Trouble compiling/linkng wx library

[Charlie]

Hi. I have just installed CodeBlocks and am having trouble building my first project. Whenever I try I get the following errors:

||=== Build: Debug in Project1 (compiler: GNU GCC Compiler) ===|
ld.exe||cannot find -lwxmsw31ud|
ld.exe||cannot find C:\wxWidgets-3.2.1\lib\gcc_dll\mswu: Permission denied|
ld.exe||cannot find C:\wxWidgets-3.2.1\lib\gcc_dll\mswud: Permission denied|
||error: ld returned 1 exit status|
||=== Build failed: 4 error(s), 0 warning(s) (0 minute(s), 6 second(s)) ===|

wxWidgets is installed in the root (C) directory and the file structure is exactly according to the error message. Then there are the "Permission denied" errors, but the access rights are fine. Can anyone help me with this? Thanks in anticipation.

[Miguel Gimenez]

Post a full rebuild log in code tags, see this link

[Charlie]

-------------- Clean: Debug in Project1 (compiler: GNU GCC Compiler)---------------

Cleaned "Project1 - Debug"

-------------- Build: Debug in Project1 (compiler: GNU GCC Compiler)---------------

g++.exe -pipe -mthreads -D__GNUWIN32__ -D__WXMSW__ -DWXUSINGDLL -DwxUSE_UNICODE -Wall -g -D__WXDEBUG__ -IC:\wxWidgets-3.2.1\include -IC:\wxWidgets-3.2.1\lib\gcc_dll\mswud -c C:\Users\paul\Development\CodeBlocks\Project1\Project1App.cpp -o obj\Debug\Project1App.o
g++.exe -pipe -mthreads -D__GNUWIN32__ -D__WXMSW__ -DWXUSINGDLL -DwxUSE_UNICODE -Wall -g -D__WXDEBUG__ -IC:\wxWidgets-3.2.1\include -IC:\wxWidgets-3.2.1\lib\gcc_dll\mswud -c C:\Users\paul\Development\CodeBlocks\Project1\Project1Main.cpp -o obj\Debug\Project1Main.o
windres.exe -IC:\wxWidgets-3.2.1\include -IC:\wxWidgets-3.2.1\lib\gcc_dll\mswud  -J rc -O coff -i C:\Users\paul\DEVELO~1\CODEBL~1\Project1\resource.rc -o obj\Debug\resource.res
g++.exe -LC:\wxWidgets-3.2.1\lib\gcc_dll -o bin\Debug\Project1.exe obj\Debug\Project1App.o obj\Debug\Project1Main.o  obj\Debug\resource.res -mthreads  -lwxmsw31ud C:\wxWidgets-3.2.1\lib\gcc_dll\mswu C:\wxWidgets-3.2.1\lib\gcc_dll\mswud -mwindows
C:/Program Files/CodeBlocks/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/bin/ld.exe: cannot find -lwxmsw31ud
C:/Program Files/CodeBlocks/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/bin/ld.exe: cannot find C:\wxWidgets-3.2.1\lib\gcc_dll\mswu: Permission denied
C:/Program Files/CodeBlocks/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/bin/ld.exe: cannot find C:\wxWidgets-3.2.1\lib\gcc_dll\mswud: Permission denied
collect2.exe: error: ld returned 1 exit status
Process terminated with status 1 (0 minute(s), 19 second(s))
4 error(s), 0 warning(s) (0 minute(s), 19 second(s))

[Miguel Gimenez]

Looks like you missed the code tags part of the link.

These directories should not be in the linker command line, it is trying to open them as libraries:

Code Select Expand


C:\wxWidgets-3.2.1\lib\gcc_dll\mswu
C:\wxWidgets-3.2.1\lib\gcc_dll\mswud

Did you put them in the "Other linker options" box, near -mthreads? (they may be disguised as $(#wx32.lib)\mswu and $(#wx32.lib)\mswud). If so, remove them.

[Charlie]

-------------- Clean: Debug in Project1 (compiler: GNU GCC Compiler)---------------

Cleaned "Project1 - Debug"

-------------- Build: Debug in Project1 (compiler: GNU GCC Compiler)---------------

g++.exe -pipe -mthreads -D__GNUWIN32__ -D__WXMSW__ -DWXUSINGDLL -DwxUSE_UNICODE -Wall -g -D__WXDEBUG__ -IC:\wxWidgets-3.2.1\include -IC:\wxWidgets-3.2.1\lib\gcc_dll\mswud -c C:\Users\paul\Development\CodeBlocks\Project1\Project1App.cpp -o obj\Debug\Project1App.o
g++.exe -pipe -mthreads -D__GNUWIN32__ -D__WXMSW__ -DWXUSINGDLL -DwxUSE_UNICODE -Wall -g -D__WXDEBUG__ -IC:\wxWidgets-3.2.1\include -IC:\wxWidgets-3.2.1\lib\gcc_dll\mswud -c C:\Users\paul\Development\CodeBlocks\Project1\Project1Main.cpp -o obj\Debug\Project1Main.o
windres.exe -IC:\wxWidgets-3.2.1\include -IC:\wxWidgets-3.2.1\lib\gcc_dll\mswud  -J rc -O coff -i C:\Users\paul\DEVELO~1\CODEBL~1\Project1\resource.rc -o obj\Debug\resource.res
g++.exe -LC:\wxWidgets-3.2.1\lib\gcc_dll -o bin\Debug\Project1.exe obj\Debug\Project1App.o obj\Debug\Project1Main.o  obj\Debug\resource.res -mthreads  -lwxmsw31ud -mwindows
C:/Program Files/CodeBlocks/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/bin/ld.exe: cannot find -lwxmsw31ud
collect2.exe: error: ld returned 1 exit status
Process terminated with status 1 (0 minute(s), 23 second(s))
2 error(s), 0 warning(s) (0 minute(s), 23 second(s))

[Charlie]

The entries were in "Link libraries" but not in "Other linker options". I removed them anyway and the result is as above. If I compile for release only I get "mingw32/bin/ld.exe: cannot find -lwxmsw31u". So I don't appear to have either of them. Question: Why is it looking for ....31u instead of ....32u since it is wxWidgets-3.2.1 that I am using?

[gd_on]

inside your C:\wxWidgets-3.2.1\lib\gcc_dll folder you should have a dll with a name containing 32 and not 31. -lwxmsw31ud indicates a wxwidgets 3.1 debugging version which is probably not your case. If in this folder you have, as I suppose, but I'm not on your PC, a libwxmsw32u.a and a corresponding dll like wxmsw32u_gcc_custom.dll (the name may vary) you should use -lwxmsw32u which indicates a non debug version for wxwidgets 3.2 serie.

[Charlie]

Actually, all the lib files in that directory are 32s. There is no libwxmsw32u.a or libwxmsw32ud.a but plenty of others for ribbon, aui, xrc, webview, html, core ...etc. So should I download the non-debug version?

[stahta01]

Actually, all the lib files in that directory are 32s. There is no libwxmsw32u.a or libwxmsw32ud.a but plenty of others for ribbon, aui, xrc, webview, html, core ...etc. So should I download the non-debug version?

The libwxmsw32u.a or libwxmsw32ud.a are monolithic build the others you mention are from multilib build (opposite of  monolithic).

Edit: The primary reason to use monolithic build is building Code::Blocks IDE (CB) or CB Plugins. Otherwise you likely wish to use multilib build of wxWidgets.

Tim S.