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llvm-6502/autoconf
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Reid Spencer 104298d1b4 Search for tclsh last so we don't find the FreeBSD warning script. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@18420 91177308-0d34-0410-b5e6-96231b3b80d8
2004-12-02 07:29:17 +00:00
..
m4 Search for tclsh last so we don't find the FreeBSD warning script. 2004-12-02 07:29:17 +00:00
AutoRegen.sh Changes to support rand48 tests 2004-10-27 23:03:44 +00:00
config.guess
config.sub
configure.ac Add a check for the tclsh program needed by dejagnu. This can have weird 2004-11-30 08:11:54 +00:00
depcomp
install-sh
LICENSE.TXT
ltmain.sh
missing
mkinstalldirs
README.TXT * Update instructions about upgrading libtool 2004-11-29 12:28:47 +00:00

README.TXT 

Upgrading Libtool
===============================================================================

If you are in the mood to upgrade libtool, you must do the following:

 1. Get the new version of libtool and put it in <SRC>
 2. configure/build/install libtool with --prefix=<PFX>
 3. Copy <SRC>/ltdl.m4 to llvm/autoconf/m4
 4. Copy <PFX>/share/aclocal/libtool.m4 to llvm/autoconf/m4/libtool.m4
 5. Copy <PFX>/share/libtool/ltmain.sh to llvm/autoconf/ltmain.sh
 6. Copy <PFX>/share/libtool/libltdl/ltdl.c to llvm/lib/System
 7. Copy <PFX>/share/libtool/libltdl/ltdl.h to llvm/lib/System
 8. Adjust the llvm/autoconf/m4/libtool.m4 file to ensure that the variable
    default_ofile is set to "mklib" instead of "libtool"
 9. Run "autoupdate libtool.m4 ltdl.m4" in the llvm/autoconf/m4 directory.
    This should correctly update the macro definitions in the libtool m4 
    files to match the version of autoconf that LLVM uses. This converts
    AC_HELP_STRING to AS_HELP_STRING and AC_TRY_LINK to AC_LINK_IFELSE, amongst
    other things. You may need to manually adjust the files.
10. Run AutoRegen.sh to get the new macros into configure script
11. If there are any warnings from configure, go to step 9.
12. Rebuild LLVM, making sure it reconfigured
13. Test the JIT which uses libltdl
14. If it all works, only THEN commit the changes.

Upgrading autoconf
===============================================================================

If you are in the mood to upgrade autoconf, you should:

 1. Consider not upgrading.
 2. No really, this is a hassle, you don't want to do it.
 3. Get the new version of autoconf and put it in <SRC>
 4. configure/build/install autoconf with --prefix=<PFX>
 5. Run autoupdate on all the m4 macros in llvm/autoconf/m4
 6. Run autoupdate on llvm/autoconf/configure.ac
 7. Regenerate configure script with AutoRegen.sh
 8. If there are any warnings from autoconf, fix them and go to step 7.
 9. Test, test, test.