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-<head>
-<title>How To Use Gflags (formerly Google Commandline Flags)</title>
-
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-
-<h1>How To Use gflags (formerly Google Commandline Flags)</h1>
-<small>(as of
-<script type=text/javascript>
- var lm = new Date(document.lastModified);
- document.write(lm.toDateString());
-</script>)
-</small>
-<br>
-
-<blockquote><dl>
- <dt> Table of contents </dt>
- <dd> <a href="#intro">Introduction</a> </dd>
- <dd> <a href="#cmake">Finding and Linking to gflags using CMake</a></dd>
- <dd> <a href="#define">DEFINE: Defining Flags In Program</A> </dd>
- <dd> <a href="#using">Accessing the Flag</A> </dd>
- <dd> <a href="#declare">DECLARE: Using the Flag in a Different File</a> </dd>
- <dd> <a href="#validate">RegisterFlagValidator: Sanity-checking Flag Values</a> </dd>
- <dd> <a href="#together">Putting It Together: How to Set Up Flags</a> </dd>
- <dd> <a href="#commandline">Setting Flags on the Command Line</a> </dd>
- <dd> <a href="#varz">Setting Flags at Runtime</a> </dd>
- <dd> <a href="#default">Changing the Default Flag Value</a> </dd>
- <dd> <a href="#special">Special Flags</a> </dd>
- <dd> <a href="#api">The API</a> </dd>
- <dd> <br/> </dd>
-</dl></blockquote>
-
-<h2> <A NAME=intro>Introduction, and Comparison to Other Commandline
- Flags Libraries</A> </h2>
-
-<p><b>Commandline flags</b> are flags that users specify on the
-command line when they run an executable. In the command</p>
-<pre>
- fgrep -l -f /var/tmp/foo johannes brahms
-</pre>
-<p><code>-l</code> and <code>-f /var/tmp/foo</code> are the two
-commandline flags. (<code>johannes</code> and <code>brahms</code>,
-which don't start with a dash, are <b>commandline arguments</b>.)</p>
-
-<p>Typically, an application lists what flags the user is allowed to
-pass in, and what arguments they take -- in this example,
-<code>-l</code> takes no argument, and <code>-f</code> takes a
-string (in particular, a filename) as an argument. Users can use a
-library to help parse the commandline and store the flags in some data
-structure.</p>
-
-<p>Gflags, the commandline flags library used within Google,
-differs from other libraries,
-such as <code>getopt()</code>, in that flag definitions can be
-scattered around the source code, and not just listed in one place
-such as <code>main()</code>. In practice, this means that a single
-source-code file will define and use flags that are meaningful to that
-file. Any application that links in that file will get the flags, and
-the gflags library will automatically handle that
-flag appropriately.</p>
-
-<p>There's significant gain in flexibility, and ease of code reuse,
-due to this technique. However, there is a danger that two files will
-define the same flag, and then give an error when they're linked
-together.</p>
-
-<p>The rest of this document describes how to use the commandlineflag
-library. It's a C++ library, so examples are in C++. However, there
-is a Python port with the same functionality, and this discussion
-translates directly to Python.</p>
-
-<h2> <A name=cmake>Finding and Linking to gflags </A> using CMake</h2>
-
-<p> Using gflags within a project which uses <A href="http://www.cmake.org">CMake</A> for its build system is easy. Therefore, simply add the following CMake code to your <code>CMakeLists.txt</code> file.
