add alpine ci run

.github/workflows/ci.yml

@@ -69,3 +69,14 @@ jobs:
           sudo apt-get -y remove libzstd || true
           sudo apt-get -y install uuid-dev libcurl4-openssl-dev libbz2-dev zlib1g-dev libsnappy-dev liblz4-dev libzstd-dev libgflags-dev
           make KEYDB_CFLAGS='-Werror' KEYDB_CXXFLAGS='-Werror' MALLOC=libc -j2
+
+  build-alpine:
+    runs-on: alpine-latest
+    steps:
+    - uses: actions/checkout@v2
+      with:
+        submodules: recursive
+    - name: make -j2
+      run: | 
+        apk add coreutils gcc linux-headers make musl-dev openssl-dev git util-linux-dev curl-dev g++ libunwind-dev bash perl git bzip2-dev zstd-dev lz4-dev snappy-dev
+        make -j2

src/Makefile

@@ -349,7 +349,7 @@ endif
 # Alpine OS doesn't have support for the execinfo backtrace library we use for debug, so we provide an alternate implementation using libwunwind.
 OS := $(shell cat /etc/os-release | grep ID= | head -n 1 | cut -d'=' -f2)
 ifeq ($(OS),alpine)
-    FINAL_CXXFLAGS+=-DUNW_LOCAL_ONLY
+    FINAL_CXXFLAGS+=-DUNW_LOCAL_ONLY -DALPINE
     FINAL_LIBS += -lunwind
 endif
 

src/server.h

@@ -3894,14 +3894,30 @@ void incrementMvccTstamp();
 
 #if __GNUC__ >= 7 && !defined(NO_DEPRECATE_FREE)
  [[deprecated]]
+#ifdef ALPINE
+void *calloc(size_t count, size_t size);
+#else
 void *calloc(size_t count, size_t size) noexcept;
+#endif
  [[deprecated]]
+#ifdef ALPINE
+void free(void *ptr);
+#else
 void free(void *ptr) noexcept;
+#endif
  [[deprecated]]
+#ifdef ALPINE
+void *malloc(size_t size);
+#else
 void *malloc(size_t size) noexcept;
+#endif
  [[deprecated]]
+#ifdef ALPINE
+void *realloc(void *ptr, size_t size);
+#else
 void *realloc(void *ptr, size_t size) noexcept;
 #endif
+#endif
 
 /* Debugging stuff */
 void bugReportStart(void);