build: fix automake warnings about the use of INCLUDES

While we're at it, reduce the use of LIBS as well. This makes dependencies
explicit.

Fixes building with (the not-yet-merged) libsecp256k1 as well.

Github-Pull: #4689
Rebased-By: Wladimir J. van der laan <laanwj@gmail.com>
Rebased-From: 909b347 c0e5dda

configure.ac

@@ -304,7 +304,6 @@ AC_C_BIGENDIAN([AC_MSG_ERROR("Big Endian not supported")])
 
 dnl Check for pthread compile/link requirements
 AX_PTHREAD
-INCLUDES="$INCLUDES $PTHREAD_CFLAGS"
 
 # The following macro will add the necessary defines to bitcoin-config.h, but
 # they also need to be passed down to any subprojects. Pull the results out of
@@ -456,7 +455,6 @@ if test x$use_tests = xyes; then
 fi
 
 BOOST_LIBS="$BOOST_LDFLAGS $BOOST_SYSTEM_LIB $BOOST_FILESYSTEM_LIB $BOOST_PROGRAM_OPTIONS_LIB $BOOST_THREAD_LIB"
-BOOST_INCLUDES="$BOOST_CPPFLAGS"
 
 dnl Boost >= 1.50 uses sleep_for rather than the now-deprecated sleep, however
 dnl it was broken from 1.50 to 1.52 when backed by nanosleep. Use sleep_for if
@@ -536,8 +534,8 @@ if test x$use_pkgconfig = xyes; then
   m4_ifdef(
     [PKG_CHECK_MODULES],
     [
-      PKG_CHECK_MODULES([SSL], [libssl], [INCLUDES="$INCLUDES $SSL_CFLAGS"; LIBS="$LIBS $SSL_LIBS"], [AC_MSG_ERROR(openssl  not found.)])
-      PKG_CHECK_MODULES([CRYPTO], [libcrypto], [INCLUDES="$INCLUDES $CRYPTO_CFLAGS"; LIBS="$LIBS $CRYPTO_LIBS"], [AC_MSG_ERROR(libcrypto  not found.)])
+      PKG_CHECK_MODULES([SSL], [libssl],, [AC_MSG_ERROR(openssl  not found.)])
+      PKG_CHECK_MODULES([CRYPTO], [libcrypto],,[AC_MSG_ERROR(libcrypto  not found.)])
       BITCOIN_QT_CHECK([PKG_CHECK_MODULES([PROTOBUF], [protobuf], [have_protobuf=yes], [BITCOIN_QT_FAIL(libprotobuf not found)])])
       if test x$use_qr != xno; then
         BITCOIN_QT_CHECK([PKG_CHECK_MODULES([QR], [libqrencode], [have_qrencode=yes], [have_qrencode=no])])
@@ -546,10 +544,10 @@ if test x$use_pkgconfig = xyes; then
   )
 else
   AC_CHECK_HEADER([openssl/crypto.h],,AC_MSG_ERROR(libcrypto headers missing))
-  AC_CHECK_LIB([crypto],      [main],, AC_MSG_ERROR(libcrypto missing))
+  AC_CHECK_LIB([crypto],      [main],CRYPTO_LIBS=-lcrypto, AC_MSG_ERROR(libcrypto missing))
 
   AC_CHECK_HEADER([openssl/ssl.h],, AC_MSG_ERROR(libssl headers missing),)
-  AC_CHECK_LIB([ssl],         [main],, AC_MSG_ERROR(libssl missing))
+  AC_CHECK_LIB([ssl],         [main],SSL_LIBS=-lssl, AC_MSG_ERROR(libssl missing))
 
   BITCOIN_QT_CHECK(AC_CHECK_LIB([protobuf] ,[main],,BITCOIN_QT_FAIL(libprotobuf not found)))
   if test x$use_qr != xno; then
@@ -709,7 +707,6 @@ AC_SUBST(COPYRIGHT_YEAR, _COPYRIGHT_YEAR)
 AC_SUBST(LIBTOOL_LDFLAGS)
 AC_SUBST(USE_UPNP)
 AC_SUBST(USE_QRCODE)
-AC_SUBST(INCLUDES)
 AC_SUBST(BOOST_LIBS)
 AC_SUBST(TESTDEFS)
 AC_SUBST(LEVELDB_TARGET_FLAGS)

src/Makefile.am

@@ -1,4 +1,3 @@
-AM_CPPFLAGS =  $(INCLUDES)
 AM_LDFLAGS = $(PTHREAD_CFLAGS) $(LIBTOOL_LDFLAGS)
 
 if USE_LIBSECP256K1
@@ -22,7 +21,7 @@ $(LIBLEVELDB) $(LIBMEMENV):
 endif
 
 BITCOIN_CONFIG_INCLUDES=-I$(builddir)/config
-BITCOIN_INCLUDES=-I$(builddir) -I$(builddir)/obj $(BOOST_CPPFLAGS) $(LEVELDB_CPPFLAGS)
+BITCOIN_INCLUDES=-I$(builddir) -I$(builddir)/obj $(BOOST_CPPFLAGS) $(LEVELDB_CPPFLAGS) $(CRYPTO_CFLAGS) $(SSL_CFLAGS)
 
 if USE_LIBSECP256K1
 BITCOIN_INCLUDES += -I$(srcdir)/secp256k1/include
@@ -261,7 +260,7 @@ if TARGET_WINDOWS
 bitcoind_SOURCES += bitcoind-res.rc
 endif
 
