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Added stripped version of google snappy (excluded only the unit tests)

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1 parent f370a84 commit 3b79d41c7e2d91f85350f96756b29aaa11e0ecf3 @fdmanana committed May 2, 2011
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  1. +1 −0 c_src/google-snappy/AUTHORS
  2. +28 −0 c_src/google-snappy/COPYING
  3. +249 −0 c_src/google-snappy/ChangeLog
  4. +365 −0 c_src/google-snappy/INSTALL
  5. +15 −0 c_src/google-snappy/Makefile.am
  6. +757 −0 c_src/google-snappy/Makefile.in
  7. +17 −0 c_src/google-snappy/NEWS
  8. +135 −0 c_src/google-snappy/README
  9. +956 −0 c_src/google-snappy/aclocal.m4
  10. +7 −0 c_src/google-snappy/autogen.sh
  11. +1,502 −0 c_src/google-snappy/config.guess
  12. +95 −0 c_src/google-snappy/config.h.in
  13. +1,714 −0 c_src/google-snappy/config.sub
  14. +17,390 −0 c_src/google-snappy/configure
  15. +85 −0 c_src/google-snappy/configure.ac
  16. +630 −0 c_src/google-snappy/depcomp
  17. +520 −0 c_src/google-snappy/install-sh
  18. +8,413 −0 c_src/google-snappy/ltmain.sh
  19. +7,377 −0 c_src/google-snappy/m4/libtool.m4
  20. +368 −0 c_src/google-snappy/m4/ltoptions.m4
  21. +123 −0 c_src/google-snappy/m4/ltsugar.m4
  22. +23 −0 c_src/google-snappy/m4/ltversion.m4
  23. +92 −0 c_src/google-snappy/m4/lt~obsolete.m4
  24. +376 −0 c_src/google-snappy/missing
  25. +150 −0 c_src/google-snappy/snappy-internal.h
  26. +72 −0 c_src/google-snappy/snappy-sinksource.cc
  27. +136 −0 c_src/google-snappy/snappy-sinksource.h
  28. +42 −0 c_src/google-snappy/snappy-stubs-internal.cc
  29. +477 −0 c_src/google-snappy/snappy-stubs-internal.h
  30. +85 −0 c_src/google-snappy/snappy-stubs-public.h
  31. +85 −0 c_src/google-snappy/snappy-stubs-public.h.in
  32. +1,015 −0 c_src/google-snappy/snappy.cc
  33. +155 −0 c_src/google-snappy/snappy.h
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1 c_src/google-snappy/AUTHORS
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+opensource@google.com
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28 c_src/google-snappy/COPYING
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+Copyright 2011, Google Inc.
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+ * Redistributions of source code must retain the above copyright
+notice, this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the following disclaimer
+in the documentation and/or other materials provided with the
+distribution.
+ * Neither the name of Google Inc. nor the names of its
+contributors may be used to endorse or promote products derived from
+this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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249 c_src/google-snappy/ChangeLog
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+------------------------------------------------------------------------
+r18 | snappy.mirrorbot@gmail.com | 2011-03-24 20:15:54 +0100 (Thu, 24 Mar 2011) | 11 lines
+
+
+Fix a microbenchmark crash on mingw32; seemingly %lld is not universally
+supported on Windows, and %I64d is recommended instead.
+
+R=csilvers
+DELTA=6 (5 added, 0 deleted, 1 changed)
+
+
+Revision created by MOE tool push_codebase.
+MOE_MIGRATION=1034
+
+------------------------------------------------------------------------
+r17 | snappy.mirrorbot@gmail.com | 2011-03-24 20:15:27 +0100 (Thu, 24 Mar 2011) | 13 lines
+
+
+Fix public issue #19: Fix unit test when Google Test is installed but the
+gflags package isn't (Google Test is not properly initialized).
+
+Patch by Martin Gieseking.
+
+R=csilvers
+DELTA=2 (1 added, 0 deleted, 1 changed)
+
+
+Revision created by MOE tool push_codebase.
+MOE_MIGRATION=1033
+
+------------------------------------------------------------------------
+r16 | snappy.mirrorbot@gmail.com | 2011-03-24 20:13:57 +0100 (Thu, 24 Mar 2011) | 15 lines
+
+
+Make the unit test work on systems without mmap(). This is required for,
+among others, Windows support. For Windows in specific, we could have used
+CreateFileMapping/MapViewOfFile, but this should at least get us a bit closer
+to compiling, and is of course also relevant for embedded systems with no MMU.
+
+(Part 2/2)
+
+R=csilvers
+DELTA=15 (12 added, 3 deleted, 0 changed)
+
+
+Revision created by MOE tool push_codebase.
