Patch for editors/lyx

[Connor McLaughlan <cont6pro3%gmail.com@localhost>]

Hi,

i am using pkgsrc-2020Q2 and editors/lyx version 2.3.2 was not
building on sparc64, but the problem is unrelated to the architecture.

The error was a missing include:

gmake[4]: Entering directory '/usr/pkgsrc/editors/lyx/work/lyx-2.3.2/src'
  CHK      lyx_commit_hash.h
  CXX      insets/ExternalTemplate.o
insets/ExternalTemplate.cpp: In member function 'void
lyx::external::Template::dumpFormats(std::ostream&) const':
insets/ExternalTemplate.cpp:194:2: error: 'for_each' was not declared
in this scope
  for_each(formats.begin(), formats.end(), DumpFormat(os));
  ^~~~~~~~
[...]
gmake[4]: *** [Makefile:2389: insets/ExternalTemplate.o] Error 1
gmake[4]: Leaving directory '/usr/pkgsrc/editors/lyx/work/lyx-2.3.2/src'
gmake[3]: *** [Makefile:2467: all-recursive] Error 1


I have found an analysis and patch allowing me to build it again here:
https://bugs.gentoo.org/730340

diff --git a/src/insets/ExternalTemplate.cpp b/src/insets/ExternalTemplate.cpp
index ae9148b..39a96ae 100644
--- a/src/insets/ExternalTemplate.cpp
+++ b/src/insets/ExternalTemplate.cpp
@@ -22,6 +22,7 @@
 #include "support/PathChanger.h"
 #include "support/Translator.h"

+#include <algorithm>
 #include <ostream>

 using namespace std;


Regards,
Connor