bitcore-node-zcash/etc/bitcoin.patch

diff --git a/config_me.sh b/config_me.sh
new file mode 100644
index 0000000..19e9a1b
--- /dev/null
+++ b/config_me.sh
@@ -0,0 +1 @@
+./configure --enable-tests=no --enable-daemonlib --with-gui=no --without-qt --without-miniupnpc --without-bdb --enable-debug --disable-wallet --without-utils
diff --git a/configure.ac b/configure.ac
index 37fe47e..83cfe70 100644
--- a/configure.ac
+++ b/configure.ac
@@ -119,6 +119,12 @@ AC_ARG_ENABLE([reduce-exports],
   [use_reduce_exports=$enableval],
   [use_reduce_exports=no])

+AC_ARG_ENABLE([daemonlib],
+  [AS_HELP_STRING([--enable-daemonlib],
+  [compile all of bitcoind as a library (default is no)])],
+  [use_daemonlib=$enableval],
+  [use_daemonlib=no])
+
 AC_ARG_ENABLE([ccache],
   [AS_HELP_STRING([--enable-ccache],
   [use ccache for building (default is yes if ccache is found)])],
@@ -402,6 +408,9 @@ fi
 if test x$use_hardening != xno; then
   AX_CHECK_COMPILE_FLAG([-Wstack-protector],[HARDENED_CXXFLAGS="$HARDENED_CXXFLAGS -Wstack-protector"])
   AX_CHECK_COMPILE_FLAG([-fstack-protector-all],[HARDENED_CXXFLAGS="$HARDENED_CXXFLAGS -fstack-protector-all"])
+  if test x$use_daemonlib = xno; then
+    AX_CHECK_COMPILE_FLAG([-fPIE],[HARDENED_CXXFLAGS="$HARDENED_CXXFLAGS -fPIE"])
+  fi

   AX_CHECK_PREPROC_FLAG([-D_FORTIFY_SOURCE=2],[
     AX_CHECK_PREPROC_FLAG([-U_FORTIFY_SOURCE],[
@@ -415,7 +424,7 @@ if test x$use_hardening != xno; then
   AX_CHECK_LINK_FLAG([[-Wl,-z,relro]], [HARDENED_LDFLAGS="$HARDENED_LDFLAGS -Wl,-z,relro"])
   AX_CHECK_LINK_FLAG([[-Wl,-z,now]], [HARDENED_LDFLAGS="$HARDENED_LDFLAGS -Wl,-z,now"])

-  if test x$TARGET_OS != xwindows; then
+  if test x$TARGET_OS != xwindows -a x$use_daemonlib = xno; then
     # All windows code is PIC, forcing it on just adds useless compile warnings
     AX_CHECK_COMPILE_FLAG([-fPIE],[HARDENED_CXXFLAGS="$HARDENED_CXXFLAGS -fPIE"])
     AX_CHECK_LINK_FLAG([[-pie]], [HARDENED_LDFLAGS="$HARDENED_LDFLAGS -pie"])
@@ -433,6 +442,17 @@ if test x$use_hardening != xno; then
   OBJCXXFLAGS="$CXXFLAGS"
 fi

+AC_DEFINE([ENABLE_DAEMONLIB],[0],[Enable daemonlib.])
+AM_CONDITIONAL([ENABLE_DAEMONLIB],[false])
+if test x$use_daemonlib != xno; then
+  AX_CHECK_COMPILE_FLAG([-fPIC],[DAEMONLIB_CXXFLAGS="$DAEMONLIB_CXXFLAGS -fPIC"])
+  AC_DEFINE([ENABLE_DAEMONLIB],[1],[Enable daemonlib.])
+  AM_CONDITIONAL([ENABLE_DAEMONLIB],[true])
+  CXXFLAGS="$CXXFLAGS $DAEMONLIB_CXXFLAGS"
+  CPPFLAGS="$CPPFLAGS $DAEMONLIB_CPPFLAGS"
+  OBJCXXFLAGS="$CXXFLAGS"
+fi
+
 dnl this flag screws up non-darwin gcc even when the check fails. special-case it.
 if test x$TARGET_OS = xdarwin; then
   AX_CHECK_LINK_FLAG([[-Wl,-dead_strip]], [LDFLAGS="$LDFLAGS -Wl,-dead_strip"])
@@ -483,11 +503,18 @@ AC_LINK_IFELSE([AC_LANG_SOURCE([
   ]
 )

