feat: adding alpine architecture

BUILD.md

@@ -116,20 +116,5 @@ If you are using Mac and openjdk7 (or higher), use the following option:
 
     $ make native LIBNAME=libsnappyjava.dylib
 
-## Building with musl libc
+## Building with Alpine 
-This project now supports building with musl libc, which is commonly used in Alpine Linux. To build using musl:
+This project now supports Alpine Image, which has the musl library.
-
-1. Use the provided Alpine-based Dockerfile:
-```bash
-docker build -f docker/Dockerfile.alpine -t snappy-java-alpine .
-docker run -it snappy-java-alpine sh
-make
-```
-
-2. The build process will:
-- Use musl libc instead of glibc
-- Statically link required libraries
-- Create a native library compatible with Alpine/musl systems
-
-The resulting library will be placed in:
-`src/main/resources/org/xerial/snappy/native/Linux-musl/x86_64/libsnappyjava.so`

Makefile

@@ -151,7 +151,7 @@ native: jni-header snappy-header $(NATIVE_DLL)
 native-nocmake: jni-header $(NATIVE_DLL)
 snappy: native $(TARGET)/$(snappy-jar-version).jar
 
-native-all: native native-arm clean-docker mac64 win32 win64 linux32 linux64 linux-ppc64le linux-riscv64 linux-s390x
+native-all: native native-arm clean-docker mac64 win32 win64 linux32 linux64 linux-ppc64le linux-riscv64 linux-s390x alpine-image alpine
 
 ifdef CI
 # Clean docker images within CI to avoid no space left error
@@ -199,6 +199,12 @@ linux32: jni-header
 linux64: jni-header
 	docker run $(DOCKER_RUN_OPTS) -i -v $$PWD:/work xerial/centos5-linux-x86_64-pic bash -c 'make clean-native native-nocmake OS_NAME=Linux OS_ARCH=x86_64'
 
+alpine-image:
+	docker build -f docker/Dockerfile.alpine -t snappy-java-alpine .
+
+alpine: jni-header
+	docker run $(DOCKER_RUN_OPTS) -i -v $$PWD:/work snappy-java-alpine bash -c 'make clean-native native-nocmake OS_NAME=Alpine OS_ARCH=x86_64'
+
 freebsd64:
 	$(MAKE) native OS_NAME=FreeBSD OS_ARCH=x86_64
 

Makefile.common

@@ -108,16 +108,16 @@ Linux-x86_64_LINKFLAGS := -shared -static-libgcc -static-libstdc++
 Linux-x86_64_LIBNAME   := libsnappyjava.so
 Linux-x86_64_SNAPPY_FLAGS  :=
 
-Linux-x86_64_musl_CXX       := $(CROSS_PREFIX)g++
+Alpine-x86_64_CXX       := $(CROSS_PREFIX)g++
-Linux-x86_64_musl_STRIP     := $(CROSS_PREFIX)strip
+Alpine-x86_64_STRIP     := $(CROSS_PREFIX)strip
 ifeq ($(IBM_JDK_7),)
-  Linux-x86_64_musl_CXXFLAGS  := -Ilib/inc_linux -I$(JAVA_HOME)/include -O2 -fPIC -fvisibility=hidden -m64 -std=c++11
+  Alpine-x86_64_CXXFLAGS  := -Ilib/inc_linux -I$(JAVA_HOME)/include -O2 -fPIC -fvisibility=hidden -m64 -std=c++11
 else
-  Linux-x86_64_musl_CXXFLAGS  := -include $(IBM_JDK_LIB)/jni_md.h -include $(IBM_JDK_LIB)/jniport.h -I$(JAVA_HOME)/include -O2 -fPIC -fvisibility=hidden -m64 -std=c++11
+  Alpine-x86_64_CXXFLAGS  := -include $(IBM_JDK_LIB)/jni_md.h -include $(IBM_JDK_LIB)/jniport.h -I$(JAVA_HOME)/include -O2 -fPIC -fvisibility=hidden -m64 -std=c++11
 endif
-Linux-x86_64_musl_LINKFLAGS := -shared -static-libgcc -static-libstdc++
+Alpine-x86_64_LINKFLAGS := -shared -static-libgcc -static-libstdc++
-Linux-x86_64_musl_LIBNAME   := libsnappyjava.so
+Alpine-x86_64_LIBNAME   := libsnappyjava.so
-Linux-x86_64_musl_SNAPPY_FLAGS  :=
+Alpine-x86_64_SNAPPY_FLAGS  :=
 
 Linux-ppc_CXX         := g++
 Linux-ppc_STRIP       := strip

build.sbt

@@ -111,7 +111,7 @@ OsgiKeys.additionalHeaders := Map(
     "org/xerial/snappy/native/Linux/ppc64/libsnappyjava.so;osname=linux;processor=ppc64le",
     "org/xerial/snappy/native/Linux/s390x/libsnappyjava.so;osname=linux;processor=s390x",
     "org/xerial/snappy/native/Linux/loongarch64/libsnappyjava.so;osname=linux;processor=loongarch64",
-    "org/xerial/snappy/native/Linux/x86_64_musl/libsnappyjava.so;osname=linux;processor=x86-64",
+    "org/xerial/snappy/native/Alpine/x86_64/libsnappyjava.so;osname=alpine;processor=x86-64",
     "org/xerial/snappy/native/AIX/ppc/libsnappyjava.a;osname=aix;processor=ppc",
     "org/xerial/snappy/native/AIX/ppc64/libsnappyjava.a;osname=aix;processor=ppc64",
     "org/xerial/snappy/native/SunOS/x86/libsnappyjava.so;osname=sunos;processor=x86",

docker/Dockerfile.alpine-linux-x86_64

@@ -31,6 +31,6 @@ RUN python3 -m ensurepip
 RUN pip3 install --no-cache --upgrade pip setuptools
 
 # Set Env Vars
-ENV CC=gcc CXX=g++ TARGET_OS=LinuxMUSL
+ENV CC=gcc CXX=g++
 ENV JAVA_HOME=/usr/lib/jvm/java-1.8-openjdk
 ENV PATH="${JAVA_HOME}/bin:${PATH}"

docker/Toolchain-musl.cmake

@@ -1,20 +0,0 @@
-set(CMAKE_SYSTEM_NAME Linux)
-set(CMAKE_SYSTEM_VERSION 1)
-
-# Specify the cross compilers
-set(CMAKE_C_COMPILER gcc)
-set(CMAKE_CXX_COMPILER g++)
-
-# Set target environment path
-set(CMAKE_FIND_ROOT_PATH /usr)
-
-# Search for programs in the host environment
-set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
-
-# Search for libraries and headers in the target environment
-set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
-set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
-
-# Set compiler flags for musl
-set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -static")
-set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -static")