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1 files changed, 5 insertions, 4 deletions
diff --git a/CHANGES b/CHANGES
index bf56c1e586..0789cd2fa6 100644
--- a/CHANGES
+++ b/CHANGES
@@ -7,11 +7,12 @@
*) Add optional 64-bit optimized implementations of elliptic curves NIST-P224,
NIST-P256, NIST-P521, with constant-time single point multiplication on
typical inputs. Compiler support for the nonstandard type __uint128_t is
- required to use this. Code made available under Apache License version 2.0.
+ required to use this (present in gcc 4.4 and later, for 64-bit builds).
+ Code made available under Apache License version 2.0.
- To include this in your build of OpenSSL, use -DEC_NISTP_64_GCC_128 on
- the Configure (or config) command line, and run "make depend" (or "make
- update"). This enables the following EC_METHODs:
+ Specify "enable-ec_nistp_64_gcc_128" on the Configure (or config) command
+ line to include this in your build of OpenSSL, and run "make depend" (or
+ "make update"). This enables the following EC_METHODs:
EC_GFp_nistp224_method()
EC_GFp_nistp256_method()