Talk:Questions and Answers
Was unable to build on Cygwin. Please have patience newb to wxWidgets and Cygwin.
created build-debug directory and navigated to it.
$ ../configure --enable-debug
Causes lots of output can attach a file if desired. Near the end:
Installation directory: /usr/local
Documentation directory: ${prefix}/share/doc/tiff-4.0.3
C compiler: gcc -g -O2 -Wall -W
C++ compiler: g++ -g -O2
Enable runtime linker paths: no
Enable linker symbol versioning: no
Support Microsoft Document Imaging: yes
Use win32 IO: no
Support for internal codecs: CCITT Group 3 & 4 algorithms: yes Macintosh PackBits algorithm: yes LZW algorithm: yes ThunderScan 4-bit RLE algorithm: yes NeXT 2-bit RLE algorithm: yes LogLuv high dynamic range encoding: yes
Support for external codecs: ZLIB support: yes Pixar log-format algorithm: yes JPEG support: yes Old JPEG support: yes JPEG 8/12 bit dual mode: no ISO JBIG support: no LZMA2 support: no
C++ support: yes
OpenGL support: no
Configured wxWidgets 3.0.4 for `x86_64-unknown-cygwin'
Which GUI toolkit should wxWidgets use? msw
Should wxWidgets be compiled into single library? no
Should wxWidgets be linked as a shared library? yes
Should wxWidgets support Unicode? yes (using wchar_t)
What level of wxWidgets compatibility should be enabled?
wxWidgets 2.6 no
wxWidgets 2.8 yes
Which libraries should wxWidgets use?
STL no
jpeg sys
png sys
regex builtin
tiff builtin
zlib sys
expat sys
libmspack no
sdl no
When I run make
make
/home/jjacobs/WxWidgets/wxWidgets-3.0.4/build-debug/bk-deps gcc -c -o wxregex_regcomp.o -DNDEBUG -D__WXMSW__ -D_FILE_OFFSET_BITS=64 -I/home/jjacobs/WxWidgets/wxWidgets-3.0.4/build-debug/lib/wx/include/msw-unicode-3.0 -I../include -Wall -Wundef -g -O0 ../src/regex/regcomp.c In file included from ../include/wx/chkconf.h:1222,
from ../include/wx/platform.h:596,
from ../include/wx/defs.h:27,
from ../src/regex/regcustom.h:39,
from ../src/regex/regguts.h:38,
from ../src/regex/regcomp.c:33:
../include/wx/msw/chkconf.h:414:13: error: #error "wxMediaCtl requires wxActiveXContainer"
414 | # error "wxMediaCtl requires wxActiveXContainer"
| ^JeffreyHJacobs (talk) 13:56, 15 April 2020 (MDT)
../include/wx/msw/chkconf.h:420:9: warning: "wxUSE_WEB" is not defined, evaluates to 0 [-Wundef]
420 | # if wxUSE_WEB
| ^13:56, 15 April 2020 (MDT)JeffreyHJacobs (talk)
../include/wx/msw/chkconf.h:443:9: warning: "wxUSE_WEB" is not defined, evaluates to 0 [-Wundef]
443 | # if wxUSE_WEB
| ^13:56, 15 April 2020 (MDT)JeffreyHJacobs (talk)
make: *** [Makefile:16230: wxregex_regcomp.o] Error 1
uname -a in cygwin shell shows: CYGWIN_NT-10.0 ENGWSL201908-16 3.1.4(0.340/5/3) 2020-02-19 08:49 x86_64 Cygwin
Any and all help greatly appreciated.
Cygwin Eclipse linker error undefined symbol `wxString::ConvertStr
Using Eclipse and the MinGW tool chain I get the error: undefined symbol `wxString::ConvertStr(char const*, unsigned long, wxMBConv const&)'
This is a really simple project which should just show a window.
