build.patch

# https://sourceforge.net/p/octave/fuzzy-logic-toolkit/ci/00e05af94b3762d2e051ad28fb436da089160f40/tree/inst/defuzz.m?diff=77eb4af15ee2e6deeb30c94eacb8bd2a782d019d

--- a/inst/defuzz.m
+++ b/inst/defuzz.m
@@ -1,4 +1,4 @@
-## Copyright (C) 2011-2014 L. Markowsky <lmarkov@users.sourceforge.net>
+## Copyright (C) 2011-2018 L. Markowsky <lmarkov@users.sourceforge.net>
 ##
 ## This file is part of the fuzzy-logic-toolkit.
 ##
@@ -162,7 +162,16 @@
 function crisp_x = mom (x, y)
 
   max_y = max (y);
-  y_val = @(y_val) if (y_val == max_y) 1 else 0 endif;
+
+  function y_val = calc_yval(y_val)
+    if (y_val == max_y)
+      y_val = 1;
+    else
+      y_val = 0;
+    endif
+  endfunction
+
+  y_val = @(y_val) calc_yval(y_val);
   max_y_locations = arrayfun (y_val, y);
   crisp_x = sum (x .* max_y_locations) / sum (max_y_locations);
 
@@ -185,7 +194,16 @@
 function crisp_x = som (x, y)
 
   max_y = max (y);
-  y_val = @(y_val) if (y_val == max_y) 1 else (NaN) endif;
+
+  function y_val = calc_yval(y_val)
+    if (y_val == max_y)
+      y_val = 1;
+    else
+      y_val = (NaN);
+    endif
+  endfunction
+
+  y_val = @(y_val) calc_yval(y_val);
   max_y_locations = arrayfun (y_val, y);
   crisp_x = min (x .* max_y_locations);
 
@@ -207,7 +225,16 @@
 function crisp_x = lom (x, y)
 
   max_y = max (y);
-  y_val = @(y_val) if (y_val == max_y) 1 else (NaN) endif;
+
+  function y_val = calc_yval(y_val)
+    if (y_val == max_y)
+      y_val = 1;
+    else
+      y_val = (NaN);
+    endif
+  endfunction
+
+  y_val = @(y_val) calc_yval(y_val);
   max_y_locations = arrayfun (y_val, y);
   crisp_x = max (x .* max_y_locations);
 

PKGBUILD

#
# Maintainer: Clemens Buchacher <drizzd@aon.at>
# Contributor: wangjiezhe <wangjiezhe AT yandex DOT com>
#
# You can use the newpkg script from
# https://github.com/drizzd/octave-forge-archlinux to automatically generate
# new octave-forge PKGBUILDs or update existing ones. Patches welcome.
#

_pack=fuzzy-logic-toolkit
pkgname=octave-$_pack
pkgver=0.4.5
pkgrel=3
pkgdesc="A mostly MATLAB-compatible fuzzy logic toolkit for Octave."
arch=(any)
url="http://octave.sourceforge.net/$_pack/"
license=('GPL3')
groups=('octave-forge')
depends=('octave>=3.2.4')
makedepends=()
optdepends=()
backup=()
options=()
install=$pkgname.install
_archive=$_pack-$pkgver.tar.gz
source=("http://downloads.sourceforge.net/octave/$_archive")
noextract=("$_archive")
md5sums=('9f9e88a7d7c4dd2e3ba6958982af75aa')

_octave_run() {
	octave --no-history --no-init-file --no-window-system -q -f --eval "$*"
}

_install_dir() {
	src=$1
	dst=$2
	mkdir -p "$(dirname "$dst")"
	cp -rT "$src" "$dst"
}

prepare() {
	tar -xf $_archive
        cd fuzzy-logic-toolkit
	patch -Np1 -i ../../build.patch
        cd ..
        rm $_archive
        echo tar -acf $_archive fuzzy-logic-toolkit
        tar -acf $_archive fuzzy-logic-toolkit
}

build() {
	_prefix="$srcdir"/install_prefix
	_archprefix="$srcdir"/install_archprefix
	mkdir -p "$_prefix" "$_archprefix"
	cd "$srcdir"
	_octave_run "$(cat <<-EOF
		pkg local_list octave_packages;
		pkg prefix $_prefix $_archprefix;
		pkg install -verbose -nodeps $_archive;
		EOF
		)"
}

package() {
	prefix=$pkgdir/usr/share/octave/packages
	archprefix=$pkgdir/usr/lib/octave/packages
	_install_dir "$srcdir"/install_prefix "$prefix"
	_install_dir "$srcdir"/install_archprefix "$archprefix"
}