How to modify gcc command inside pip
During installation python-ldap using pip I receive error:Modules/common.h:9:20: fatal error: Python.h: No such file or directory #include "Python.h" ^ compilation terminated. error: command 'gcc'...
View ArticleHow does a compiler, say gcc, version built years ago can still compile for a...
Let's say I take a compiler: gcc 4.8. And processor from intel, let's say skylake or some other fancy new family.checking this question: How to see which flags -march=native will activate?; if I do gcc...
View Articlecompilation error on clock_gettime and CLOCK_MONOTONIC
I'm using clock_gettime in a program. I've tried including as well as but neither works. I have also added -lrt to my compiler arguments but still I get the same errors.This is onCentOS Linux release...
View ArticleWhere is the header file on Linux? Why can't I find ? [duplicate]
Possible Duplicate:How to implement getch() function of C in Linux?What is the equivalent Linux version of the conio.h header file from MS-DOS?Is there a way to replace its functionality? e.g....
View ArticleWhy is C++ executable running so much faster when linked against newer...
I have a project (code here) in which I run benchmarks to compare the performance of different methods for computing dot product (Naive method, Eigen library, SIMD implementation, ect). I am testing on...
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Is there any package management system for MinGW+MSYS?
I am trying to compile some open source libraries in MinGW+MSYS. During the configure phase, I kept seeing some 3rd party libraries are missing.For now, my solution is to download the source of the...
View ArticleCan't compile a C program on a Mac after upgrading to Catalina 10.15
There's a previous question Can't compile C program on a Mac after upgrade to Mojave, and the answers to that have covered most of the variations on what goes wrong.Now — as of Monday 2019-10-07 — you...
View ArticleWhat is the meaning of operation in c
I am trying to serialize PHP opcode. I am confused with code. Please check following code. What is the meaning of the code.(ptr) = (void*)((char*)(ptr) -...
View ArticleHow to get gcc3.2 nowadays?
I want to build some old source code which has to be compiled with gcc3.2. I was using CentOS. I tried to find a pre-built binary for gcc3.2, but I didn't. Then I try to build gcc3.2 from source code....
View ArticleRead optimizations on shared memory
Suppose you have a function that make several read access to a shared variable whose access is atomic.As a requirement you must ensure that the value of that read is consistent for all the length of...
View Articlecrt1.o not found when cross compiling on fedora 31
I'm compiling mesa3d for my raspberry pi4. but I meet some error when running meson build.GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072 Compiler executable checksum:...
View ArticleIs there a way to somehow group several symbols from different files together...
A bit of context first.I'm curently working on a modular (embedded) microOS with drivers, ports, partitions and other such objects represented as structures, with distinct "operations" structures...
View ArticleEfficient 128-bit addition using carry flag
I'm using a 128 bit integer counter in the very inner loops of my C++ code. (Irrelevant background: The actual application is evaluating finite difference equations on a regular grid, which involves...
View Articlegcc version-script not hiding all local symbols
I'm trying to use --version-script flag to hide a huge list of unwanted symbols to keep only the symbols that define the interface of my shared library. Here is the call to linker:/usr/bin/cc -fPIC...
View ArticleUnderstanding and using the C language for OS development [closed]
I am writing a hobby operating system, loosely based on this resource : http://www.brokenthorn.com/Resources/OSDevIndex.htmlIt is a pretty well known resource but it has quite a few issues. Thus, I...
View Articlegcc : linker error : undefined reference while using a constant data shared...
My problems seems quite simple, but while googling to find a solution I did not get one :-(I am writing a C program cross compiled to run on an embedded linux. In it, I need to use a constant structure...
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Why is the make command giving errors and how to fix it?
I have to use this program Lemur for some h.w but i am having troubles installing it as I have never used Linux. I downloaded cygwin and ran the ./configure which seemingly runs fine. When I try the...
View ArticleHow do I force gcc to inline a function?
Does __attribute__((always_inline)) force a function to be inlined by gcc?
View ArticleC Pre-Processor include-path order
I typed "cpp -v" on linux and it resulted:#include <...> search starts here: /usr/lib/gcc/x86_64-linux-gnu/7/include /usr/local/include /usr/lib/gcc/x86_64-linux-gnu/7/include-fixed...
View ArticleLinking my own static library in g++ without -I -L options using specs file...
I tried instructions in http://www.mingw.org/wiki/HOWTO_Use_the_GCC_specs_file document.I have my own header and static library in e:\home\include and e:\home\lib, which is "libmath.h" and libmath.a.I...
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