+MOE_MIGRATION=1032
+
+------------------------------------------------------------------------
+r15 | snappy.mirrorbot@gmail.com | 2011-03-24 20:12:27 +0100 (Thu, 24 Mar 2011) | 15 lines
+
+
+Make the unit test work on systems without mmap(). This is required for,
+among others, Windows support. For Windows in specific, we could have used
+CreateFileMapping/MapViewOfFile, but this should at least get us a bit closer
+to compiling, and is of course also relevant for embedded systems with no MMU.
+
+(Part 1/2)
+
+R=csilvers
+DELTA=9 (8 added, 0 deleted, 1 changed)
+
+
+Revision created by MOE tool push_codebase.
+MOE_MIGRATION=1031
+
+------------------------------------------------------------------------
+r14 | snappy.mirrorbot@gmail.com | 2011-03-24 00:17:36 +0100 (Thu, 24 Mar 2011) | 14 lines
+
+
+Fix public issue #12: Don't keep autogenerated auto* files in Subversion;
+it causes problems with others sending patches etc..
+
+We can't get this 100% hermetic anyhow, due to files like lt~obsolete.m4,
+so we can just as well go cleanly in the other direction.
+
+R=csilvers
+DELTA=21038 (0 added, 21036 deleted, 2 changed)
+
+
+Revision created by MOE tool push_codebase.
+MOE_MIGRATION=1012
+
+------------------------------------------------------------------------
+r13 | snappy.mirrorbot@gmail.com | 2011-03-23 18:50:49 +0100 (Wed, 23 Mar 2011) | 11 lines
+
+
+Fix public issue tracker bug #3: Call AC_SUBST([LIBTOOL_DEPS]), or the rule
+to rebuild libtool in Makefile.am won't work.
+
+R=csilvers
+DELTA=1 (1 added, 0 deleted, 0 changed)
+
+
+Revision created by MOE tool push_codebase.
+MOE_MIGRATION=997
+
+------------------------------------------------------------------------
+r12 | snappy.mirrorbot@gmail.com | 2011-03-23 12:16:39 +0100 (Wed, 23 Mar 2011) | 11 lines
+
+
+Fix public issue #10: Don't add GTEST_CPPFLAGS to snappy_unittest_CXXFLAGS;
+it's not needed (CPPFLAGS are always included when compiling).
+
+R=csilvers
+DELTA=1 (0 added, 1 deleted, 0 changed)
+
+
+Revision created by MOE tool push_codebase.
+MOE_MIGRATION=994
+
+------------------------------------------------------------------------
+r11 | snappy.mirrorbot@gmail.com | 2011-03-23 12:16:18 +0100 (Wed, 23 Mar 2011) | 11 lines
+
+
+Fix public issue #9: Add -Wall -Werror to automake flags.
+(This concerns automake itself, not the C++ compiler.)
+
+R=csilvers
+DELTA=4 (3 added, 0 deleted, 1 changed)
+
+
+Revision created by MOE tool push_codebase.
+MOE_MIGRATION=993
+
+------------------------------------------------------------------------
+r10 | snappy.mirrorbot@gmail.com | 2011-03-23 12:13:37 +0100 (Wed, 23 Mar 2011) | 10 lines
+
+
+Fix a typo in the Snappy README file.
+
+R=csilvers
+DELTA=1 (0 added, 0 deleted, 1 changed)
+
+
+Revision created by MOE tool push_codebase.
+MOE_MIGRATION=992
+
+------------------------------------------------------------------------
+r9 | snappy.mirrorbot@gmail.com | 2011-03-23 12:13:13 +0100 (Wed, 23 Mar 2011) | 11 lines
+
+
+Fix public issue #6: Add a --with-gflags for disabling gflags autodetection
+and using a manually given setting (use/don't use) instead.
+
+R=csilvers
+DELTA=16 (13 added, 0 deleted, 3 changed)
+
+
+Revision created by MOE tool push_codebase.
+MOE_MIGRATION=991
+
+------------------------------------------------------------------------
+r8 | snappy.mirrorbot@gmail.com | 2011-03-23 12:12:44 +0100 (Wed, 23 Mar 2011) | 12 lines
+
+
+Fix public issue #5: Replace the EXTRA_LIBSNAPPY_LDFLAGS setup with something
+slightly more standard, that also doesn't leak libtool command-line into
+configure.ac.
+
+R=csilvers
+DELTA=7 (0 added, 4 deleted, 3 changed)
+
+
+Revision created by MOE tool push_codebase.
+MOE_MIGRATION=990
+
+------------------------------------------------------------------------
+r7 | snappy.mirrorbot@gmail.com | 2011-03-23 12:12:22 +0100 (Wed, 23 Mar 2011) | 10 lines
+
+
+Fix public issue #4: Properly quote all macro arguments in configure.ac.