-
-<pre>
- find_package (gflags REQUIRED)
- include_directories (${gflags_INCLUDE_DIR})
-
- add_executable (foo main.cc)
- target_link_libraries (foo gflags)
-</pre>
-
-<h2> <A name=define>DEFINE: Defining Flags In Program</A> </h2>
-
-<p> Defining a flag is easy: just use the appropriate macro for the
-type you want the flag to be, as defined at the bottom of
-<code>gflags/gflags.h</code>. Here's an example file,
-<code>foo.cc</code>:</p>
-
-<pre>
- #include <gflags/gflags.h>
-
- DEFINE_bool(big_menu, true, "Include 'advanced' options in the menu listing");
- DEFINE_string(languages, "english,french,german",
- "comma-separated list of languages to offer in the 'lang' menu");
-</pre>
-
-<p><code>DEFINE_bool</code> defines a boolean flag. Here are the
-types supported:</p>
-<ul>
- <li> <code>DEFINE_bool</code>: boolean
- <li> <code>DEFINE_int32</code>: 32-bit integer
- <li> <code>DEFINE_int64</code>: 64-bit integer
- <li> <code>DEFINE_uint64</code>: unsigned 64-bit integer
- <li> <code>DEFINE_double</code>: double
- <li> <code>DEFINE_string</code>: C++ string
-</ul>
-
-<p>Note that there are no 'complex' types like lists: the "languages"
-flag in our example is a list of strings, but is defined of type
-"string", not "list_of_string" or similar. This is by design. We'd
-rather use only simple types for the flags, and allow for complex,
-arbitrary parsing routines to parse them, than to try to put the logic
-inside the flags library proper.</p>
-
-<p>All DEFINE macros take the same three arguments: the name of the
-flag, its default value, and a 'help' string that describes its use.
-The 'help' string is displayed when the user runs the application with
-the <A HREF="#special"><code>--help</code> flag</A>.</p>
-
-<p>You can define a flag in any source-code file in your executable.
-Only define a flag once! If you want to access a flag in more than
-one source file, DEFINE it in one file, and <A
-HREF="#declare">DECLARE</A> it in the others. Even better, DEFINE it
-in <code>foo.cc</code> and DECLARE it in <code>foo.h</code>; then
-everyone who <code>#includes foo.h</code> can use the flag.</p>
-
-<p>
-Defining flags in libraries rather than in main() is powerful, but
-does have some costs. One is that a library might not have a good
-default value for its flags, for example if the flag holds a
-filename that might not exist in some environments. To mitigate such problems,
-you can use <a href="#validate">flag validators</a> to ensure prompt
-notification (in the form of a crash) of an invalid flag value.
-</p>
-
-<p>Note that while most functions in this library are defined in the
-<code>google</code> namespace, <code>DEFINE_foo</code> (and
-<code>DECLARE_foo</code>, <A HREF="#declare">below</A>), should always
-be in the global namespace.</p>
-
-
-<h2> <A name=using>Accessing the Flag</A> </h2>
-
-<p>All defined flags are available to the program as just a normal
-variable, with the prefix <code>FLAGS_</code> prepended. In the above
-example, the macros define two variables, <code>FLAGS_big_menu</code>
-(a bool), and <code>FLAGS_languages</code> (a C++ string).</p>
-
-<p>You can read and write to the flag just like any other
-variable:</p>
-<pre>
- if (FLAGS_consider_made_up_languages)
- FLAGS_languages += ",klingon"; // implied by --consider_made_up_languages
- if (FLAGS_languages.find("finnish") != string::npos)
- HandleFinnish();
-</pre>
-
-<p>You can also get and set flag values via special functions in
-<code>gflags.h</code>. That's a rarer use case, though.</p>
-
-
-<h2> <A name=declare>DECLARE: Using the Flag in a Different File</A> </h2>
-
-<p>Accessing a flag in the manner of the previous section only works
-if the flag was <code>DEFINE</code>-ed at the top of the file. If it
-wasn't, you'll get an 'unknown variable' error.</p>
-
-<p>The <code>DECLARE_type</code> macro is available when you want to
-use a flag that's defined in another file. For instance, if I were
-writing <code>bar.cc</code> but wanted to access the big_menu, flag, I
-would put this near the top of <code>bar.cc</code>:</p>
-<pre>
- DECLARE_bool(big_menu);
-</pre>
-
-<p>This is functionally equivalent to saying <code>extern
-FLAGS_big_menu</code>.</p>
-
-<p>Note that such an extern declaration introduces a dependency
-between your file and the file that defines the <code>big_menu</code>
-flag: <code>foo.cc</code>, in this case. Such implicit dependencies
-can be difficult to manage in large projects. For that reason we
-recommend the following guideline:</p>
-
-<blockquote>
-If you DEFINE a flag in <code>foo.cc</code>, either don't DECLARE it
-at all, only DECLARE it in tightly related tests, or only DECLARE
-it in <code>foo.h</code>.
