Make OS/X more explicit, to avoid questions

[openssl.git] / INSTALL

diff --git a/INSTALL b/INSTALL
index c0163a9371daf9cd7a4ba052381fcc51f5732d26..77de5703ab13d3e2f2fb9d1f4a843079a835a566 100644 (file)
--- a/INSTALL
+++ b/INSTALL
@@ -2,7 +2,7 @@
  --------------------
 
  This document describes installation on all supported operating
- systems (the Linux/Unix family, OpenVMS and Windows)
+ systems (the Linux/Unix family including Mac OS/X, OpenVMS and Windows)
 
  To install OpenSSL, you will need:
 
@@ -76,7 +76,7 @@
 
  If you want to just get on with it, do:
 
-  on Unix:
+  on Unix (again, this includes Mac OS/X):
 
     $ ./config
     $ make
@@ -224,7 +224,8 @@
                    os:         Use a trusted operating system entropy source.
                                This is the default method if such an entropy
                                source exists.
-                   getrandom:  Use the L<getrandom(2)> system call if available.
+                   getrandom:  Use the L<getrandom(2)> or equivalent system
+                               call.
                    devrandom:  Use the the first device from the DEVRANDOM list
                                which can be opened to read random bytes. The
                                DEVRANDOM preprocessor constant expands to
@@ -335,8 +336,13 @@
 
   enable-ec_nistp_64_gcc_128
                    Enable support for optimised implementations of some commonly
-                   used NIST elliptic curves. This is only supported on some
-                   platforms.
+                   used NIST elliptic curves.
+                   This is only supported on platforms:
+                   - with little-endian storage of non-byte types
+                   - that tolerate misaligned memory references
+                   - where the compiler:
+                     - supports the non-standard type __uint128_t
+                     - defines the built-in macro __SIZEOF_INT128__
 
   enable-egd
                    Build support for gathering entropy from EGD (Entropy