Move emscripten SCons tools into emscripten/scons-tools/

1 files changed, 26 insertions, 0 deletions

diff --git a/scons-tools/llvm.py b/scons-tools/llvm.py
new file mode 100755
index 00000000..2e03caa3
--- /dev/null
+++ b/scons-tools/llvm.py
@@ -0,0 +1,26 @@
+from SCons.Scanner.Prog import scan
+from SCons.Builder import Builder
+
+def exists(env):
+    return True
+
+def add_libraries(target, source, env):
+    unique = []
+    lib_nodes = set()
+    for x in scan(None, env, tuple(map(env.Dir, env['LIBPATH']))):
+        if x in lib_nodes:
+            continue
+        lib_nodes.add(x)
+        unique.append(x)
+    return (target, source + unique)
+
+def generate(env):
+    env['BUILDERS']['LLVMDis'] = Builder(
+        action='${LLVM_ROOT}/llvm-dis -o=$TARGET $SOURCE')
+
+    env['BUILDERS']['LLVMOpt'] = Builder(
+        action='${LLVM_ROOT}/opt $LLVM_OPT_FLAGS $LLVM_OPT_PASSES -o=$TARGET $SOURCE')
+
+    env['BUILDERS']['LLVMLink'] = Builder(
+        action='${LLVM_ROOT}/llvm-link -o=$TARGET $SOURCES',
+        emitter=add_libraries)