-</blockquote>
-
-<p>You should go the do-not-DECLARE route when the flag is only needed
-by <code>foo.cc</code>, and not in any other file. If you want to
-modify the value of the flag in the related test file to see if it is
-functioning as expected, DECLARE it in the <code>foo_test.cc</code>
-file.
-
-<p>If the flag does span multiple files, DECLARE it in the associated
-<code>.h</code> file, and make others <code>#include</code> that
-<code>.h</code> file if they want to access the flag. The
-<code>#include</code> will make explicit the dependency between the
-two files. This causes the flag to be a global variable.</p>
-
-
-<h2> <A name=validate>RegisterFlagValidator: Sanity-checking Flag Values</A> </h2>
-
-<p>After DEFINE-ing a flag, you may optionally register a validator
-function with the flag. If you do this, after the flag is parsed from
-the commandline, and whenever its value is changed via a call to
-<code>SetCommandLineOption()</code>, the validator function is called
-with the new value as an argument. The validator function should
-return 'true' if the flag value is valid, and false otherwise.
-If the function returns false for the new setting of the
-flag, the flag will retain its current value. If it returns false for the
-default value, ParseCommandLineFlags will die.
-
-<p>Here is an example use of this functionality:</p>
-<pre>
-static bool ValidatePort(const char* flagname, int32 value) {
- if (value > 0 && value < 32768) // value is ok
- return true;
- printf("Invalid value for --%s: %d\n", flagname, (int)value);
- return false;
-}
-DEFINE_int32(port, 0, "What port to listen on");
-static const bool port_dummy = RegisterFlagValidator(&FLAGS_port, &ValidatePort);
-</pre>
-
-<p>By doing the registration at global initialization time (right
-after the DEFINE), we ensure that the registration happens before
-the commandline is parsed at the beginning of <code>main()</code>.</p>
-
-<p><code>RegisterFlagValidator()</code> returns true if the
-registration is successful. It return false if the registration fails
-because a) the first argument does not refer to a commandline flag, or
-b) a different validator has already been registered for this flag.</p>
-
-
-<h2> <A name=together>Putting It Together: How to Set Up Flags</A> </h2>
-
-<p>The final piece is the one that tells the executable to process the
-commandline flags, and set the <code>FLAGS_*</code> variables to the
-appropriate, non-default value based on what is seen on the
-commandline. This is equivalent to the <code>getopt()</code> call in
-the getopt library, but has much less overhead to use. In fact, it's
-just a single function call:</p>
-
-<pre>
- gflags::ParseCommandLineFlags(&argc, &argv, true);
-</pre>
-
-<p>Usually, this code is at the beginning of <code>main()</code>.
