exiv2/msvc

    @@@Marco@@@@@b                   ;mm                       /##Gilles###\

    j@@@#Robin",                     Brad                     /@@@Thomas@@@@Q

     @@@#       \                     ##                     @@@b     |@@@b

     @@@#          .;;;;,     ,;;;, ,;;;;  ,;;;p      .;;;   7@@      ]Alan

     @@@#           j@@@@,   ]@@#/  '@@@#  j@@@#      ]@@^           ;@@@"

     @@@Andreas@C     "@@@p @@@"     @@@b   j@@@p     @@b           @@@#/

     @@@#^7"7%#\       ^@@@@@#~      Benb    1@@@    {@#          s@@@#

     @@@#                Niels       @@@b     @@@Q  ]@#         ;@@@#/

     @@@#              ,@@##@@m      @@@b      @@@p @@C        #@@#C

     @@@#       ,/    s@@#  @@@@     @@@b       Volker       @Tuan@

    ]@@@Abhinav@@\   /@@@\    \@@@Q  @@@Q       %@@@#      /@@@@Mahesh@@#

   /@@Raphael@@@@@\ /@@@@@\     C++  Metadata  Library    /@Sridhar@@@v0.26\



exiv2\msvc\ReadMe.txt

---------------------



Updated: 2017-06-06



Robin Mills

http://clanmills.com

email: robin@clanmills.com



####

T A B L E  o f  C O N T E N T S



1    Build Instructions

1.1  Tools

1.2  Install zlib and expat sources.

1.3  Open exiv2\msvc\exiv2.sln

1.4  Configuring build options (such as video and webready)

1.5  Building with exiv2-webready.sln

1.6  What is build

1.7  Express editions of Visual Studio (or 32 bit only builds, or 64 bit only builds)

1.8  UNICODE Path support

1.9  Build and Test Performance by Platform



2    Design

2.1  Architecture

2.2  Relationship with msvc build environment



3    Batch builds and tests

3.1  buildall.bat

3.2  Running the test suite



4    Building Applications to use Exiv2

4.1  Recommended work-flow to create applications

4.2  Compiler Include Paths and Options

4.3  Library Link Order

4.4  tools/bin/depends32.exe and depends64.exe

4.5  exiv2.exe --verbose --version



5    Acknowledgment of prior work

5.1  Differences between inherited project and the exiv2 projects



## End Table of Contents End ##

####



1    Build Instructions



1.1  Tools

     This has been tested with the "Pro" versions of VS 2005/08/10/12/13 and 2015 Express

     Some older Express editions don't support 64 bit builds

     however it is  possible to build 32 bit libraries with "Express".

     See notes below about Visual Studio Express and building only Win32 or x64 builds



     You need a DOS version of perl to build openssl.  Not the cygwin version.

     I use ActiveState Perl.



     configure.bat is used to configure "non-standard" version of exiv2

     configure.bat requires a python3 interpreter.  I use ActivePython.

     ActivePython 3.4.1.0 (ActiveState Software Inc.) based on

     Python 3.4.1 (default, Aug  7 2014, 13:09:27) [MSC v.1600 64 bit (AMD64)] on win32



     You need Cygwin to run the test suite because it is written in bash.



1.2  Install zlib and expat sources.

     I use the directory c:\gnu\exiv2 for this purpose, however the name isn't important.



     c:\gnu\exiv2>dir

     Directory of c:\gnu\exiv2

     2010-12-05  10:05     <DIR>    trunk     <--- this tree

     2012-05-04  23:35     <DIR>    expat     <--- "vanilla" expat   2.1.0  source tree

     2012-05-04  23:35     <DIR>    zlib      <--- "vanilla" zlib    1.2.7  source tree

     2012-05-04  23:35     <DIR>    curl      <--- "vanilla" curl    7.39.0 source tree

     2012-05-04  23:35     <DIR>    openssl   <--- "vanilla" openssl 1.0.1j source tree

     2012-05-04  23:35     <DIR>    libssh    <--- "vanilla" libssh  0.5.5  source tree

     c:\gnu\exiv2>



     You can obtain the libraries from http://clanmills.com/files/exiv2libs.zip (20mb)

