[Support] Fix build under Emscripten
Summary:
Emscripten's libc doesn't define MNT_LOCAL, thus causing a build
failure in the fallback path. However, to the best of my knowledge,
it also doesn't support remote file system mounts, so we may simply
return `true` here (as we do for e.g. Fuchsia). With this fix, the
core LLVM libraries build correctly under emscripten (though some
of the tools and utils do not).
Reviewers: kripken
Differential Revision: https://reviews.llvm.org/D63688
llvm-svn: 364143
diff --git a/llvm/lib/Support/Unix/Path.inc b/llvm/lib/Support/Unix/Path.inc
index 359202f..280624e 100644
--- a/llvm/lib/Support/Unix/Path.inc
+++ b/llvm/lib/Support/Unix/Path.inc
@@ -424,6 +424,9 @@
#elif defined(__Fuchsia__)
// Fuchsia doesn't yet support remote filesystem mounts.
return true;
+#elif defined(__EMSCRIPTEN__)
+ // Emscripten doesn't currently support remote filesystem mounts.
+ return true;
#elif defined(__HAIKU__)
// Haiku doesn't expose this information.
return false;