1 /* Licensed to the Apache Software Foundation (ASF) under one or more
2 * contributor license agreements. See the NOTICE file distributed with
3 * this work for additional information regarding copyright ownership.
4 * The ASF licenses this file to You under the Apache License, Version 2.0
5 * (the "License"); you may not use this file except in compliance with
6 * the License. You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
22 * @brief APR Versioning Interface
26 * There are several different mechanisms for accessing the version. There
27 * is a string form, and a set of numbers; in addition, there are constants
28 * which can be compiled into your application, and you can query the library
29 * being used for its actual version.
31 * Note that it is possible for an application to detect that it has been
32 * compiled against a different version of APR by use of the compile-time
33 * constants and the use of the run-time query function.
35 * APR version numbering follows the guidelines specified in:
37 * http://apr.apache.org/versioning.html
41 #define APR_COPYRIGHT "Copyright (c) 2000-2014 The Apache Software " \
42 "Foundation or its licensors, as applicable."
44 /* The numeric compile-time version constants. These constants are the
45 * authoritative version numbers for APR.
49 * Major API changes that could cause compatibility problems for older
50 * programs such as structure size changes. No binary compatibility is
51 * possible across a change in the major version.
53 #define APR_MAJOR_VERSION 1
56 * Minor API changes that do not cause binary compatibility problems.
57 * Reset to 0 when upgrading APR_MAJOR_VERSION
59 #define APR_MINOR_VERSION 5
62 * The Patch Level never includes API changes, simply bug fixes.
63 * Reset to 0 when upgrading APR_MINOR_VERSION
65 #define APR_PATCH_VERSION 1
68 * The symbol APR_IS_DEV_VERSION is only defined for internal,
69 * "development" copies of APR. It is undefined for released versions
72 /* #define APR_IS_DEV_VERSION */
75 * Check at compile time if the APR version is at least a certain
77 * @param major The major version component of the version checked
78 * for (e.g., the "1" of "1.3.0").
79 * @param minor The minor version component of the version checked
80 * for (e.g., the "3" of "1.3.0").
81 * @param patch The patch level component of the version checked
82 * for (e.g., the "0" of "1.3.0").
83 * @remark This macro is available with APR versions starting with
86 #define APR_VERSION_AT_LEAST(major,minor,patch) \
87 (((major) < APR_MAJOR_VERSION) \
88 || ((major) == APR_MAJOR_VERSION && (minor) < APR_MINOR_VERSION) \
89 || ((major) == APR_MAJOR_VERSION && (minor) == APR_MINOR_VERSION && (patch) <= APR_PATCH_VERSION))
91 #if defined(APR_IS_DEV_VERSION) || defined(DOXYGEN)
92 /** Internal: string form of the "is dev" flag */
93 #ifndef APR_IS_DEV_STRING
94 #define APR_IS_DEV_STRING "-dev"
97 #define APR_IS_DEV_STRING ""
100 /* APR_STRINGIFY is defined here, and also in apr_general.h, so wrap it */
101 #ifndef APR_STRINGIFY
102 /** Properly quote a value as a string in the C preprocessor */
103 #define APR_STRINGIFY(n) APR_STRINGIFY_HELPER(n)
104 /** Helper macro for APR_STRINGIFY */
105 #define APR_STRINGIFY_HELPER(n) #n
108 /** The formatted string of APR's version */
109 #define APR_VERSION_STRING \
110 APR_STRINGIFY(APR_MAJOR_VERSION) "." \
111 APR_STRINGIFY(APR_MINOR_VERSION) "." \
112 APR_STRINGIFY(APR_PATCH_VERSION) \
115 /** An alternative formatted string of APR's version */
116 /* macro for Win32 .rc files using numeric csv representation */
117 #define APR_VERSION_STRING_CSV APR_MAJOR_VERSION ##, \
118 ##APR_MINOR_VERSION ##, \
122 #ifndef APR_VERSION_ONLY
124 /* The C language API to access the version at run time,
125 * as opposed to compile time. APR_VERSION_ONLY may be defined
126 * externally when preprocessing apr_version.h to obtain strictly
127 * the C Preprocessor macro declarations.
137 * The numeric version information is broken out into fields within this
141 int major; /**< major number */
142 int minor; /**< minor number */
143 int patch; /**< patch number */
144 int is_dev; /**< is development (1 or 0) */
148 * Return APR's version information information in a numeric form.
150 * @param pvsn Pointer to a version structure for returning the version
153 APR_DECLARE(void) apr_version(apr_version_t *pvsn);
155 /** Return APR's version information as a string. */
156 APR_DECLARE(const char *) apr_version_string(void);
162 #endif /* ndef APR_VERSION_ONLY */
164 #endif /* ndef APR_VERSION_H */