     I copy those to the directory c:\exiv2libs

     The script msvc/copylibs.bat will copy them from c:\exiv2libs to the correct location



     11/05/2014  07:26 AM  <DIR>  curl-7.39.0

     12/07/2014  09:18 AM  <DIR>  expat-2.1.0

     12/17/2014  09:40 AM  <DIR>  libssh-0.5.5

     12/17/2014  09:38 AM  <DIR>  openssl-1.0.1j

     12/07/2014  09:18 AM  <DIR>  zlib-1.2.7



     expat-2.1.0 is available from http://voxel.dl.sourceforge.net/sourceforge/expat/expat-2.1.0.tar.gz

     zlib-1.2.7  is available from http://zlib.net/zlib-1.2.7.tar.gz

     curl        is available from http://curl.haxx.se/download.html

     openssh     is available from https://www.openssl.org/source/

     libssh      is available from https://www.libssh.org/get-it/



1.3  Open exiv2\msvc\exiv2.sln

     Projects are zlib, expat, xmpsdk, exiv2lib, exiv2, addmoddel etc...

     Build/Batch build...  Select All, Build

     - 36 projects      (zlib, expat, xmpsdk, exiv2lib, exiv2, addmoddel etc)

     x 2 Platforms      (x64|Win32)

     x 4 Configurations (Debug|Release|DebugDLL|ReleaseDLL)

     = 38x2x4 = 304 builds.



     When building with webready, you add 5 libraries for a total of 344 builds.



     If you haven't installed the x64 compiler, don't select the 64 bit configurations!

     You may have to hand-edit the vcproj and sln files to hide the 64 bit information.

     See the notes about Visual Studio Express for more information about this.



     Build time is 20 minutes on a 2.2GHz Duo Core and consumes 3.0 gBytes of disk space.

     Build time with webready is of the order of one hour as we add 5 libraries.

     (libcurl, libeay32, ssleay32, libssh, openssl)



1.4  Configuring build options (such as video and webready)



     The batch file configure.bat is used to reconfigure for various options.

     You will need a python3 interpreter.  I personally use ActivePython 3.4.1



	 C:\cygwin64\home\rmills\gnu\exiv2\trunk\msvc>configure -h

	 Usage: configure.py [options]



	 Options:

	  -h, --help            show this help message and exit

	  -A, --with-app        build sample apps (false)

	  -a, --without-app     do not build apps

	  -C, --with-curl       enable curl

	  -c, --without-curl    disable curl

	  -E, --with-expat      enable expat (true)

	  -e, --without-expat   disable expat

	  -O, --with-openssl    enable openssl

	  -o, --without-openssl

							disable openssl

	  -S, --with-ssh        enable ssh

	  -s, --without-ssh     disable ssh

	  -T, --with-test       build test programs (true)

	  -t, --without-test    do not build test progs

	  -W, --enable-webready

							enable webready (false)

	  -w, --disable-webready

							enable webready

	  -V, --enable-video    enable video (false)

	  -v, --disable-video   disable video

	  -X, --enable-xmp      enable xmp (true)

	  -x, --disable-xmp     disable xmp

	  -Z, --with-zlib       enable zlib/png (true)

	  -z, --without-zlib    disable zlib/png

	  -d, --default         default



	 When you run configure.bat it creates a new solution exiv2_configure.sln

	 configure.bat does not modify the solution or project files used by exiv2.sln

	 Instead it creates a parallel set of projects files.  For example exivprint\exifprint_configure.vcproj



1.5  Building with exiv2-webready.sln

	 The solution exiv2-webready.sln was used during development before

	 we created the configure.bat script to generate solution/project files

	 We have decided to ship this build mechanism for v0.25 only.



     Building the complete library with webready support requires building

     5 additional libraries.  This is time consuming.  The build time

     increases from 5 to 20 minutes.



     By default, you will not build with webready.



     To build with webready:

     1 copy include\exiv2\exv_msvc-webready.h include\exiv2\exv_msvc.h

     2 open msvc\exiv2-webready.vcproj



1.6  What is built?

     The DLL builds use the DLL version of the C runtime libraries

     The Debug|Release builds use static C runtime libraries



1.7  Express editions of Visual Studio (or 32 bit only builds, or 64 bit only builds)

     Some Express Editions do not provide a 64 bit compiler.

