_GNU_SOURCE needs to be defined before any standard header.

[openssl.git] / FAQ

diff --git a/FAQ b/FAQ
index dab94a0359c80602b2ee26d876c9802442ea527e..f3eeccd05607287ebbf5d4dff3f25f93f83a226c 100644 (file)
--- a/FAQ
+++ b/FAQ
@@ -46,6 +46,7 @@ OpenSSL  -  Frequently Asked Questions
 * Why does the OpenSSL test suite fail on MacOS X?
 * Why does the OpenSSL test suite fail in BN_sqr test [on a 64-bit platform]?
 * Why does OpenBSD-i386 build fail on des-586.s with "Unimplemented segment type"?
+* Why does the OpenSSL test suite fail in sha512t on x86 CPU?
 
 [PROG] Questions about programming with OpenSSL
 
@@ -70,7 +71,7 @@ OpenSSL  -  Frequently Asked Questions
 * Which is the current version of OpenSSL?
 
 The current version is available from <URL: http://www.openssl.org>.
-OpenSSL 0.9.7f was released on March 22, 2005.
+OpenSSL 0.9.7g was released on April 11, 2005.
 
 In addition to the current stable release, you can also access daily
 snapshots of the OpenSSL development version at <URL:
@@ -598,6 +599,14 @@ Reportedly elder *BSD a.out platforms also suffer from this problem and
 remedy should be same. Provided binary is statically linked and should be
 working across wider range of *BSD branches, not just OpenBSD.
 
+* Why does the OpenSSL test suite fail in sha512t on x86 CPU?
+
+If the test program in question fails withs SIGILL, Illegal Instruction
+exception, then you more than likely to run SSE2-capable CPU, such as
+Intel P4, under control of kernel which does not support SSE2
+instruction extentions. See accompanying INSTALL file and
+OPENSSL_ia32cap(3) documentation page for further information.
+
 [PROG] ========================================================================
 
 * Is OpenSSL thread-safe?
@@ -652,6 +661,17 @@ by:
 Note that debug and release libraries are NOT interchangeable.  If you
 built OpenSSL with /MD your application must use /MD and cannot use /MDd.
 
+As per 0.9.8 the above limitation is eliminated for .DLLs. OpenSSL
+.DLLs compiled with some specific run-time option [we recommend the
+default /MD] can be deployed with application compiled with different
+option or even different compiler. But there is a catch! Instead of
+re-compiling OpenSSL toolkit, as you would have to with prior versions,
+you have to compile small C snippet with compiler and/or options of
+your choice. The snippet gets installed as
+<install-root>/include/openssl/applink.c and should be either added to
+your project or simply #include-d in one [and only one] of your source
+files. Failure to do either manifests itself as fatal "no
+OPENSSL_Applink" error.
 
 * How do I read or write a DER encoded buffer using the ASN1 functions?