package/libeXosip2: fix build for static linking

configure: use pkg-config to find openssl

The current check is broken for static linking, since the openssl

libs need to be linked against libz, which is missing in the link

command when doing a static build:

    http://autobuild.buildroot.net/results/787/787cd9992b00d8008641af208f5fb7c4afb40b06/build-end.log

Instead of trying convoluted tests to decide what additional libs

are required, just delegate this job to pkg-config.

At the same time, fix a few legacy, deprecated constructs in favour

of their new counterparts.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>

---

Upstream status: submitted, but no public mailing list (sent to the

mail documented in: http://www.antisip.com/doc/exosip2/index.html )

diff -durN libeXosip2-3.6.0.orig/configure.in libeXosip2-3.6.0/configure.in

--- libeXosip2-3.6.0.orig/configure.in	2014-06-22 23:58:26.549487427 +0200

+++ libeXosip2-3.6.0/configure.in	2014-06-22 23:59:12.822008499 +0200

@@ -44,7 +44,7 @@

 AC_CONFIG_AUX_DIR(scripts)

 AC_CONFIG_HEADERS(config.h)

 AM_INIT_AUTOMAKE($PACKAGE, $VERSION)

-AM_ACLOCAL_INCLUDE(scripts)

+AC_CONFIG_MACRO_DIR([scripts])

 AC_CANONICAL_HOST

@@ -371,13 +371,15 @@

 AC_ARG_ENABLE(openssl,

 	[  --enable-openssl        enable support for openssl],

-	enable_openssl=$enableval,enable_openssl="yes")

+	enable_openssl=$enableval,enable_openssl="auto")

-if test "$enable_openssl" = "yes" ; then

-	AC_CHECK_HEADERS(openssl/ssl.h)

-	AC_CHECK_LIB(ssl,SSL_CTX_new,[EXOSIP_LIB="$EXOSIP_LIB -lssl"])

-	AC_CHECK_LIB(crypto,X509_get_issuer_name,[EXOSIP_LIB="$EXOSIP_LIB -lcrypto"])

-fi

+AS_IF([test "$enable_openssl" = "yes" -o "$enable_openssl" = "auto"],

+      [PKG_CHECK_MODULES([SSL], [openssl],

+                         [EXOSIP_LIB="$EXOSIP_LIB $SSL_LIBS"],

+                         [AS_IF([test "$enable_openssl" = "yes"],

+                                [AC_MSG_ERROR([can not find openssl])])

+                         ])

+      ])

 AC_ARG_ENABLE(srvrec,

 	[  --enable-srvrec         enable support for SRV records DNS queries (yes) ],

diff -durN build/libeXosip2-3.6.0.orig/Makefile.am build/libeXosip2-3.6.0/Makefile.am

--- libeXosip2-3.6.0.orig/Makefile.am	2014-06-23 00:14:25.328226745 +0200

+++ libeXosip2-3.6.0/Makefile.am	2014-06-23 00:14:38.296371236 +0200

@@ -1,4 +1,4 @@

-

+ACLOCAL_AMFLAGS = -I scripts

 EXTRA_DIST = README autogen.sh

 SUBDIRS = scripts platform src include tools help

LIBEXOSIP2_DEPENDENCIES = host-pkgconf libosip2

# We are touching configure.in and Makefile.am with one of our patches

LIBEXOSIP2_AUTORECONF = YES

ifeq ($(BR2_arc),y)

# toolchain __arc__ define conflicts with libeXosip2 source

LIBEXOSIP2_CONF_ENV += CFLAGS="$(TARGET_CFLAGS) -U__arc__"