     You can build 32 bit libraries with Visual Studio Express (with a little effort)



     Before loading the project, use the python script setbuild.py to select Win32:



        c:\gnu\exiv2\msvc>setbuild.py Win32



     setbuild.py is none destructive.  If you have a 64 bit compiler, you can:

     1) Restore the build environment with:   setbuild.py all

     2) Select x64 bit builds only with:      setbuild.py x64



     If you don't have python available (it's a free download from ActiveState.com),

     you can "doctor" to project files manually to remove mentiosn of X64 using an editor:



     Cleanup your tree and edit the files.

     cd exiv2\msvc

     call cleaner.bat

     for /r %f in (*.vcproj) do notepad %f

     for /r %f in (*.sln)    do notepad %f



     I personally don't recommend notepad for any purpose at all.

     I use TextPad http://www.textpad.com/  Notepad++ is also good.



     Visual Studio Express 2010 does not have the "Batch Build" feature.

     Select "exiv2" right-click "Set as Startup Project" and

     Select Platform="Win32" Configuration="Debug|DebugDLL|Release|ReleaseDLL"  Build.

     Build the Configurations you need.  Build time is about 2 minutes/Configuration.



     To remove the "memory" of old configurations:

     setbuild.py reset



1.8  UNICODE PATH Support

     Edit the file include/exiv2/exv_msvc.h to set the appropriate flag.



     #define EXV_UNICODE_PATH 1



1.9  Build and Test Performance by Platform

     The following times were obtained with v0.26 RC1 svn=4673

     Hardware: MacBook-Pro 13" (2013/Retina).

     Ubuntu and Windows on VMs hosts by Parallels



     + ------------- + ------------------------- + ------ + ------ +

     | Platform      | Tools                     |  Build |   Test |

     + ------------- + ------------------------- + ------ + ------ +

     | MacOS-X 10.12 | Clang 8/autotools         | 1' 28" | 0' 32" |

     | Ubuntu 16.10  | GCC/autotools             | 1' 38" | 0' 23" |

     | Windows 10/64 | MSVC 2005                 | 2' 42" | 3' 17" |

     |               | Ubuntu/bash/GCC/autotools | 2' 30" | 2' 48" |

     |               | Cygwin/64/GCC/autotools   | 3' 49" | 2' 30" |

     |               | MinGW/32/GCC/autotools    | 3' 57" | 2' 57" |

     + ------------- + ------------------------- + ------ + ------ +



2    Design



     expat-2.0.1 and zlib-1.2.5 (and earlier) do not provide 64 bit builds for Visual Studio.



     The projects provided for zlib1.2.7 support 64 bit builds, however it didn't

     work cleanly for me.  They use different projects for VC9 and VC10.

     They don't provide support for VS2005 or VS2012beta



     I have created build environments for zlib and expat within exiv2/msvc.

     I don't include the source code for zlib or expat - only the build environment.



     You are expected to install the "vanilla" expat and zlib libraries

     in a directory at the same level as exiv2.

     I personally always build in the directory c:\gnu,

     however the name/location/spaces of the build directory are all irrelevant,

     it's only the relative position of expat-2.1.0 and zlib-1.2.7 that matter.

     The names expat-2.1.0 and zlib-1.2.7 are fixed (and used by the .vcproj files)



     zlib and expat

     exiv2\msvc\zlib\zlib.vcproj                          Visual Studio files

     ..\..\..\zlib                                        Source code



     exiv2\msvc\expat\expat.vcproj                        Visual Studio files

     ..\..\..\expat                                       Source code



2.1  Architecture

     There are directories for every component:

     The libraries: zlib, expat, xmpsdk, exiv2lib

     Applications:  exiv2.exe

     Sample Apps:   exifprint.exe, addmoddel.exe and many more (used by test suite)



     For each component, there are three build directories:

     exiv2lib\build                                         intermediate results

     exiv2lib\Win32\{Debug|Release|DebugDLL|ReleaseDLL}     32 bit builds

     exiv2lib\x64\{Debug|Release|DebugDLL|ReleaseDLL}       64 bit builds



     Final builds and include directories (for export to "foreign" projects)

     bin\{win32|x64}\Win32\{Debug|Release|DebugDLL|ReleaseDLL}



3    Batch builds and tests



3.1  buildall.bat

     This was intended to be a "throw away" kind of script and it's grown to be quite useful.

