vendor/llvm/llvm-r126079

1 files changed, 16 insertions, 0 deletions

diff --git a/lib/Support/Unix/README.txt b/lib/Support/Unix/README.txt
new file mode 100644
index 0000000000000..3d547c2990d59
--- /dev/null
+++ b/lib/Support/Unix/README.txt
@@ -0,0 +1,16 @@
+llvm/lib/Support/Unix README
+===========================
+
+This directory provides implementations of the lib/System classes that
+are common to two or more variants of UNIX. For example, the directory
+structure underneath this directory could look like this:
+
+Unix           - only code that is truly generic to all UNIX platforms
+  Posix        - code that is specific to Posix variants of UNIX
+  SUS          - code that is specific to the Single Unix Specification
+  SysV         - code that is specific to System V variants of UNIX
+
+As a rule, only those directories actually needing to be created should be
+created. Also, further subdirectories could be created to reflect versions of
+the various standards. For example, under SUS there could be v1, v2, and v3
+subdirectories to reflect the three major versions of SUS.