doc/man1/x509.pod: fix typo

[openssl.git] / INSTALL

diff --git a/INSTALL b/INSTALL
index 049ff21f5cc8697d755572c0a6555349aa99e2ae..2fd2235d14ed7ee7600e0cc790764c2c17f93677 100644 (file)
--- a/INSTALL
+++ b/INSTALL
@@ -416,6 +416,24 @@
   no-pic
                    Don't build with support for Position Independent Code.
 
+  no-pinshared     By default OpenSSL will attempt to stay in memory until the
+                   process exits. This is so that libcrypto and libssl can be
+                   properly cleaned up automatically via an "atexit()" handler.
+                   The handler is registered by libcrypto and cleans up both
+                   libraries. On some platforms the atexit() handler will run on
+                   unload of libcrypto (if it has been dynamically loaded)
+                   rather than at process exit. This option can be used to stop
+                   OpenSSL from attempting to stay in memory until the process
+                   exits. This could lead to crashes if either libcrypto or
+                   libssl have already been unloaded at the point
+                   that the atexit handler is invoked, e.g. on a platform which
+                   calls atexit() on unload of the library, and libssl is
+                   unloaded before libcrypto then a crash is likely to happen.
+                   Applications can suppress running of the atexit() handler at
+                   run time by using the OPENSSL_INIT_NO_ATEXIT option to
+                   OPENSSL_init_crypto(). See the man page for it for further
+                   details.
+
   no-posix-io
                    Don't use POSIX IO capabilities.