Adding upstream version 1.7.2.upstream/1.7.2upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 112 insertions, 0 deletions

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+Experimental cmake-based build support for APR on Microsoft Windows
+
+Status
+------
+
+This build support is currently intended only for Microsoft Windows.
+Only Windows NT-based systems can be targeted.  (The traditional 
+Windows build support for APR can target Windows 9x as well.)
+
+This build support is experimental.  Specifically,
+
+* It does not support all features of APR.
+* Some components may not be built correctly and/or in a manner
+  compatible with the previous Windows build support.
+* Build interfaces, such as the mechanisms which are used to enable
+  optional functionality or specify prerequisites, may change from
+  release to release as feedback is received from users and bugs and
+  limitations are resolved.
+
+Important: Refer to the "Known Bugs and Limitations" section for further
+           information.
+
+           It is beyond the scope of this document to document or explain
+           how to utilize the various cmake features, such as different
+           build backends or provisions for finding support libraries.
+
+           Please refer to the cmake documentation for additional information
+           that applies to building any project with cmake.
+
+Prerequisites
+-------------
+
+The following tools must be in PATH:
+
+* cmake, version 2.8 or later
+* If using a command-line compiler: compiler and linker and related tools
+  (Refer to the cmake documentation for more information.)
+
+How to build
+------------
+
+1. cd to a clean directory for building (i.e., don't build in your
+   source tree)
+
+2. Some cmake backends may want your compile tools in PATH.  (Hint: "Visual
+   Studio Command Prompt")
+
+3. cmake -G "some backend, like 'NMake Makefiles'"
+     -DCMAKE_INSTALL_PREFIX=d:/path/to/aprinst
+     -DAPR-specific-flags
+     d:/path/to/aprsource
+
+   Alternately, use cmake-gui and update settings in the GUI.
+
+   APR feature flags:
+
+       APR_INSTALL_PRIVATE_H  Install extra .h files which are required when
+                              building httpd and Subversion but which aren't
+                              intended for use by applications.
+                              Default: OFF
+       APR_HAVE_IPV6          Enable IPv6 support
+                              Default: ON
+       APR_BUILD_TESTAPR      Build APR test suite
+                              Default: OFF
+       TEST_STATIC_LIBS       Build the test suite to test the APR static
+                              library instead of the APR dynamic library.
+                              Default: OFF
+                              In order to build the test suite against both
+                              static and dynamic libraries, separate builds
+                              will be required, one with TEST_STATIC_LIBS
+                              set to ON.
+       MIN_WINDOWS_VER        Minimum Windows version supported by this build
+                              (This controls the setting of _WIN32_WINNT.)
+                              "Vista" or "Windows7" or a numeric value like
+                              "0x0601"
+                              Default: "Vista"
+                              For desktop/server equivalence or other values,
+                              refer to
+                              http://msdn.microsoft.com/en-us/library/windows/
+                              desktop/aa383745(v=vs.85).aspx
+       INSTALL_PDB            Install .pdb files if generated.
+                              Default: ON
+
+   CMAKE_C_FLAGS_RELEASE, _DEBUG, _RELWITHDEBINFO, _MINSIZEREL
+
+   CMAKE_BUILD_TYPE
+
+       For NMake Makefiles the choices are at least DEBUG, RELEASE,
+       RELWITHDEBINFO, and MINSIZEREL
+       Other backends make have other selections.
+
+4. build using chosen backend (e.g., "nmake install")
+
+Known Bugs and Limitations
+--------------------------
+
+* If include/apr.h or other generated files have been created in the source
+  directory by another build system, they will be used unexpectedly and
+  cause the build to fail.
+* Options should be provided for remaining features:
+  + APR_POOL_DEBUG
+* APR-CHANGES.txt, APR-LICENSE.txt, and APR-NOTICE.txt are not installed,
+  though perhaps that is a job for a higher-level script.
+
+Generally:
+
+* Many APR features have not been tested with this build.
+* Developers need to examine the existing Windows build in great detail and see
+  what is missing from the cmake-based build, whether a feature or some build
+  nuance.
+* Any feedback you can provide on your experiences with this build will be
+  helpful.