使用gcc编译时Tcl解释器未定义参考错误 [英] Tcl interpreter undefined reference error while compiling with gcc

问题描述

我是Tcl脚本的新手，并且想使用C嵌入Tcl代码.这是我从网站复制的代码，用于测试Tcl-C的工作.

I am new to Tcl scripting and would like to use C to embed Tcl codes. This is the code that I have copied from a website to test the Tcl-C working.

test.c

#include <stdio.h>
#include <tcl.h>
void main ()
{
   Tcl_Interp *myinterp;
   char *action = "set a [expr 5 * 8]; puts $a";
   int status;
   printf ("Your Program will run ... \n");
   myinterp = Tcl_CreateInterp();
   status = Tcl_Eval(myinterp,action);
   printf ("Your Program has completed\n");
   getch();
}

我正在使用MinGW编译该文件.

I am using MinGW to compile this file.

我也将 C:\ Tcl \ include 文件夹的内容复制到了 C:\ MinGW \ include 文件夹中.

I have copied the contents of the C:\Tcl\include folder into the C:\MinGW\include folder as well.

我的gcc编译命令:

gcc -o test.exe test.c

显示的错误消息:

C:\Users\user\AppData\Local\Temp\ccEHJKCb.o:tcl_connection_test.c:(.text+0x23): undefined reference to `_imp__Tcl_CreateInterp'
C:\Users\user\AppData\Local\Temp\ccEHJKCb.o:tcl_connection_test.c:(.text+0x3d): undefined reference to `_imp__Tcl_Eval'
c:/mingw/bin/../lib/gcc/mingw32/4.8.1/../../../../mingw32/bin/ld.exe: C:\Users\user\AppData\Local\Temp\ccEHJKCb.o: bad reloc address 0x20 in section `.eh_frame'
c:/mingw/bin/../lib/gcc/mingw32/4.8.1/../../../../mingw32/bin/ld.exe: final link failed: Invalid operation
collect2.exe: error: ld returned 1 exit status

我似乎在Tcl文件夹中没有任何libtcl文件.

I don't seem to have any libtcl file in the Tcl folder.

Tcl版本是ActiveTcl 8.5.15.0.297577.

The Tcl version is ActiveTcl 8.5.15.0.297577.

任何帮助将不胜感激.

推荐答案

您的示例如何嵌入Tcl已过时，并且链接行中缺少某些内容(例如， -ltcl85 ).如果仅将 -ltcl85 添加到链接行，则它应该开始工作.

Your example how to embed Tcl is outdated, and you are missing certain things in your link line (-ltcl85 for example). If you simply add -ltcl85 to your link line it should start to work.

这不适用于您的情况，因为您安装了x64(64位版本)的ActiveTcl，它提供x64 dll，而不是32位dll.但是标准的mingw gcc仅适用于32位库.

It does not work in your case, because you installed the x64 (64-Bit version) of ActiveTcl, which provides x64 dlls, not 32-Bit ones. But the standard mingw gcc only works with 32-Bit libraries.

因此，要使其正常工作:

So to get this to work:

1. 下载32位ActiveTcl发行版
2. 使用 gcc -o test.exe test.c -Lc:/tcl/lib -Ic:/tcl/include -ltcl86
编译代码
3. 调整路径，以便在PATH中找到c:\ tcl \ bin \ tcl86.dll，并确保Tcl找到了它的libdir( set TCL_LIBRARY = c:\ tcl \ lib \ tcl8.6 )
4. 运行程序

但是对于更复杂的示例，您仍然需要初始化库并执行一些样板代码，因此请在调用 Tcl_CreateInterp()，否则一些命令(例如 clock 可能无法按预期工作).

But for more complex examples, you still need to initialise the library and a do some boilerplate code, so please call Tcl_FindExecutable(argv[0]); before the call to Tcl_CreateInterp() otherwise a few commands (e.g. clock might just not work as expected).

看看 http://www.tcl.tk/cgi-bin/tct/tip/66.html 了解更多详细信息.还可以查看Tcl源代码分发和tclsh shell的源代码.

Have a look at http://www.tcl.tk/cgi-bin/tct/tip/66.html for some more details. Also have a look at the Tcl source distribution and the source for the tclsh shell.

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