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For PR619:

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Make any header files that are automatically generated be preconditions of
the compilation. This ensures that if a *.h.in file is changed then its
corresponding *.h file gets updated on the next rebuild. Note that this can
lead to confusing (but correct) results if the *.h.in file changed
unsubstantially so that autoheader doesn't update the *.h file. In that case,
manually touch the *.h file in question to restore order. Moral of the story,
if you're going to "touch" a *.in file then modify it substantially.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23006 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Reid Spencer
2005-08-24 10:43:10 +00:00
parent 0a262ba7c3
commit 755bcf086d
2 changed files with 20 additions and 0 deletions
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4
autoconf/configure.ac
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@@ -634,6 +634,10 @@ dnl===
dnl===-----------------------------------------------------------------------===
dnl Configure header files
dnl WARNING: dnl If you add or remove any of the following config headers, then
dnl you MUST also update Makefile.rules so that the variable FilesToConfig
dnl contains the same list of files as AC_CONFIG_HEADERS below. This ensures the
dnl files can be updated automatically when their *.in sources change.
AC_CONFIG_HEADERS([include/llvm/Config/config.h])
AC_CONFIG_HEADERS([include/llvm/Support/DataTypes.h])
AC_CONFIG_HEADERS([include/llvm/ADT/hash_map])