Fix zstd/zdict include path for java static build

Summary:
With the ZSTD dictionary generator support added in #3057
`PORTABLE=1 ROCKSDB_NO_FBCODE=1 make rocksdbjavastatic` fails as it can't find zdict.h. Specifically due to:
https://github.com/facebook/rocksdb/blob/e3a06f12d27fd50af7b6c5941973f529601f9a3e/util/compression.h#L39
In java static builds zstd code gets directly downloaded from https://github.com/facebook/zstd , and in there zdict.h is under dictBuilder directory. So, I modified libzstd.a target to use `make install` to collect all the header files into a single location and used that as the zstd's include path.
Closes https://github.com/facebook/rocksdb/pull/3260

Differential Revision: D6669850

Pulled By: sagar0

fbshipit-source-id: f8a7562a670e5aed4c4fb6034a921697590d7285

diff --git a/Makefile b/Makefile
index c98705197ef9a6b9a251d1bc59177674949ee274..72a6f6d24e15ccd13e135806367e97716cb5c2a5 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -1648,7 +1648,7 @@ libzstd.a:
                exit 1; \
        fi
        tar xvzf zstd-$(ZSTD_VER).tar.gz
-       cd zstd-$(ZSTD_VER)/lib && make CFLAGS='-fPIC -O2 ${EXTRA_CFLAGS}' all
+       cd zstd-$(ZSTD_VER)/lib && DESTDIR=. PREFIX= make CFLAGS='-fPIC -O2 ${EXTRA_CFLAGS}' install
        cp zstd-$(ZSTD_VER)/lib/libzstd.a .
 
 # A version of each $(LIBOBJECTS) compiled with -fPIC and a fixed set of static compression libraries
@@ -1660,7 +1660,7 @@ JAVA_COMPRESSIONS = libz.a libbz2.a libsnappy.a liblz4.a libzstd.a
 endif
 
 JAVA_STATIC_FLAGS = -DZLIB -DBZIP2 -DSNAPPY -DLZ4 -DZSTD
-JAVA_STATIC_INCLUDES = -I./zlib-$(ZLIB_VER) -I./bzip2-$(BZIP2_VER) -I./snappy-$(SNAPPY_VER) -I./lz4-$(LZ4_VER)/lib -I./zstd-$(ZSTD_VER)/lib
+JAVA_STATIC_INCLUDES = -I./zlib-$(ZLIB_VER) -I./bzip2-$(BZIP2_VER) -I./snappy-$(SNAPPY_VER) -I./lz4-$(LZ4_VER)/lib -I./zstd-$(ZSTD_VER)/lib/include
 
 $(java_static_libobjects): jls/%.o: %.cc $(JAVA_COMPRESSIONS)
        $(AM_V_CC)mkdir -p $(@D) && $(CXX) $(CXXFLAGS) $(JAVA_STATIC_FLAGS) $(JAVA_STATIC_INCLUDES) -fPIC -c $< -o $@ $(COVERAGEFLAGS)