+
+R=csilvers
+DELTA=16 (0 added, 0 deleted, 16 changed)
+
+
+Revision created by MOE tool push_codebase.
+MOE_MIGRATION=989
+
+------------------------------------------------------------------------
+r6 | snappy.mirrorbot@gmail.com | 2011-03-23 12:11:54 +0100 (Wed, 23 Mar 2011) | 11 lines
+
+
+Fix public issue #7: Don't use internal variables named ac_*, as those belong
+to autoconf's namespace.
+
+R=csilvers
+DELTA=6 (0 added, 0 deleted, 6 changed)
+
+
+Revision created by MOE tool push_codebase.
+MOE_MIGRATION=988
+
+------------------------------------------------------------------------
+r5 | snappy.mirrorbot@gmail.com | 2011-03-23 12:11:09 +0100 (Wed, 23 Mar 2011) | 10 lines
+
+
+Add missing licensing headers to a few files. (Part 2/2.)
+
+R=csilvers
+DELTA=12 (12 added, 0 deleted, 0 changed)
+
+
+Revision created by MOE tool push_codebase.
+MOE_MIGRATION=987
+
+------------------------------------------------------------------------
+r4 | snappy.mirrorbot@gmail.com | 2011-03-23 12:10:39 +0100 (Wed, 23 Mar 2011) | 10 lines
+
+
+Add mising licensing headers to a few files. (Part 1/2.)
+
+R=csilvers
+DELTA=24 (24 added, 0 deleted, 0 changed)
+
+
+Revision created by MOE tool push_codebase.
+MOE_MIGRATION=986
+
+------------------------------------------------------------------------
+r3 | snappy.mirrorbot@gmail.com | 2011-03-23 12:10:04 +0100 (Wed, 23 Mar 2011) | 11 lines
+
+
+Use the correct license file for the Apache 2.0 license;
+spotted by Florian Weimer.
+
+R=csilvers
+DELTA=202 (174 added, 0 deleted, 28 changed)
+
+
+Revision created by MOE tool push_codebase.
+MOE_MIGRATION=985
+
+------------------------------------------------------------------------
+r2 | snappy.mirrorbot@gmail.com | 2011-03-18 18:14:15 +0100 (Fri, 18 Mar 2011) | 6 lines
+
+
+
+
+Revision created by MOE tool push_codebase.
+MOE_MIGRATION=
+
+------------------------------------------------------------------------
+r1 | sesse@google.com | 2011-03-18 18:13:52 +0100 (Fri, 18 Mar 2011) | 2 lines
+
+Create trunk directory.
+
+------------------------------------------------------------------------
View
365 c_src/google-snappy/INSTALL
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+Installation Instructions
+*************************
+
+Copyright (C) 1994, 1995, 1996, 1999, 2000, 2001, 2002, 2004, 2005,
+2006, 2007, 2008, 2009 Free Software Foundation, Inc.
+
+ Copying and distribution of this file, with or without modification,
+are permitted in any medium without royalty provided the copyright
+notice and this notice are preserved. This file is offered as-is,
+without warranty of any kind.
+
+Basic Installation
+==================
+
+ Briefly, the shell commands `./configure; make; make install' should
+configure, build, and install this package. The following
+more-detailed instructions are generic; see the `README' file for
+instructions specific to this package. Some packages provide this
+`INSTALL' file but do not implement all of the features documented
+below. The lack of an optional feature in a given package is not
+necessarily a bug. More recommendations for GNU packages can be found
+in *note Makefile Conventions: (standards)Makefile Conventions.
+
+ The `configure' shell script attempts to guess correct values for
+various system-dependent variables used during compilation. It uses
+those values to create a `Makefile' in each directory of the package.
+It may also create one or more `.h' files containing system-dependent
+definitions. Finally, it creates a shell script `config.status' that
+you can run in the future to recreate the current configuration, and a
+file `config.log' containing compiler output (useful mainly for
+debugging `configure').
+
+ It can also use an optional file (typically called `config.cache'
+and enabled with `--cache-file=config.cache' or simply `-C') that saves
+the results of its tests to speed up reconfiguring. Caching is
+disabled by default to prevent problems with accidental use of stale
+cache files.
+
+ If you need to do unusual things to compile the package, please try
+to figure out how `configure' could check whether to do them, and mail
+diffs or instructions to the address given in the `README' so they can
+be considered for the next release. If you are using the cache, and at
+some point `config.cache' contains results you don't want to keep, you
+may remove or edit it.
+
+ The file `configure.ac' (or `configure.in') is used to create
+`configure' by a program called `autoconf'. You need `configure.ac' if
+you want to change it or regenerate `configure' using a newer version
+of `autoconf'.
