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-rw-r--r--mingw-posix.patch22
1 files changed, 22 insertions, 0 deletions
diff --git a/mingw-posix.patch b/mingw-posix.patch
new file mode 100644
index 000000000000..4e8adc641c90
--- /dev/null
+++ b/mingw-posix.patch
@@ -0,0 +1,22 @@
+diff --git a/scons/llvm.py b/scons/llvm.py
+index a84ad51..8ef7a84 100644
+--- a/scons/llvm.py
++++ b/scons/llvm.py
+@@ -32,6 +32,7 @@ import os.path
+ import re
+ import sys
+ import distutils.version
++import subprocess
+
+ import SCons.Errors
+ import SCons.Util
+@@ -123,7 +124,8 @@ def generate(env):
+ if env['platform'] == 'windows' and env['crosscompile']:
+ # LLVM 5.0 requires MinGW w/ pthreads due to use of std::thread and friends.
+ assert env['gcc']
+- env['CXX'] = env['CXX'] + '-posix'
++ if subprocess.call(env['CXX'] + '-posix -v', shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE) == 0:
++ env['CXX'] = env['CXX'] + '-posix'
+ elif llvm_version >= distutils.version.LooseVersion('4.0'):
+ env.Prepend(LIBS = [
+ 'LLVMX86Disassembler', 'LLVMX86AsmParser',