Making use of Qt dependencies to avoid duplicaton of binaries
Qt makes use of a lot of 3rd party libraries for image encoding, compression, encryption, audio and video codec support and whatnot.
Historically, I've always had to include those as additional dependencies when I want to utilize them. And I've always wondered if there is a way to simply reuse the binaries Qt already incorporates?
qt dependencies shared-libraries static-libraries reusability
asked Nov 11 at 17:43
dtech
33.8k1273133
add a comment |
Qt makes use of a lot of 3rd party libraries for image encoding, compression, encryption, audio and video codec support and whatnot.
Historically, I've always had to include those as additional dependencies when I want to utilize them. And I've always wondered if there is a way to simply reuse the binaries Qt already incorporates?
qt dependencies shared-libraries static-libraries reusability
asked Nov 11 at 17:43
dtech
33.8k1273133
add a comment |
Qt makes use of a lot of 3rd party libraries for image encoding, compression, encryption, audio and video codec support and whatnot.
Historically, I've always had to include those as additional dependencies when I want to utilize them. And I've always wondered if there is a way to simply reuse the binaries Qt already incorporates?
qt dependencies shared-libraries static-libraries reusability
asked Nov 11 at 17:43
dtech
33.8k1273133
Qt makes use of a lot of 3rd party libraries for image encoding, compression, encryption, audio and video codec support and whatnot.
Historically, I've always had to include those as additional dependencies when I want to utilize them. And I've always wondered if there is a way to simply reuse the binaries Qt already incorporates?
qt dependencies shared-libraries static-libraries reusability
qt dependencies shared-libraries static-libraries reusability
asked Nov 11 at 17:43
dtech
33.8k1273133
asked Nov 11 at 17:43
dtech
33.8k1273133
asked Nov 11 at 17:43
dtech
33.8k1273133
asked Nov 11 at 17:43
dtech
33.8k1273133
asked Nov 11 at 17:43
dtech
33.8k1273133
33.8k1273133
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
It really depends on the libraries, but generally speaking, it sadly is not possible.
Qt builds and links most 3rd party libraries statically and without exporting any symbols (See libpng as an example). Some are even only linked into the plugins and not the Qt libraries (like sqlite, which is only a pri-file that is imported by the plugin). The only way to find out for the concrete case is to check the src/3rdparty subfolders in the different Qt repositories.
There is also one other point to consider: Qt often tries to fulfill dependencies by using what the operating system provides. I.e. if Qt finds libpng on the host system, it typlically links against that library, so the code isn't even part of the Qt binaries anymore, making compiletime linking dependend on the Qt configuration, even if symbols are exported for a concrete library.
The only real exception to all this is if you link Qt statically. In that case, the linker will only pull in all those 3rdparty dependencies once you link the final application, making it possible for you to link against the libraries Qt uses.
answered Nov 11 at 22:04
Felix
4,47211636
add a comment |
Your Answer
StackExchange.ifUsing("editor", function ()
StackExchange.using("externalEditor", function ()
StackExchange.using("snippets", function ()
StackExchange.snippets.init();
);
);
, "code-snippets");
StackExchange.ready(function()
var channelOptions =
tags: "".split(" "),
id: "1"
;
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function()
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled)
StackExchange.using("snippets", function()
createEditor();
);
else
createEditor();
);
function createEditor()
StackExchange.prepareEditor(
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader:
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
,
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
);
);
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53251468%2fmaking-use-of-qt-dependencies-to-avoid-duplicaton-of-binaries%23new-answer', 'question_page');
);
Post as a guest
Required, but never shown
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
It really depends on the libraries, but generally speaking, it sadly is not possible.
Qt builds and links most 3rd party libraries statically and without exporting any symbols (See libpng as an example). Some are even only linked into the plugins and not the Qt libraries (like sqlite, which is only a pri-file that is imported by the plugin). The only way to find out for the concrete case is to check the src/3rdparty subfolders in the different Qt repositories.
