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diff --git a/postfix-install b/postfix-install
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index 6b2a261..3edd2c6 100644
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--- a/postfix-install
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+++ b/postfix-install
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@@ -40,6 +40,10 @@
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# is installed from a pre-built package or from source code.
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#
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# Arguments
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+# .IP -keep-build-mtime
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+# When installing files preserve new file's mtime timestamps.
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+# Otherwise, mtimes will be set to the time that postfix-install
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+# is run.
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# .IP -non-interactive
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# Do not ask the user for parameter settings. Installation parameters
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# are specified via one of the non-interactive methods described
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@@ -179,6 +183,7 @@ BACKUP_IFS="$IFS"
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LC_ALL=C; export LC_ALL
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USAGE="Usage: $0 [name=value] [option]
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+ -keep-build-mtime Preserve build-time file mtime timestamps.
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-non-interactive Do not ask for installation parameters.
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-package Build a ready-to-install package.
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name=value Specify an installation parameter".
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@@ -193,6 +198,8 @@ do
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*=*) IFS= eval $arg; IFS="$BACKUP_IFS";;
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-non-int*) non_interactive=1;;
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-package) need_install_root=install_root;;
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+-keep-build-mtime)
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+ keep_build_mtime=1;;
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*) echo "$0: Error: $USAGE" 1>&2; exit 1;;
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esac
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shift
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@@ -245,6 +252,7 @@ compare_or_replace() {
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echo Updating $dst...
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rm -f $tempdir/junk || exit 1
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cp $src $tempdir/junk || exit 1
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+ test -z "$keep_build_mtime" || touch -r $src $tempdir/junk || exit 1
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mv -f $tempdir/junk $dst || exit 1
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test -z "$owner" || chown $owner $dst || exit 1
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test -z "$group" || chgrp $group $dst || exit 1
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