Check that srtp2 has been detected.

Throw in -latomic when linking both module and librtpproxy.

Author: sobomax

python/build_rtpproxy.sh

@@ -60,6 +60,12 @@ then
   if [ "${ARCH}" = "i386" ]
   then
     OPENSSL_CONFIGURE_ARGS="linux-x86"
+    if [ -z "${SRTP_LIBS}" ]
+    then
+      export LIB_CRYPTO_STATIC="-l:libcrypto.a -lpthread -latomic"
+    else
+      export LIB_CRYPTO_STATIC="-l:libcrypto.a -lpthread ${SRTP_LIBS}"
+    fi
   fi
 fi
 
@@ -109,6 +115,11 @@ fi
 
 CFLAGS="${CFLAGS}" LDFLAGS="${LDFLAGS}" ./configure --enable-static-crypto \
  --enable-librtpproxy --enable-lto --disable-noinst --disable-debug
+if ! grep -q '^#define ENABLE_SRTP2 1' src/config.h
+then
+  grep -C 200 lsrtp2 config.log
+  exit 1
+fi
 for dir in libexecinfo libucl libre external/libelperiodic/src libxxHash modules
 do
   make -C ${dir} all

setup.py

@@ -43,6 +43,8 @@ def main():
         '-Lbuild/lib',
         '-l:libsrtp2.a', '-l:libssl.a', '-l:libcrypto.a',
     ])
+    if 'SRTP_LIBS' in environ:
+        link_args.extend(environ['SRTP_LIBS'].split())
     ext_modules = [
         Extension(
             'rtp.io',