-<code>argc</code> and <code>argv</code> are exactly as passed in to
-<code>main()</code>. This routine might modify them, which is why
-pointers to them are passed in.</p>
-
-<p>The last argument is called "remove_flags". If true, then
-<code>ParseCommandLineFlags</code> removes the flags and their
-arguments from <code>argv</code>, and modifies <code>argc</code>
-appropriately. In this case, after the function call,
-<code>argv</code> will hold only commandline arguments, and not
-commandline flags.</p>
-
-<p>If, on the other hand, <code>remove_flags</code> is false, then
-<code>ParseCommandLineFlags</code> will leave argc unchanged, but will
-rearrange the arguments in argv so that the flags are all at the
-beginning. For example, if the input is <code>"/bin/foo" "arg1" "-q"
-"arg2"</code> (which is legal but weird), the function will rearrange
-<code>argv</code> so it reads <code>"/bin/foo", "-q", "arg1",
-"arg2"</code>. In this case, <code>ParseCommandLineFlags</code>
-returns the index into argv that holds the first commandline argument:
-that is, the index past the last flag. (In this example, it would
-return 2, since <code>argv[2]</code> points to <code>arg1</code>.)</p>
-
-<p>In either case, the <code>FLAGS_*</code> variables are modified
-based on what was <A HREF="#commandline">passed in on the
-commandline</A>.</p>
-
-
-<h2> <A name=commandline>Setting Flags on the Command Line</A> </h2>
-
-<p>The reason you make something a flag instead of a compile-time
-constant, is so users can specify a non-default value on the
-commandline. Here's how they might do it for an application that
-links in <code>foo.cc</code>:</p>
-<pre>
- app_containing_foo --nobig_menu -languages="chinese,japanese,korean" ...
-</pre>
-
-<p>This sets <code>FLAGS_big_menu = false;</code> and
-<code>FLAGS_languages = "chinese,japanese,korean"</code>, when
-<code>ParseCommandLineFlags</code> is run.</p>
-
-<p>Note the atypical syntax for setting a boolean flag to false:
-putting "no" in front of its name. There's a fair bit of flexibility
-to how flags may be specified. Here's an example of all the ways to
-specify the "languages" flag:</p>
-<ul>
- <li> <code>app_containing_foo --languages="chinese,japanese,korean"</code>
- <li> <code>app_containing_foo -languages="chinese,japanese,korean"</code>
- <li> <code>app_containing_foo --languages "chinese,japanese,korean"</code>
- <li> <code>app_containing_foo -languages "chinese,japanese,korean"</code>
-</ul>
-
-<p>For boolean flags, the possibilities are slightly different:</p>
-<ul>
- <li> <code>app_containing_foo --big_menu</code>
- <li> <code>app_containing_foo --nobig_menu</code>
- <li> <code>app_containing_foo --big_menu=true</code>
- <li> <code>app_containing_foo --big_menu=false</code>
-</ul>
-<p>(as well as the single-dash variant on all of these).</p>
-
-<p>Despite this flexibility, we recommend using only a single form:
-<code>--variable=value</code> for non-boolean flags, and
-<code>--variable/--novariable</code> for boolean flags. This
-consistency will make your code more readable, and is also the format
-required for certain special-use cases like <A
-HREF="#flagfiles">flagfiles</A>.</p>
-
-<p>It is a fatal error to specify a flag on the commandline that has
-not been DEFINED somewhere in the executable. If you need that
-functionality for some reason -- say you want to use the same set of
-flags for several executables, but not all of them DEFINE every flag
-in your list -- you can specify <A
-HREF="#special"><code>--undefok</code></A> to suppress the error.</p>
-
-<p>As in getopt(), <code>--</code> by itself will terminate flags
-processing. So in <code>foo -f1 1 -- -f2 2</code>, <code>f1</code> is
-considered a flag, but <code>-f2</code> is not.</p>
-
-<p>If a flag is specified more than once, only the last specification
-is used; the others are ignored.</p>
-
-<p>Note that flags do not have single-letter synonyms, like they do in
-the getopt library, nor do we allow "combining" flags behind a
-single dash, as in <code>ls -la</code>.</p>
-
-
-
-<h2> <A name=default>Changing the Default Flag Value</A> </h2>
-
