Issue #15172: Document NASM 2.10+ as requirement for building OpenSSL 1.0.1 on Windows
diff --git a/PCbuild/readme.txt b/PCbuild/readme.txt
index 2efe249..89fca3e 100644
--- a/PCbuild/readme.txt
+++ b/PCbuild/readme.txt
@@ -152,9 +152,12 @@
You can (theoretically) use any version of OpenSSL you like - the
build process will automatically select the latest version.
- You must install the NASM assembler from
+ You must install the NASM assembler 2.10 or newer from
http://nasm.sf.net
- for x86 builds. Put nasmw.exe anywhere in your PATH.
+ for x86 builds. Put nasmw.exe anywhere in your PATH. More recent
+ versions of OpenSSL may need a later version of NASM. If OpenSSL's self
+ tests don't pass, you should first try to update NASM and do a full
+ rebuild of OpenSSL.
Note: recent releases of nasm only have nasm.exe. Just rename it to
nasmw.exe.