Allow building with cmake (to ease building on windows), version 2

.travis.yml

@@ -1,12 +1,16 @@
-language: cpp
-compiler:
-- clang
-- gcc
-os:
-- linux
-sudo: false
+language: generic
+matrix:
+  include:
+    - os: linux
+      dist: trusty # For Docker.
+      sudo: required # For Docker.
+      script:
+        - echo "Testing branch $TRAVIS_BRANCH of $REPOSITORY_NAME"
+        - docker run --rm -i -v $CI_SOURCE_PATH:$CI_SOURCE_PATH -e "CI_SOURCE_PATH=$CI_SOURCE_PATH" -e "HOME=$HOME" -t ubuntu:xenial sh -c "cd $CI_SOURCE_PATH; apt-get -qq update && apt-get -qq install build-essential cmake libgtest-dev; mkdir build && cd build && cmake ../ && make all && make test"
+    - os: osx
+      script:
+        - echo "Testing branch $TRAVIS_BRANCH of $REPOSITORY_NAME"
+        - mkdir build && cd build && cmake ../ && make all && make test
 before_install:
-- echo $LANG
-- echo $LC_ALL
-script:
-- ./autogen.sh && ./configure && make -j 4 check
+- export CI_SOURCE_PATH=$(pwd)
+- export REPOSITORY_NAME=${PWD##*/}

