CODEWITHSUNDEEP
windowsqtdll
Riaz Shageer
Riaz Shageer

Reputation: 171

QT Not including the correct library when running a build

I'm building a program Using Qt Creator 5.2.1 (32 bit) with Mingw. One of the dependencies of this program is the libcurl library.

QT was building the file properly, however, when running, it would throw an error 139.

After running the dependency walker on the binary, I noticed that the libcurl dll in turn depends upon another dll called "libeay32.dll".

I did the following:

Logically, I presumed afterward, that if I put the path to the libeay32 prior to any other paths within my PATH variable, that It would pull the correct version of the lib (re: answer to question here). However this did not work, throwing the same error 139 (it's apparently not finding the library)

I know I could run and test my program by simply copying the file into my working directory, however, for information purposes, I was wondering;

Is there any way of doing this without having to copy this DLL?

My instinct would have been that fixing the Path to point to this firstly would have helped as this would ensure that the DLL is pulled used before any other occurrences that may be there in other dirs.

Note: In referring to the PATH variable, I mean both the SYSTEM path and checking for the PATH Qt uses (Qt adds a few dirs to the path)

Thanks in advance for any help.

Upvotes: 0

Views: 463

Answers (1)

dgrat
dgrat

Reputation: 2244

Either you link static, or you have to ensure that your library is located in one of the following locations (http://msdn.microsoft.com/en-us/library/windows/desktop/ms682586(v=vs.85).aspx#standard_search_order_for_desktop_applications):

  • The directory from which the application loaded.
  • The current directory.
  • The system directory. Use the GetSystemDirectory function to get the path of this directory.
  • The 16-bit system directory. There is no function that obtains the path of this directory, but it is searched.
  • The Windows directory. Use the GetWindowsDirectory function to get the path of this directory.
  • The directories that are listed in the PATH environment variable. Note that this does not include the per-application path specified by the App Paths registry key. The App Paths key is not used when computing the DLL search path.

Upvotes: 1

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