+
+ The simplest way to compile this package is:
+
+ 1. `cd' to the directory containing the package's source code and type
+ `./configure' to configure the package for your system.
+
+ Running `configure' might take a while. While running, it prints
+ some messages telling which features it is checking for.
+
+ 2. Type `make' to compile the package.
+
+ 3. Optionally, type `make check' to run any self-tests that come with
+ the package, generally using the just-built uninstalled binaries.
+
+ 4. Type `make install' to install the programs and any data files and
+ documentation. When installing into a prefix owned by root, it is
+ recommended that the package be configured and built as a regular
+ user, and only the `make install' phase executed with root
+ privileges.
+
+ 5. Optionally, type `make installcheck' to repeat any self-tests, but
+ this time using the binaries in their final installed location.
+ This target does not install anything. Running this target as a
+ regular user, particularly if the prior `make install' required
+ root privileges, verifies that the installation completed
+ correctly.
+
+ 6. You can remove the program binaries and object files from the
+ source code directory by typing `make clean'. To also remove the
+ files that `configure' created (so you can compile the package for
+ a different kind of computer), type `make distclean'. There is
+ also a `make maintainer-clean' target, but that is intended mainly
+ for the package's developers. If you use it, you may have to get
+ all sorts of other programs in order to regenerate files that came
+ with the distribution.
+
+ 7. Often, you can also type `make uninstall' to remove the installed
+ files again. In practice, not all packages have tested that
+ uninstallation works correctly, even though it is required by the
+ GNU Coding Standards.
+
+ 8. Some packages, particularly those that use Automake, provide `make
+ distcheck', which can by used by developers to test that all other
+ targets like `make install' and `make uninstall' work correctly.
+ This target is generally not run by end users.
+
+Compilers and Options
+=====================
+
+ Some systems require unusual options for compilation or linking that
+the `configure' script does not know about. Run `./configure --help'
+for details on some of the pertinent environment variables.
+
+ You can give `configure' initial values for configuration parameters
+by setting variables in the command line or in the environment. Here
+is an example:
+
+ ./configure CC=c99 CFLAGS=-g LIBS=-lposix
+
+ *Note Defining Variables::, for more details.
+
+Compiling For Multiple Architectures
+====================================
+
+ You can compile the package for more than one kind of computer at the
+same time, by placing the object files for each architecture in their
+own directory. To do this, you can use GNU `make'. `cd' to the
+directory where you want the object files and executables to go and run
+the `configure' script. `configure' automatically checks for the
+source code in the directory that `configure' is in and in `..'. This
+is known as a "VPATH" build.
+
+ With a non-GNU `make', it is safer to compile the package for one
+architecture at a time in the source code directory. After you have
+installed the package for one architecture, use `make distclean' before
+reconfiguring for another architecture.
+
+ On MacOS X 10.5 and later systems, you can create libraries and
+executables that work on multiple system types--known as "fat" or
+"universal" binaries--by specifying multiple `-arch' options to the
+compiler but only a single `-arch' option to the preprocessor. Like
+this:
+
+ ./configure CC="gcc -arch i386 -arch x86_64 -arch ppc -arch ppc64" \
+ CXX="g++ -arch i386 -arch x86_64 -arch ppc -arch ppc64" \
+ CPP="gcc -E" CXXCPP="g++ -E"
+
+ This is not guaranteed to produce working output in all cases, you
+may have to build one architecture at a time and combine the results
+using the `lipo' tool if you have problems.
+
+Installation Names
+==================
+
+ By default, `make install' installs the package's commands under
+`/usr/local/bin', include files under `/usr/local/include', etc. You
+can specify an installation prefix other than `/usr/local' by giving
+`configure' the option `--prefix=PREFIX', where PREFIX must be an
+absolute file name.
+
+ You can specify separate installation prefixes for
+architecture-specific files and architecture-independent files. If you
+pass the option `--exec-prefix=PREFIX' to `configure', the package uses
+PREFIX as the prefix for installing programs and libraries.
+Documentation and other data files still use the regular prefix.
+
+ In addition, if you use an unusual directory layout you can give
+options like `--bindir=DIR' to specify different values for particular
+kinds of files. Run `configure --help' for a list of the directories
+you can set and what kinds of files go in them. In general, the
+default for these options is expressed in terms of `${prefix}', so that
+specifying just `--prefix' will affect all of the other directory
+specifications that were not explicitly provided.
+
+ The most portable way to affect installation locations is to pass the
+correct locations to `configure'; however, many packages provide one or
+both of the following shortcuts of passing variable assignments to the
+`make install' command line to change installation locations without
+having to reconfigure or recompile.