-if test x$use_reduce_exports = xyes; then
+if test x$use_reduce_exports = xyes -a x$use_daemonlib = xno; then
   AX_CHECK_COMPILE_FLAG([-fvisibility=hidden],[RE_CXXFLAGS="-fvisibility=hidden"],
   [AC_MSG_ERROR([Cannot set default symbol visibility. Use --disable-reduce-exports.])])
 fi

+AC_MSG_CHECKING([whether to compile as daemonlib])
+if test x$use_daemonlib != xno; then
+  AC_MSG_RESULT([yes])
+else
+  AC_MSG_RESULT([no])
+fi
+
 LEVELDB_CPPFLAGS=
 LIBLEVELDB=
 LIBMEMENV=
diff --git a/src/Makefile.am b/src/Makefile.am
index 1c2f770..ddcae0f 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -1,6 +1,8 @@
 DIST_SUBDIRS = secp256k1
 AM_LDFLAGS = $(PTHREAD_CFLAGS) $(LIBTOOL_LDFLAGS)

+lib_LTLIBRARIES =
+libbitcoind_la_LIBADD =

 if EMBEDDED_LEVELDB
 LEVELDB_CPPFLAGS += -I$(srcdir)/leveldb/include
@@ -15,6 +17,10 @@ $(LIBLEVELDB) $(LIBMEMENV):
 	@echo "Building LevelDB ..." && $(MAKE) -C $(@D) $(@F) CXX="$(CXX)" \
 	  CC="$(CC)" PLATFORM=$(TARGET_OS) AR="$(AR)" $(LEVELDB_TARGET_FLAGS) \
           OPT="$(CXXFLAGS) $(CPPFLAGS) -D__STDC_LIMIT_MACROS"
+
+LIBLEVELDB_SHARED:
+	@echo "Building the LevelDB shared library..." && $(MAKE) -C ./leveldb
+
 endif

 BITCOIN_CONFIG_INCLUDES=-I$(builddir)/config
@@ -49,16 +55,16 @@ BITCOIN_INCLUDES += $(BDB_CPPFLAGS)
 EXTRA_LIBRARIES += libbitcoin_wallet.a
 endif

-if BUILD_BITCOIN_LIBS
-lib_LTLIBRARIES = libbitcoinconsensus.la
-LIBBITCOIN_CONSENSUS=libbitcoinconsensus.la
-else
-LIBBITCOIN_CONSENSUS=
-endif
-
+LIBBITCOIN_CONSENSUS =
 bin_PROGRAMS =
 TESTS =

+if BUILD_BITCOIN_LIBS
+lib_LTLIBRARIES += libbitcoinconsensus.la
+LIBBITCOIN_CONSENSUS += libbitcoinconsensus.la
+endif
+
+if !ENABLE_DAEMONLIB
 if BUILD_BITCOIND
   bin_PROGRAMS += bitcoind
 endif
@@ -66,6 +72,9 @@ endif
 if BUILD_BITCOIN_UTILS
   bin_PROGRAMS += bitcoin-cli bitcoin-tx
 endif
+else
+lib_LTLIBRARIES += libbitcoind.la
+endif

 .PHONY: FORCE
 # bitcoin core #
@@ -169,8 +178,9 @@ obj/build.h: FORCE
 	@$(MKDIR_P) $(builddir)/obj
 	@$(top_srcdir)/share/genbuild.sh $(abs_top_builddir)/src/obj/build.h \
 	  $(abs_top_srcdir)
-libbitcoin_util_a-clientversion.$(OBJEXT): obj/build.h

