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我在 MacOS Mojave 10.14 上。我可以编译 wxWidget 代码并编译了一些演示等。我无法编译的 wxWidget 的唯一功能是 wxRichTextCtrl。每当我在 main.cpp 文件中执行以下操作时，都会出现错误：

wxRichTextCtrl* richTextCtrl = new wxRichTextCtrl(this, -1, wxT(""), wxDefaultPosition,
    wxSize(250, 150), wxTE_MULTILINE);

我收到这个错误

Undefined symbols for architecture x86_64:
"wxRichTextCtrl::wxRichTextCtrl(wxWindow*, int, wxString const&, wxPoint const&, wxSize const&, long, wxValidator const&, wxString const&)", referenced from:
  MyFrame::MyFrame(wxString const&, wxPoint const&, wxSize const&) in main-498ba7.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

我尝试用 wxPanel 替换“this”，但这会导致相同的错误。g++ 的完整错误报告是：

Apple clang version 11.0.0 (clang-1100.0.33.5)
Target: x86_64-apple-darwin18.7.0
Thread model: posix
InstalledDir: /Applications/Xcode-beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin
 "/Applications/Xcode-beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin    /clang" -cc1 -triple x86_64-apple-macosx10.14.0 -Wdeprecated-objc-isa-usage -Werror=deprecated- objc-isa-usage -emit-obj -mrelax-all -disable-free -disable-llvm-verifier -discard-value-names -main-file-name main.cpp -mrelocation-model pic -pic-level 2 -mthread-model posix -mdisable-fp- elim -fno-strict-return -masm-verbose -munwind-tables -target-cpu penryn -dwarf-column-info -debugger-tuning=lldb -ggnu-pubnames -target-linker-version 512.4 -v -resource-dir /Applications  /Xcode-beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/clang/11.0.0 -I/usr/local/lib/wx/include/osx_cocoa-unicode-static-3.1 -I /usr/local/include/wx-3.1 -D _FILE_OFFSET_BITS=64 -D __WXMAC__ -D __WXOSX__ -D __WXOSX_COCOA__ -stdlib=libc++ -internal-isystem /Applications/Xcode-beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1 -Wno-framework-include-private-from-public -Wno-atimport-in-framework-   header -Wno-extra-semi-stmt -Wno-quoted-include-in-framework-header -fdeprecated-macro -fdebug-   compilation-dir /Users/user/Downloads/wxWidgets-3.1.3/build/osx -ferror-limit 19 -fmessage-length 80 -stack-protector 1 -mdarwin-stkchk-strong-link -fblocks -fencode-extended-block-signature -fregister-global-dtors-with-atexit -fobjc-runtime=macosx-10.14.0 -fcxx-exceptions -fexceptions -fmax-type-align=16 -fdiagnostics-show-option -fcolor-diagnostics -o /var/folders/f3/lvdll7257lq_4_fcysmprc700000gn/T/main-b50747.o -x c++ main.cpp
clang -cc1 version 11.0.0 (clang-1100.0.33.5) default target x86_64-apple-darwin18.7.0
ignoring nonexistent directory "/usr/include/c++/v1"
#include "..." search starts here:
#include <...> search starts here:
 /usr/local/lib/wx/include/osx_cocoa-unicode-static-3.1
 /usr/local/include/wx-3.1
 /Applications/Xcode-beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin  /../include/c++/v1
 /usr/local/include
 /Applications/Xcode-beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib  /clang/11.0.0/include
 /Applications/Xcode-beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include
 /usr/include
 /System/Library/Frameworks (framework directory)
 /Library/Frameworks (framework directory)
End of search list.
 "/Applications/Xcode-beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld" -demangle -lto_library /Applications/Xcode-beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/libLTO.dylib -no_deduplicate -dynamic -arch x86_64 -macosx_version_min 10.14.0 -o out -L/usr/local/lib -framework IOKit -framework Carbon -framework         Cocoa -framework AudioToolbox -framework System -framework OpenGL /usr/local/lib/libwx_osx_cocoau_xrc-3.1.a /usr/local/lib/libwx_osx_cocoau_qa-3.1.a /usr/local/lib/libwx_baseu_net-3.1.a /usr/local/lib/libwx_osx_cocoau_html-3.1.a /usr/local/lib/libwx_osx_cocoau_core-3.1.a /usr/local/lib/libwx_baseu_xml-3.1.a /usr/local/lib/libwx_baseu-3.1.a -framework WebKit -lwxregexu-3.1 -lwxscintilla-3.1 -lexpat -lpng -ljpeg -ltiff -lz -framework Security -lpthread -liconv -llzma /var/folders/f3/lvdll7257lq_4_fcysmprc700000gn/T/main-b50747.o -lc++ -lSystem /Applications/Xcode-beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/clang/11.0.0/lib/darwin/libclang_rt.osx.a
Undefined symbols for architecture x86_64:
  "wxRichTextCtrl::wxRichTextCtrl(wxWindow*, int, wxString const&, wxPoint const&, wxSize const&, long, wxValidator const&, wxString const&)", referenced from:
      MyFrame::MyFrame(wxString const&, wxPoint const&, wxSize const&) in main-b50747.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

我使用 g++ 从终端编译并从 wx-config --cxxflags 和 wx-config --libs 获取链接器选项等。我在 xCode 中编程。使用 gcc 而不是 g++ 会导致相同的错误。

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1 回答 1

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默认情况下，wx-config --libs仅返回“标准”库（基本上是实现此功能时的所有现有库），而不是所有可用库，以便以后可以添加更多库，而无需为不需要的应用程序更改任何内容他们。

因此，如果您需要使用未包含在此“标准子集”中的库，则必须明确指定它，如下所示：wx-config --libs std,richtext.

于 2019-11-05T09:57:23.600 回答