-<p>Sometimes a flag is defined in a library, and you want to change
-its default value in one application but not others. It's simple to
-do this: just assign a new value to the flag in <code>main()</code>,
-before calling <code>ParseCommandLineFlags()</code>:</p>
-<pre>
- DECLARE_bool(lib_verbose); // mylib has a lib_verbose flag, default is false
- int main(int argc, char** argv) {
- FLAGS_lib_verbose = true; // in my app, I want a verbose lib by default
- ParseCommandLineFlags(...);
- }
-</pre>
-
-<p>For this application, users can still set the flag value on the
-commandline, but if they do not, the flag's value will default to
-true.</p>
-
-
-<h2> <A name="special">Special Flags</a> </h2>
-
-<p>There are a few flags defined by the commandlineflags module
-itself, and are available to all applications that use
-commandlineflags. These fall into
-three categories. First are the 'reporting' flags that, when found, cause
-the application to print some information about itself and exit.</p>
-
-<table><tr valign=top>
- <td><code>--help</code></td>
- <td>shows all flags from all files, sorted by file and then by name;
- shows the flagname, its default value, and its help string</td>
-</tr><tr valign=top>
- <td><code>--helpfull</code></td>
- <td>same as -help, but unambiguously asks for all flags
- (in case -help changes in the future)</td>
-</tr><tr valign=top>
- <td><code>--helpshort</code></td>
- <td>shows only flags for the file with the same name as the executable
- (usually the one containing <code>main()</code>)</td>
-</tr><tr valign=top>
- <td><code>--helpxml</code></td>
- <td>like --help, but output is in xml for easier parsing</td>
-</tr><tr valign=top>
- <td><code>--helpon=FILE </code></td>
- <td>shows only flags defined in FILE.*</td>
-</tr><tr valign=top>
- <td><code>--helpmatch=S</code></td>
- <td>shows only flags defined in *S*.*</td>
-</tr><tr valign=top>
- <td><code>--helppackage</code></td>
- <td>shows flags defined in files in same directory as <code>main()</code></td>
-</tr><tr valign=top>
- <td><code>--version</code></td>
- <td>prints version info for the executable</td>
-</tr></table>
-
-<p>Second are the flags that affect how other flags are parsed.</p>
-
-<table><tr valign=top>
- <td><code>--undefok=flagname,flagname,...</code></td>
- <td>for those names listed as the argument to <code>--undefok</code>,
- suppress the normal error-exit that occurs when
- <code>--name</code> is seen on the commandline, but
- <code>name</code> has not been DEFINED anywhere in the
- application
-</table>
-
-<p>Third are the 'recursive' flags, that cause other flag values to be
-set: <code>--fromenv</code>, <code>--tryfromenv</code>,
-<code>--flagfile</code>. These are described below in more
-detail.</p>
-
-<h3> <code>--fromenv</code> </h3>
-
-<p><code>--fromenv=foo,bar</code> says to read the values for the
-<code>foo</code> and <code>bar</code> flags from the environment.
-In concert with this flag, you must actually set the values in the
-environment, via a line like one of the two below:</p>
-<pre>
- export FLAGS_foo=xxx; export FLAGS_bar=yyy # sh
- setenv FLAGS_foo xxx; setenv FLAGS_bar yyy # tcsh
-</pre>
-<p>This is equivalent to specifying <code>--foo=xxx</code>,
-<code>--bar=yyy</code> on the commandline.</p>
-
-<p>Note it is a fatal error to say <code>--fromenv=foo</code> if
-<code>foo</code> is not DEFINED somewhere in the application. (Though
-you can suppress this error via <code>--undefok=foo</code>, just like
-for any other flag.)</p>
-
-<p>It is also a fatal error to say <code>--fromenv=foo</code> if
-<code>FLAGS_foo</code> is not actually defined in the environment.</p>
-
-<h3> <code>--tryfromenv</code> </h3>
-
-<p><code>--tryfromenv</code> is exactly like <code>--fromenv</code>,
-except it is <b>not</b> a fatal error to say
-<code>--tryfromenv=foo</code> if <code>FLAGS_foo</code> is not
-actually defined in the environment. Instead, in such cases,
-<code>FLAGS_foo</code> just keeps its default value as specified in
-the application.</p>
-
-<p>Note it is still an error to say <code>--tryfromenv=foo</code> if
-<code>foo</code> is not DEFINED somewhere in the application.</p>
-
