[clang] [llvm] [llvm][clang] Allocate a new stack instead of spawning a new thread to get more stack space (PR #133173)

[Reid Kleckner via llvm-commits]

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@@ -52,6 +56,7 @@ else()
   check_include_file(mach/mach.h HAVE_MACH_MACH_H)
   check_include_file(malloc/malloc.h HAVE_MALLOC_MALLOC_H)
   check_include_file(pthread.h HAVE_PTHREAD_H)
+  check_include_file(sys/resource.h HAVE_SYS_RESOURCE_H)
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rnk wrote:

Do we need this? We already unconditionally include `sys/resource.h` from llvm/Support/Unix/Program.inc. IMO it would be better to do `#ifndef _WIN32` than the config check, which slows down configuration and complicates the build system, and has to be ported over to downstream build systems like gn and Bazel.

https://github.com/llvm/llvm-project/pull/133173