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* doc/libtool.texi (Distributing libltdl): document use of

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ltdl.m4.
* libltdl/configure.in: Removed header checks, as they are
* libltdl/ltdl.m4: Added header checks from configure.in, so that
AC_LIB_LTDL is sufficient to compile ltdl.c.
Reported by Stephan Kulow <coolo@kde.org>.
This commit is contained in:
Gary V. Vaughan 1999-12-13 13:44:29 +00:00
parent 9b9bf0b391
commit b94899573d
5 changed files with 42 additions and 9 deletions
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8
ChangeLog
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@ -1,5 +1,13 @@
1999-12-13 Gary V. Vaughan <gary@oranda.demon.co.uk>
* doc/libtool.texi (Distributing libltdl): document use of
ltdl.m4.
* libltdl/configure.in: Removed header checks, as they are
automatically performed by AC_LIB_LTDL.
* libltdl/ltdl.m4: Added header checks from configure.in, so that
AC_LIB_LTDL is sufficient to compile ltdl.c.
Reported by Stephan Kulow <coolo@kde.org>.
* ltconfig.in (ltdll_obj): fixed typo: objdir -> $objdir
1999-12-12 Gary V. Vaughan <gary@oranda.demon.co.uk>

2
NEWS
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@ -1,7 +1,7 @@
NEWS - list of user-visible changes between releases of GNU Libtool
New in 1.3d: 1999-??-??; CVS version 1.3c, Libtool team:
:* m4 macros needed to configure libltdl split out into libltdl/ltdl.m4.
* m4 macros needed to configure libltdl split out into libltdl/ltdl.m4.
* Start of support code for cross-compiling to win32.
* Improved support for mingw32.
* Improved support for Compaq Tru64 V5.0, and Digital Unix V4.*.

21
doc/libtool.texi
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@ -3056,8 +3056,25 @@ foo1_la_LDFLAGS = -module
Even though libltdl is installed together with libtool, you may wish to
include libltdl in the distribution of your package, for the convenience
of users of your package that don't have libtool or libltdl installed.
In this case, you may decide which flavor of libltdl you want to use: a
convenience library or an installable libtool library.
In this case, you must decide whether to manually add the @code{ltdl}
objects to your package, or else which flavor of libltdl you want to use:
a convenience library or an installable libtool library.
The most simplistic way to add @code{ltdl} to your package is to copy
the source files, @file{ltdl.c} and @file{ltdl.h}, to a source
directory withing your package and to build and link them along with
the rest of your sources. To help you do this, the m4 macros for
autoconf are available in @file{ltdl.m4}. You must ensure that they
are available in @file{aclocal.m4} before you run autoconf -- either
by copying @file{ltdl.m4} to the macro directory of your package (if
you have one) before running aclocal, or else @code{cat}ting its contents
directly to the end of @file{aclocal.m4} if you are not using automake.
Having made the macros available, you must add a call to the
@samp{AC_LIB_LTDL} macro to your package's @file{configure.in} to perform
the configure time checks required to build @file{ltdl.o} correctly.
This method has problems if you then try to link the package binaries
with an installed libltdl, or a library which depends on libltdl, which
will cause problems with multiple symbol definitions.
One advantage of the convenience library is that it is not installed, so
the fact that you use libltdl will not be apparent to the user, and it

6
libltdl/configure.in
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@ -24,12 +24,6 @@ AC_C_INLINE
AM_PROG_LIBTOOL
AC_SUBST(LIBTOOL_DEPS)
AC_HEADER_STDC
AC_CHECK_HEADERS(malloc.h memory.h stdlib.h stdio.h ctype.h dlfcn.h dl.h dld.h)
AC_CHECK_HEADERS(string.h strings.h, break)
AC_CHECK_FUNCS(strchr index, break)
AC_CHECK_FUNCS(strrchr rindex, break)
AC_LIB_LTDL
dnl Output the makefile

14
libltdl/ltdl.m4
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@ -24,6 +24,20 @@
AC_DEFUN(AC_LIB_LTDL,
[AC_PREREQ(2.13)dnl
AC_REQUIRE([AC_PROG_CC])dnl
AC_REQUIRE([AC_C_CONST])dnl
AC_REQUIRE([AC_C_INLINE])dnl
dnl AC_LIB_LTDL must perform all the checks necessary for compilation
dnl of the ltdl objects -- including compiler checks (above) and header
dnl checks (below).
AC_REQUIRE([AC_HEADER_STDC])dnl
AC_CHECK_HEADERS(malloc.h memory.h stdlib.h stdio.h ctype.h dlfcn.h dl.h dld.h)
AC_CHECK_HEADERS(string.h strings.h, break)
AC_CHECK_FUNCS(strchr index, break)
AC_CHECK_FUNCS(strrchr rindex, break)
AC_REQUIRE([AC_LTDL_ENABLE_INSTALL])dnl
AC_REQUIRE([AC_LTDL_SHLIBEXT])dnl
AC_REQUIRE([AC_LTDL_SHLIBPATH])dnl