+
+ The first method involves providing an override variable for each
+affected directory. For example, `make install
+prefix=/alternate/directory' will choose an alternate location for all
+directory configuration variables that were expressed in terms of
+`${prefix}'. Any directories that were specified during `configure',
+but not in terms of `${prefix}', must each be overridden at install
+time for the entire installation to be relocated. The approach of
+makefile variable overrides for each directory variable is required by
+the GNU Coding Standards, and ideally causes no recompilation.
+However, some platforms have known limitations with the semantics of
+shared libraries that end up requiring recompilation when using this
+method, particularly noticeable in packages that use GNU Libtool.
+
+ The second method involves providing the `DESTDIR' variable. For
+example, `make install DESTDIR=/alternate/directory' will prepend
+`/alternate/directory' before all installation names. The approach of
+`DESTDIR' overrides is not required by the GNU Coding Standards, and
+does not work on platforms that have drive letters. On the other hand,
+it does better at avoiding recompilation issues, and works well even
+when some directory options were not specified in terms of `${prefix}'
+at `configure' time.
+
+Optional Features
+=================
+
+ If the package supports it, you can cause programs to be installed
+with an extra prefix or suffix on their names by giving `configure' the
+option `--program-prefix=PREFIX' or `--program-suffix=SUFFIX'.
+
+ Some packages pay attention to `--enable-FEATURE' options to
+`configure', where FEATURE indicates an optional part of the package.
+They may also pay attention to `--with-PACKAGE' options, where PACKAGE
+is something like `gnu-as' or `x' (for the X Window System). The
+`README' should mention any `--enable-' and `--with-' options that the
+package recognizes.
+
+ For packages that use the X Window System, `configure' can usually
+find the X include and library files automatically, but if it doesn't,
+you can use the `configure' options `--x-includes=DIR' and
+`--x-libraries=DIR' to specify their locations.
+
+ Some packages offer the ability to configure how verbose the
+execution of `make' will be. For these packages, running `./configure
+--enable-silent-rules' sets the default to minimal output, which can be
+overridden with `make V=1'; while running `./configure
+--disable-silent-rules' sets the default to verbose, which can be
+overridden with `make V=0'.
+
+Particular systems
+==================
+
+ On HP-UX, the default C compiler is not ANSI C compatible. If GNU
+CC is not installed, it is recommended to use the following options in
+order to use an ANSI C compiler:
+
+ ./configure CC="cc -Ae -D_XOPEN_SOURCE=500"
+
+and if that doesn't work, install pre-built binaries of GCC for HP-UX.
+
+ On OSF/1 a.k.a. Tru64, some versions of the default C compiler cannot
+parse its `<wchar.h>' header file. The option `-nodtk' can be used as
+a workaround. If GNU CC is not installed, it is therefore recommended
+to try
+
+ ./configure CC="cc"
+
+and if that doesn't work, try
+
+ ./configure CC="cc -nodtk"
+
+ On Solaris, don't put `/usr/ucb' early in your `PATH'. This
+directory contains several dysfunctional programs; working variants of
+these programs are available in `/usr/bin'. So, if you need `/usr/ucb'
+in your `PATH', put it _after_ `/usr/bin'.
+
+ On Haiku, software installed for all users goes in `/boot/common',
+not `/usr/local'. It is recommended to use the following options:
+
+ ./configure --prefix=/boot/common
+
+Specifying the System Type
+==========================
+
+ There may be some features `configure' cannot figure out
+automatically, but needs to determine by the type of machine the package
+will run on. Usually, assuming the package is built to be run on the
+_same_ architectures, `configure' can figure that out, but if it prints
+a message saying it cannot guess the machine type, give it the
+`--build=TYPE' option. TYPE can either be a short name for the system
+type, such as `sun4', or a canonical name which has the form:
+
+ CPU-COMPANY-SYSTEM
+
+where SYSTEM can have one of these forms:
+
+ OS
+ KERNEL-OS
+
+ See the file `config.sub' for the possible values of each field. If
+`config.sub' isn't included in this package, then this package doesn't
+need to know the machine type.
+
+ If you are _building_ compiler tools for cross-compiling, you should
+use the option `--target=TYPE' to select the type of system they will
+produce code for.
+
+ If you want to _use_ a cross compiler, that generates code for a
+platform different from the build platform, you should specify the
+"host" platform (i.e., that on which the generated programs will
+eventually be run) with `--host=TYPE'.
+
+Sharing Defaults
+================
+
+ If you want to set default values for `configure' scripts to share,
+you can create a site shell script called `config.site' that gives
+default values for variables like `CC', `cache_file', and `prefix'.
+`configure' looks for `PREFIX/share/config.site' if it exists, then
+`PREFIX/etc/config.site' if it exists. Or, you can set the
+`CONFIG_SITE' environment variable to the location of the site script.