     You will have to run vcvars32.bat for the compiler you intend to use to ensure devenv is

     on your path.



     It doesn't know anything about building only x64 or only Win32. Change the script if you

     want something special.



3.2  Running the test suite

     You will need to install cygwin to run the test suite.



     This is a two stage process:

     Step1:  Build exiv2 for cygwin and run the test suite

             Typical Unix type build:

             make config

             ./configure --disable-visibility

             export PKG_CONFIG_PATH=$PWD/config

             make clean ; make ; make samples ; make install ; cd test ; make test



     Step2:  set the environment variable EXIV2_BINDIR appropriately and rerun make test

             export EXIV2_BINDIR=<path-to-directory-with-exiv2.exe>



             I find the following little bash loop very useful.  You should test

             against all the directories in the msvc/bin directory:

             for d in $(find /c/gnu.2005/exiv2/msvc/bin \

                        -name exiv2.exe -exec dirname {} ";"); do

                export EXIV2_BINDIR=$d

                echo ---------------------------------

                echo ---- $d ----

                echo ---------------------------------

                make test

            done



     Free gift: (you get what you pay for)

            The script testMSVC.sh to runs this loop for you.

            The script verifyMSVC.sh validates the output of testMSVC.sh

            I've added those for my convenience and I hope you'll find them useful.



     And to pass the time (the test suite takes about an hour to run)

            I recommend running listdlls exiv2.exe occasionally during testing to be

            confident that the test suite is running the MSVC built

            versions of exiv2 and libraries.



            From cygwin:

            while sleep 1 do; listdlls exiv2.exe ; done

            or

            while sleep 10 do ; listdlls exiv2.exe | grep exiv2.exe ; done



     Note: Cygwin currently ships diff-utils 2.9.2 which treats binary files differently

     from 2.8.7 (on Mac) and 3.2 (on Ubuntu 12.04).  For this reason, the executable (and

     support dlls) for GNU diff.exe 2.8.7 is provided in msvc/tools/bin.diff.exe.

     The test suite has been "doctored" on cygwin to modify the path appropriately to

     use this preferred version of diff.exe.



4    Building Applications to use Exiv2



4.1  Recommended work-flow to create applications



     a) add your code code to a sample applications (such as exifprint.exe)

        get the code building and running from there.

        our program will be called exifprint.exe

        you will be very confident that your code works!



     b) copy <exiv2dir>/msvc/exifprint to <exiv2dir>/msvc/yourprojectname

        get yourprojectname.exe to build and run.

        By using <exiv2dir>/msvc/exifprint as a template,:

            i) you can build 32/64 dll/static debug/release "out of the box".

           ii) your include path, dependent libraries and link order are already set.

        Revert your changes to <exiv2dir>/msvc/exifprint



     c) move <exiv2dir>/msvc/yourprojectname in your buildtree.



     d) It's a good idea for your buildtree to reference <exiv2dir>/msvc

        When you reference <exiv2dir>, you can update <exiv2dir> occasionally

        and rebuild with little effort.



     Of course, there are always other ways to achieve your goals in software.

     You may prefer to copy the generated libs and dlls in bin/$platform/$configuration

     to your build tree.  When you do this, you will have to explicitly link

     the libraries you have copied.



4.2  Compiler Include Paths and Options



     The correct include paths and compiler options are revealed in Visual Studio,

     by examining exifprint/Properties/C++/Command Line:



     /Od

     /I "C:\cygwin64\home\rmills\gnu\exiv2\video-write\msvc\../include"

     /I "C:\cygwin64\home\rmills\gnu\exiv2\video-write\msvc\../include/exiv2"

     /I "C:\cygwin64\home\rmills\gnu\exiv2\video-write\msvc\../xmpsdk/include"

     /I "C:\cygwin64\home\rmills\gnu\exiv2\video-write\msvc\../../expat/lib"

     /I "C:\cygwin64\home\rmills\gnu\exiv2\video-write\msvc\../../zlib"

     /I "C:\cygwin64\home\rmills\gnu\exiv2\video-write\msvc\/../../curl/include"