+libbitcoin_util_a-clientversion.$(OBJEXT): obj/build.h
+clientversion.cpp: obj/build.h
 # server: shared between bitcoind and bitcoin-qt
 libbitcoin_server_a_CPPFLAGS = $(BITCOIN_INCLUDES) $(MINIUPNPC_CPPFLAGS)
 libbitcoin_server_a_SOURCES = \
@@ -309,9 +319,18 @@ nodist_libbitcoin_util_a_SOURCES = $(srcdir)/obj/build.h
 bitcoind_SOURCES = bitcoind.cpp
 bitcoind_CPPFLAGS = $(BITCOIN_INCLUDES)
 bitcoind_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS)
+libbitcoind_la_SOURCES = bitcoind.cpp
+libbitcoind_la_SOURCES += $(libbitcoin_util_a_SOURCES)
+libbitcoind_la_SOURCES += $(libbitcoin_univalue_a_SOURCES)
+libbitcoind_la_SOURCES += $(libbitcoin_crypto_a_SOURCES)
+libbitcoind_la_SOURCES += $(libbitcoin_common_a_SOURCES)
+libbitcoind_la_SOURCES += $(libbitcoin_server_a_SOURCES)
+libbitcoind_la_SOURCES += $(crypto_libbitcoin_crypto_a_SOURCES)
+libbitcoind_la_SOURCES += $(univalue_libbitcoin_univalue_a_SOURCES)

 if TARGET_WINDOWS
 bitcoind_SOURCES += bitcoind-res.rc
+libbitcoind_la_SOURCES += bitcoind-res.rc
 endif

 bitcoind_LDADD = \
@@ -326,9 +345,19 @@ bitcoind_LDADD = \

 if ENABLE_WALLET
 bitcoind_LDADD += libbitcoin_wallet.a
+libbitcoind_la_LIBADD += $(BDB_LIBS)
+libbitcoind_la_SOURCES += $(libbitcoin_wallet_a_SOURCES)
 endif

+MEMOBJ = helpers/memenv/memenv.lo
+$(MEMOBJ):
+	@echo "Building the Memenv shared library..." && $(MAKE) -C ./leveldb $@
+
 bitcoind_LDADD += $(BOOST_LIBS) $(BDB_LIBS) $(SSL_LIBS) $(CRYPTO_LIBS) $(MINIUPNPC_LIBS)
+libbitcoind_la_LIBADD += $(BOOST_LIBS) $(SSL_LIBS) $(LIBSECP256K1) $(CRYPTO_LIBS) leveldb/$(MEMOBJ)
+libbitcoind_la_CPPFLAGS = $(BITCOIN_INCLUDES)
+libbitcoind_la_LDFLAGS = -lleveldb -L./leveldb $(RELDFLAGS) -no-undefined
+libbitcoind_la_DEPENDENCIES = $(LIBSECP256K1) LIBLEVELDB_SHARED $(MEMOBJ)
 #

 # bitcoin-cli binary #
diff --git a/src/bitcoind.cpp b/src/bitcoind.cpp
index cce687a..0f162ff 100644
--- a/src/bitcoind.cpp
+++ b/src/bitcoind.cpp
@@ -33,6 +33,10 @@

 static bool fDaemon;

+#if ENABLE_DAEMONLIB
+extern void WaitForShutdown(boost::thread_group* threadGroup);
+#endif
+
 void WaitForShutdown(boost::thread_group* threadGroup)
 {
     bool fShutdown = ShutdownRequested();
@@ -166,6 +170,7 @@ bool AppInit(int argc, char* argv[])
     return fRet;
 }

