source-highlight: patch for gcc-12

srcpkgs/source-highlight/patches/gcc-12.patch

@@ -0,0 +1,81 @@
+From ab9fe5cb9b85c5afab94f2a7f4b6d7d473c14ee9 Mon Sep 17 00:00:00 2001
+From: Sergei Trofimovich <slyich@gmail.com>
+Date: Mon, 8 Nov 2021 23:30:42 +0000
+Subject: Fix tests build failure on clang and gcc-12
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Both gcc-12 and clang can't find ostream<<(..., std::pair<...>)
+overload when compile lib/tests/test_wordtokenizer_main.cpp and
+fail as:
+
+  ./../srchilite/tostringcollection.h:103:9:
+    error no match for «operator<<» (operand types are «std::ostringstream»
+      {aka «std::__cxx11::basic_ostringstream<char>»}
+      and «const std::pair<std::__cxx11::basic_string<char>,
+                           std::__cxx11::basic_string<char> >»)
+      103 |     buf << (*it);
+          |     ~~~~^~~~~~~~
+
+We fix it by placing overload to std namespace where std::pair<...>
+is defined to make ADL work predictably.
+
+clang also has a trouble compiling lib/tests/stdboosterror.h as:
+
+    ./stdboosterror.h:7:72: error: parameter declarator cannot be qualified
+            std_boost_exception(boost::regex_error(boost::regex_constants::error_bad_pattern));
+                                                   ~~~~~~~~~~~~~~~~~~~~~~~~^
+
+gcc compiles it by accident: https://gcc.gnu.org/PR86564
+
+Let's disambiguate syntax by making it an explicit constructor call.
+---
+ lib/tests/stdboosterror.h             |  2 +-
+ lib/tests/test_wordtokenizer_main.cpp | 10 ++++++++++
+ 2 files changed, 11 insertions(+), 1 deletion(-)
+
+diff --git a/lib/tests/stdboosterror.h b/lib/tests/stdboosterror.h
+index 568545b..d59bfa6 100644
+--- a/lib/tests/stdboosterror.h
++++ b/lib/tests/stdboosterror.h
+@@ -4,7 +4,7 @@
+ #include <boost/regex/pattern_except.hpp>
+ 
+ static boost::regex_error
+-        std_boost_exception(boost::regex_error(boost::regex_constants::error_bad_pattern));
++        std_boost_exception = boost::regex_error(boost::regex_constants::error_bad_pattern);
+ 
+ /**
+  * returns the string representing a standard exception (which
+diff --git a/lib/tests/test_wordtokenizer_main.cpp b/lib/tests/test_wordtokenizer_main.cpp
+index 40e23b1..11ba389 100644
+--- a/lib/tests/test_wordtokenizer_main.cpp
++++ b/lib/tests/test_wordtokenizer_main.cpp
+@@ -11,6 +11,14 @@
+ using namespace std;
+ using namespace srchilite;
+ 
++/*
++ * We have to use 'std' namespaces because 'WordTokenizer::WordTokenizerResults::value_type'
++ * is an std::pair<std::string, std::string> in disguise. We have to place 'operator<<()'
++ * into the same namespace for ADL to work. Otherwise gcc-12 or clang-13 can't find the
++ * overload.
++ */
++namespace std {
++
+ static ostream &operator <<(ostream &os, const WordTokenizer::WordTokenizerResults::value_type &);
+ 
+ ostream &operator <<(ostream &os, const WordTokenizer::WordTokenizerResults::value_type &token) {
+@@ -23,6 +31,8 @@ ostream &operator <<(ostream &os, const WordTokenizer::WordTokenizerResults::val
+     return os;
+ }
+ 
++}
++
+ int main() {
+     WordTokenizer::WordTokenizerResults tokens;
+ 
+-- 
+cgit v1.1
+