     /I "C:\cygwin64\home\rmills\gnu\exiv2\video-write\msvc\/../../libssh/include"

     /I "C:\cygwin64\home\rmills\gnu\exiv2\video-write\msvc\xssl/Win32/Release/include"

     /D "WIN32" /D "_NDEBUG" /D "_CONSOLE" /D "BUILD_GETOPT" /D "EXV_HAVE_DLL" /D "_MBCS"

     /Gm /EHsc /MD /Fo"build/x64/ReleaseDLL\\" /Fd"build/x64/ReleaseDLL\vc80.pdb"

     /FR"build/x64/ReleaseDLL\\" /W3 /nologo /c /Zi /TP /errorReport:prompt</pre>The correct library link order



4.3  Library Link Order



     The correct order is revealed in Visual Studio,

     by examining exifprint/Properties/Linker/Command-Line:



     /OUT:"C:\cygwin64\home\rmills\gnu\exiv2\video-write\msvc\bin/x64/ReleaseDLL\exifprint.exe"

     /INCREMENTAL:NO /NOLOGO /MANIFEST /MANIFESTFILE:"build/x64/ReleaseDLL\exifprint.exe.intermediate.manifest"

     /SUBSYSTEM:CONSOLE /MACHINE:X64 /ERRORREPORT:PROMPT kernel32.lib user32.lib

     gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib

     "..\bin\x64\releasedll\libexiv2.lib" "..\bin\x64\releasedll\xmpsdk.lib"

     "..\bin\x64\releasedll\libexpat.lib" "..\bin\x64\releasedll\zlib1.lib"



     I don't believe you have to explicitly link msvc{r|p}XXX as they are linked automatically by the version of Visual Studio.

     800=Visual Studio 2005, 900=2008, 100=2010, 110=2012, 120=2013.



4.4  tools/bin/depends32.exe and depends64.exe



     C:\cygwin64\home\rmills\gnu\exiv2\video-write\msvc\bin\x64\releasedll>depends64 exiv2.exe

     libexpat.dll

     PSAPI.DLL

     NSI.dll

     API-MS-Win-Core-DelayLoad-L1-1-0.dll

     API-MS-Win-Core-Interlocked-L1-1-0.dll

     RPCRT4.dll

     API-MS-Win-Core-LocalRegistry-L1-1-0.dll

     msvcrt.dll

     WS2_32.dll

     zlib1.dll

     API-MS-Win-Security-Base-L1-1-0.dll

     API-MS-Win-Core-Profile-L1-1-0.dll

     API-MS-Win-Core-Util-L1-1-0.dll

     API-MS-Win-Core-Fibers-L1-1-0.dll

     API-MS-Win-Core-ErrorHandling-L1-1-0.dll

     API-MS-Win-Core-Debug-L1-1-0.dll

     API-MS-Win-Core-String-L1-1-0.dll

     API-MS-Win-Core-ProcessEnvironment-L1-1-0.dll

     API-MS-Win-Core-Localization-L1-1-0.dll

     API-MS-Win-Core-SysInfo-L1-1-0.dll

     API-MS-Win-Core-Misc-L1-1-0.dll

     API-MS-Win-Core-NamedPipe-L1-1-0.dll

     API-MS-Win-Core-LibraryLoader-L1-1-0.dll

     API-MS-Win-Core-ThreadPool-L1-1-0.dll

     API-MS-Win-Core-IO-L1-1-0.dll

     API-MS-Win-Core-File-L1-1-0.dll

     API-MS-Win-Core-Synch-L1-1-0.dll

     API-MS-Win-Core-Handle-L1-1-0.dll

     API-MS-Win-Core-Memory-L1-1-0.dll

     API-MS-Win-Core-Heap-L1-1-0.dll

     API-MS-Win-Core-ProcessThreads-L1-1-0.dll

     KERNELBASE.dll

     ntdll.dll

     API-MS-Win-Core-RtlSupport-L1-1-0.dll

     KERNEL32.dll

     libexiv2.dll

       Not found: MSVCR80.dll

       Not found: MSVCP80.dll

     exiv2.exe

       Not found: MSVCR80.dll

       Not found: MSVCP80.dll



     C:\cygwin64\home\rmills\gnu\exiv2\video-write\msvc\bin\x64\releasedll>



4.5  exiv2.exe --verbose --version



     You can inspect build information using exiv2 -v -V (verbose version):



     C:\cygwin64\home\rmills\gnu\exiv2\video-write\msvc\bin\x64\releasedll>exiv2 -v -V

     exiv2 0.25 001900 (64 bit build)

     Copyright (C) 2004-2015 Andreas Huggel.



