-not-supported-by-clang.patch
 Patch12:	0001-unittests-Don-t-install-TestPlugin.so.patch
 # rhbz#1618958
 Patch13:	0001-bpf-fix-an-assertion-in-BPFAsmBackend-applyFixup.patch
+# If python2 is available on the system, llvm will try to use it.  This patch
+# removes the preferences for python2, so we can make sure we always use
+# python3.
+Patch14:	0001-CMake-Don-t-prefer-python2.7.patch
+Patch15:	0001-lit-Use-sys.executable-for-executing-builtin-command.patch
 
 BuildRequires:  gcc
 BuildRequires:  gcc-c++
@@ -72,8 +77,6 @@ BuildRequires:	ninja-build
 BuildRequires:	zlib-devel
 BuildRequires:  libffi-devel
 BuildRequires:	ncurses-devel
-# We need /usr/bin/python for some lit tests to work.
-BuildRequires:	python-unversioned-command
 BuildRequires:	python3-sphinx
 BuildRequires:	multilib-rpm-config
 %if %{with gold}
@@ -86,6 +89,8 @@ BuildRequires:  valgrind-devel
 %endif
 # LLVM's LineEditor library will use libedit if it is available.
 BuildRequires:  libedit-devel
+# We need python3-devel for pathfix.py.
+BuildRequires:	python3-devel
 
 Requires:	%{name}-libs%{?_isa} = %{version}-%{release}
 
@@ -150,6 +155,8 @@ LLVM's modified googletest sources.
 %prep
 %autosetup -n llvm-%{version}%{?rc_ver:rc%{rc_ver}}.src -p1
 
+pathfix.py -i %{__python3} -pn test/BugPoint/compile-custom.ll.py
+
 %build
 mkdir -p _build
 cd _build
@@ -410,6 +417,9 @@ fi
 %endif
 
 %changelog
+* Thu Aug 30 2018 Tom Stellard <tstellar@redhat.com> - 7.0.0-0.10.rc2
+- Drop all uses of python2 from lit tests
+
 * Thu Aug 30 2018 Tom Stellard <tstellar@redhat.com> - 7.0.0-0.9.rc2
 - Build the gold plugin on all supported architectures