From e463edc1226020292183848d404ed28abf399645 Mon Sep 17 00:00:00 2001
From: Sean Bowe <ewillbefull@gmail.com>
Date: Mon, 15 Feb 2016 15:27:15 -0700
Subject: [PATCH] Build and link libzerocash.

---
 configure.ac              | 19 ++----------
 src/Makefile.am           | 63 +++++++++++++++++++++++++++++++++++----
 src/Makefile.test.include |  2 +-
 3 files changed, 60 insertions(+), 24 deletions(-)

diff --git a/configure.ac b/configure.ac
index 2c8bf75c5..b21a4c7cb 100644
--- a/configure.ac
+++ b/configure.ac
@@ -717,23 +717,7 @@ CPPFLAGS="-I$LIBSNARK_INCDIR $CPPFLAGS"
 AC_CHECK_HEADER([libsnark/gadgetlib1/gadget.hpp],,AC_MSG_ERROR(libsnark headers missing))
 AC_CHECK_LIB([snark],[main],LIBSNARK_LIBS=-lsnark, [AC_MSG_ERROR(libsnark missing)], [-lgmpxx])
 
-# Abuse the ugly libsnark hack above further to get the libzerocash directory
-[LIBZEROCASH_INCDIR=$(echo "$LIBSNARK_INCDIR" | sed 's,libsnark$,libzerocash,')]
-if test -d "$LIBZEROCASH_INCDIR"; then
-   echo "Found libzerocash include directory: $LIBZEROCASH_INCDIR"
-else
-    AC_MSG_ERROR(libzerocash include directory not found)
-fi
-
-CPPFLAGS="-I$LIBZEROCASH_INCDIR $CPPFLAGS"
-
-# libzerocash depends on headers in ./src/, so for the following
-# AC_CHECK_HEADER, that has to be on the include path list.
-CPPFLAGS_TEMP="$CPPFLAGS"
-CPPFLAGS="-I ./src/ $CPPFLAGS"
-AC_CHECK_HEADER([libzerocash/libzerocash/Zerocash.h],,AC_MSG_ERROR(libzerocash headers missing))
-AC_CHECK_LIB([zerocash], [main],LIBZEROCASH_LIBS="-lzerocash -lsnark -lcryptopp -lgmp -lgmpxx -lboost_system-mt -lcrypto", [AC_MSG_ERROR(libzerocash missing)], [-lsnark -lcryptopp -lgmp -lgmpxx -lboost_system-mt -lcrypto])
-CPPFLAGS="$CPPFLAGS_TEMP"
+LIBZEROCASH_LIBS="-lsnark -lcryptopp -lgmp -lgmpxx -lboost_system-mt -lcrypto"
 
 AC_CHECK_LIB([crypto],[RAND_egd],[],[
   AC_ARG_WITH([libressl],
@@ -782,6 +766,7 @@ if test x$build_bitcoin_libs = xyes; then
   AC_DEFINE(HAVE_CONSENSUS_LIB, 1, [Define this symbol if the consensus lib has been built])
   AC_CONFIG_FILES([libbitcoinconsensus.pc:libbitcoinconsensus.pc.in])
 fi
+
 AC_MSG_RESULT($build_bitcoin_libs)
 
 AC_LANG_POP
diff --git a/src/Makefile.am b/src/Makefile.am
index 7aade4ea3..b03296957 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -31,6 +31,7 @@ LIBBITCOIN_CRYPTO=crypto/libbitcoin_crypto.a
 LIBBITCOIN_UNIVALUE=univalue/libbitcoin_univalue.a
 LIBBITCOINQT=qt/libbitcoinqt.a
 LIBSECP256K1=secp256k1/libsecp256k1.la
+LIBZEROCASH=libzerocash.a
 
