Hi Kyle,
> I'm starting to feel like a helpless nag... no matter how many
> configurations I try for wxWidgets, PLplot or my own application I
> can't actually get them all to compile together. Anyways, I think
> I've found at least one relevant point that should be recorded in this
> thread.
>
> Previously I had compiled wxWidgets using ./configure within MSYS
> according to another guide. This resulted in the libraries being
> placed in a different folder structure than when using MinGW directly
> via cmd.exe as the PLplot wiki recommends. CMake actually offers two
> methods to search for wxWidgets. The variable wxWidgets_FIND_STYLE
> can be set as either unix or win32. Though I didn't get the find
> working with the unix style, I presume that that is why CMake had
> trouble finding my copy of wxWidgets.
The Unix style needs the availibility of the command wx-config, which
is only available for cygwin and msys (that I'm not sure) but also
only within these environments. If you then compile a program on
cmd.exe, wx-config won't work anymore (you need then the win32 style
for mingw/cmd.exe).
>
>
> Back to following the instructions on the PLplot wiki. I compiled
> wxWidgets as release, shared and unicode. Then I moved on to CMake
> for PLplot specifying the mswu wxWidgets configuration and the
> wxWidgets_LIB_DIR. CMake found wxWidgets but failed to actually build
> with the following error:
>
> [ 60%] Building CXX object bindings/wxwidgets/CMakeFiles/
> plplotwxwidgetsd.dir/wx
> PLplotwindow.obj
> Linking CXX shared library ..\..\dll\libplplotwxwidgetsd.dll
> Creating library file: ..\..\dll\libplplotwxwidgetsd.dll.a
> CMakeFiles\plplotwxwidgetsd.dir
> \wxPLplotwindow.obj:wxPLplotwindow.cpp:(.text$_ZN
> 12wxStringBaseC2EPKc[wxStringBase::wxStringBase(char const*)]+0x27):
> undefined r
> eference to `_imp___ZN12wxStringBase8InitWithEPKcjj'
> collect2: ld returned 1 exit status
This is due a bug FindwxWidgets.cmake, either add
add_definitions(-D_UNICODE)
to CMakeLists.txt in the plplot main file. Or look for wxUNICODE in
gcc_dll/mswu/setup.h (or similar) and set it to 1. This flag is always
0 even if you compiled wxWidgets with UNICODE=1, you have to do it on
your own, or set the _UNICODE flag on the command line.
>
>
> On a side note, CMake really likes adding a 'd' onto the end of the
> LIB_TAG setting. I would think that for a release build this would be
> blank?
This also puzzled me, but "d" stands for double not for debug.
>
>
> And then? I recompiled wxWidgets (with both monolithic and not) and
> PLplot as static, unicode and release. Compilation of both went
> flawlessly, but when I compile my project I get:
>
> g++ -mthreads -DHAVE_W32API_H -D__WXMSW__ -D_UNICODE
> -ID:\Projects\wxWidgetsTest\Libraries\wxWidgets-2.8.9\lib\gcc_lib\mswu
> -ID:\Projects\wxWidgetsTest\Libraries\wxWidgets-2.8.9\include
> -Wno-ctor-dtor-privacy -pipe -fmessage-length=0
> -ID:\Projects\wxWidgetsTest\Workspace\MinGW
> -ID:\Projects\wxWidgetsTest\Libraries\plplot-5.9.2\buildmingw\install
> \include
> -O3 -Wall -c -fmessage-length=0 -owxGlade\wxMinimal.o
> ..\wxGlade\wxMinimal.cpp
> g++ -mthreads -DHAVE_W32API_H -D__WXMSW__ -D_UNICODE
> -ID:\Projects\wxWidgetsTest\Libraries\wxWidgets-2.8.9\lib\gcc_lib\mswu
> -ID:\Projects\wxWidgetsTest\Libraries\wxWidgets-2.8.9\include
> -Wno-ctor-dtor-privacy -pipe -fmessage-length=0
> -ID:\Projects\wxWidgetsTest\Workspace\MinGW
> -ID:\Projects\wxWidgetsTest\Libraries\plplot-5.9.2\buildmingw\install
> \include
> -O3 -Wall -c -fmessage-length=0 -osrc\minimal.o ..\src\minimal.cpp
> g++ -oMinGW.exe -mthreads
> -LD:\Projects\wxWidgetsTest\Libraries\plplot-5.9.2\buildmingw\install
> \lib
> -LD:\Projects\wxWidgetsTest\Libraries\wxWidgets-2.8.9\lib\gcc_lib
> wxGlade\wxMinimal.o src\minimal.o -lwxmsw28u_html -lwxmsw28u_adv
> -lwxmsw28u_core -lwxbase28u_xml -lwxbase28u_net -lwxbase28u -lwxtiff
> -lwxjpeg -lwxpng -lwxzlib -lwxregexu -lwxexpat -lkernel32 -luser32
> -lgdi32 -lcomdlg32 -lwxregexu -lwinspool -lwinmm -lshell32 -lcomctl32
> -lole32 -loleaut32 -luuid -lrpcrt4 -ladvapi32 -lwsock32
> -lplplotwxwidgetsd -lplplotd -lplplotcxxd -lcsirocsa
> D:\Projects\wxWidgetsTest\Libraries\plplot-5.9.2\buildmingw\install
> \lib/libplplotd.a(wxwidgets.obj):wxwidgets.cpp:(.text+0xd2a):
> undefined reference to `wxStringBase::InitWith(char const*, unsigned
> int, unsigned int)'
> D:\Projects\wxWidgetsTest\Libraries\plplot-5.9.2\buildmingw\install
> \lib/libplplotd.a(wxwidgets.obj):wxwidgets.cpp:(.text+0xd6e):
> undefined reference to `wxStringBase::InitWith(char const*, unsigned
> int, unsigned int)'
> - followed by a bunch more undefined references
Also because _UNICODE is not defined.
>
>
> If I remove my one PLplot line ( plsdev("wxWidgets"); // just there to
> force PLplot code to be included ) and remove other include etc
> references to PLplot the project builds fine with just wxWidgets.
>
> I know that I need to develop my linker debugging abilities, but in
> the mean time, I would obviously still appreciate pointers or
> solutions.
HTH,
Werner
--
Dr. Werner Smekal
Institut fuer Allgemeine Physik
Technische Universitaet Wien
Wiedner Hauptstr 8-10
A-1040 Wien
Austria
email: sme...@iap.tuwien.ac.at
web: http://www.iap.tuwien.ac.at/~smekal
phone: +43-(0)1-58801-13463 (office), +43-(0)1-58801-13469 (laboratory)
fax: +43-(0)1-58801-13499
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