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* mdemo/Makefile.am (mdemo_LDFLAGS, mdemo_LDADD): moved -dlopen

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flags to LDADD
	* doc/libtool.texi (Using Automake): how to add -dlopen to LDADD
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Alexandre Oliva 1999-01-19 23:45:01 +00:00 committed by Alexandre Oliva
parent 4e2bd756eb
commit 27767b945e
3 changed files with 43 additions and 6 deletions
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6
ChangeLog
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@ -1,3 +1,9 @@
1999-01-19 Alexandre Oliva <oliva@dcc.unicamp.br>
* mdemo/Makefile.am (mdemo_LDFLAGS, mdemo_LDADD): moved -dlopen
flags to LDADD
* doc/libtool.texi (Using Automake): how to add -dlopen to LDADD
1999-01-19 Gary V. Vaughan <gvaughan@oranda.demon.co.uk>
From Andrey Slepuhin <pooh@msu.ru>

35
doc/libtool.texi
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@ -1373,6 +1373,36 @@ hell_debug_LDADD = libhello.la
hell_debug_LDFLAGS = -static
@end example
The flags @samp{-dlopen} or @samp{-dlpreopen} (@pxref{Link mode}) would
fit better in the @var{program_LDADD} variable. Unfortunately, GNU
automake, up to release 1.4, doesn't accept these flags in a
@var{program_LDADD} variable, so you have the following alternatives:
@itemize @bullet
@item
add them to @var{program_LDFLAGS}, and optionally list the libraries in
@var{program_DEPENDENCIES}, then wait for a release of GNU automake that
accepts these flags where they belong;
@item
surround the flags between quotes, but then you must set
@var{program_DEPENDENCIES} too:
@example
program_LDADD = "-dlopen" libfoo.la
program_DEPENDENCIES = libfoo.la
@end example
@item
set and @samp{AC_SUBST} variables @var{DLOPEN} and @var{DLPREOPEN} in
@file{configure.in} and use @samp{@@DLOPEN@@} and @samp{@@DLPREOPEN@@}
instead of @samp{-dlopen} and @samp{-dlpreopen} in
@samp{program_LDADD}. Automake will discard @samp{AC_SUBST}ed variables
from dependencies, so it will behave exactly as we expect it to behave
when it accepts these flags in @samp{program_LDADD}. But hey!, this is
ugly!
@end itemize
You may use the @samp{program_LDFLAGS} variable to stuff in any flags
you want to pass to libtool while linking @samp{program} (such as
@samp{-static} to avoid linking uninstalled shared libtool libraries).
@ -1622,11 +1652,12 @@ and, to @file{Makefile.in} or @file{Makefile.am}:
@example
LIBTOOL_DEPS = @@LIBTOOL_DEPS@@
libtool: $(LIBTOOL_DEPS)
./config.status --recheck
$(SHELL) ./config.status --recheck
@end example
If you are using GNU automake, you can omit the assignment, as automake
will take care of it.
will take care of it. You'll obviously have to create some dependency
on @file{libtool}.
@end defmac

8
mdemo/Makefile.am
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@ -24,14 +24,14 @@ bin_PROGRAMS = mdemo mdemo.debug
# Create a version of mdemo that does dlopen.
mdemo_SOURCES = main.c
mdemo_LDADD = ../libltdl/libltdlc.la
mdemo_LDFLAGS = -dlopen foo1.la -dlopen libfoo2.la \
-export-dynamic ## FIXME: remove this when libtool and libltdl
mdemo_LDFLAGS = -export-dynamic ## FIXME: remove this when libtool and libltdl
## handle dependencies of modules
## The quotes around -dlopen below fool automake into accepting it
mdemo_LDADD = ../libltdl/libltdlc.la "-dlopen" foo1.la "-dlopen" libfoo2.la
mdemo_DEPENDENCIES = ../libltdl/libltdlc.la foo1.la libfoo2.la
# Create an easier-to-debug version of mdemo.
mdemo_debug_SOURCES = $(mdemo_SOURCES)
mdemo_debug_LDADD = $(mdemo_LDADD)
mdemo_debug_LDFLAGS = -static $(mdemo_LDFLAGS)
mdemo_debug_LDADD = $(mdemo_LDADD)
mdemo_debug_DEPENDENCIES = $(mdemo_DEPENDENCIES)