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nixpkgs/pkgs/tools/package-management/dpkg/cache-arch.patch
Eelco Dolstra 6751fac418 dpkg: Fix caching of architecture name
Our deb-closure script would causes zillions of invocations of "dpkg
--print-architecture", which is rather slow.
2012-12-04 19:54:44 +01:00

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Don't invoke "dpkg --print-architecture" for every call to
Dpkg::Arch::get_raw_build_arch().
diff -ru -x '*~' dpkg-1.16.9/scripts/Dpkg/Arch.pm dpkg-1.16.9-new/scripts/Dpkg/Arch.pm
--- dpkg-1.16.9/scripts/Dpkg/Arch.pm 2012-10-20 06:34:17.000000000 +0200
+++ dpkg-1.16.9-new/scripts/Dpkg/Arch.pm 2012-12-04 19:42:20.451002537 +0100
@@ -59,7 +59,7 @@
# dpkg-architecture itself, by avoiding computing the DEB_BUILD_
# variables when they are not requested.
- my $build_arch = `dpkg --print-architecture`;
+ $build_arch = `dpkg --print-architecture`;
syserr("dpkg --print-architecture failed") if $? >> 8;
chomp $build_arch;