 $(LIBSECP256K1): $(wildcard secp256k1/src/*) $(wildcard secp256k1/include/*)
 	$(AM_V_at)$(MAKE) $(AM_MAKEFLAGS) -C $(@D) $(@F)
@@ -43,7 +44,8 @@ EXTRA_LIBRARIES = \
   libbitcoin_common.a \
   univalue/libbitcoin_univalue.a \
   libbitcoin_server.a \
-  libbitcoin_cli.a
+  libbitcoin_cli.a \
+  libzerocash.a
 if ENABLE_WALLET
 BITCOIN_INCLUDES += $(BDB_CPPFLAGS)
 EXTRA_LIBRARIES += libbitcoin_wallet.a
@@ -67,6 +69,27 @@ if BUILD_BITCOIN_UTILS
   bin_PROGRAMS += zcash-cli bitcoin-tx
 endif
 
+LIBZEROCASH_H = \
+  zerocash/Address.h \
+  zerocash/CoinCommitment.h \
+  zerocash/Coin.h \
+  zerocash/IncrementalMerkleTree.h \
+  zerocash/MintTransaction.h \
+  zerocash/PourInput.h \
+  zerocash/PourOutput.h \
+  zerocash/PourProver.h \
+  zerocash/PourTransaction.h \
+  zerocash/Zerocash.h \
+  zerocash/ZerocashParams.h \
+  zerocash/zerocash_pour_params.hpp \
+  zerocash/utils/sha256.h \
+  zerocash/utils/util.h
+
+#  zerocash/zerocash_pour_gadget.hpp
+#  zerocash/zerocash_pour_gadget.tcc
+#  zerocash/zerocash_pour_ppzksnark.hpp
+#  zerocash/zerocash_pour_ppzksnark.tcc
+
 .PHONY: FORCE
 # bitcoin core #
 BITCOIN_CORE_H = \
@@ -202,7 +225,8 @@ libbitcoin_server_a_SOURCES = \
   txmempool.cpp \
   validationinterface.cpp \
   $(JSON_H) \
-  $(BITCOIN_CORE_H)
+  $(BITCOIN_CORE_H) \
+  $(LIBZEROCASH_H)
 
 # wallet: shared between bitcoind and bitcoin-qt, but only linked
 # when wallet enabled
@@ -215,7 +239,8 @@ libbitcoin_wallet_a_SOURCES = \
   wallet/wallet.cpp \
   wallet/wallet_ismine.cpp \
   wallet/walletdb.cpp \
-  $(BITCOIN_CORE_H)
+  $(BITCOIN_CORE_H) \
+  $(LIBZEROCASH_H)
 
 # crypto primitives library
 crypto_libbitcoin_crypto_a_CPPFLAGS = $(BITCOIN_CONFIG_INCLUDES)
@@ -269,7 +294,8 @@ libbitcoin_common_a_SOURCES = \
   script/script_error.cpp \
   script/sign.cpp \
   script/standard.cpp \
-  $(BITCOIN_CORE_H)
+  $(BITCOIN_CORE_H) \
+  $(LIBZEROCASH_H)
 
 # util: shared between all executables.
 # This library *must* be included to make sure that the glibc
@@ -291,7 +317,8 @@ libbitcoin_util_a_SOURCES = \
   utilmoneystr.cpp \
   utilstrencodings.cpp \
   utiltime.cpp \
-  $(BITCOIN_CORE_H)
+  $(BITCOIN_CORE_H) \
+  $(LIBZEROCASH_H)
 
 if GLIBC_BACK_COMPAT
 libbitcoin_util_a_SOURCES += compat/glibc_compat.cpp
@@ -301,7 +328,8 @@ endif
 libbitcoin_cli_a_CPPFLAGS = $(BITCOIN_INCLUDES)
 libbitcoin_cli_a_SOURCES = \
   rpcclient.cpp \
-  $(BITCOIN_CORE_H)
+  $(BITCOIN_CORE_H) \
+  $(LIBZEROCASH_H)
 
 nodist_libbitcoin_util_a_SOURCES = $(srcdir)/obj/build.h
 #
@@ -321,6 +349,7 @@ zcashd_LDADD = \
   $(LIBBITCOIN_UNIVALUE) \
   $(LIBBITCOIN_UTIL) \
   $(LIBBITCOIN_CRYPTO) \
+  $(LIBZEROCASH) \
   $(LIBLEVELDB) \
   $(LIBMEMENV) \
   $(LIBSECP256K1)
@@ -335,6 +364,7 @@ zcashd_LDADD += \
   $(SSL_LIBS) \
   $(CRYPTO_LIBS) \
   $(MINIUPNPC_LIBS) \
+  $(LIBZEROCASH) \
   $(LIBZEROCASH_LIBS)
 #
 
