02-24-2008
10 More Discussions You Might Find Interesting
1. Programming
I'm trying to do something fairly simple but keep getting frustrating messages..
Here it is:
I have 3 files:
init.h <header>
init.c <#include <curses.h> and "init.h">
main.c <#include "init.h">
now, how can I compile my main.c using gcc?
( I have a hard time making the init.o)
... (1 Reply)
Discussion started by: My_Name
1 Replies
2. Programming
hello,
i have a structure defined as follows
struct Image
{
int lenght;
int height;
};
and i have another structure where i declare a array of the above structure
struct ShapeImage
{
Image image;
};
when i compile this code with gcc it shows me the following error :
... (3 Replies)
Discussion started by: svh
3 Replies
3. UNIX for Dummies Questions & Answers
Hello, I have never had a successful compile on the 2.6 kernel. On every arch in which I try to compile gcc I get either "i686-pc-cygwin-ar command not found or "i686-suse-linux-ar command not found. This always happens during the make process after configure checks for ar and finds it's just ar.... (2 Replies)
Discussion started by: kwa71
2 Replies
4. Programming
Im trying to write a program atm which uses mutexes to control thread access to a certain code section ( the critical section).
However, whenever I compile the code using gcc I get the following message from gcc
Unresolved text symbol "pthread_mutex_lock"
Unresolved text symbol... (1 Reply)
Discussion started by: JamesGoh
1 Replies
5. Solaris
I'm getting this error when 'Linking shared library bin/libtalloc.so.2'... anyone know what's up here?
Using CFLAGS = -O -I. -I/source/samba-3.5.1/source3 -I/source/samba-3.5.1/source3/../lib/popt -I/source/samba-3.5.1/source3/iniparser/src -Iinclude -I./include -I. -I. -I./../lib/replace... (6 Replies)
Discussion started by: son_t
6 Replies
6. Programming
I am using gcc to compile c objects on solaris 5.10 and hit the following error messages:
/usr/include/sys/vfs.h:323: error: syntax error before "statvfs64_t"
/usr/include/sys/vfs.h:334: error: syntax error before "statvfs64_t"
gmake: *** Error 1
The c program files were copied over from... (3 Replies)
Discussion started by: med7006
3 Replies
7. Programming
Hi guys.
I want to compile three files:
gcc -static main.c fib.c fib.h
it is pure C i mean i use standard C library.
but it gives me this error:
/usr/bin/ld: cannot find -lc
collect2: ld returned 1 exit status
what should i do? (4 Replies)
Discussion started by: majid.merkava
4 Replies
8. Programming
Hi Everyone,
I can ask what is the option to compile a 64 bits program using gcc. I have looked everywhere but can't find it. Before I used to use cc and the -q64 flag was the option to generate the 64 bits binary. Can anyone tell me what is the flags when using gcc. Thanks...... (3 Replies)
Discussion started by: arizah
3 Replies
9. UNIX for Advanced & Expert Users
Heyas
I'm currently trying to make a fresh build from scratch/source of FFMPEG.
This said, it brings quite a tail with it, so the use of a script was very obvious.
Anyway, i'm currently stuck at named package.
Lets ignore the tarball/download line, as the error is after.
Commands... (0 Replies)
Discussion started by: sea
0 Replies
10. UNIX for Beginners Questions & Answers
First of all -- thanks for being patient with me. I hope I'm submitting this correctly. Also I haven't done UNIX Admin since the early 1990's. I'm actually a DBA. But, since I'm the one in the office with the UNIX experience, I'm the SA.
I haven't been able to compile GCC 6.3.0 which I need... (9 Replies)
Discussion started by: PJ_Namias
9 Replies
LEARN ABOUT NETBSD
__builtin_constant_p
__BUILTIN_CONSTANT_P(3) BSD Library Functions Manual __BUILTIN_CONSTANT_P(3)
NAME
__builtin_constant_p -- GNU extension to determine compile time constants
SYNOPSIS
int
__builtin_constant_p(value);
DESCRIPTION
The __builtin_constant_p() is a GNU extension for determining whether a value is known to be constant at compile time. The function is
closely related to the concept of ``constant folding'' used by modern optimizing compilers.
If the value is known to be a compile-time constant, a value 1 is returned. If __builtin_constant_p() returns 0, the value is not a compile-
time constant in the sense that gcc(1) was unable to determine whether the value is constant or not.
EXAMPLES
A typical example of the use of __builtin_constant_p() involves a situation where it may be desirable to fold the computation if it involves
a constant, but a function call is needed otherwise. For instance, bswap16(3) is defined in NetBSD as:
#define bswap16(x)
(__builtin_constant_p((x)) ?
__byte_swap_u16_constant(x) : __BYTE_SWAP_U16_VARIABLE(x))
SEE ALSO
gcc(1), __builtin_object_size(3), __builtin_return_address(3)
CAVEATS
This is a non-standard, compiler-specific extension.
BSD
December 19, 2010 BSD