How do I stop sem_open() failing with ENOSYS?

I have two Slackware Linux systems on which the POSIX semaphore sem_open() call fails with errno set to 38. Sample code to reproduce below (the code works fine on CentOS / RedHat). Are there any...

C++ QTCreator 5.0 SQLite3_Open Undefined Refernce

I am new to C++ ad trying to link to a sqlite database. I am following a tutorial and I am getting a sqlite3_open error Undefined Reference. What am I doing wrong? #include...

GLFW Won't Link Correctly

So recently I've started a project involving GLFW (64-bit, with GLEW). However, I can't seem to get it to link correctly. Here's how I'm set up: OS: Windows 8 64-bit Compiler: mingw64 IDE:...

g++ ld: symbol(s) not found for architecture x86_64

I'm trying to compile the Sam Hare's Struck code. I'm using mac OSX10.9, opencv 2.4.6 and Eigen 2.0.17. Eigen and opencv headers are stored in /opt/local/include while opencv dylib in...

command 'gcc' failed with exit status 1

I tried all answers but I can't solve the problem of installing Biopython package I installed Mingw , but when I try to install the package : python setup.py install I get the following error: ...

Duplicate symbols for architecture x86_64 under Xcode

I now have the same question with above title but have not found the right answer yet. I got the error: ...

Extract content of <script> with BeautifulSoup

1/ I am trying to extract a part of the script using beautiful soup but it prints Nothing. What's wrong ? URL =...

undefined reference to 'clrscr' and ld returned 1 exit status

Im trying to compile the c code free available. The code is relative to implement a Linked List. But when I try to build and run the code I get this error twice: undefined reference to 'clrscr'...

Cannot run C++ code on the newly installed Visual Studio Code

I have done the following to try to set up development environment for C++ on macOS but in vain. I downloaded Visual Studio Code from Microsoft website and correctly installed. I installed...

create symbolic link in bitbake recipe

I have a .bbappend recipe that I need to create a symbolic link in my system. This is how it looks like...

Compiling and linking position independent code (PIC) for ARM M4

I'm working on making a bootloader and giving it the ability to update itself. This process involves copying the binary to a new location, jumping to it, and using it to flash the new bootloader...

C++ Armadillo library gives undefined reference to `arma::arma_rng_cxx11_instance'

I used CMake to build my project and Catch2 to do the testing. The following is my project structure ├── build ├── CMakeLists.txt ├── compile_commands.json ├──...

Locating iostream in Clang++: fatal error: 'iostream' file not found

I wrote the following simple C++ program: #include <iostream> using namespace std; int main() { cout << "Hello, World" << endl; return 0; } When I compile this with g++, it works...

Access build-id at runtime

I am trying to figure out how to access the build-id generated by the linker at runtime. From this page, https://linux.die.net/man/1/ld When I build a test program like: % gcc test.c -o test...

Reorder variables in stargazer

I got some problem when I was trying to reorder variables in stargazer. First, I defined a character vector indicating the order I want. > order [1] "poly(log(fall_t), 2)1" ...

Is it possible in practice to compile millions of small functions into a static binary?

I've created a static library with about 2 million small functions, but I'm having trouble linking it to my main function, using GCC (tested 4.8.5 or 7.3.0) under Linux x86_64. The linker...

how can i use application/ld+json in nextjs

I have a Layout in next js and I use Head component . I want to use schema json but I have an error. This is my code: <Head> <script type="application/ld+json"> {{ ...

Creating Basic block vectors for SimPoints

For the purpose of my PhD thesis, I'm trying to trace the GAP Benchmark Suite using the SimPoints methodology and you may know, the first step to do so is to get Basic Block vectors for the...

Using an HTML form with Python Flask search a MongoDB collection

I 'ld like for a user to drop a random search in a search form for a book title and find get results if the book is in the db. Below is part of the code block. I 'm having some issues searching...

ld: unsupported tapi file type '!tapi-tbd' in YAML file

I am facing an error which running "npm install" (see picture attached) node version: 10.7.0, npm version: 6.1.0 MacOs version: 10.15.6 It's a react native project (i'll be working on iOS part),...

How can I build the Google Analytics SDK on Apple Silicon ('M1') so it runs in the Xcode Simulator?

I've used the Google Analytics SDK (pod 'GoogleAnalytics') in my project for 8 years. It has always worked, until I recently moved to a new Mac with an M1 chip. On the new MacBook Pro, I can build...

Docker Alpine executable binary not found even if in PATH

I have an alpine running container which contains some binaries in usr/local/bin When I ls the content of usr/local/bin I got this output : /usr/local/bin # ls dwg2SVG dwg2dxf dwgadd ...

Trying to install filosottile/musl-cross/musl-cross on m1 macbook

I`m trying to install filosottile/musl-cross/musl-cross via brew and facing an error at this stage: ==> /opt/homebrew/opt/make/bin/gmake install TARGET=x86_64-linux-musl Last 15 lines from...

Rails & MySQL on Apple Silicon

has anyone been able to get Rails running with the MySQL via the mysql2 gem on Apple Silicon? I'm working with Ruby 2.5.3 and Rails 5.2.3 but would love to hear of any successes with any...

MySQLClient won't install via pip on Macbook Pro M1 with latest version of Big Sur

I just purchased a new Macbook Pro with the M1 chip after ensuring that homebrew would work natively on it. I'm able to pip install any other library except mysqlclient, and I have no issue...

linker command failing for particular golang test involving "net/http" and "time" packages

I'm new to web development and golang. I'm trying to learn go from here. Without any issues I was able to learn till concurrency part, however, I'm facing issues while trying to learn select...

7 duplicate symbols for architecture x86_64 in react native

when I am trying to run my react native app on the ios simulator I am getting this error. Error: duplicate symbol '_EXCanAskAgain' in: ...

Why is Xcode on my M1 Mac trying to build for `iOS Simulator-x86_64`? Why is it not building for an `arm` based simulator?

I have an M1 MacBook Air. When building for a simulator in Xcode, I am seeing the following warnings and errors: ld: warning: ignoring file...

Installing compiler on Mac M1 Monterey for Rcpp and other tools

I'm trying to use packages that require Rcpp in R on my M1 Mac, which I was never able to get up and running after purchasing this computer. I updated it to Monterey in the hope that this would...

Why would the C standard (whatever is the latest) forbid this program due to strict aliasing?

It is clear to me that the C standard forbids (does not define the behavior of) this program, but it is not clear why it has to be this way. Why are the aliasing rules such that one cannot write...

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