From 013c7d2009803f67245815724eb2a17139fccda5 Mon Sep 17 00:00:00 2001
From: Ilan Schnell <ilanschnell@gmail.com>
Date: Sat, 16 Feb 2013 10:54:25 -0600
Subject: [PATCH] add impoved version of llvm-config for Windows

---
 llvm-config-win.py | 108 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 108 insertions(+)
 create mode 100644 llvm-config-win.py

diff --git a/llvm-config-win.py b/llvm-config-win.py
new file mode 100644
index 0000000..25dbc43
--- /dev/null
+++ b/llvm-config-win.py
@@ -0,0 +1,108 @@
+import re
+import sys
+from distutils.spawn import find_executable
+from os.path import abspath, dirname, isfile, join
+from subprocess import Popen, PIPE
+
+
+def find_llvm_tblgen():
+    path = find_executable('llvm-tblgen')
+    if path is None:
+        sys.exit('Error: could not locate llvm-tblgen')
+    return path
+
+def find_llvm_prefix():
+    return abspath(dirname(dirname(find_llvm_tblgen())))
+
+def get_llvm_version():
+    args = [find_llvm_tblgen(), '--version']
+    p = Popen(args, stdout=PIPE, stderr=PIPE)
+    stdout, stderr = p.communicate()
+    if stderr:
+        raise Exception("%r stderr is:\n%s" % (args, stderr.decode()))
+    out = stdout.decode().strip()
+    pat = re.compile(r'llvm\s+version\s+(\d+\.\d+\S*)', re.I)
+    m = pat.search(out)
+    if m is None:
+        sys.exit('Error: could not parse version in:' + out)
+    return m.group(1)
+
+def main():
+    try:
+        option = sys.argv[1]
+    except IndexError:
+        sys.exit('Error: option missing')
+
+    if option == '--version':
+        print(get_llvm_version())
+
+    elif option == '--libs':
+        # NOTE: instead of actually looking at the components requested,
+        #       we just print out a bunch of libs
+        for lib in """
+LLVMAnalysis
+LLVMAsmParser
+LLVMAsmPrinter
+LLVMBitReader
+LLVMBitWriter
+LLVMCodeGen
+LLVMCore
+LLVMExecutionEngine
+LLVMInstCombine
+LLVMInstrumentation
+LLVMInterpreter
+LLVMipa
+LLVMipo
+LLVMJIT
+LLVMLinker
+LLVMMC
+LLVMMCParser
+LLVMObject
+LLVMRuntimeDyld
+LLVMScalarOpts
+LLVMSelectionDAG
+LLVMSupport
+LLVMTarget
+LLVMTransformUtils
+LLVMVectorize
+LLVMX86AsmParser
+LLVMX86AsmPrinter
+LLVMX86CodeGen
+LLVMX86Desc
+LLVMX86Info
+LLVMX86Utils
+Advapi32
+Shell32
+""".split():
+            print('-l%s' % lib)
+        if isfile(join(find_llvm_prefix(), 'lib', 'LLVMPTXCodeGen.lib')):
+            print('-lLLVMPTXAsmPrinter')
+            print('-lLLVMPTXCodeGen')
+            print('-lLLVMPTXDesc')
+            print('-lLLVMPTXInfo')
+        elif isfile(join(find_llvm_prefix(), 'lib', 'LLVMNVPTXCodeGen.lib')):
+            print('-lLLVMNVPTXAsmPrinter')
+            print('-lLLVMNVPTXCodeGen')
+            print('-lLLVMNVPTXDesc')
+            print('-lLLVMNVPTXInfo')
+
+    elif option == '--includedir':
+        incdir = join(find_llvm_prefix(), 'include')
+        path = join(incdir, 'llvm' , 'BasicBlock.h')
+        if not isfile(path):
+            sys.exit('Error: no file: %r' % path)
+        print(incdir)
+
+    elif option == '--libdir':
+        libdir = join(find_llvm_prefix(), 'lib')
+        path = join(libdir, ' LLVMCore.lib')
+        if not isfile(path):
+            sys.exit('Error: no file: %r' % path)
+        print(libdir)
+
+    else:
+        sys.exit('Unrecognized llvm-config option %r' % option)
+
+
+if __name__ == '__main__':
+    main()