Source code is:
/*
* Main.h * * Created on: Apr 16, 2020 * Author: jjacobs */
#ifndef MAIN_H_
#define MAIN_H_
#include <wx/wx.h>
class Main : wxFrame
{
public:
Main();
~Main();
};
#endif /* MAIN_H_ */
/*
* Main.cpp * * Created on: Apr 16, 2020 * Author: jjacobs */
#include "Main.h"
Main::Main() : wxFrame(nullptr, wxID_ANY, "First WxWidgets App")
{}
Main::~Main()
{}
/*
* FirstApp.h * * Created on: Apr 16, 2020 * Author: jjacobs */
#ifndef FIRSTAPP_H_
#define FIRSTAPP_H_
#include <wx/wx.h>
class FirstApp : public wxApp
{
public:
FirstApp();
~FirstApp();
bool OnInit();
};
#endif /* FIRSTAPP_H_ */
/*
* FirstApp.cpp * * Created on: Apr 16, 2020 * Author: jjacobs */
#include "FirstApp.h"
wxIMPLEMENT_APP(FirstApp);
FirstApp::FirstApp()
{}
FirstApp::~FirstApp()
{}
bool FirstApp::OnInit()
{
return true;
}
Error in the console window:
/usr/lib/gcc/x86_64-pc-cygwin/9.3.0/../../../../x86_64-pc-cygwin/bin/ld: Src\Main.o:Main.cpp:(.text+0x85): undefined reference to `wxString::ConvertStr(char const*, unsigned long, wxMBConv const&)'
Src\Main.o:Main.cpp:(.text+0x85): relocation truncated to fit: R_X86_64_PC32 against undefined symbol `wxString::ConvertStr(char const*, unsigned long, wxMBConv const&)'
/usr/lib/gcc/x86_64-pc-cygwin/9.3.0/../../../../x86_64-pc-cygwin/bin/ld: Src\Main.o:Main.cpp:(.text+0x131): undefined reference to `wxString::ConvertStr(char const*, unsigned long, wxMBConv const&)'
Src\Main.o:Main.cpp:(.text+0x131): relocation truncated to fit: R_X86_64_PC32 against undefined symbol `wxString::ConvertStr(char const*, unsigned long, wxMBConv const&)'
collect2: error: ld returned 1 exit status
Successfully building the object files.
Command line for compilation:
g++ -D_FILE_OFFSET_BITS=64 -DWXUSINGDLL -D__WXMSW__ "-IC:\\cygwin64\\usr\\x86_64-w64-mingw32\\sys-root\\mingw\\lib\\wx\\include\\x86_64-w64-mingw32-msw-unicode-3.0" "-IC:\\cygwin64\\usr\\x86_64-w64-mingw32\\sys-root\\mingw\\include\\wx-3.0" -O3 -Wall -c -fmessage-length=0 -o "Src\\FirstApp.o" "..\\Src\\FirstApp.cpp"
g++ -D_FILE_OFFSET_BITS=64 -DWXUSINGDLL -D__WXMSW__ "-IC:\\cygwin64\\usr\\x86_64-w64-mingw32\\sys-root\\mingw\\lib\\wx\\include\\x86_64-w64-mingw32-msw-unicode-3.0" "-IC:\\cygwin64\\usr\\x86_64-w64-mingw32\\sys-root\\mingw\\include\\wx-3.0" -O3 -Wall -c -fmessage-length=0 -o "Src\\Main.o" "..\\Src\\Main.cpp"
Command line for link:
g++ -o FirstWxWidgets.exe "Src\\FirstApp.o" "Src\\Main.o" -lwx_mswu_xrc-3.0-x86_64-w64-mingw32 -lwx_mswu_webview-3.0-x86_64-w64-mingw32 -lwx_mswu_html-3.0-x86_64-w64-mingw32 -lwx_mswu_qa-3.0-x86_
64-w64-mingw32 -lwx_mswu_adv-3.0-x86_64-w64-mingw32 -lwx_mswu_core-3.0-x86_64-w64-mingw32 -lwx_baseu_xml-3.0-x86_64-w64-mingw32 -lwx_baseu_net-3.0-x86_64-w64-mingw32 -lwx_baseu-3.0-x86_64-w64-mingw32 "-LC:\\cygwin64\\usr\\x86_64-w64-mingw32\\sys-root\\mingw\\lib" -Wl,--subsystem,windows -mwindows
I seem to be missing a chapter. Any and all help greatly appreciated.
I solved this myself the trick was to use x86_64-w64-mingw32-g++.exe in the "GCC C++ Compiler Command:" and also in the "MinGW C++ Linker Command:" inside of C/C++ Build Settings in Eclipse.