All Questions
19 questions
1
vote
1
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328
views
Compiling GCC failed on Openbsd 7.4 (configure: error: .... libgomp)
I'm yak shaving: to compile gcc (especially with libgccjit for ultimately compiling emacs with native-comp) on openbsd 7.4.
The reason behind is libgccjit isn't available via pkg_add. Thus I'm trying ...
- 552
39
votes
3
answers
15k
views
Do C compilers discard unused functions when statically linking to .a file?
Say I have a C program main.c that statically links to libmine.a. Statically linking to a library causes library functions to be embedded into the main executable at compile time.
If libmine.a were to ...
- 1,013
23
votes
3
answers
6k
views
Are compiled shell scripts better for performance?
After some googling, I found a way to compile BASH scripts to binary executables (using shc).
I know that shell is an interpreted language, but what does this compiler do? Will it improve the ...
- 651
-4
votes
1
answer
979
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How can I name the output of a compiled source file in a certain way?
In terminal, I have compiled a source file named "file.C". I did this by typing g++ file.C -o file.
Now, I'd like to know how can I use Unix commands to name the output as "helloworld....
1
vote
1
answer
4k
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How can I reliably modify build configs and add compiler flags in C/C++ RPM files?
I need to change the build configuration of a large number of rpm files for testing purposes. I'm only speaking of C/C++ code here. I'm not necessarily looking to do automation, but I could use a hand ...
- 414
1
vote
0
answers
1k
views
Cross-Compilation using kernel headers
I coded a kernel module for my RaspberryPi. However, I need to cross-compile the module on my Ubuntu Development machine. I already downloaded the correct kernel-headers on my RaspberryPi and pushed ...
- 11
9
votes
2
answers
8k
views
Want to turn off "note" level messages in GCC
When I compile a C (no pluses) program using GCC, there are several levels of messages possible, like warning, error, and note. The note messages are useless and distracting. How do I make them go ...
- 289
3
votes
2
answers
10k
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How do I compile the Linux kernel with Clang? [closed]
Just out of curiosity, I am interested in compiling the Linux kernel with both the clang and zapcc compilers; one at a time.
I can't find a guide to follow. Only GCC is getting used to compile the ...
- 2,139
2
votes
1
answer
1k
views
Linux From Scratch: Error while compiling binutils 2.32
I am working on Linux from Scratch and currently, I am on this page. While compiling binutils-2.32, I am getting this error:
lfs@pop-os:/mnt/lfs/sources/binutils-2.32/build$ ../configure --prefix=/...
- 123
0
votes
2
answers
425
views
Actual compilation differences between CPUs
For a project I intend to compile various *NIX OSs and their relative packages with different CPUs in order to maximize optimization and performance for specific systems. In order to save time and ...
- 11
0
votes
1
answer
486
views
Where to find the resulting .so file of a compilation?
I just compiled xdebug as instructed on the official site. But where can I find the resulting .so file?
I found one in the folder ./libs/xdebug.so and one in modules/xdebug.so.
Questions
Which one ...
- 2,138
2
votes
2
answers
1k
views
How to compile Solaris executable under Debian?
I have a SSH account at my university's computer in which I can only compile with gcc 4.4.7, which doesn't compatible with my C++ 11 code (I don't have the rights to install/update software). In my ...
- 21
1
vote
1
answer
1k
views
Problems compiling VASP
I'm trying to compile VASP 5.4 on Ubuntu 14.04 and running into issues. I believe I'm most the way there but when I run the make command it seems to bottle out with out a specific error. I am unable ...
- 133
3
votes
0
answers
7k
views
Custom GCC installation - how should I set my environment variables?
After some pains I was finally able to build me a gcc 4.9.3 (I don't have root on the machine I'm working on, and Fedora 22 doesn't package gcc 4.9 anyway). And it even works, i.e. using it to compile ...
- 10.4k
0
votes
1
answer
262
views
-fPIC Flag System-wide?
Position Independent Code means that the generated machine code is not dependent on being located at a specific address in order to work. and the jumps are relative.
So is it OK to declare -fPIC ...
- 3,539