-bitcoind_LDADD += $(BOOST_LIBS) $(BDB_LIBS)
+bitcoind_LDADD += $(BOOST_LIBS) $(BDB_LIBS) $(SSL_LIBS) $(CRYPTO_LIBS)
 bitcoind_CPPFLAGS = $(BITCOIN_INCLUDES)
 
 # bitcoin-cli binary #
@@ -270,7 +269,10 @@ bitcoin_cli_LDADD = \
   $(LIBBITCOIN_COMMON) \
   $(LIBBITCOIN_UTIL) \
   $(LIBBITCOIN_CRYPTO) \
-  $(BOOST_LIBS)
+  $(BOOST_LIBS) \
+  $(SSL_LIBS) \
+  $(CRYPTO_LIBS)
+
 bitcoin_cli_SOURCES = \
   bitcoin-cli.cpp
 
@@ -285,8 +287,15 @@ bitcoin_tx_LDADD = \
   $(LIBBITCOIN_UNIVALUE) \
   $(LIBBITCOIN_COMMON) \
   $(LIBBITCOIN_UTIL) \
-  $(LIBBITCOIN_CRYPTO) \
-  $(BOOST_LIBS)
+  $(LIBBITCOIN_CRYPTO)
+
+if USE_LIBSECP256K1
+  bitcoin_tx_LDADD += secp256k1/libsecp256k1.la
+endif
+
+  bitcoin_tx_LDADD += $(BOOST_LIBS) \
+  $(SSL_LIBS) \
+  $(CRYPTO_LIBS)
 bitcoin_tx_SOURCES = bitcoin-tx.cpp
 bitcoin_tx_CPPFLAGS = $(BITCOIN_INCLUDES)
 #

src/Makefile.qt.include

@@ -358,7 +358,7 @@ if ENABLE_WALLET
 qt_bitcoin_qt_LDADD += $(LIBBITCOIN_WALLET)
 endif
 qt_bitcoin_qt_LDADD += $(LIBBITCOIN_CLI) $(LIBBITCOIN_COMMON) $(LIBBITCOIN_UTIL) $(LIBBITCOIN_CRYPTO) $(LIBBITCOIN_UNIVALUE) $(LIBLEVELDB) $(LIBMEMENV) \
-  $(BOOST_LIBS) $(QT_LIBS) $(QT_DBUS_LIBS) $(QR_LIBS) $(PROTOBUF_LIBS) $(BDB_LIBS)
+  $(BOOST_LIBS) $(QT_LIBS) $(QT_DBUS_LIBS) $(QR_LIBS) $(PROTOBUF_LIBS) $(BDB_LIBS) $(SSL_LIBS) $(CRYPTO_LIBS)
 if USE_LIBSECP256K1
   qt_bitcoin_qt_LDADD += secp256k1/libsecp256k1.la
 endif

src/Makefile.qttest.include

@@ -32,7 +32,7 @@ qt_test_test_bitcoin_qt_LDADD += $(LIBBITCOIN_WALLET)
 endif
 qt_test_test_bitcoin_qt_LDADD += $(LIBBITCOIN_CLI) $(LIBBITCOIN_COMMON) $(LIBBITCOIN_UTIL) $(LIBBITCOIN_CRYPTO) $(LIBBITCOIN_UNIVALUE) $(LIBLEVELDB) \
   $(LIBMEMENV) $(BOOST_LIBS) $(QT_DBUS_LIBS) $(QT_TEST_LIBS) $(QT_LIBS) \
-  $(QR_LIBS) $(PROTOBUF_LIBS) $(BDB_LIBS)
+  $(QR_LIBS) $(PROTOBUF_LIBS) $(BDB_LIBS) $(SSL_LIBS) $(CRYPTO_LIBS)
 if USE_LIBSECP256K1
   qt_test_test_bitcoin_qt_LDADD += secp256k1/libsecp256k1.la
 endif

src/Makefile.test.include

@@ -74,7 +74,7 @@ if USE_LIBSECP256K1
   test_test_bitcoin_LDADD += secp256k1/libsecp256k1.la
 endif
 
-test_test_bitcoin_LDADD += $(BDB_LIBS)
+test_test_bitcoin_LDADD += $(BDB_LIBS) $(SSL_LIBS) $(CRYPTO_LIBS)
 
 nodist_test_test_bitcoin_SOURCES = $(GENERATED_TEST_FILES)