+A warning: not all `configure' scripts look for a site script.
+
+Defining Variables
+==================
+
+ Variables not defined in a site shell script can be set in the
+environment passed to `configure'. However, some packages may run
+configure again during the build, and the customized values of these
+variables may be lost. In order to avoid this problem, you should set
+them in the `configure' command line, using `VAR=value'. For example:
+
+ ./configure CC=/usr/local2/bin/gcc
+
+causes the specified `gcc' to be used as the C compiler (unless it is
+overridden in the site shell script).
+
+Unfortunately, this technique does not work for `CONFIG_SHELL' due to
+an Autoconf bug. Until the bug is fixed you can use this workaround:
+
+ CONFIG_SHELL=/bin/bash /bin/bash ./configure CONFIG_SHELL=/bin/bash
+
+`configure' Invocation
+======================
+
+ `configure' recognizes the following options to control how it
+operates.
+
+`--help'
+`-h'
+ Print a summary of all of the options to `configure', and exit.
+
+`--help=short'
+`--help=recursive'
+ Print a summary of the options unique to this package's
+ `configure', and exit. The `short' variant lists options used
+ only in the top level, while the `recursive' variant lists options
+ also present in any nested packages.
+
+`--version'
+`-V'
+ Print the version of Autoconf used to generate the `configure'
+ script, and exit.
+
+`--cache-file=FILE'
+ Enable the cache: use and save the results of the tests in FILE,
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View
17 c_src/google-snappy/NEWS
@@ -0,0 +1,17 @@
+Snappy v1.0.1, March 25th 2011:
+
+This is a maintenance release, mostly containing minor fixes.
+There is no new functionality. The most important fixes include:
+
+ * The COPYING file and all licensing headers now correctly state that
+ Snappy is licensed under the Apache 2.0 license.
+
+ * snappy_unittest should now compile natively under Windows,
+ as well as on embedded systems with no mmap().
+
+ * Various autotools nits have been fixed.
+
+
+Snappy v1.0, March 17th 2011:
+
+ * Initial version.
View
135 c_src/google-snappy/README
@@ -0,0 +1,135 @@
+Snappy, a fast compressor/decompressor.
+
+
+Introduction
+============
+
+Snappy is a compression/decompression library. It does not aim for maximum
+compression, or compatibility with any other compression library; instead,
+it aims for very high speeds and reasonable compression. For instance,
+compared to the fastest mode of zlib, Snappy is an order of magnitude faster
+for most inputs, but the resulting compressed files are anywhere from 20% to
+100% bigger. (For more information, see "Performance", below.)
+
+Snappy has the following properties:
+
+ * Fast: Compression speeds at 250 MB/sec and beyond, with no assembler code.
+ See "Performance" below.
+ * Stable: Over the last few years, Snappy has compressed and decompressed
+ petabytes of data in Google's production environment. The Snappy bitstream
+ format is stable and will not change between versions.
+ * Robust: The Snappy decompressor is designed not to crash in the face of
+ corrupted or malicious input.
+ * Free and open source software: Snappy is licensed under a BSD-type license.
+ For more information, see the included COPYING file.
+
+Snappy has previously been called "Zippy" in some Google presentations
+and the like.
+
+
+Performance
+===========
+
+Snappy is intended to be fast. On a single core of a Core i7 processor
+in 64-bit mode, it compresses at about 250 MB/sec or more and decompresses at
+about 500 MB/sec or more. (These numbers are for the slowest inputs in our
+benchmark suite; others are much faster.) In our tests, Snappy usually
+is faster than algorithms in the same class (e.g. LZO, LZF, FastLZ, QuickLZ,
+etc.) while achieving comparable compression ratios.
+
+Typical compression ratios (based on the benchmark suite) are about 1.5-1.7x
+for plain text, about 2-4x for HTML, and of course 1.0x for JPEGs, PNGs and
+other already-compressed data. Similar numbers for zlib in its fastest mode
+are 2.6-2.8x, 3-7x and 1.0x, respectively. More sophisticated algorithms are
+capable of achieving yet higher compression rates, although usually at the
+expense of speed. Of course, compression ratio will vary significantly with
+the input.
+
+Although Snappy should be fairly portable, it is primarily optimized
+for 64-bit x86-compatible processors, and may run slower in other environments.
+In particular:
+
+ - Snappy uses 64-bit operations in several places to process more data at
+ once than would otherwise be possible.
+ - Snappy assumes unaligned 32- and 64-bit loads and stores are cheap.
+ On some platforms, these must be emulated with single-byte loads
+ and stores, which is much slower.
+ - Snappy assumes little-endian throughout, and needs to byte-swap data in
+ several places if running on a big-endian platform.
+
+Experience has shown that even heavily tuned code can be improved.