@@ -353,6 +383,7 @@ zcash_cli_LDADD = \
   $(BOOST_LIBS) \
   $(SSL_LIBS) \
   $(CRYPTO_LIBS) \
+  $(LIBZEROCASH) \
   $(LIBZEROCASH_LIBS)
 #
 
@@ -372,11 +403,31 @@ bitcoin_tx_LDADD = \
   $(LIBBITCOIN_UTIL) \
   $(LIBBITCOIN_CRYPTO) \
   $(LIBSECP256K1) \
+  $(LIBZEROCASH) \
   $(LIBZEROCASH_LIBS)
 
 bitcoin_tx_LDADD += $(BOOST_LIBS) $(CRYPTO_LIBS)
 #
 
+# zerocash protocol primitives #
+libzerocash_a_SOURCES = \
+  zerocash/Address.cpp \
+  zerocash/CoinCommitment.cpp \
+  zerocash/Coin.cpp \
+  zerocash/IncrementalMerkleTree.cpp \
+  zerocash/MintTransaction.cpp \
+  zerocash/PourInput.cpp \
+  zerocash/PourOutput.cpp \
+  zerocash/PourProver.cpp \
+  zerocash/PourTransaction.cpp \
+  zerocash/ZerocashParams.cpp \
+  zerocash/utils/sha256.cpp \
+  zerocash/utils/util.cpp
+
+#libzerocash_a_LIBADD = $(LIBZEROCASH_LIBS)
+libzerocash_a_CPPFLAGS = -fPIC -DCURVE_ALT_BN128 -DBOOST_SPIRIT_THREADSAFE -DHAVE_BUILD_INFO -D__STDC_FORMAT_MACROS -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -std=c++11 -pipe -O2 -O0 -g -Wstack-protector -fstack-protector-all -fPIE -fvisibility=hidden -DSTATIC $(BITCOIN_INCLUDES)
+#libzerocash_a_CPPFLAGS = -std=c++11 -fPIC -I$(builddir)/obj -DCURVE_ALT_BN128 -DSTATIC $(BITCOIN_INCLUDES)
+
 # bitcoinconsensus library #
 if BUILD_BITCOIN_LIBS
 include_HEADERS = script/bitcoinconsensus.h
diff --git a/src/Makefile.test.include b/src/Makefile.test.include
index 64d984e9e..825e7130d 100644
--- a/src/Makefile.test.include
+++ b/src/Makefile.test.include
@@ -88,7 +88,7 @@ endif
 test_test_bitcoin_SOURCES = $(BITCOIN_TESTS) $(JSON_TEST_FILES) $(RAW_TEST_FILES)
 test_test_bitcoin_CPPFLAGS = $(BITCOIN_INCLUDES) -I$(builddir)/test/ $(TESTDEFS)
 test_test_bitcoin_LDADD = $(LIBBITCOIN_SERVER) $(LIBBITCOIN_CLI) $(LIBBITCOIN_COMMON) $(LIBBITCOIN_UTIL) $(LIBBITCOIN_CRYPTO) $(LIBBITCOIN_UNIVALUE) $(LIBLEVELDB) $(LIBMEMENV) \
-  $(BOOST_LIBS) $(BOOST_UNIT_TEST_FRAMEWORK_LIB) $(LIBSECP256K1) $(LIBZEROCASH_LIBS)
+  $(BOOST_LIBS) $(BOOST_UNIT_TEST_FRAMEWORK_LIB) $(LIBSECP256K1) $(LIBZEROCASH) $(LIBZEROCASH_LIBS)
 if ENABLE_WALLET
 test_test_bitcoin_LDADD += $(LIBBITCOIN_WALLET)
 endif