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TODO-CMAKE
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@@@@@@@@@@@@@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@@#
/@@@@@@@@@@@@@@\ /@@@@@\ C++ Metadata Library /@Sridhar@@@v0.26\
Current Status
ToDo: * CMake/MinGW builds executables that do not work properly for v0.26
Known issues:
sample apps crash in XML_ParserCreate()
in c:\MinGW\msys\1.0\bin\msys-expat-1.dll
This is because MinGW links the wrong DLLs.
Team Exiv2 will no longer provide support for MinGW
Here are notes concerning CMake/MinGW
1 Running a MinGW bash shell
I installed MinGW using the installer on the web site.
I installed two copies c:\MinGW and c:\MinGW64
- both copies run a 32 bit bash shell
I installed the TDM-GCC-64 compiler for use from MinGW64
I installed the Qt 5.6.0 Environement for use from MinGW
I start mingw from DOS with this batch-file (mingw32.bat)
@echo off
rem ------------------
: mingw32.bat
: invoke MinGW bash
:
setlocal
set "PKG_CONFIG_PATH=/usr/local/lib/pkgconfig:/usr/lib/pkgconfig"
set "INCLUDE_PATH=/usr/local/inc"
set "LIBRARY_PATH=/usr/local/lib"
set "BINARY_PATH=/usr/local/bin"
set "PATH=c:\Qt\Qt5.6.0\5.6\mingw49_32\bin;c:\Qt\Qt5.6.0\Tools\mingw492_32\bin;\usr\local\bin;\usr\bin:c:\MinGW\bin:c:\cygwin64\bin;c:\Users\rmills\com;."
set "PS1=\! -32- ${PWD}> "
c:\MinGW\msys\1.0\bin\bash.exe %*%
: That's all Folks
rem ------------------
In ~/.bashrc
502 -32- /home/rmills> cat .bashrc
#!/bin/bash
export "PKG_CONFIG_PATH=/usr/local/lib/pkgconfig:/usr/lib/pkgconfig"
export "INCLUDE_PATH=/usr/local/inc"
export "LIBRARY_PATH=/usr/local/lib"
export "BINARY_PATH=/usr/local/bin"
PATH=/c/Qt/Qt5.6.0/5.6/mingw49_32/bin:/c/Qt/Qt5.6.0/Tools/mingw492_32/bin:/usr/local/bin:/usr/bin:/bin:/c/cygwin64/bin:/c/Users/rmills/com:.
PS1='\! -32- ${PWD}> '
# echo hello world from .bashrc
alias dir='ls -alt'
alias del='rm -rf'
alias finder='find . -depth -iname'
alias path='(IFS=:;for i in $PATH; do echo $i; done)'
##
# finder helpers
export L="-exec ls -dalt {} ;"
export X="-exec rm -rf {} ;"
export C="-exec ce {} ;"
export I="-exec lipo -info {} ;"
export O="-exec otool -L {} ;"
export Z="-exec open {} ;"
export P="-exec p4 edit {} ;"
export R="-exec p4 revert {} ;"
export G="-exec grep"
export __=";"
export ___="{} ;"
# That's all Folks!
##
503 -32- /home/rmills>
MinGW64 has very similar code. Putting the TDM compiler on the path is the major difference.
The file ~/.bashrc for MinGW64 is in c:\MinGW64\msys\1.0\home\<username>\.bashrc
2 Building and installing CMake
$ ./bookstrap --prefix=/usr/local
$ make
$ make install
Gotchas:
1) Do not use a Windows binary install version of CMake
This generates commands which assume you are in the DOS shell.
Build and Use CMake in a "Unix" Way from a MinGW/bash shell.
2) Even although gcc is on the path, we must tell cmake not to use /c/MinGW/bin/gcc)
3) It's using the wrong headers. Needs /c/Qt/Qt5.6.0/Tools/mingw492_32/i686-w64-mingw32/include
cmake -G "Unix Makefiles" -DCMAKE_INSTALL_PREFIX=$dist -DEXIV2_ENABLE_NLS=OFF \
-DCMAKE_C_COMPILER=$(which gcc) -DCMAKE_CXX_COMPILER=$(which g++) \
"-DCMAKE_CXX_FLAGS=-I/c/Qt/Qt5.6.0/Tools/mingw492_32/i686-w64-mingw32/include"
..
