build: gRPC link to bundled OpenSSL

Signed-off-by: Lorenzo Fontana <fontanalorenz@gmail.com>

cmake/modules/OpenSSL.cmake

@@ -35,7 +35,7 @@ else()
     URL "https://github.com/openssl/openssl/archive/OpenSSL_1_0_2n.tar.gz"
     URL_HASH "SHA256=4f4bc907caff1fee6ff8593729e5729891adcee412049153a3bb4db7625e8364"
     # END CHANGE for CVE-2017-3735, CVE-2017-3731, CVE-2017-3737, CVE-2017-3738, CVE-2017-3736
-    CONFIGURE_COMMAND ./config shared --prefix=${OPENSSL_INSTALL_DIR}
+    CONFIGURE_COMMAND ./config no-shared --prefix=${OPENSSL_INSTALL_DIR}
     BUILD_COMMAND ${CMD_MAKE}
     BUILD_IN_SOURCE 1
     INSTALL_COMMAND ${CMD_MAKE} install)

cmake/modules/gRPC.cmake

@@ -116,11 +116,14 @@ else()
     BUILD_BYPRODUCTS ${GRPC_LIB} ${GRPCPP_LIB}
     INSTALL_COMMAND ""
     CONFIGURE_COMMAND ""
+    PATCH_COMMAND patch -p1 -i ${CMAKE_CURRENT_SOURCE_DIR}/cmake/modules/patch/grpc.patch
     BUILD_COMMAND
       CFLAGS=-Wno-implicit-fallthrough
       HAS_SYSTEM_ZLIB=false
       HAS_SYSTEM_PROTOBUF=false
       HAS_SYSTEM_CARES=false
+      HAS_EMBEDDED_OPENSSL_ALPN=false
+      HAS_SYSTEM_OPENSSL_ALPN=true
       PKG_CONFIG_PATH=${OPENSSL_BUNDLE_DIR}
       PKG_CONFIG=${PKG_CONFIG_EXECUTABLE}
       PATH=${PROTOC_DIR}:$ENV{PATH}

cmake/modules/patch/grpc.patch

@@ -0,0 +1,17 @@
+diff --git a/Makefile b/Makefile
+index dd4ced8112..795f499137 100644
+--- a/Makefile
++++ b/Makefile
+@@ -786,11 +786,10 @@ endif # EMBED_OPENSSL
+ endif # NO_SECURE
+
+ ifeq ($(OPENSSL_PKG_CONFIG),true)
+-LDLIBS_SECURE += $(shell $(PKG_CONFIG) --libs-only-l openssl)
++LDLIBS_SECURE += $(shell $(PKG_CONFIG) --static --libs openssl)
+ else
+ LDLIBS_SECURE += $(addprefix -l, $(LIBS_SECURE))
+ endif
+-
+ # gpr .pc file
+ PC_NAME = gpr
+ PC_DESCRIPTION = gRPC platform support library