DOC: add URLs to optional libraries in the README
It's nice to suggest people how to build with certain libraries but
it's nicer to tell them where to fetch them.
diff --git a/README b/README
index eb8f139..31da6bc 100644
--- a/README
+++ b/README
@@ -87,6 +87,9 @@
Warning! group references on Solaris seem broken. Use static-pcre whenever
possible.
+If your system doesn't provide PCRE, you are encouraged to download it from
+http://www.pcre.org/ and build it yourself, it's fast and easy.
+
Recent systems can resolve IPv6 host names using getaddrinfo(). This primitive
is not present in all libcs and does not work in all of them either. Support in
glibc was broken before 2.3. Some embedded libs may not properly work either,
@@ -104,6 +107,12 @@
build fails due to missing symbols such as deflateInit(), then try again with
"ADDLIB=-lz".
+Your are strongly encouraged to always use an up-to-date version of OpenSSL, as
+found on https://www.openssl.org/ as vulnerabilities are occasionally found and
+you don't want them on your systems. HAProxy is known to build correctly on all
+currently supported branches (0.9.8, 1.0.0, 1.0.1 and 1.0.2 at the time of
+writing). Branch 1.0.2 is recommended for the richest features.
+
To link OpenSSL statically against haproxy, build OpenSSL with the no-shared
keyword and install it to a local directory, so your system is not affected :
@@ -116,12 +125,16 @@
$ make TARGET=linux26 USE_OPENSSL=1 SSL_INC=$STATICLIBSSL/include SSL_LIB=$STATICLIBSSL/lib ADDLIB=-ldl
-It is also possible to include native support for ZLIB to benefit from HTTP
+It is also possible to include native support for zlib to benefit from HTTP
compression. For this, pass "USE_ZLIB=1" on the "make" command line and ensure
that zlib is present on the system. Alternatively it is possible to use libslz
for a faster, memory less, but slightly less efficient compression, by passing
"USE_SLZ=1".
+Zlib is commonly found on most systems, otherwise updates can be retrieved from
+http://www.zlib.net/. It is easy and fast to build. Libslz can be downloaded
+from http://1wt.eu/projects/libslz/ and is even easier to build.
+
By default, the DEBUG variable is set to '-g' to enable debug symbols. It is
not wise to disable it on uncommon systems, because it's often the only way to
get a complete core when you need one. Otherwise, you can set DEBUG to '-s' to