Description: make 2.7.x versions be detected as 2.7
 A minor upgrade of the library in Debian causes this package to fail to build
Author: Damyan Ivanov <dmn@debian.org>
Bug-Debian: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=993323

--- a/Build.PL
+++ b/Build.PL
@@ -445,6 +445,7 @@
 
     if ($gsl_version =~ m{\A(\d+(?:\.\d+)+)}) {
         $current_version = $1;
+        $current_version =~ s/^2\.7\K\..*//;
         my @current = split /\./, $current_version;
         print $fh "#define GSL_VERSION $current[0].$current[1]\n";
         print $fh "#define GSL_MAJOR_VERSION $current[0]\n";