This patch fixes a regex parsing compatibility issue with Perl 5.26.0. It manifests during the configure phase of at-spi2-core like this: ------ Unescaped left brace in regex is illegal here in regex; marked by <-- HERE in m/^(.*)\${ <-- HERE ?([A-Z_]+)}?(.*)$/ at /gnu/store/...-intltool-0.51.0/bin/intltool-update line 1065. ------ Copied from Gentoo and MSYS2: https://gitweb.gentoo.org/repo/gentoo.git/tree/dev-util/intltool/files/intltool-0.51.0-perl-5.26.patch?id=1105187fc65d8bf643e682fcef39620dcfd9326a https://github.com/Alexpux/MSYS2-packages/blob/0d3f442553ae4fc8798e32cbf44c4252fa8f3c07/intltool/perl-5.22-compatibility.patch #diff -ruN intltool-0.51.0.orig/intltool-update.in intltool-0.51.0/intltool-update.in #--- intltool-0.51.0.orig/intltool-update.in 2017-06-28 00:47:20.889269294 +0200 #+++ intltool-0.51.0/intltool-update.in 2017-06-28 00:48:14.592271529 +0200 #@@ -1068,7 +1068,7 @@ # my $untouched = $1; # my $sub = ""; # # Ignore recursive definitions of variables #- $sub = $varhash{$2} if defined $varhash{$2} and $varhash{$2} !~ /\${?$2}?/; #+ $sub = $varhash{$2} if defined $varhash{$2} and $varhash{$2} !~ /\$\{?$2}?/; # # return SubstituteVariable ("$untouched$sub$rest"); # } --- intltool-0.51.0.orig/intltool-update.in 2015-03-09 02:39:54.000000000 +0100 +++ intltool-0.51.0.orig/intltool-update.in 2015-06-19 01:52:07.171228154 +0200 @@ -1062,7 +1062,7 @@ } } - if ($str =~ /^(.*)\${?([A-Z_]+)}?(.*)$/) + if ($str =~ /^(.*)\$\{?([A-Z_]+)}?(.*)$/) { my $rest = $3; my $untouched = $1; @@ -1068,7 +1068,7 @@ my $untouched = $1; my $sub = ""; # Ignore recursive definitions of variables - $sub = $varhash{$2} if defined $varhash{$2} and $varhash{$2} !~ /\${?$2}?/; + $sub = $varhash{$2} if defined $varhash{$2} and $varhash{$2} !~ /\$\{?$2}?/; return SubstituteVariable ("$untouched$sub$rest"); } @@ -1190,10 +1190,10 @@ $name =~ s/\(+$//g; $version =~ s/\(+$//g; - $varhash{"PACKAGE_NAME"} = $name if (not $name =~ /\${?AC_PACKAGE_NAME}?/); - $varhash{"PACKAGE"} = $name if (not $name =~ /\${?PACKAGE}?/); - $varhash{"PACKAGE_VERSION"} = $version if (not $name =~ /\${?AC_PACKAGE_VERSION}?/); - $varhash{"VERSION"} = $version if (not $name =~ /\${?VERSION}?/); + $varhash{"PACKAGE_NAME"} = $name if (not $name =~ /\$\{?AC_PACKAGE_NAME}?/); + $varhash{"PACKAGE"} = $name if (not $name =~ /\$\{?PACKAGE}?/); + $varhash{"PACKAGE_VERSION"} = $version if (not $name =~ /\$\{?AC_PACKAGE_VERSION}?/); + $varhash{"VERSION"} = $version if (not $name =~ /\$\{?VERSION}?/); } if ($conf_source =~ /^AC_INIT\(([^,\)]+),([^,\)]+)[,]?([^,\)]+)?/m) @@ -1219,11 +1219,11 @@ $version =~ s/\(+$//g; $bugurl =~ s/\(+$//g if (defined $bugurl); - $varhash{"PACKAGE_NAME"} = $name if (not $name =~ /\${?AC_PACKAGE_NAME}?/); - $varhash{"PACKAGE"} = $name if (not $name =~ /\${?PACKAGE}?/); - $varhash{"PACKAGE_VERSION"} = $version if (not $name =~ /\${?AC_PACKAGE_VERSION}?/); - $varhash{"VERSION"} = $version if (not $name =~ /\${?VERSION}?/); - $varhash{"PACKAGE_BUGREPORT"} = $bugurl if (defined $bugurl and not $bugurl =~ /\${?\w+}?/); + $varhash{"PACKAGE_NAME"} = $name if (not $name =~ /\$\{?AC_PACKAGE_NAME}?/); + $varhash{"PACKAGE"} = $name if (not $name =~ /\$\{?PACKAGE}?/); + $varhash{"PACKAGE_VERSION"} = $version if (not $name =~ /\$\{?AC_PACKAGE_VERSION}?/); + $varhash{"VERSION"} = $version if (not $name =~ /\$\{?VERSION}?/); + $varhash{"PACKAGE_BUGREPORT"} = $bugurl if (defined $bugurl and not $bugurl =~ /\$\{?\w+}?/); } # \s makes this not work, why?