building on linux

cozorocks/build_rocksdb.sh

@@ -1,3 +1,10 @@
+if [[ "$OSTYPE" == "linux-gnu"* ]]; then
+  export CC=/usr/bin/clang-10
+  export CPP=/usr/bin/clang-cpp-10
+  export CXX=/usr/bin/clang++-10
+  export LD=/usr/bin/ld.lld-10
+fi
+
 mkdir -p deps
 INSTALL_DIR=$(readlink -f deps)
 echo "$INSTALL_DIR"
@@ -16,14 +23,14 @@ make clean
 export JEMALLOC_BASE=$INSTALL_DIR
 
 DEBUG_LEVEL=0 \
-JEMALLOC_INCLUDE=" -I $JEMALLOC_BASE/include/" \
+  JEMALLOC_INCLUDE=" -I $JEMALLOC_BASE/include/" \
-JEMALLOC_LIB=" $JEMALLOC_BASE/lib/libjemalloc.a" \
+  JEMALLOC_LIB=" $JEMALLOC_BASE/lib/libjemalloc.a" \
-USE_RTTI=1 \
+  USE_RTTI=1 \
-USE_CLANG=1 \
+  USE_CLANG=1 \
-JEMALLOC=1 \
+  JEMALLOC=1 \
-PREFIX=$INSTALL_DIR \
+  PREFIX=$INSTALL_DIR \
-make install-static || exit
+  make install-static || exit
 
 DEBUG_LEVEL=0 make libz.a libsnappy.a liblz4.a libzstd.a
 mv ./*.a ../deps/lib || exit
-make clean
+make clean

cozorocks/src/tests.rs

@@ -1,8 +1,6 @@
 use crate::*;
 
-#[allow(improper_ctypes_definitions)]
+fn test_comparator(a: &[u8], b: &[u8]) -> i8 {
-#[no_mangle]
-extern "C" fn test_comparator(a: &[u8], b: &[u8]) -> i8 {
     use std::cmp::Ordering::*;
     let res = a.cmp(b);