build: Execute ldconfig to build cache. (take two)

On some platforms a multiarch approach is used for libraries.
The build system does not take this into account and still
places libraries into the lib directory if no --libdir is
specified to configure. On initial startup this results in
libasteriskssl.so not being found, as it is not in the multiarch
lib directory.  To make matters worse, options were being passed
to ldconfig on both Linux and FreeBSD that actually prevented
the rebuild of the cache.

 * Fedora has a /usr/share/config.site that automatically tells
   autoconf to use /usr/lib64 but CentOS does not. This logic was
   copied to configure.ac and modified so systems like Ubuntu,
   which still use /usr/lib for 64-bit systems, aren't affected.

Now that we have them in the correct directory...

In order for the system loader to find libasteriskssl and
libasteriskpj, one of 3 things has to happen...

  - The linker cache must be rebuilt including the directory
    where the libasterisk* libraries were installed.  Only root
    can rebuild the cache.  This was busted.
  - We have to link the asterisk binary with an rpath pointing
    to the directrory where the libasterisk* libraries were
    installed.  This makes things very complicated and will happen
    over the collective dead bodies of everyone who's had to
    package a distribution with an rpath.
  - Finally, you can start asterisk with LD_LIBRARY_PATH set to the
    directrory where the libasterisk* libraries were installed.

There are no other options. So...

 * The invokation of ldconfig has been moved from main/Makefile
   to ASTTOPDIR/Makefile, the options have been removed, and
   DESTDIR/ASTLIBDIR appended.  If you aren't root, you will be
   warned after the "Asterisk Installation Compete" banner that
   you must re-run 'make install' as root, manually run
   'ldconfig DESTDIR/ASTLIBDIR' as root, or run asterisk with
   LD_LIBRARY_PATH.

ASTERISK-26705

Change-Id: I2a64b7c33a7d3e9bde20f47e3d3ab771977af982

1 files changed, 21 insertions, 0 deletions

diff --git a/configure.ac b/configure.ac
index 1d3b8a554..039648a43 100644
--- a/configure.ac
+++ b/configure.ac
@@ -135,6 +135,27 @@ if test ${prefix} = ${ac_default_prefix} || test ${prefix} = 'NONE'; then
      fi
 fi
 
+#
+# The following code for detecting lib64 was taken from Fedora's
+# /usr/share/config.site with a modification to check that the
+# /usr/lib64 directory actually exists.  This prevents libdir from
+# being set to /usr/lib64 on 64-bit systems that still use /usr/lib.
+#
+if test "$prefix" = /usr ||\
+     { test "$prefix" = NONE && test "$ac_default_prefix" = /usr ; }
+then
+     for i in x86_64 ppc64 s390x aarch64; do
+        if test $host_cpu = $i; then
+           if test "$libdir" = '${exec_prefix}/lib' &&\
+              { test -d "${exec_prefix}/lib64" || test -d "${ac_default_prefix}/lib64" ; } ; then
+              libdir='${exec_prefix}/lib64'
+              AC_MSG_NOTICE([ Setting libdir=${libdir} ])
+           fi
+           break
+        fi
+     done
+fi
+
 BUILD_PLATFORM=${build}
 BUILD_CPU=${build_cpu}
 BUILD_VENDOR=${build_vendor}