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Use a GNU tar flag to shut up warnings about implausibly old timestamp

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commit 46f852cda013b818f113c7905f020131a44f2340 1 parent afa7e01
@edolstra edolstra authored
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12 configure.ac
@@ -339,6 +339,18 @@ eval dynlib_suffix=$shrext_cmds
AC_SUBST(dynlib_suffix)
+# Do we have GNU tar?
+AC_MSG_CHECKING([if you have GNU tar])
+if $tar --version 2> /dev/null | grep -q GNU; then
+ AC_MSG_RESULT(yes)
+ tarFlags="--warning=no-timestamp"
+else
+ AC_MSG_RESULT(no)
+fi
+AC_SUBST(tarFlags)
+
+
+
AM_CONFIG_HEADER([config.h])
AC_CONFIG_FILES([Makefile
src/Makefile
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1  corepkgs/config.nix.in
@@ -9,6 +9,7 @@ in {
bzip2 = "@bzip2@";
xz = "@xz@";
tar = "@tar@";
+ tarFlags = "@tarFlags@";
tr = "@tr@";
curl = "@curl@";
nixBinDir = fromEnv "NIX_BIN_DIR" "@bindir@";
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2  corepkgs/unpack-channel.nix
@@ -6,7 +6,7 @@ let
''
mkdir $out
cd $out
- ${bzip2} -d < $src | ${tar} xf -
+ ${bzip2} -d < $src | ${tar} xf - --warning=no-timestamp
mv * $out/$channelName
'';
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1  substitute.mk
@@ -22,6 +22,7 @@
-e "s^@coreutils\@^$(coreutils)^g" \
-e "s^@sed\@^$(sed)^g" \
-e "s^@tar\@^$(tar)^g" \
+ -e "s^@tarFlags\@^$(tarFlags)^g" \
-e "s^@gzip\@^$(gzip)^g" \
-e "s^@pv\@^$(pv)^g" \
-e "s^@tr\@^$(tr)^g" \
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