Source: libpdl-netcdf-perl Version: 4.20-4 Severity: wishlist Tags: patch User: reproducible-bui...@lists.alioth.debian.org Usertags: randomness X-Debbugs-Cc: reproducible-bui...@lists.alioth.debian.org
Hi! While working on the "reproducible builds" effort [1], we have noticed that libpdl-netcdf-perl could not be built reproducibly. While producing output it iterates over a hash in an unsorted order. The attached patch fixes this. Regards, Reiner [1]: https://wiki.debian.org/ReproducibleBuilds
diff --git a/debian/patches/reproducible-build.patch b/debian/patches/reproducible-build.patch
new file mode 100644
index 0000000..cb2d165
--- /dev/null
+++ b/debian/patches/reproducible-build.patch
@@ -0,0 +1,14 @@
+Author: Reiner Herrmann <rei...@reiner-h.de>
+Description: Sort RETVAL keys for reproducible build
+
+--- a/netcdf.pd
++++ b/netcdf.pd
+@@ -822,7 +822,7 @@
+ $xsout .= ");\n";
+ $xsout .= "OUTPUT:\n";
+ $xsout .= "\tRETVAL\n";
+- foreach $var (keys %output) {
++ foreach $var (sort keys %output) {
+ $xsout .= "\t$var\n";
+ }
+ $xsout .= "\n\n";
diff --git a/debian/patches/series b/debian/patches/series
index 44e398b..98b895b 100644
--- a/debian/patches/series
+++ b/debian/patches/series
@@ -2,3 +2,4 @@ perl-5.14-ccflags.patch
spelling-errors.patch
32bits-integer-size.patch
skip-tests-for-big-endian.patch
+reproducible-build.patch
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