     This program is free software; you can redistribute it and/or

     modify it under the terms of the GNU General Public License

     as published by the Free Software Foundation; either version 2

     of the License, or (at your option) any later version.



     This program is distributed in the hope that it will be useful,

     but WITHOUT ANY WARRANTY; without even the implied warranty of

     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

     GNU General Public License for more details.



     You should have received a copy of the GNU General Public

     License along with this program; if not, write to the Free

     Software Foundation, Inc., 51 Franklin Street, Fifth Floor,

     Boston, MA 02110-1301 USA

     exiv2=0.25.0

     platform=windows

     compiler=MSVC

     bits=64

     dll=1

     debug=0

     version=8.00

     date=Feb  1 2015

     time=21:45:35

     svn=3592

     ssh=0

     curl==0

     executable=C:\cygwin64\home\rmills\gnu\exiv2\video-write\msvc\bin\x64\releasedll\exiv2.exe

     library=C:\Windows\SYSTEM32\ntdll.dll

     library=C:\Windows\system32\kernel32.dll

     library=C:\Windows\system32\KERNELBASE.dll

     library=C:\cygwin64\home\rmills\gnu\exiv2\video-write\msvc\bin\x64\releasedll\libexiv2.dll

     library=C:\cygwin64\home\rmills\gnu\exiv2\video-write\msvc\bin\x64\releasedll\zlib1.dll

     library=C:\Windows\WinSxS\amd64_microsoft.vc80.crt_1fc8b3b9a1e18e3b_8.0.50727.6195_none_88e41e092fab0294\MSVCR80.dl

     library=C:\Windows\system32\msvcrt.dll

     library=C:\Windows\system32\WS2_32.dll

     library=C:\Windows\system32\RPCRT4.dll

     library=C:\Windows\system32\NSI.dll

     library=C:\Windows\WinSxS\amd64_microsoft.vc80.crt_1fc8b3b9a1e18e3b_8.0.50727.6195_none_88e41e092fab0294\MSVCP80.dl

     library=C:\Windows\system32\PSAPI.DLL

     library=C:\cygwin64\home\rmills\gnu\exiv2\video-write\msvc\bin\x64\releasedll\libexpat.dll

     have_strerror_r=0

     have_gmtime_r=0

     have_inttypes=0

     have_libintl=0

     have_lensdata=1

     have_iconv=0

     have_memory=0

     have_memset=0

     have_lstat=0

     have_stdbool=0

     have_stdint=0

     have_stdlib=0

     have_strlib=0

     have_strchr=0

     have_strerror=0

     have_strerror_r=0

     have_strings_h=0

     have_strtol=0

     have_mmap=0

     have_munmap=0

     have_sys_stat=0

     have_timegm=0

     have_unistd_h=0

     have_sys_mman=0

     have_libz=1

     have_xmptoolkit=1

     have_bool=0

     have_strings=0

     have_sys_types=0

     have_unistd=0



     The keys library=path are based on the actual libraries loaded in memory by exiv2.exe

     The output of exiv2.exe -v -V is used by the test suite to verify that we are using

     the correct libraries and not some other bandits which happen to reside on the host machine.



5    Acknowledgement of prior work

     This work is based on work by the following people:

     zlib 64 bit build



        Copyright (C) 2000-2004 Simon-Pierre Cadieux.

        Copyright (C) 2004 Cosmin Truta.

        For conditions of distribution and use, see copyright notice in zlib.h.



        And was obtained from:  http://www.achacha.org/vc2008_zlib/



     expat 64 bit build

     http://www.start64.com/index.php?option=com_content&task=view&id=3461&Itemid=114



     I recognise and respect the work performed by those individuals.



5.1  Differences between inherited projects and the exiv2 projects

     There is no compatiblity.



# That's all Folks!

##