I've been trying to setup Xcode with OpenGL, but I can't get it to work.
I have been getting this error every time:
dyld: Library not loaded: /usr/local/opt/glfw/lib/libglfw.3.dylib
Referenced from: /Users/parisjackson-newman/Library/Developer/Xcode/DerivedData/GLFW_OpenGL-fjibdenxheioomgsseembfpbmeih/Build/Products/Debug/GLFW OpenGL
Reason: no suitable image found. Did find:
/usr/local/opt/glfw/lib/libglfw.3.dylib: code signature in (/usr/local/opt/glfw/lib/libglfw.3.dylib) not valid for use in process using Library Validation: mapped file has no cdhash, completely unsigned? Code has to be at least ad-hoc signed.
/usr/local/lib/libglfw.3.dylib: code signature in (/usr/local/lib/libglfw.3.dylib) not valid for use in process using Library Validation: mapped file has no cdhash, completely unsigned? Code has to be at least ad-hoc signed.
/usr/local/Cellar/glfw/3.3.2/lib/libglfw.3.3.dylib: code signature in (/usr/local/Cellar/glfw/3.3.2/lib/libglfw.3.3.dylib) not valid for use in process using Library Validation: mapped file has no cdhash, completely unsigned? Code has to be at least ad-hoc signed.
(lldb)
I used home-brew to install glfw and glew. And the code I am running is the standard window code from the glfw.org website
Go to your Project Navigator and select your project.
Then, go to the Hardened Runtime section under the Signing & Capabilities tab.
Click the checkbox for Disable Library Validation.
Once this is done, you should be able to run your project.
Seems root issue
install glfw from a package manager like brew brew install glfw
xcode search headers path usr/local/include
xcode search libraries path usr/local/lib
Related
I'm trying to configure OpenCV (3.1) with Qt Creator on Windows 32 and 64 bit for a long time to create a GUI application but I just can't seem to solve this configuration part. I've tried and read a lot of tutorials there are on the internet (https://zahidhasan.wordpress.com/2014/08/19/qt-5-3-1-64-bit-mingw-windows/ for example) but with no success.
When I try to run my program, I'm getting these errors:
enter image description here
To use a library, you have to reference its headers (and that is what you have done correctly with your #include directives).
But you also have to point the linker to the location and names of libraries to link. That is currently missing in your configuration, because you get undefined reference errors from linker.
Hard to tell anything more without knowing more details on your setup so far.
Depending on your environment and the build of OpenCV you need, you need to configure your project to use static libraries or DLLs (I assume we speak about Windows here).
As you use imread(), you will surely need the opencv_highgui*.* library, but this will surely not suffice.
See e.g. this OpenCV documentation for a complete list of OpenCV libraries.
How can I add an Emscripten compilation target for my program using biicode. I would like to do a "bii cpp:configure" or a build with params, that would build my C/C++ source code using the downloaded Emscripten SDK (emsdk) or the installed Emscripten (from a package manager).
So you want to #include a emscripten header in your code and get the library? I would suggest to write a block that acts as a proxy and manage to download and install the prebuilt packages, as they seem quite good. This can be done in a several ways:
Write block with a hook, which is a script in python. You have for example the OpenCV one here: http://www.biicode.com/diego/opencv . That will install it to a biicode predefined location, which can be accessed in the CMakeLists.txt via a cmake variable ${BIICODE_ENV_DIR} . You can use that variable to define and link libraries.
You should add the headers you want to include in your block, so you can actually #include things, and have biicode retrieve things. Do not forget to add the hook to the biicode.conf [hooks] section
Write a block with a cmake script. In CMake it is also possible to retrieve and install files. In this case you can just write and INCLUDE(youruser/yourblock/yourcmakescript) in the CMakeLists.txt of the block that wants to "consume" and use emscripten. That file will be handle exactly the same as C/C++ files, they will appear initially as unresolved in "bii deps" and can be resolved with "bii find" or adding the block to the [requirements] section.
