Dev-C++ FAQ

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Last update: 27/09/2000

Dev C linker errors, undefined reference Home. Programming Forum. Dev-C creates a new makefile every time it compiles. Messing with the old one is futile, it gets overwritten. Linker error undefined referance to. Vtables and static members Linker error undefined reference to. Apr 22, 2014 Enter your email address to subscribe to this blog and receive notifications of new posts by email. Join 74 other followers.

1. When I compile my dos program and execute it,Dev-C++ minimizes and then restore in a second but nothingappears ?
2. When executing my dos program, it closesautomatically. How I can change this ?
3. After linking, i get the error“C:DEV-C++LIBlibmingw32.a(main.o)(.text+0x8e): undefinedreference to `WinMain@16'
4. When I launch Dev-C++ i get the message saying“WININET.DLL not found” ?
5. When I compile a file, I get a message saying'could not find <filename> '
6. The EXE files created are huge. What can i doto reduce the size ?
7.Under Windows NT, every time i launch Dev-C++ i get the message“Failed to set data for”
8.When I try to compile I get: ld: cannot open crt2. o: No suchfile or directory. What can i do ?
9.How can i use the OpenGL library and others ?
10. When i compile a file that contains referencesto Windows filename (like <Mydirmyfile.h>), i get a'unrecognized escape sequence' message ?
11. Is there any GUI library or packages availablefor Dev-C++ ?
12. I am having problems using Borland specificfunctions such as clrscr()
13. The toolbars icons are showing incorrectly.
14. It seems i've found a problem/bug that is notspecified here. What should i do ?
15. When attempting to create a setup program, iget the error 'File BinSetup.exe not found'.
16. How to use assembly (ASM) with Dev-C++ ?

1.When I compile my dos program and execute it, Dev-C++ minimizesand then restore in a second but nothing appears ?
When creating a console application, be sure to uncheck “Donot create a console” in Project Options (when working withsource files only uncheck “Create for win32” inCompiler Options).

2.When executing my dos program, it closes automatically. How I canchange this ?
You can use an input function at the end of you source, like thefollowing example :
#include<stdlib.h>
int main()
{
system(“PAUSE”);
return0;
}

3.After linking, i get the error“C:DEV-C++LIBlibmingw32.a(main.o)(.text+0x8e): undefinedreference to `WinMain@16'
You probably haven’t declared any main() function in yourprogram. Otherwise, try recompiling a second time.

4.When I launch Dev-C++ i get the message saying “WININET.DLLnot found” ?
If you are missing WININET.DLL on your Windows system, you candownload it at: http://www.rocketdownload.com/supfiles.htm

5.When I compile a file, I get a message saying 'could notfind <filename> '
Check in Compiler options if the direcories settings are correct.With a default setup, you should have :
C:DEV-C++Bin
c:DEV-C++Include
c:DEV-C++Include
c:DEV-C++Lib

https://australianew567.weebly.com/blog/download-metatrader-4-for-mac-tradersway. 6.The EXE files created are huge. What can i do to reduce the size?
If you want to reduce your exe file size from 330 Ko to 12 Ko forexample, go to compiler options. Then click on the Linker pageand uncheck 'Generate debug information'. This willremove debugging information (if you want to debug, uncheck it).You can also click on Optimization page and check 'Bestoptimization'.

7.Under Windows NT, every time i launch Dev-C++ i get the message“Failed to set data for”
The is because you are not in Administrator mode, and Dev-C++tries to write to the registry. To get rid of the error message,log on as the Administrator, or uncheck the file associationoptions in Environment options, Misc. Sheet.
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8.when I try to compile I get: ld: cannot open crt2. o: No suchfile or directory. What can i do ?
Go to Compiler options, and check if the Lib directory iscorrectly set to:
C:Dev-C++Lib
(for a default installation).

Linker Error Undefined Reference

If this stilldoesn't work, try copying the file Libcrt2.o to your Dev-C++'sBin directory.

9.How can i use the OpenGL library and others ?
All the libraries that comes with Mingw reside in the Libdirectory. They are all named in the following way: lib*.a
To link a library with your project, just add in Project options,Further option files :
-lopengl32
This is for including the libopengl32.a library. To add any otherlibrary, just follow the same syntax:
Type -l (L in lowercase) plus the base name of the library(filename without 'lib' and the '.a'extension).

10.When i compile a file that contains references to Windowsfilename (like <Mydirmyfile.h>), i get a 'unrecognizedescape sequence' message ?

The Mingw compilerunderstands paths in the Unix style (/mydir/myfile.h). Tryreplacing the in the filename by /

11.Is there any GUI library or packages available for Dev-C++ ?

You can downloadextra packages for Dev-C++ at http://www.bloodshed.net/dev/

12.I am having problems using Borland specific functions such asclrscr()

C++ Linker Error Undefined Symbol

Include conio.h toyour source, and add

Dev C++ Linker Error