From fa42be30ae59519c80e8f0d524bc7d841a239fd3 Mon Sep 17 00:00:00 2001
From: Kevin Easton <keaston@users.sourceforge.net>
Date: Thu, 31 May 2012 12:40:26 +0000
Subject: [PATCH] Change configure.in to enable SSL by default, if libssl is
 present.  Can still be disabled with --without-ssl.

git-svn-id: svn://svn.code.sf.net/p/bitchx/code/trunk@201 13b04d17-f746-0410-82c6-800466cd88b0
---
 Changelog         |  2 ++
 configure.in      | 45 +++++++++++++++++++++++++++++++--------------
 include/defs.h.in |  5 ++++-
 3 files changed, 37 insertions(+), 15 deletions(-)

diff --git a/Changelog b/Changelog
index 59d2129..e4f6f21 100644
--- a/Changelog
+++ b/Changelog
@@ -1,5 +1,7 @@
 [Changes 1.2c01]
 
+* Enable SSL support by default, if OpenSSL is present at build time. (caf)
+
 * Fix leak and potential crash in lame_resolv() using IPv6.  (caf, snadge)
 
 * Apply patch from snadge defining BIND_4_COMPAT on OpenBSD, to allow
diff --git a/configure.in b/configure.in
index 9ca98ad..2545bd1 100644
--- a/configure.in
+++ b/configure.in
@@ -537,27 +537,44 @@ AC_MSG_RESULT(no)
 dnl Check for SSL support.
 AC_MSG_CHECKING(whether to enable SSL support)
 AC_ARG_WITH(ssl,
-[  --with-ssl=PFX          Enable SSL support (Prefix is optional)],
-[ case "$withval" in
+[[  --with-ssl[=PATH]       Enable SSL support (enabled by default if OpenSSL found)]],
+[], [with_ssl=check])
+
+case "$with_ssl" in
     yes)
       AC_MSG_RESULT(yes)
-      AC_DEFINE(HAVE_SSL, 1, Define this is the system has SSL support.)
-      LIBS="$LIBS -lssl -lcrypto"
-      AC_CHECK_LIB(ssl, SSL_accept,,AC_MSG_ERROR(Could not find OpenSSL.))
+      ;;
+    check)
+      AC_MSG_RESULT(if available)
       ;;
     no)
       AC_MSG_RESULT(no)
       ;;
     *)
       AC_MSG_RESULT(yes)
-      AC_DEFINE(HAVE_SSL, 1, Define this is the system has SSL support.)
-      LIBS="$LIBS -L${withval}/lib -lssl -lcrypto"
-      CFLAGS="$CFLAGS -I${withval}/include"
-      AC_CHECK_LIB(ssl, SSL_accept,,AC_MSG_ERROR(Could not find OpenSSL.))
+      CFLAGS="$CFLAGS -I${with_ssl}/include"
+      LDFLAGS="$LDFLAGS -L${with_ssl}/lib"
+      with_ssl=yes
       ;;
-  esac ],
-AC_MSG_RESULT(no)
-)
+esac
+case "$with_ssl" in
+    yes|check)
+      AC_CHECK_LIB([crypto], [SSLeay], [], [], [])
+      if test x"$ac_cv_lib_crypto_SSLeay" = x"yes"; then
+        AC_CHECK_LIB([ssl], [SSL_accept], [], [], [])
+      fi
+      if test x"$ac_cv_lib_ssl_SSL_accept" = x"yes"; then
+        dnl This would be unnecessary if we used HAVE_LIBSSL in the code
+        AC_DEFINE(HAVE_SSL, 1, Define this if the system has SSL support.)
+      else
+        if test x"$with_ssl" = x"yes"; then
+          AC_MSG_FAILURE([--with-ssl given, but could not find OpenSSL.])
+        else
+          AC_MSG_WARN([OpenSSL not found, will not have SSL support.])
+        fi
+      fi
+      ;;
+esac
 
 dnl Now that we've checked for PM and GTK support, make sure
 dnl that we "#define GUI" and and that we don't build wserv or
@@ -920,9 +937,9 @@ AC_MSG_RESULT(no)
 dnl Check for plugin support and which plugins to build.
 AC_MSG_CHECKING(whether to enable plugin support)
 AC_ARG_WITH(plugins,
-[  --with-plugins[=LIST]     Enable plugin support
+[[  --with-plugins[=LIST]   Enable plugin support
                           LIST is a comma separated list of plugins to build
-                          If none are specified, all available plugins are built],
+                          If none are specified, all available plugins are built]],
 [ case "$withval" in
     yes | all)
       AC_MSG_RESULT(yes)
diff --git a/include/defs.h.in b/include/defs.h.in
index fee95a3..02d1568 100644
--- a/include/defs.h.in
+++ b/include/defs.h.in
@@ -129,6 +129,9 @@
 /* Define to 1 if you have the `killpg' function. */
 #undef HAVE_KILLPG
 
+/* Define to 1 if you have the `crypto' library (-lcrypto). */
+#undef HAVE_LIBCRYPTO
+
 /* Define to 1 if you have the Windows iphlpapi library */
 #undef HAVE_LIBIPHLPAPI
 
@@ -204,7 +207,7 @@
 /* Define to 1 if you have the `socket' function. */
 #undef HAVE_SOCKET
 
-/* Define this is the system has SSL support. */
+/* Define this if the system has SSL support. */
 #undef HAVE_SSL
 
 /* Define to 1 if you have the <stdint.h> header file. */