I initially recommend this as the library seems a bit complex to build, it does not have standard CMakeLists.txt, but custom configures.
EDIT: Now I see with your comments that this is not what you actually want, but to use a custom compilation (cross compilation to js) toolchain. This can be actually done using custom toolchains: http://docs.biicode.com/c++/building.html#using-a-custom-tool-chain
This could require some mastery of both CMake and the emscripten toolchain. The integration of this toolchains is a little bit tricky now, it is being revamped and will be released in a few weeks.
Note that the rest of the answer is still valid, you can easily write a block with a hook that manages to install the emscripten tool from binaries.
I've been using Boost 1.46.1 in my project until a week ago. After upgrading everything to Boost 1.55.0 I noticed that some functionality is not working as before.
My software loads configuration files which are placed via SymLinks. I'm using Microsofts mklink to do this.
I today found out that while boost::filesystem::is_empty() in version 1.46.1 was returning false for my links, it now returns true in 1.55.0. Unfortunately I'm not able to change the component which uses that code. The result is that my config files aren't loaded anymore.
Is there a way to create links in a way that Boost is able to recognize them?
If I get access to the code: How would I need to change it to work again?
UPDATE:
Some more information in response to the comments:
The SymLink is valid, there is a file linked to it
The file linked to the SymLink is not empty, it is a valid config file which worked before
The user has permissions to the SymLink and to the linked file
I'm able to do an fopen on that file and read its contents
UPDATE2:
I just created a Github project with everything included to recreate the issue. I used VS 2013 Express to compile the program:
GitHub Project - BoostSymLinkError
main.cpp
The problem is that older versions of Boost filesystem (V2) on Windows used VC++'s stat() function to obtain the information on the target file, and that function followed symlinks.
Newer versions of the filesystem library (V3) use the the Win32 GetFileAttributesExW() API, and it doesn't follow symlinks, so the size of the object specified by the path gets returned as 0.
It looks like filesystem V3 was made the default in Boost 1.46 and V2 was removed from the library in 1.48. One possible fix for your problem is to move back to a version of Boost before 1.48 (and possibly build the libraries with the BOOST_FILESYSTEM_VERSION macro set to 2).
I have opened a bug against this and the bug report includes a patch against libs/filesystem/src/operations.cpp that fixes the problem:
https://svn.boost.org/trac/boost/ticket/9824
Keep in mind that the patch I submitted in the bug report hasn't had much testing (for example, it needs to be tested against other versions of Windows, with the MinGW toolchain, with paths that include characters outside the ASCII range, directories as targets, and probably a number of other things I haven't thought of). However, if you want to continue using a recent Boost release, you're welcome to patch your local Boost libs to see if it solves the problem for you.
I've been trying for about 2 weeks now to get a logging library to work with. I've tried Log4cxx, Log4cpp, log4cplus and boost.log. The problem isn't that none of these work for me, it's that I can't figure out how to get them to work at all. I would really like to use log4cxx since I'm working with log4j/logback at work, but I haven't been able to get any of the libraries based on log4j to build. I've been able to build and use the boost library, but boost.log gives me all kinds of linker errors no matter what I try. If anyone could direct me to a step-by-step guide to get one of these libraries working I would greatly appreciate it. Also, I'm using eclipse as my IDE if that matters.
Did you ever get this working? Log4cxx definitely works on Win7. Maybe you could post some of your build errors. Just guessing, perhaps you didn't configure your eclipse project to link with a log4cxx static lib.
Boost.Log works for me quite well (Linux and Windows). It is not a header only library, there is a compiled part that you need to link against. See instructions here.
It also depends on other, non-header, Boost libraries:
The logging library uses several other Boost libraries that need
building too. These are Boost.Filesystem, Boost.System,
Boost.DateTime, Boost.Thread and Boost.Regex. Refer to their
documentation for detailed instructions on the building procedure.
