That would be:
LD_LIBRARY_PATH was generally meant for runtime not compile time - that is up to you with -L. Using an oddball version of a generally standard library is the path to future problems. I would link against the archive (.a) rather than the .so -- if you plan to move it to other boxes.
Dear all, I have downloaded the latest version of gcc --- gcc-3.3.1.tar.gz from gnu.org. My Linux distribution is Mandrake 9.0. This was how I installed it:
su -
passwrd:
mkdir /usr/local/src
cd /usr/local/src
gunzip /tmp/gcc-3.3.1.tar.gz #where I downloaded the file
tar xvf... (2 Replies)
Im trying to compile some code that involves using X-Windows based functions (XDisplayName() and XOpenDisplay() ), however each time I run the compiler, Im getting a problem with the linker.
The linker says that both XDisplayName() and XOpenDisplay() are unresolved text symbols. Is there a... (1 Reply)
Hi,
I'm confused about the GCC & Linking process could somebody please briefly explain?
I have GCC 3.4.6 installed from SunFreeware. Reading the narrative alongside the package states "It was compiled to use the SUN assembler and loader usually in /usr/ccs/bin if the SUNW developer packages... (1 Reply)
Hello
I using CygWin and am working on project that requires whereby after I make some code changes and rebuild I have to manually copy the updated files into the install directory to test them. There is a build output directory where these files placed, but the program will not run from there.... (4 Replies)
Hi,
I would like "grep" command to search ALL files in current directory in the order of their modified/created date. How can i do this?
e.g., if 3 files contain the pattern i am searching for, i need the output of "grep" to be in the order such that old file search result should come first.... (6 Replies)
Hi,
I do not use the default linker, and instead us another one and pass this argument -Wl,--dynamic-linker=<path to linker> to gcc when compiling. However, what happens if the linker is not under /lib and /lib64 and I am not able to create a symlink to the linker in /lib or /lib64 due to no... (2 Replies)
Hai,
I have two (Pgm1.c and Pgm2.c) simple programs, which is compiled using gcc. Now we have two exe's (Pgm1 and Pgm2). When i executed the nm Pgm1 and nm Pgm2, in the listed symbols the address of main is same for both programs (08048344 T main) at run time also.
Doubt:
1) What is this... (3 Replies)
I would like to compile a binary that doesnot depend on LD_LIBRARY_PATH as this binary will be setuid to owner and used by other users and since setuid doesnot support LD_LIBRARY_PATH making it independent of LD_LIBRARY_PATH would be great.
But I am not able to specify the path of the shared... (1 Reply)
Probably simple, but I don't see it.
jack@veritron /u/email $ cat p3.php
<?php
require_once './lib/swift_required.php';
$x=get_include_path();
echo "$x \n";
set_include_path('./lib:./lib/classes:'.$x);
$x=get_include_path();
echo "$x \n";
$transport =... (1 Reply)
Discussion started by: jgt
1 Replies
LEARN ABOUT NETBSD
ldconfig
LDCONFIG(8) BSD System Manager's Manual LDCONFIG(8)NAME
ldconfig -- configure the a.out shared library cache
SYNOPSIS
ldconfig [-cmrsSv] [directory ...]
DESCRIPTION
ldconfig is used to prepare a set of ``hints'' for use by the a.out run-time linker ld.so to facilitate quick lookup of shared libraries
available in multiple directories. ldconfig is only available on systems that use the ``a.out'' format for executables and libraries - on
ELF systems, all the work is done by ld.elf_so.
By default, it scans a set of built-in system directories, directories listed in /etc/ld.so.conf, and any directories specified on the com-
mand line (in the given order) looking for shared libraries and stores the results in the file /var/run/ld.so.hints to forestall the overhead
that would otherwise result from the directory search operations ld.so would have to perform to load required shared libraries.
The shared libraries so found will be automatically available for loading if needed by the program being prepared for execution. This obvi-
ates the need for storing search paths within the executable.
The LD_LIBRARY_PATH environment variable can be used to override the use of directories (or the order thereof) from the cache or to specify
additional directories where shared libraries might be found. LD_LIBRARY_PATH is a ':' separated list of directory paths that are searched
by ld.so when it needs to load a shared library. It can be viewed as the run-time equivalent of the -L switch of ld.
ldconfig is typically run as part of the boot sequence.
The following options are recognized by ldconfig:
-c Do not scan directories listed in /etc/ld.so.conf for shared libraries.
-m Merge the result of the scan of the directories given as arguments into the existing hints file. The default action is to build the
hints file afresh.
-r Lists the current contents of ld.so.hints on the standard output. The hints file will not be modified.
-s Do not scan the built-in system directory (/usr/lib), nor any directories listed in /etc/ld.so.conf for shared libraries.
-S Do not scan the built-in system directory (/usr/lib), for shared libraries. (Directories listed in /etc/ld.so.conf are still
scanned.)
-v Switch on verbose mode.
FILES
/var/run/ld.so.hints, /etc/ld.so.conf
SEE ALSO ld(1), ld.so(1), ld.so.conf(5), link(5)HISTORY
A ldconfig utility first appeared in SunOS 4.0, it appeared in its current form in NetBSD 0.9A.
SECURITY CONSIDERATIONS
Special care must be taken when loading shared libraries into the address space of set-user-ID programs. Whenever such a program is run,
ld.so will only load shared libraries from the ld.so.hints file. In particular, the LD_LIBRARY_PATH and LD_PRELOAD is not used to search for
libraries. Thus, the role of ldconfig is dual. In addition to building a set of hints for quick lookup, it also serves to specify the
trusted collection of directories from which shared objects can be safely loaded. It is presumed that the set of directories specified to
ldconfig is under control of the system's administrator. ld.so further assists set-user-ID programs by erasing the LD_LIBRARY_PATH and
LD_PRELOAD from the environment.
BSD October 8, 2000 BSD