CMakeLists.txt

@@ -0,0 +1,162 @@
+CMAKE_MINIMUM_REQUIRED(VERSION 3.4)
+PROJECT(Snappy VERSION 1.1.4 LANGUAGES C CXX)
+
+SET(CMAKE_INCLUDE_CURRENT_DIR ON)
+
+INCLUDE(CheckIncludeFiles)
+INCLUDE(CheckLibraryExists)
+INCLUDE(CheckCXXSourceCompiles)
+INCLUDE(TestBigEndian)
+INCLUDE(CMakePackageConfigHelpers)
+
+TEST_BIG_ENDIAN(WORDS_BIG_ENDIAN)
+IF (WORDS_BIG_ENDIAN)
+    MESSAGE(STATUS "Building on big endian system")
+    ADD_DEFINITIONS(-DWORDS_BIGENDIAN=1)
+ENDIF (WORDS_BIG_ENDIAN)
+
+CHECK_INCLUDE_FILES("byteswap.h" HAVE_BYTESWAP_H)
+CHECK_INCLUDE_FILES("dlfcn.h" HAVE_DLFCN_H)
+CHECK_INCLUDE_FILES("inttypes.h" HAVE_INTTYPES_H)
+CHECK_INCLUDE_FILES("memory.h" HAVE_MEMORY_H)
+CHECK_INCLUDE_FILES("stddef.h" HAVE_STDDEF_H)
+CHECK_INCLUDE_FILES("stdint.h" HAVE_STDINT_H)
+CHECK_INCLUDE_FILES("stdlib.h" HAVE_STDLIB_H)
+CHECK_INCLUDE_FILES("strings.h" HAVE_STRINGS_H)
+CHECK_INCLUDE_FILES("string.h" HAVE_STRING_H)
+CHECK_INCLUDE_FILES("sys/byteswap.h" HAVE_SYS_BYTESWAP_H)
+CHECK_INCLUDE_FILES("sys/endian.h" HAVE_SYS_ENDIAN_H)
+CHECK_INCLUDE_FILES("sys/mman.h" HAVE_SYS_MMAN_H)
+CHECK_INCLUDE_FILES("sys/resource.h" HAVE_SYS_RESOURCE_H)
+CHECK_INCLUDE_FILES("sys/stat.h" HAVE_SYS_STAT_H)
+CHECK_INCLUDE_FILES("sys/time.h" HAVE_SYS_TIME_H)
+CHECK_INCLUDE_FILES("sys/types.h" HAVE_SYS_TYPES_H)
+CHECK_INCLUDE_FILES("sys/uio.h" HAVE_SYS_UIO_H)
+CHECK_INCLUDE_FILES("unistd.h" HAVE_UNISTD_H)
+CHECK_INCLUDE_FILES("windows.h" HAVE_WINDOWS_H)
+
+IF (NOT HAVE_SYS_UIO_H)
+    SET(HAVE_SYS_UIO_H 0)
+ENDIF (NOT HAVE_SYS_UIO_H)
+
+IF (NOT HAVE_STDINT_H)
+    SET(HAVE_STDINT_H 0)
+ENDIF (NOT HAVE_STDINT_H)
+
+IF (NOT HAVE_STDDEF_H)
+    SET(HAVE_STDDEF_H 0)
+ENDIF (NOT HAVE_STDDEF_H)
+
+CHECK_LIBRARY_EXISTS(z zlibVersion "" HAVE_LIBZ)
+CHECK_LIBRARY_EXISTS(lzo2 lzo1x_1_15_compress "" HAVE_LIBLZO2)
+CHECK_LIBRARY_EXISTS(lzf lzf_compress "" HAVE_LIBLZF)
+CHECK_LIBRARY_EXISTS(fastlz fastlz_compress "" HAVE_LIBFASTLZ)
+CHECK_LIBRARY_EXISTS(quicklz qlz_compress "" HAVE_LIBQUICKLZ)
+
+CHECK_CXX_SOURCE_COMPILES("int main(void) { return __builtin_expect(0, 1); }"
+        HAVE_BUILTIN_EXPECT)
+
+CHECK_CXX_SOURCE_COMPILES("int main(void) { return __builtin_ctzll(0); }"
+        HAVE_BUILTIN_CTZ)
+
+FIND_PACKAGE(GTest QUIET)
+IF(GTEST_FOUND)
+    SET(HAVE_GTEST 1)
+ENDIF()
+
+FIND_PACKAGE(Gflags QUIET)
+IF(GFLAGS_FOUND)
+    SET(HAVE_GFLAGS 1)
+ENDIF()
+
+CONFIGURE_FILE(${Snappy_SOURCE_DIR}/cmake/config.h.in config.h)
+
+# Configure snappy-stubs-public.h.in
+SET(ac_cv_have_stdint_h ${HAVE_STDINT_H})
+SET(ac_cv_have_stddef_h ${HAVE_STDDEF_H})
+SET(ac_cv_have_sys_uio_h ${HAVE_SYS_UIO_H})
+CONFIGURE_FILE(${Snappy_SOURCE_DIR}/snappy-stubs-public.h.in
+               snappy-stubs-public.h)
+
+IF (WIN32)
+    ADD_DEFINITIONS(-D_CRT_SECURE_NO_WARNINGS)
+ENDIF (WIN32)
+
+# Define the main library.
+ADD_LIBRARY(snappy SHARED
+        snappy-c.cc
+        snappy-c.h
+        snappy-sinksource.cc
+        snappy-sinksource.h
+        snappy-stubs-internal.cc
+        snappy-stubs-public.h
+        snappy.cc
+        snappy.h)
+
+TARGET_COMPILE_DEFINITIONS(snappy PRIVATE -DHAVE_CONFIG_H)
+
+SET_TARGET_PROPERTIES(snappy PROPERTIES WINDOWS_EXPORT_ALL_SYMBOLS ON)
+
+INSTALL(FILES snappy.h
+        snappy-c.h
+        snappy-sinksource.h
+        ${Snappy_BINARY_DIR}/snappy-stubs-public.h
+        DESTINATION include)
+
+INSTALL(TARGETS snappy
+        EXPORT SnappyTargets
+        RUNTIME DESTINATION bin
+        LIBRARY DESTINATION lib
+        ARCHIVE DESTINATION lib)
+INSTALL(EXPORT SnappyTargets NAMESPACE Snappy:: DESTINATION lib/cmake/Snappy)
+
+SET_TARGET_PROPERTIES(snappy PROPERTIES SOVERSION ${PROJECT_VERSION})
+
+SET(INCLUDE_INSTALL_DIR include)
+SET(LIBRARY_INSTALL_DIR lib)
+SET(BINARY_INSTALL_DIR bin)
+
+CONFIGURE_PACKAGE_CONFIG_FILE(cmake/SnappyConfig.cmake.in
+        ${Snappy_BINARY_DIR}/SnappyConfig.cmake
+        INSTALL_DESTINATION lib/Snappy/cmake
+        PATH_VARS INCLUDE_INSTALL_DIR LIBRARY_INSTALL_DIR BINARY_INSTALL_DIR
+        )
+
+WRITE_BASIC_PACKAGE_VERSION_FILE(${Snappy_BINARY_DIR}/SnappyConfigVersion.cmake
+        COMPATIBILITY SameMajorVersion)
+INSTALL(FILES ${Snappy_BINARY_DIR}/SnappyConfig.cmake
+        ${Snappy_BINARY_DIR}/SnappyConfigVersion.cmake
+        DESTINATION lib/cmake)
+
+ENABLE_TESTING()
+
+IF (HAVE_LIBZ)
+    LIST(APPEND COMPRESSION_LIBS z)
+ENDIF (HAVE_LIBZ)
+
+IF (HAVE_LIBLZO2)
+    LIST(APPEND COMPRESSION_LIBS lzo2)
+ENDIF (HAVE_LIBLZO2)
+
+IF (HAVE_LIBLZF)
+    LIST(APPEND COMPRESSION_LIBS lzf)
+ENDIF (HAVE_LIBLZF)
+
+IF (HAVE_LIBFASTLZ)
+    LIST(APPEND COMPRESSION_LIBS fastlz)
+ENDIF (HAVE_LIBFASTLZ)
+
+IF (HAVE_LIBQUICKLZ)
+    LIST(APPEND COMPRESSION_LIBS quicklz)
+ENDIF (HAVE_LIBQUICKLZ)
+
+ADD_EXECUTABLE(snappy-unittest snappy_unittest.cc snappy-test.cc)
+TARGET_COMPILE_DEFINITIONS(snappy-unittest PRIVATE -DHAVE_CONFIG_H)
+TARGET_LINK_LIBRARIES(snappy-unittest snappy ${COMPRESSION_LIBS}
+                      ${GFLAGS_LIBRARIES})
+TARGET_INCLUDE_DIRECTORIES(snappy-unittest BEFORE PRIVATE ${Snappy_SOURCE_DIR}
+                           ${GTEST_INCLUDE_DIRS} ${GFLAGS_INCLUDE_DIRS})
+
+ADD_TEST(NAME snappy-unittest
+         WORKING_DIRECTORY ${Snappy_SOURCE_DIR}
+         COMMAND ${Snappy_BINARY_DIR}/snappy-unittest)

