From ad86a41eeed9f85d74bb50a25fa0bf4515aaf3af Mon Sep 17 00:00:00 2001
From: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Date: Thu, 11 Apr 2019 23:24:36 +0200
Subject: [PATCH] configure.ng: use pkg-config to find PpenSSL dependencies

OpenSSL can depends on lz or latomic so use pkg-config to find those
dependencies and fallback to existing mechanism.

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>

Closes #256.
---
 configure.ng | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/configure.ng b/configure.ng
index 57ae8bb8..899d00f7 100644
--- a/configure.ng
+++ b/configure.ng
@@ -464,8 +464,11 @@ AC_ARG_WITH(openssl,
 				CPPFLAGS="-I$withval/include $CPPFLAGS"
 				LDFLAGS="-L$withval/lib $LDFLAGS"
 			fi
-			AC_CHECK_LIB(crypto, BIO_s_mem)
-			AC_CHECK_LIB(ssl, SSL_new)
+			PKG_CHECK_MODULES([OPENSSL], [libssl libcrypto],
+				[LIBS="$LIBS $OPENSSL_LIBS" CFLAGS="$CFLAGS $OPENSSL_CFLAGS"],
+				[AC_CHECK_LIB(crypto, BIO_s_mem)
+				AC_CHECK_LIB(ssl, SSL_new)]
+			)
 			AC_CHECK_FUNCS(SSL_new, x_ssl_openssl=yes,
 				AC_MSG_ERROR([Can't enable openssl])
 			)
-- 
2.39.2