-<h3> <code>--flagfile</code> </h3>
-
-<p><code>--flagfile=f</code> tells the commandlineflags module to read
-the file <code>f</code>, and to run all the flag-assignments found in
-that file as if these flags had been specified on the commandline.</p>
-
-<p>In its simplest form, <code>f</code> should just be a list of flag
-assignments, one per line. Unlike on the commandline, the equals sign
-separating a flagname from its argument is <i>required</i> for
-flagfiles. An example flagfile, <code>/tmp/myflags</code>:</p>
-<pre>
---nobig_menus
---languages=english,french
-</pre>
-
-<p>With this flagfile, the following two lines are equivalent:<p>
-<pre>
- ./myapp --foo --nobig_menus --languages=english,french --bar
- ./myapp --foo --flagfile=/tmp/myflags --bar
-</pre>
-
-<p>Note that many errors are silently suppressed in flagfiles. In
-particular, unrecognized flagnames are silently ignored, as are flags
-that are missing a required value (e.g., a flagfile that just says
-<code>--languages</code>).</p>
-
-<p>The general format of a flagfile is a bit more complicated than the
-simple, common case above. It is: a sequence of filenames, one per
-line, followed by a sequence of flags, one per line, repeated as many
-times as desired. Filenames in a flagfile can use wildcards
-(<code>*</code> and <code>?</code>), and the sequence of flags located
-after a sequence of filenames is processed only if the current
-executable's name matches one of the filenames. It is possible to
-start the flagfile with a sequence of flags instead of a sequence of
-filenames; if such a sequence of flags is present, these flags are
-applied to the current executable no matter what it is.</p>
-
-<p>Lines that start with a <code>#</code> are ignored as comments.
-Leading whitespace is also ignored in flagfiles, as are blank
-lines.</p>
-
-<p>It is possible for a flagfile to use the <code>--flagfile</code>
-flag to include another flagfile.</p>
-
-<p>Flags are always processed in the expected order. That is,
-processing begins by examining the flags specified directly on the
-command line. If a flagfile is specified, its contents are processed,
-and then processing continues with remaining flags from the command
-line.</p>
-
-
-<h2> <A name="api">The API</a> </h2>
-
-<p>In addition to accessing <code>FLAGS_foo</code> directly, it is
-possible to access the flags programmatically, through an API. It is
-also possible to access information about a flag, such as its default
-value and help-string. A <code>FlagSaver</code> makes it easy to
-modify flags and then automatically undo the modifications later.
-Finally, there are somewhat unrelated, but useful, routines to easily
-access parts of <code>argv</code> outside main, including the program
-name (<code>argv[0]</code>).</p>
-
-<p>For more information about these routines, and other useful helper
-methods such as <code>gflags::SetUsageMessage()</code> and
-<code>gflags::SetVersionString</code>, see <code>gflags.h</code>.</p>
-
-
-<h2> <A name="misc">Miscellaneous Notes</code> </h2>
-
-<p>If your application has code like this:</p>
-<pre>
- #define STRIP_FLAG_HELP 1 // this must go before the #include!
- #include <gflags/gflags.h>
-</pre>
-<p>we will remove the help messages from the compiled source. This can
-reduce the size of the resulting binary somewhat, and may also be
-useful for security reasons.</p>
-
-
-<hr>
-<address>
-Craig Silverstein, Andreas Schuh<br>
-<script type=text/javascript>
- var lm = new Date(document.lastModified);
- document.write(lm.toDateString());
-</script>
-</address>
-
-</body>
-</html>
http://git-wip-us.apache.org/repos/asf/incubator-quickstep/blob/9661f956/third_party/gflags/src/config.h.in
----------------------------------------------------------------------
diff --git a/third_party/gflags/src/config.h.in b/third_party/gflags/src/config.h.in
deleted file mode 100644
index a8708da..0000000
--- a/third_party/gflags/src/config.h.in
+++ /dev/null
@@ -1,112 +0,0 @@
-/* Generated from config.h.in during build configuration using CMake. */
-
-// Note: This header file is only used internally. It is not part of public interface!