Makefile.am

@@ -4,6 +4,7 @@ ACLOCAL_AMFLAGS = -I m4
 lib_LTLIBRARIES = libsnappy.la
 libsnappy_la_SOURCES = snappy.cc snappy-sinksource.cc snappy-stubs-internal.cc snappy-c.cc
 libsnappy_la_LDFLAGS = -version-info $(SNAPPY_LTVERSION)
+libsnappy_la_LDFLAGS = -Dsnappy_EXPORTS
 
 include_HEADERS = snappy.h snappy-sinksource.h snappy-stubs-public.h snappy-c.h
 noinst_HEADERS = snappy-internal.h snappy-stubs-internal.h snappy-test.h

README.md

@@ -62,6 +62,16 @@ Performance optimizations, whether for 64-bit x86 or other platforms,
 are of course most welcome; see "Contact", below.
 
 
+Building
+========
+
+CMake is supported and autotools will soon be deprecated.
+You need CMake 3.4 or above to build:
+
+  mkdir build
+  cd build && cmake ../ && make
+
+
 Usage
 =====
 

cmake/SnappyConfig.cmake.in

@@ -0,0 +1,9 @@
+set(SNAPPY_VERSION @SNAPPY_MAJOR@.@SNAPPY_MINOR@.@SNAPPY_PATCHLEVEL@)
+
+@PACKAGE_INIT@
+
+set_and_check(SNAPPY_INCLUDE_DIR "@PACKAGE_INCLUDE_INSTALL_DIR@")
+set_and_check(SNAPPY_LIBRARY_DIR "@PACKAGE_LIBRARY_INSTALL_DIR@")
+set_and_check(SNAPPY_BINARY_DIR "@PACKAGE_BINARY_INSTALL_DIR@")
+
+check_required_components(SNAPPY)