+Performance optimizations, whether for 64-bit x86 or other platforms,
+are of course most welcome; see "Contact", below.
+
+
+Usage
+=====
+
+Note that Snappy, both the implementation and the main interface,
+is written in C++. However, several third-party bindings to other languages
+are available; see the Google Code page at http://code.google.com/p/snappy/
+for more information. Also, if you want to use Snappy from C code, you can
+use the included C bindings in snappy-c.h.
+
+To use Snappy from your own C++ program, include the file "snappy.h" from
+your calling file, and link against the compiled library.
+
+There are many ways to call Snappy, but the simplest possible is
+
+ snappy::Compress(input, &output);
+
+and similarly
+
+ snappy::Uncompress(input, &output);
+
+where "input" and "output" are both instances of std::string.
+
+There are other interfaces that are more flexible in various ways, including
+support for custom (non-array) input sources. See the header file for more
+information.
+
+
+Tests and benchmarks
+====================
+
+When you compile Snappy, snappy_unittest is compiled in addition to the
+library itself. You do not need it to use the compressor from your own library,
+but it contains several useful components for Snappy development.
+
+First of all, it contains unit tests, verifying correctness on your machine in
+various scenarios. If you want to change or optimize Snappy, please run the
+tests to verify you have not broken anything. Note that if you have the
+Google Test library installed, unit test behavior (especially failures) will be
+significantly more user-friendly. You can find Google Test at
+
+ http://code.google.com/p/googletest/
+
+You probably also want the gflags library for handling of command-line flags;
+you can find it at
+
+ http://code.google.com/p/google-gflags/
+
+In addition to the unit tests, snappy contains microbenchmarks used to
+tune compression and decompression performance. These are automatically run
+before the unit tests, but you can disable them using the flag
+--run_microbenchmarks=false if you have gflags installed (otherwise you will
+need to edit the source).
+
+Finally, snappy can benchmark Snappy against a few other compression libraries
+(zlib, LZO, LZF, FastLZ and QuickLZ), if they were detected at configure time.
+To benchmark using a given file, give the compression algorithm you want to test
+Snappy against (e.g. --zlib) and then a list of one or more file names on the
+command line. The testdata/ directory contains the files used by the
+microbenchmark, which should provide a reasonably balanced starting point for
+benchmarking. (Note that baddata[1-3].snappy are not intended as benchmarks; they
+are used to verify correctness in the presence of corrupted data in the unit
+test.)
+
+
+Contact
+=======
+
+Snappy is distributed through Google Code. For the latest version, a bug tracker,
+and other information, see
+
+ http://code.google.com/p/snappy/
View
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+# -----------------------
+AC_DEFUN([_AM_MANGLE_OPTION],
+[[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
+
+# _AM_SET_OPTION(NAME)
+# ------------------------------
+# Set option NAME. Presently that only means defining a flag for this option.
+AC_DEFUN([_AM_SET_OPTION],
+[m4_define(_AM_MANGLE_OPTION([$1]), 1)])
+
+# _AM_SET_OPTIONS(OPTIONS)
+# ----------------------------------
+# OPTIONS is a space-separated list of Automake options.
+AC_DEFUN([_AM_SET_OPTIONS],
+[m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
+
+# _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
+# -------------------------------------------
+# Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
+AC_DEFUN([_AM_IF_OPTION],
+[m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
+
+# Check to make sure that the build environment is sane. -*- Autoconf -*-
+
+# Copyright (C) 1996, 1997, 2000, 2001, 2003, 2005, 2008
+# Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# serial 5
+
+# AM_SANITY_CHECK
+# ---------------
+AC_DEFUN([AM_SANITY_CHECK],
+[AC_MSG_CHECKING([whether build environment is sane])
+# Just in case
+sleep 1
+echo timestamp > conftest.file
+# Reject unsafe characters in $srcdir or the absolute working directory
+# name. Accept space and tab only in the latter.
+am_lf='
+'
+case `pwd` in
+ *[[\\\"\#\$\&\'\`$am_lf]]*)
+ AC_MSG_ERROR([unsafe absolute working directory name]);;
+esac
+case $srcdir in
+ *[[\\\"\#\$\&\'\`$am_lf\ \ ]]*)
+ AC_MSG_ERROR([unsafe srcdir value: `$srcdir']);;
+esac
+
+# Do `set' in a subshell so we don't clobber the current shell's
+# arguments. Must try -L first in case configure is actually a
+# symlink; some systems play weird games with the mod time of symlinks
+# (eg FreeBSD returns the mod time of the symlink's containing
+# directory).
+if (
+ set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
+ if test "$[*]" = "X"; then
+ # -L didn't work.
