feat: adding alpine architecture

Makefile.common

@@ -6,6 +6,11 @@ ifndef JAVA_HOME
 $(warning Set JAVA_HOME environment variable)
 endif
 
+ifeq ($(shell ldd --version | grep -o 'musl'), musl)
+    MUSL_ENABLED := true
+else
+    MUSL_ENABLED := false
+endif
 
 JAVA  := "$$JAVA_HOME/bin/java"
 JAVAC := "$$JAVA_HOME/bin/javac"
@@ -51,7 +56,7 @@ endif
 # os=Default is meant to be generic unix/linux
 
 # To support new CPU architecture, add a new target name here
-known_os_archs := Linux-x86 Linux-x86_64 Linux-arm Linux-armv6 Linux-armv7 Linux-android-arm Linux-android-aarch64 Linux-aarch64 Linux-ppc Linux-ppc64 Linux-ppc64le Linux-s390 Linux-s390x Mac-x86 Mac-x86_64 Mac-aarch64 FreeBSD-x86_64 Windows-x86 Windows-x86_64 Windows-aarch64 SunOS-x86 SunOS-sparc SunOS-x86_64 AIX-ppc AIX-ppc64 Linux-riscv Linux-riscv64 Linux-loongarch Linux-loongarch64
+known_os_archs := Alpine-x86_64 Linux-x86 Linux-x86_64 Linux-arm Linux-armv6 Linux-armv7 Linux-android-arm Linux-android-aarch64 Linux-aarch64 Linux-ppc Linux-ppc64 Linux-ppc64le Linux-s390 Linux-s390x Mac-x86 Mac-x86_64 Mac-aarch64 FreeBSD-x86_64 Windows-x86 Windows-x86_64 Windows-aarch64 SunOS-x86 SunOS-sparc SunOS-x86_64 AIX-ppc AIX-ppc64 Linux-riscv Linux-riscv64 Linux-loongarch Linux-loongarch64
 os_arch := $(OS_NAME)-$(OS_ARCH)
 IBM_JDK_7 := $(findstring IBM, $(shell $(JAVA) -version 2>&1 | grep IBM | grep "JRE 1.7"))
 
@@ -103,6 +108,17 @@ 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++
+Linux-x86_64_musl_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
+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
+endif
+Linux-x86_64_musl_LINKFLAGS := -shared -static-libgcc -static-libstdc++
+Linux-x86_64_musl_LIBNAME   := libsnappyjava.so
+Linux-x86_64_musl_SNAPPY_FLAGS  :=
+
 Linux-ppc_CXX         := g++
 Linux-ppc_STRIP       := strip
 ifeq ($(IBM_JDK_7),)

build.sbt

@@ -111,6 +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/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

@@ -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=Linux-musl
+ENV CC=gcc CXX=g++ TARGET_OS=LinuxMUSL
 ENV JAVA_HOME=/usr/lib/jvm/java-1.8-openjdk
 ENV PATH="${JAVA_HOME}/bin:${PATH}"