-
-// ---------------------------------------------------------------------------
-// System checks
-
-// Define if you build this library for a MS Windows OS.
-#cmakedefine OS_WINDOWS
-
-// Define if you have the <stdint.h> header file.
-#cmakedefine HAVE_STDINT_H
-
-// Define if you have the <sys/types.h> header file.
-#cmakedefine HAVE_SYS_TYPES_H
-
-// Define if you have the <inttypes.h> header file.
-#cmakedefine HAVE_INTTYPES_H
-
-// Define if you have the <sys/stat.h> header file.
-#cmakedefine HAVE_SYS_STAT_H
-
-// Define if you have the <unistd.h> header file.
-#cmakedefine HAVE_UNISTD_H
-
-// Define if you have the <fnmatch.h> header file.
-#cmakedefine HAVE_FNMATCH_H
-
-// Define if you have the <shlwapi.h> header file (Windows 2000/XP).
-#cmakedefine HAVE_SHLWAPI_H
-
-// Define if you have the strtoll function.
-#cmakedefine HAVE_STRTOLL
-
-// Define if you have the strtoq function.
-#cmakedefine HAVE_STRTOQ
-
-// Define if you have the <pthread.h> header file.
-#cmakedefine HAVE_PTHREAD
-
-// Define if your pthread library defines the type pthread_rwlock_t
-#cmakedefine HAVE_RWLOCK
-
-// gcc requires this to get PRId64, etc.
-#if defined(HAVE_INTTYPES_H) && !defined(__STDC_FORMAT_MACROS)
-# define __STDC_FORMAT_MACROS 1
-#endif
-
-// ---------------------------------------------------------------------------
-// Package information
-
-// Name of package.
-#define PACKAGE @PROJECT_NAME@
-
-// Define to the full name of this package.
-#define PACKAGE_NAME @PACKAGE_NAME@
-
-// Define to the full name and version of this package.
-#define PACKAGE_STRING @PACKAGE_STRING@
-
-// Define to the one symbol short name of this package.
-#define PACKAGE_TARNAME @PACKAGE_TARNAME@
-
-// Define to the version of this package.
-#define PACKAGE_VERSION @PACKAGE_VERSION@
-
-// Version number of package.
-#define VERSION PACKAGE_VERSION
-
-// Define to the address where bug reports for this package should be sent.
-#define PACKAGE_BUGREPORT @PACKAGE_BUGREPORT@
-
-// ---------------------------------------------------------------------------
-// Path separator
-#ifndef PATH_SEPARATOR
-# ifdef OS_WINDOWS
-# define PATH_SEPARATOR '\\'
-# else
-# define PATH_SEPARATOR '/'
-# endif
-#endif
-
-// ---------------------------------------------------------------------------
-// Windows
-
-// Whether gflags library is a DLL.
-#ifndef GFLAGS_IS_A_DLL
-# define GFLAGS_IS_A_DLL 0
-#endif
-
-// Always export symbols when compiling a shared library as this file is only
-// included by internal modules when building the gflags library itself.
-// The gflags_declare.h header file will set it to import these symbols otherwise.
-#ifndef GFLAGS_DLL_DECL
-# if GFLAGS_IS_A_DLL && defined(_MSC_VER)
-# define GFLAGS_DLL_DECL __declspec(dllexport)
-# else
-# define GFLAGS_DLL_DECL
-# endif
-#endif
-// Flags defined by the gflags library itself must be exported
-#ifndef GFLAGS_DLL_DEFINE_FLAG
-# define GFLAGS_DLL_DEFINE_FLAG GFLAGS_DLL_DECL
-#endif
-
-#ifdef OS_WINDOWS
-// The unittests import the symbols of the shared gflags library
-# if GFLAGS_IS_A_DLL && defined(_MSC_VER)
-# define GFLAGS_DLL_DECL_FOR_UNITTESTS __declspec(dllimport)
-# endif
-# include "windows_port.h"
-#endif