cmake/config.h.in

@@ -0,0 +1,99 @@
+#ifndef SNAPPY_CONFIG_H
+#define SNAPPY_CONFIG_H 1
+
+/* Define to 1 if the compiler supports __builtin_ctz and friends. */
+#cmakedefine HAVE_BUILTIN_CTZ ${HAVE_BUILTIN_CTZ}
+
+/* Define to 1 if the compiler supports __builtin_expect. */
+#cmakedefine HAVE_BUILTIN_EXPECT ${HAVE_BUILTIN_EXPECT}
+
+/* Define to 1 if you have the <byteswap.h> header file. */
+#cmakedefine HAVE_BYTESWAP_H ${HAVE_BYTESWAP_H}
+
+/* Define to 1 if you have the <dlfcn.h> header file. */
+#cmakedefine HAVE_DLFCN_H ${HAVE_DLFCN_H}
+
+/* Use the gflags package for command-line parsing. */
+#cmakedefine HAVE_GFLAGS ${HAVE_GFLAGS}
+
+/* Defined when Google Test is available. */
+#cmakedefine HAVE_GTEST ${HAVE_GTEST}
+
+/* Define to 1 if you have the <inttypes.h> header file. */
+#cmakedefine HAVE_INTTYPES_H ${HAVE_INTTYPES_H}
+
+/* Define to 1 if you have the `fastlz' library (-lfastlz). */
+#cmakedefine HAVE_LIBFASTLZ ${HAVE_LIBFASTLZ}
+
+/* Define to 1 if you have the `lzf' library (-llzf). */
+#cmakedefine HAVE_LIBLZF ${HAVE_LIBLZF}
+
+/* Define to 1 if you have the `lzo2' library (-llzo2). */
+#cmakedefine HAVE_LIBLZO2 ${HAVE_LIBLZO2}
+
+/* Define to 1 if you have the `quicklz' library (-lquicklz). */
+#cmakedefine HAVE_LIBQUICKLZ ${HAVE_LIBQUICKLZ}
+
+/* Define to 1 if you have the `z' library (-lz). */
+#cmakedefine HAVE_LIBZ ${HAVE_LIBZ}
+
+/* Define to 1 if you have the <sys/uio.h> header file. */
+#cmakedefine HAVE_SYS_UIO_H ${HAVE_SYS_UIO_H}
+
+/* Define to 1 if you have the <memory.h> header file. */
+#cmakedefine HAVE_MEMORY_H ${HAVE_MEMORY_H}
+
+/* Define to 1 if you have the <stddef.h> header file. */
+#cmakedefine HAVE_STDDEF_H ${HAVE_STDDEF_H}
+
+/* Define to 1 if you have the <stdint.h> header file. */
+#cmakedefine HAVE_STDINT_H ${HAVE_STDINT_H}
+
+/* Define to 1 if you have the <stdlib.h> header file. */
+#cmakedefine HAVE_STDLIB_H ${HAVE_STDLIB_H}
+
+/* Define to 1 if you have the <strings.h> header file. */
+#cmakedefine HAVE_STRINGS_H ${HAVE_STRINGS_H}
+
+/* Define to 1 if you have the <string.h> header file. */
+#cmakedefine HAVE_STRING_H ${HAVE_STRING_H}
+
+/* Define to 1 if you have the <sys/byteswap.h> header file. */
+#cmakedefine HAVE_SYS_BYTESWAP_H ${HAVE_SYS_BYTESWAP_H}
+
+/* Define to 1 if you have the <sys/endian.h> header file. */
+#cmakedefine HAVE_SYS_ENDIAN_H ${HAVE_SYS_ENDIAN_H}
+
+/* Define to 1 if you have the <sys/mman.h> header file. */
+#cmakedefine HAVE_SYS_MMAN_H ${HAVE_SYS_MMAN_H}
+
+/* Define to 1 if you have the <sys/resource.h> header file. */
+#cmakedefine HAVE_SYS_RESOURCE_H ${HAVE_SYS_RESOURCE_H}
+
+/* Define to 1 if you have the <sys/stat.h> header file. */
+#cmakedefine HAVE_SYS_STAT_H ${HAVE_SYS_STAT_H}
+
+/* Define to 1 if you have the <sys/time.h> header file. */
+#cmakedefine HAVE_SYS_TIME_H ${HAVE_SYS_TIME_H}
+
+/* Define to 1 if you have the <sys/types.h> header file. */
+#cmakedefine HAVE_SYS_TYPES_H ${HAVE_SYS_TYPES}
+
+/* Define to 1 if you have the <unistd.h> header file. */
+#cmakedefine HAVE_UNISTD_H ${HAVE_UNISTD_H}
+
+/* Define to 1 if you have the <windows.h> header file. */
+#cmakedefine HAVE_WINDOWS_H ${HAVE_WINDOWS_H}
+
+/* Define to 1 if you have the ANSI C header files. */
+#define STDC_HEADERS 1
+
+/* Define WORDS_BIGENDIAN to 1 if your processor stores words with the most
+   significant byte first (like Motorola and SPARC, unlike Intel and VAX). */
+#cmakedefine WORDS_BIGENDIAN
+
+#if defined(_MSC_VER) && (_MSC_VER <= 1900)
+typedef __int64 ssize_t;
+#endif
+
+#endif

snappy-test.cc

@@ -36,6 +36,7 @@
 #include <windows.h>
 #endif
 
+#include "snappy.h"
 #include "snappy-test.h"
 
 #include <algorithm>