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Diffstat (limited to 'autoconf')
| -rw-r--r-- | autoconf/README.TXT | 35 |
1 files changed, 0 insertions, 35 deletions
diff --git a/autoconf/README.TXT b/autoconf/README.TXT index 3dabdf7b87..2fc9d3a3c4 100644 --- a/autoconf/README.TXT +++ b/autoconf/README.TXT @@ -1,38 +1,3 @@ -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. Edit the ltdl.h file to #include "llvm/Config/config.h" at the very top. You - might also need to resolve some compiler warnings (typically about - comparison of signed vs. unsigned values). But, you won't find out about - those until you build LLVM (step 13). - 9. Edit the llvm/autoconf/m4/libtool.m4 file so that: - a) in AC_PROB_LIBTOOL macro, the value of LIBTOOL is set to - $(top_builddir)/mklib, not $(top_builddir)/libtool - b) in AC_LIBTOOL_SETUP macro, the variable default_ofile is set to - "mklib" instead of "libtool" - c) s/AC_ENABLE_SHARED_DEFAULT/enable_shared_default/g - d) s/AC_ENABLE_STATIC_DEFAULT/enable_static_default/g - e) s/AC_ENABLE_FAST_INSTALL_DEFAULT/enable_fast_install_default/g -10. 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. -11. Run AutoRegen.sh to get the new macros into configure script -12. If there are any warnings from AutoRegen.sh, go to step 9. -13. Rebuild LLVM, making sure it reconfigures -14. Test the JIT which uses libltdl -15. If it all works, only THEN commit the changes. - Upgrading autoconf =============================================================================== |