4 files changed, 51 insertions, 3 deletions
diff --git a/academic/gri/UTF8patch.README b/academic/gri/UTF8patch.README
new file mode 100644
index 0000000000..f30c7c969b
--- /dev/null
+++ b/academic/gri/UTF8patch.README
@@ -0,0 +1,19 @@
+Compilation of gri breaks on doc/gri.texi with current tex-info.
+
+"It is because Texinfo 6.7 changed the default input encoding to UTF-8
+and the input is in ISO-8859-1.  The easiest way to fix this would be to 
+convert the input file to UTF-8, but you could also add 
+"@documentencoding ISO-8859-1" to the file." 
+(from email correspondence with texinfo developers)
+
+The patchfile 'gri-texinfo-6.7patch.txt' set the whole file to ISO-8859-1 
+and does not alter the contributor's name. 
+
+
+The other patchfile, 'texinfo-utf8.patch', was generated by Matteo Bernardini
+(http://cgit.ponce.cc/slackbuilds/commit/?h=gri), and changes the accented o in the name.
+
+Either patch allows compilation of gri.
+
+see:
+https://www.linuxquestions.org/questions/slackware-14/sbo-scripts-not-building-on-current-read-1st-post-pls-4175561999/page142.html#post6049662
+\ No newline at end of file
diff --git a/academic/gri/gri-texinfo-6.7patch.txt b/academic/gri/gri-texinfo-6.7patch.txt
new file mode 100644
index 0000000000..f9b2dedf91
--- /dev/null
+++ b/academic/gri/gri-texinfo-6.7patch.txt
@@ -0,0 +1,10 @@
+diff -Naur gri-2.12.23/doc/gri.texi gri-2.12.23-new/doc/gri.texi
+--- gri-2.12.23/doc/gri.texi	2017-08-24 15:31:52.000000000 +0100
++++ gri-2.12.23-new/doc/gri.texi	2019-10-22 16:13:33.476840964 +0100
+@@ -1,5 +1,5 @@
+ \input texinfo 
+-
++@documentencoding ISO-8859-1
+ @c
+ @comment *** Start of HTML stuff ***
+ @comment # HTML support, via comments in texinfo:
diff --git a/academic/gri/gri.SlackBuild b/academic/gri/gri.SlackBuild
index 7ebaf19929..965946ecd2 100644
--- a/academic/gri/gri.SlackBuild
+++ b/academic/gri/gri.SlackBuild
@@ -2,7 +2,7 @@
 
 # Slackware build script for gri
 
-# Copyright 2018  Rob van Nues
+# Copyright 2018-2019  Rob van Nues
 # All rights reserved.
 #
 # Redistribution and use of this script, with or without modification, is
@@ -69,6 +69,11 @@ find -L . \
  \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
   -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;
 
+#with thanks to Gavin Smith
+patch -p1 < $CWD/gri-texinfo-6.7patch.txt
+#with thanks to Matteo Bernardini
+#patch -p1 < $CWD/texinfo-utf8.patch
+
 aclocal
 autoconf
 automake --add-missing
@@ -81,8 +86,10 @@ CXXFLAGS="$SLKCFLAGS" \
   --docdir=/usr/doc/$PRGNAM-$VERSION \
   --build=$ARCH-slackware-linux
 
-make
-make install DESTDIR=$PKG
+#with thanks to Matteo Bernardini
+#see: https://www.linuxquestions.org/questions/slackware-14/sbo-scripts-not-building-on-current-read-1st-post-pls-4175561999/page142.html#post6049662
+make -j1
+make -j1 install DESTDIR=$PKG
 
 find $PKG -print0 | xargs -0 file | grep -e "executable" -e "shared object" | grep ELF \
   | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true
diff --git a/academic/gri/texinfo-utf8.patch b/academic/gri/texinfo-utf8.patch
new file mode 100644
index 0000000000..b63573de33
--- /dev/null
+++ b/academic/gri/texinfo-utf8.patch
@@ -0,0 +1,12 @@
+diff -Naur gri-2.12.23.orig/doc/gri.texi gri-2.12.23/doc/gri.texi
+--- gri-2.12.23.orig/doc/gri.texi	2017-08-24 16:31:52.000000000 +0200
++++ gri-2.12.23/doc/gri.texi	2019-10-22 15:39:51.666151000 +0200
+@@ -19277,7 +19277,7 @@
+ Thomas Larsen,
+ @cindex Thomas Larsen (contributor)
+ @cindex contributor, Thomas Larsen
+-Alejandro L�pez-Valencia,
++Alejandro Lopez-Valencia,
+ @cindex Alejandro Lopez-Valencia (contributor)
+ @cindex contributor, Alejandro Lopez-Valencia
+ Kawamura Masao,
+\ No newline at end of file