Depending on your platform there may be pre-built versions of the Boost libraries. Otherwise building it yourself is straightforward if you follow the instructions. If you get stuck update your question with where exactly you got stuck and what you're seeing.
I'd recommend Pantheios. It takes some time to build everything when you first download - type make build test and go have lunch - and you have to select the output streams (Pantheios calls them "back ends") at link time, but for coding, it is really simple, e.g.
std::string name;
int age;
pantheios::log_DEBUG("name=", name, " age=", pantheios::integer(age));
It's designed from the ground up for speed - the age won't be converted into a string unless the "DEBUG" level is switched on - and robustness - which is why you can't pass fundamental types directly, and use "inserters" (e.g. pantheios::integer). See this recent blog post by Pantheios' author for more information.
I managed to get log4cxx to work, this was done in Visual Studios 2013 running on Windows 7 OS.
This following is what I did, step by step:
Download the log4cxx ZIP package extract its contents, http://logging.apache.org/log4cxx/download.html
Download apr and apr-util ZIP packages, http://apr.apache.org/download.cgi
Then
manually extract this zip apr-1.2.11-win32-src.zip (the
extracted folder should be named 'apr', if it is not manually rename
it)
manually extract this zip apr-util-1.2.10-win32-src.zip (the
extracted folder should be named 'apr-util', if it is not manually
rename it)
open a command prompt and run the following: cd
apache-log4cxx-0.10.0 configure (this
will execute configure.bat)
We will need to disable to use of the APR ICONV and LDAP support.
In order to do so, we will append the following files manually:
Open apr-util\include\apu.hw. Find the line starting with “#define
APU_HAVE_APR_ICONV”. Change the value to 0 and save.
Open apr-util\include\apr_ldap.hw. Find the line starting with
“#define APR_HAS_LDAP” Change the value to 0 and save.
We need to build the log4cxx.dll, to do so convert *.dsw
to *.cxproj.
Launch Visual Studio 2013 and open log4cxx.dsw.
VS will ask if you like to convert everything. Simply click Yes.
There may be some warnings in the migration report, but nothing that
should prevent the solution from opening.
> The projects xml, apr, and apr-util should build successfully.
If you try compiling the log4cxx project it will most
likely fail with hundreds of errors. This is due to a bug in VC++
which can be worked around.
Move all macros outside (above) the class they are in.
LOG4CXX_LIST_DEF macro is used to define classes. All macros reported in error C2252 will need to move out of any classes. This
may also include moving definitions which are used in the macro.
Next, change all LoggingEvent::KeySet to KeySet (this is no longer nested in a parent class)
> Following this, the log4cxx project should now compile
successfully on your machine.
So my project today has been to create a C++ class that consolidates a lot of our commonly used crypto tasks. Got lots of things working but ran into a bit of a snag here. For reference, I'm using XCode 3.2.5 on OS 10.6.5.
I'm attempting to utilize some of OpenSSL's CMS functions. OpenSSL's MAN Page for one of the functions I'm trying to use mentions it was included in version 0.9.8. That's the version XCode let me import without having to do anything out of the ordinary (Target -> General -> Add Linked Library). Yet with that added XCode tells me it can't find openssl/cms.h.
So thinking maybe there's some disparity between the OS X version 0.9.8 and the one on OpenSSLs page, I downloaded the source for 1.0.0c and built it. After it was built, I added libcrypto.a and libssl.a to my project as linked libraries and added "some/dirs/openssl-1.0.0c/include/**" as a header search path. Now it can find openssl/cms.h but I get a linking error on any CMS function I call.
Has anyone done this successfully? Any help would be appreciate.
Thanks!
So what I ended up doing was to create a new SDK and calling,
./Configure darwin64-x86_64-cc --prefix=/path/to/sdk/usr --openssldir=/System/Library/OpenSSL enable-cms shared
To update the version of OpenSSL included in that SDK. That's seemed to work.