+#if !ENABLE_DAEMONLIB
 int main(int argc, char* argv[])
 {
     SetupEnvironment();
@@ -175,3 +180,4 @@ int main(int argc, char* argv[])

     return (AppInit(argc, argv) ? 0 : 1);
 }
+#endif
diff --git a/src/init.h b/src/init.h
index dcb2b29..5ce68ba 100644
--- a/src/init.h
+++ b/src/init.h
@@ -18,6 +18,11 @@ class thread_group;

 extern CWallet* pwalletMain;

+#if ENABLE_DAEMONLIB
+#include <boost/filesystem/path.hpp>
+#include <boost/thread/mutex.hpp>
+#endif
+
 void StartShutdown();
 bool ShutdownRequested();
 void Shutdown();
diff --git a/src/leveldb/Makefile b/src/leveldb/Makefile
index 2bd2cad..490ba66 100644
--- a/src/leveldb/Makefile
+++ b/src/leveldb/Makefile
@@ -103,7 +103,7 @@ check: all $(PROGRAMS) $(TESTS)
 	for t in $(TESTS); do echo "***** Running $$t"; ./$$t || exit 1; done

 clean:
-	-rm -f $(PROGRAMS) $(BENCHMARKS) $(LIBRARY) $(SHARED) $(MEMENVLIBRARY) */*.o */*/*.o ios-x86/*/*.o ios-arm/*/*.o build_config.mk
+	-rm -f $(PROGRAMS) $(BENCHMARKS) $(LIBRARY) $(SHARED) $(MEMENVLIBRARY) */*.o */*/*.lo helpers/memenv/.deps/*.Plo helpers/memenv/.deps/*.Tpo */*/*.o ios-x86/*/*.o ios-arm/*/*.o build_config.mk
 	-rm -rf ios-x86/* ios-arm/*

 $(LIBRARY): $(LIBOBJECTS)
@@ -192,6 +192,10 @@ $(MEMENVLIBRARY) : $(MEMENVOBJECTS)
 	rm -f $@
 	$(AR) -rs $@ $(MEMENVOBJECTS)

+helpers/memenv/memenv.lo: helpers/memenv/memenv.cc
+	-mkdir -p helpers/memenv/.deps
+	/bin/bash ../../libtool  --tag=CXX --mode=compile $(CXX) $(CXXFLAGS) $(CFLAGS) -fPIC -MT $@ -MD -MP -MF helpers/memenv/.deps/memenv.Tpo -c -o $@ $<
+
 memenv_test : helpers/memenv/memenv_test.o $(MEMENVLIBRARY) $(LIBRARY) $(TESTHARNESS)
 	$(CXX) $(LDFLAGS) helpers/memenv/memenv_test.o $(MEMENVLIBRARY) $(LIBRARY) $(TESTHARNESS) -o $@ $(LIBS)

diff --git a/src/leveldbwrapper.h b/src/leveldbwrapper.h
index c65e842..0e44bb5 100644
--- a/src/leveldbwrapper.h
+++ b/src/leveldbwrapper.h
@@ -29,10 +29,16 @@ class CLevelDBBatch
 {
     friend class CLevelDBWrapper;

+#if ENABLE_DAEMONLIB
+public:
+#else
 private:
+#endif
     leveldb::WriteBatch batch;

+#if !ENABLE_DAEMONLIB
 public:
+#endif
     template <typename K, typename V>
     void Write(const K& key, const V& value)
     {
@@ -63,7 +69,11 @@ public:

 class CLevelDBWrapper
 {
+#if ENABLE_DAEMONLIB
+public:
+#else
 private:
+#endif
     //! custom environment this database is using (may be NULL in case of default environment)
     leveldb::Env* penv;

@@ -85,7 +95,9 @@ private:
     //! the database itself
     leveldb::DB* pdb;

+#if !ENABLE_DAEMONLIB
 public:
+#endif
     CLevelDBWrapper(const boost::filesystem::path& path, size_t nCacheSize, bool fMemory = false, bool fWipe = false);
     ~CLevelDBWrapper();