diff --git a/compiler/parser/common.cpp b/compiler/parser/common.cpp
index afe47719..0e5eb703 100644
--- a/compiler/parser/common.cpp
+++ b/compiler/parser/common.cpp
@@ -209,12 +209,12 @@ shared_ptr<ImportFile> getImportFile(const string &argv0, const string &what,
   auto getStdLibPaths = [](const string &argv0) {
     vector<string> paths;
     char abs[PATH_MAX + 1];
-    if (auto c = getenv("SEQ_PATH")) {
+    if (auto c = getenv("CODON_PATH")) {
       if (realpath(c, abs))
         paths.push_back(abs);
     }
     if (!argv0.empty())
-      for (auto loci : {"../lib/seq/stdlib", "../stdlib", "stdlib"}) {
+      for (auto loci : {"../lib/codon/stdlib", "../stdlib", "stdlib"}) {
         strncpy(abs, executable_path(argv0.c_str()).c_str(), PATH_MAX);
         if (realpath(format("{}/{}", dirname(abs), loci).c_str(), abs))
           paths.push_back(abs);
diff --git a/compiler/sir/llvm/llvisitor.cpp b/compiler/sir/llvm/llvisitor.cpp
index bd613f6b..805a1bd6 100644
--- a/compiler/sir/llvm/llvisitor.cpp
+++ b/compiler/sir/llvm/llvisitor.cpp
@@ -14,7 +14,7 @@
 #define STR_HELPER(x) #x
 #define STR(x) STR_HELPER(x)
 #define SEQ_VERSION_STRING()                                                           \
-  ("codon version " STR(SEQ_VERSION_MAJOR) "." STR(SEQ_VERSION_MINOR) "." STR(          \
+  ("codon version " STR(SEQ_VERSION_MAJOR) "." STR(SEQ_VERSION_MINOR) "." STR(         \
       SEQ_VERSION_PATCH))
 
 extern "C" void seq_gc_add_roots(void *start, void *end);
@@ -486,8 +486,8 @@ void LLVMVisitor::writeToExecutable(const std::string &filename,
     command.push_back("-l" + lib);
   }
   std::vector<std::string> extraArgs = {"-lcodonrt", "-lomp", "-lpthread", "-ldl",
-                                        "-lz",     "-lm",   "-lc",       "-o",
-                                        filename,  objFile};
+                                        "-lz",       "-lm",   "-lc",       "-o",
+                                        filename,    objFile};
   for (const auto &arg : extraArgs) {
     command.push_back(arg);
   }
diff --git a/runtime/lib.cpp b/runtime/lib.cpp
index 673f01e5..20b3caff 100644
--- a/runtime/lib.cpp
+++ b/runtime/lib.cpp
@@ -57,6 +57,14 @@ SEQ_FUNC void seq_init(int d) {
   debug = d;
 }
 
+SEQ_FUNC bool seq_is_macos() {
+#ifdef __APPLE__
+  return true;
+#else
+  return false;
+#endif
+}
+
 SEQ_FUNC seq_int_t seq_pid() { return (seq_int_t)getpid(); }
 
 SEQ_FUNC seq_int_t seq_time() {