Tim Mooney wrote:
>
> In regard to: Re: question about AC_LTDL_SYS_DLOPEN_DEPLIBS, Gary V....:
>
> >On Thursday 12 July 2001 8:12 pm, Tim Mooney wrote:
> >> I'm not 100% sure I know what
> >>
> >> whether deplibs are loaded by dlopen
> >>
> >> means. Does it mean:
> >>
> >> If you explicitly load a shared object via dlopen(), are any shared
> >> objects that it depends on loaded for you automatically?
> >
> >Yes, exactly that.
>
> Does this macro apply at all to platforms that have some other mechanism
> of dynamically loading a shared object (e.g. HP-UX 10.x and earlier)?
>
> The first paragraph of the dlopen() man page on Tru64 UNIX 5.1 (and 4.0f)
> says that
>
> The dlopen function attempts to load the specified file in the address space
> of the process, resolving symbols as appropriate. Any libraries that the
> specified file depends upon are also loaded.
>
> On IRIX 6.5.x, it's not nearly so clear, but that man page does say
> (when talking about DSOs that are flaged for delayed loading, and I'm
> guessing the same applies elsewhere):
>
> If it has any entries in its
> library list that are not marked LL_DELAY_LOAD, the DSOs that are not
> delay-loaded are added recursively (breadth-first). Depending on the
> order of calls to delay-loaded DSOs, the order of DSOs on the rld-list
> might be different from one run of a program to the next.
>
> Of course, if I really wanted to test on IRIX it could be tested
> programmatically, but I'm not sure I want to whip up the test case to
> do it.
>
> I think the enclosed patch should be correct, for at least recent versions
> of both Tru64 and IRIX.
>
> Tim
Tim:
I added AIX to your list and wrote a test program to test it on
both IRIX and AIX. The dependent lib was opened under irix 6.5.8
and aix 4.3.3. Here is a slightly revised patch against HEAD.
OK to commit?
Robert
--
Robert Boehne Software Engineer
Ricardo Software Chicago Technical Center
TEL: (630)789-0003 x. 238
FAX: (630)789-0127
email: [EMAIL PROTECTED]
2001-07-13 Tim Mooney <[EMAIL PROTECTED]>
* ltdl.m4 (AC_LTDL_SYS_DLOPEN_DEPLIBS): fill in yes for
recent AIX, Digital/Tru64 UNIX and IRIX.
Index: ltdl.m4
===================================================================
RCS file: /cvsroot/libtool/libtool/ltdl.m4,v
retrieving revision 1.25
diff -u -r1.25 ltdl.m4
--- ltdl.m4 2001/07/06 01:08:58 1.25
+++ ltdl.m4 2001/07/13 22:16:16
@@ -73,10 +73,24 @@
# PORTME does your system automatically load deplibs for dlopen()?
libltdl_cv_sys_dlopen_deplibs=unknown
case "$host_os" in
+ aix4*)
+ # Unknown whether this is true for aix5 or aix4.2-
+ libltdl_cv_sys_dlopen_deplibs=yes
+ ;;
+ iris6*)
+ # Unknown if this has always been true, even for early versions of
+ # 6.x, but it's true as of 6.5.x
+ libltdl_cv_sys_dlopen_deplibs=yes
+ ;;
linux*)
libltdl_cv_sys_dlopen_deplibs=yes
;;
netbsd*)
+ libltdl_cv_sys_dlopen_deplibs=yes
+ ;;
+ osf*)
+ # Unknown if this has always been true (i.e. for 1.2 - 3.2g). It
+ # is true for 4.x and later.
libltdl_cv_sys_dlopen_deplibs=yes
;;
solaris*)