There is also one other point to consider: Qt often tries to fulfill dependencies by using what the operating system provides. I.e. if Qt finds libpng on the host system, it typlically links against that library, so the code isn't even part of the Qt binaries anymore, making compiletime linking dependend on the Qt configuration, even if symbols are exported for a concrete library.
The only real exception to all this is if you link Qt statically. In that case, the linker will only pull in all those 3rdparty dependencies once you link the final application, making it possible for you to link against the libraries Qt uses.
answered Nov 11 at 22:04
Felix
4,47211636
add a comment |
It really depends on the libraries, but generally speaking, it sadly is not possible.
Qt builds and links most 3rd party libraries statically and without exporting any symbols (See libpng as an example). Some are even only linked into the plugins and not the Qt libraries (like sqlite, which is only a pri-file that is imported by the plugin). The only way to find out for the concrete case is to check the src/3rdparty subfolders in the different Qt repositories.
There is also one other point to consider: Qt often tries to fulfill dependencies by using what the operating system provides. I.e. if Qt finds libpng on the host system, it typlically links against that library, so the code isn't even part of the Qt binaries anymore, making compiletime linking dependend on the Qt configuration, even if symbols are exported for a concrete library.
The only real exception to all this is if you link Qt statically. In that case, the linker will only pull in all those 3rdparty dependencies once you link the final application, making it possible for you to link against the libraries Qt uses.
answered Nov 11 at 22:04
Felix
4,47211636
add a comment |
It really depends on the libraries, but generally speaking, it sadly is not possible.
Qt builds and links most 3rd party libraries statically and without exporting any symbols (See libpng as an example). Some are even only linked into the plugins and not the Qt libraries (like sqlite, which is only a pri-file that is imported by the plugin). The only way to find out for the concrete case is to check the src/3rdparty subfolders in the different Qt repositories.
There is also one other point to consider: Qt often tries to fulfill dependencies by using what the operating system provides. I.e. if Qt finds libpng on the host system, it typlically links against that library, so the code isn't even part of the Qt binaries anymore, making compiletime linking dependend on the Qt configuration, even if symbols are exported for a concrete library.
The only real exception to all this is if you link Qt statically. In that case, the linker will only pull in all those 3rdparty dependencies once you link the final application, making it possible for you to link against the libraries Qt uses.
answered Nov 11 at 22:04
Felix
4,47211636
It really depends on the libraries, but generally speaking, it sadly is not possible.
Qt builds and links most 3rd party libraries statically and without exporting any symbols (See libpng as an example). Some are even only linked into the plugins and not the Qt libraries (like sqlite, which is only a pri-file that is imported by the plugin). The only way to find out for the concrete case is to check the src/3rdparty subfolders in the different Qt repositories.
There is also one other point to consider: Qt often tries to fulfill dependencies by using what the operating system provides. I.e. if Qt finds libpng on the host system, it typlically links against that library, so the code isn't even part of the Qt binaries anymore, making compiletime linking dependend on the Qt configuration, even if symbols are exported for a concrete library.
The only real exception to all this is if you link Qt statically. In that case, the linker will only pull in all those 3rdparty dependencies once you link the final application, making it possible for you to link against the libraries Qt uses.
answered Nov 11 at 22:04
Felix
4,47211636
edited Nov 12 at 15:17
answered Nov 11 at 22:04
Felix
4,47211636
answered Nov 11 at 22:04
Felix
4,47211636
answered Nov 11 at 22:04
Felix
4,47211636
4,47211636
add a comment |
add a comment |
Thanks for contributing an answer to Stack Overflow!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Some of your past answers have not been well-received, and you're in danger of being blocked from answering.
Please pay close attention to the following guidance:
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53251468%2fmaking-use-of-qt-dependencies-to-avoid-duplicaton-of-binaries%23new-answer', 'question_page');
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