+ set X `ls -t "$srcdir/configure" conftest.file`
+ fi
+ rm -f conftest.file
+ if test "$[*]" != "X $srcdir/configure conftest.file" \
+ && test "$[*]" != "X conftest.file $srcdir/configure"; then
+
+ # If neither matched, then we have a broken ls. This can happen
+ # if, for instance, CONFIG_SHELL is bash and it inherits a
+ # broken ls alias from the environment. This has actually
+ # happened. Such a system could not be considered "sane".
+ AC_MSG_ERROR([ls -t appears to fail. Make sure there is not a broken
+alias in your environment])
+ fi
+
+ test "$[2]" = conftest.file
+ )
+then
+ # Ok.
+ :
+else
+ AC_MSG_ERROR([newly created file is older than distributed files!
+Check your system clock])
+fi
+AC_MSG_RESULT(yes)])
+
+# Copyright (C) 2001, 2003, 2005 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# AM_PROG_INSTALL_STRIP
+# ---------------------
+# One issue with vendor `install' (even GNU) is that you can't
+# specify the program used to strip binaries. This is especially
+# annoying in cross-compiling environments, where the build's strip
+# is unlikely to handle the host's binaries.
+# Fortunately install-sh will honor a STRIPPROG variable, so we
+# always use install-sh in `make install-strip', and initialize
+# STRIPPROG with the value of the STRIP variable (set by the user).
+AC_DEFUN([AM_PROG_INSTALL_STRIP],
+[AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
+# Installed binaries are usually stripped using `strip' when the user
+# run `make install-strip'. However `strip' might not be the right
+# tool to use in cross-compilation environments, therefore Automake
+# will honor the `STRIP' environment variable to overrule this program.
+dnl Don't test for $cross_compiling = yes, because it might be `maybe'.
+if test "$cross_compiling" != no; then
+ AC_CHECK_TOOL([STRIP], [strip], :)
+fi
+INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
+AC_SUBST([INSTALL_STRIP_PROGRAM])])
+
+# Copyright (C) 2006, 2008 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# serial 2
+
+# _AM_SUBST_NOTMAKE(VARIABLE)
+# ---------------------------
+# Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
+# This macro is traced by Automake.
+AC_DEFUN([_AM_SUBST_NOTMAKE])
+
+# AM_SUBST_NOTMAKE(VARIABLE)
+# ---------------------------
+# Public sister of _AM_SUBST_NOTMAKE.
+AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
+
+# Check how to create a tarball. -*- Autoconf -*-
+
+# Copyright (C) 2004, 2005 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# serial 2
+
+# _AM_PROG_TAR(FORMAT)
+# --------------------
+# Check how to create a tarball in format FORMAT.
+# FORMAT should be one of `v7', `ustar', or `pax'.
+#
+# Substitute a variable $(am__tar) that is a command
+# writing to stdout a FORMAT-tarball containing the directory
+# $tardir.
+# tardir=directory && $(am__tar) > result.tar
+#
+# Substitute a variable $(am__untar) that extract such
+# a tarball read from stdin.
+# $(am__untar) < result.tar
+AC_DEFUN([_AM_PROG_TAR],
+[# Always define AMTAR for backward compatibility.
+AM_MISSING_PROG([AMTAR], [tar])
+m4_if([$1], [v7],
+ [am__tar='${AMTAR} chof - "$$tardir"'; am__untar='${AMTAR} xf -'],
+ [m4_case([$1], [ustar],, [pax],,
+ [m4_fatal([Unknown tar format])])
+AC_MSG_CHECKING([how to create a $1 tar archive])
+# Loop over all known methods to create a tar archive until one works.
+_am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
+_am_tools=${am_cv_prog_tar_$1-$_am_tools}
+# Do not fold the above two line into one, because Tru64 sh and
+# Solaris sh will not grok spaces in the rhs of `-'.
+for _am_tool in $_am_tools
+do
+ case $_am_tool in
+ gnutar)
+ for _am_tar in tar gnutar gtar;
+ do
+ AM_RUN_LOG([$_am_tar --version]) && break
+ done
+ am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
+ am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
+ am__untar="$_am_tar -xf -"
+ ;;
+ plaintar)
+ # Must skip GNU tar: if it does not support --format= it doesn't create
+ # ustar tarball either.
+ (tar --version) >/dev/null 2>&1 && continue
+ am__tar='tar chf - "$$tardir"'
+ am__tar_='tar chf - "$tardir"'
+ am__untar='tar xf -'
+ ;;
+ pax)
+ am__tar='pax -L -x $1 -w "$$tardir"'
+ am__tar_='pax -L -x $1 -w "$tardir"'
+ am__untar='pax -r'
+ ;;
+ cpio)
+ am__tar='find "$$tardir" -print | cpio -o -H $1 -L'