4) even so, it errors instantly on:
In file included from c:/Qt/Qt5.6.0/Tools/mingw492_32/i686-w64-mingw32/include/stddef.h:7:0,
from c:/Qt/Qt5.6.0/Tools/mingw492_32/lib/gcc/i686-w64-mingw32/4.9.2/include/stddef.h:1,
from C:/MinGW/msys/1.0/home/rmills/gnu/exiv2/trunk/xmpsdk/include/XMP_Const.h:14,
from C:/MinGW/msys/1.0/home/rmills/gnu/exiv2/trunk/xmpsdk/src/XMPCore_Impl.hpp:13,
from C:/MinGW/msys/1.0/home/rmills/gnu/exiv2/trunk/xmpsdk/src/ExpatAdapter.cpp:10:
c:/Qt/Qt5.6.0/Tools/mingw492_32/i686-w64-mingw32/include/crtdefs.h:26:9: error: 'size_t' does not name a type
typedef size_t rsize_t;
5) Building cmake itself required setting CC CXX CXXFLAGS and LDFLAGS
AND editing a system file in Qt with an erroneous #pragma error NTDDI_VERSION and _WIN32_WINNT
In file included from c:/Qt/Qt5.6.0/Tools/mingw492_32/i686-w64-mingw32/include/windows.h:10:0,
from c:/Users/rmills/gnu/cmake/cmake-3.6.2/Utilities/cmlibarchive/libarchive/archive_windows.h:74,
from c:/Users/rmills/gnu/cmake/cmake-3.6.2/Utilities/cmlibarchive/libarchive/archive_platform.h:60,
from c:/Users/rmills/gnu/cmake/cmake-3.6.2/Utilities/cmlibarchive/libarchive/xxhash.c:35:
c:/Qt/Qt5.6.0/Tools/mingw492_32/i686-w64-mingw32/include/sdkddkver.h:186:2: error: #error NTDDI_VERSION and _WIN32_WINNT mismatch!
My work-around was to comment off the #error statement!
3 Building Exiv2 with CMake
$ cd ~/gnu/exiv2/trunk
$ rm -rf build ; mkdir build ; cd build
$ cmake .. -G "Unix Makefiles" -DCMAKE_C_COMPILER=$(which gcc) -DCMAKE_CXX_COMPILER=$(which g++) -DEXIV2_ENABLE_NLS=OFF
.... cmake will rattle and roll ....
CMake generates the wrong include response files.
I put the correct include code in contrib/cmake/mingw/includes.rsp
Propagate the correct includes to the generated files.
$ find . -name "includes_*.rsp" -exec cp ../contrib/cmake/mingw/includes.rsp {} \;
$ make
On my system, these the include response file have the code:
-IC:/MinGW/msys/1.0/home/rmills/gnu/exiv2/trunk/src
-IC:/MinGW/msys/1.0/home/rmills/gnu/exiv2/trunk/include
-IC:/MinGW/msys/1.0/home/rmills/gnu/exiv2/trunk/include/exiv2
-IC:/MinGW/msys/1.0/home/rmills/gnu/exiv2/trunk/build
-IC:/MinGW/msys/1.0/home/rmills/gnu/exiv2/trunk/xmpsdk/include
-IC:/MinGW/msys/1.0/home/rmills/gnu/exiv2/trunk/xmpsdk/src
-IC:/Qt/Qt5.6.0/Tools/mingw492_32/i686-w64-mingw32/include
-IC:/Qt/Qt5.6.0/Tools/mingw492_32/lib/gcc/i686-w64-mingw32/4.9.2/include
-IC:/MinGW/msys/1.0/local/include
Gotcha
------
Even have done all of this, some of the sample applications are not correctly linked.
Samples affected are path-test, geotag, metacopy, exiv2json (possibly others).
The exiv2dll (libexiv2-14.dll) is linked to /bin/msys-expat.dll
and foo.exe is linked to /usr/local/bin/libexpat-1.dll
I have been able to get this fixed. I'll deal with it in v0.27.
two copies of the expat dlls. /usr/local/bin/libexpat-1.dll and /bin/msys-expat.dll
Robin Mills
robin@clanmills.com
2017-06-06