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Best practice for make files?


 
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Old 12-22-2010
Best practice for make files?

I currently have two projects, one being a shared library and the other an application
The problem I am facing is that I need to compile and install the library then run an ldconfig before attempting to compile the application(dependency)

What would be the best practice for a one time command(compiles&installs everything)?

Should I make a bash-script that compiles and installs the library(via the makefile) and then compile & install the application? In this case he has to run as root

Should I force the user to compile & install the library 1st and then then application(each having their own makefile)?

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LDCONFIG(8)						     Linux Programmer's Manual						       LDCONFIG(8)

NAME
ldconfig - configure dynamic linker run-time bindings SYNOPSIS
/sbin/ldconfig [ -nNvXV ] [ -f conf ] [ -C cache ] [ -r root ] directory ... /sbin/ldconfig -l [ -v ] library ... /sbin/ldconfig -p DESCRIPTION
ldconfig creates the necessary links and cache to the most recent shared libraries found in the directories specified on the command line, in the file /etc/ld.so.conf, and in the trusted directories (/lib and /usr/lib). The cache is used by the run-time linker, ld.so or ld- linux.so. ldconfig checks the header and filenames of the libraries it encounters when determining which versions should have their links updated. ldconfig will attempt to deduce the type of ELF libs (i.e., libc5 or libc6/glibc) based on what C libs, if any, the library was linked against. Some existing libs do not contain enough information to allow the deduction of their type. Therefore, the /etc/ld.so.conf file format allows the specification of an expected type. This is used only for those ELF libs which we can not work out. The format is "dirname=TYPE", where TYPE can be libc4, libc5, or libc6. (This syntax also works on the command line.) Spaces are not allowed. Also see the -p option. ldconfig should normally be run by the superuser as it may require write permission on some root owned directories and files. OPTIONS
-v Verbose mode. Print current version number, the name of each directory as it is scanned, and any links that are created. Overrides quiet mode. -n Only process directories specified on the command line. Don't process the trusted directories (/lib and /usr/lib) nor those speci- fied in /etc/ld.so.conf. Implies -N. -N Don't rebuild the cache. Unless -X is also specified, links are still updated. -X Don't update links. Unless -N is also specified, the cache is still rebuilt. -f conf Use conf instead of /etc/ld.so.conf. -C cache Use cache instead of /etc/ld.so.cache. -r root Change to and use root as the root directory. -l Library mode. Manually link individual libraries. Intended for use by experts only. -p Print the lists of directories and candidate libraries stored in the current cache. FILES
/lib/ld.so run-time linker/loader /etc/ld.so.conf File containing a list of colon, space, tab, newline, or comma-separated directories in which to search for libraries. /etc/ld.so.cache File containing an ordered list of libraries found in the directories specified in /etc/ld.so.conf, as well as those found in /lib and /usr/lib. SEE ALSO
ldd(1), ld.so(8) COLOPHON
This page is part of release 3.55 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/. GNU
2012-05-10 LDCONFIG(8)

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