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Re: how to install library in a specific directory?

From: John Calcote
Subject: Re: how to install library in a specific directory?
Date: Wed, 22 Jul 2009 10:30:06 -0600
User-agent: Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.1b3pre) Gecko/20090223 Thunderbird/3.0b2

On 7/22/2009 2:12 AM, bonami wrote:
   I have two projects. One generates a shared library and the other uses it.
The library is to be installed in /usr/local/lib/ezproject, while the
project's name is ezcommon. I have problems in both the projects.
AC_INIT(ezcommon, 3.0)
libdir = $(exec_prefix)/lib/ezproject
includedir = $(prefix)/include/ezproject
   Problem is, if user configure --libdir=..., the user's definition will be
ignored. How can I set libdir only when user does not assign it? (Since this
dir name is not same as project name, I cannot use pkglib_.)

mylibdir = $(libdir)/ezproject

myincludedir = $(includedir)/ezproject
myinclude_HEADERS = ...

   The other question is how to check for this library in the other project,
named ezcmd.
AC_CHECK_LIB([ezcommon], main,,AC_MSG_ERROR(...))
   This check will fail, since ezcommon is installed in /usr/local/lib/
ezproject by default. Should I add LDFLAGS=-Lezproject or sth.? And how? Or
should I add this directory to system's link-search directory?

If you put your libraries in a non-standard location, then you'll have to add that location to the library search path in one way or another. Either of the options you mention will work. One other option is to generate and install a pkgconfig description file, then use pkgconfig to locate the library.


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