| 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. Run sed -e 's/output.exp/outputname.exp/g' on ltmain.sh |
| 7. Copy <PFX>/share/libtool/libltdl/ltdl.c to llvm/lib/System |
| 8. Copy <PFX>/share/libtool/libltdl/ltdl.h to llvm/lib/System |
| 9. Adjust the llvm/autoconf/m4/libtool.m4 file to ensure that the variable |
| default_ofile is set to "mklib" instead of "libtool" |
| 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 configure, go to step 9. |
| 13. Rebuild LLVM, making sure it reconfigured |
| 14. Test the JIT which uses libltdl |
| 15. 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. |