gnu: Add fuzzylite.

* gnu/packages/games.scm (fuzzylite): New variable.
* gnu/packages/patches/fuzzylite-relative-path-in-tests.patch: New file.
* gnu/packages/patches/fuzzylite-use-catch2.patch: New file.
* gnu/packages/patches/fuzzylite-soften-float-equality.patch: New file.
* gnu/local.mk (dist_patch_DATA): Register them here.

Signed-off-by: Liliana Marie Prikler <liliana.prikler@gmail.com>

3 files changed, 229 insertions, 0 deletions

diff --git a/gnu/packages/patches/fuzzylite-relative-path-in-tests.patch b/gnu/packages/patches/fuzzylite-relative-path-in-tests.patch
new file mode 100644
index 0000000000..1a03238246
--- /dev/null
+++ b/gnu/packages/patches/fuzzylite-relative-path-in-tests.patch
@@ -0,0 +1,15 @@
+Workaround https://github.com/fuzzylite/fuzzylite/issues/85
+
+diff --git a/fuzzylite/test/BenchmarkTest.cpp b/fuzzylite/test/BenchmarkTest.cpp
+index f868ec29..464d394d 100644
+--- a/fuzzylite/test/BenchmarkTest.cpp
++++ b/fuzzylite/test/BenchmarkTest.cpp
+@@ -30,7 +30,7 @@ namespace fl {
+     }
+ 
+     TEST_CASE("Benchmarks from FLD files", "[benchmark][fld]") {
+-        std::string path = "../../examples/";
++        std::string path = "../examples/";
+         typedef std::pair<std::string, int > Example;
+         std::vector<Example> examples;
+         examples.push_back(Example("mamdani/AllTerms", int(1e4)));
diff --git a/gnu/packages/patches/fuzzylite-soften-float-equality.patch b/gnu/packages/patches/fuzzylite-soften-float-equality.patch
new file mode 100644
index 0000000000..47403605dd
--- /dev/null
+++ b/gnu/packages/patches/fuzzylite-soften-float-equality.patch
@@ -0,0 +1,30 @@
+Origin: https://salsa.debian.org/debian/fuzzylite/-/blob/debian/6.0+dfsg-6/debian/patches/when-testing-large-float-numbers-for-equ.patch
+From: Johannes 'josch' Schauer <josch@debian.org>
+Date: Sun, 3 Feb 2019 10:33:22 +0100
+X-Dgit-Generated: 6.0+dfsg-2 80960ae38da9db032dfbfec6405398653e8205ff
+Subject: when testing large float numbers for equality, use a larger epsilon
+
+
+---
+
+--- fuzzylite-6.0+dfsg.orig/fuzzylite/test/BenchmarkTest.cpp
++++ fuzzylite-6.0+dfsg/fuzzylite/test/BenchmarkTest.cpp
+@@ -96,7 +96,17 @@ namespace fl {
+         CHECK(Op::isEq(1.0, Benchmark::convert(1000.0, Benchmark::MilliSeconds, Benchmark::Seconds)));
+         FL_LOG(Benchmark::convert(1000.0, Benchmark::MilliSeconds, Benchmark::Seconds));
+ 
+-        CHECK(Op::isEq(35e9, Benchmark::convert(35, Benchmark::Seconds, Benchmark::NanoSeconds)));
++        scalar eps =
++#ifndef __i386__
++            fuzzylite::macheps();
++#else
++            // on i386, due to the 80bit x87 register, double floating point
++            // numbers are handled differently and thus the difference between
++            // 35e9 and the result of Benchmark::convert() will be 2.179e-6,
++            // which is greater than the default epsilon of 1e-6.
++            1e-5;
++#endif
++        CHECK(Op::isEq(35e9, Benchmark::convert(35, Benchmark::Seconds, Benchmark::NanoSeconds), eps));
+         CHECK(Op::isEq(35, Benchmark::convert(35e9, Benchmark::NanoSeconds, Benchmark::Seconds)));
+     }
+ 
diff --git a/gnu/packages/patches/fuzzylite-use-catch2.patch b/gnu/packages/patches/fuzzylite-use-catch2.patch
new file mode 100644
index 0000000000..e4aa13a98b
--- /dev/null
+++ b/gnu/packages/patches/fuzzylite-use-catch2.patch
@@ -0,0 +1,184 @@
+Origin: https://salsa.debian.org/debian/fuzzylite/-/blob/debian/6.0+dfsg-6/debian/patches/fix-tests2.patch
+From: Ferdinand Thiessen <rpm@fthiessen.de>
+Date: Mon, 31 Jan 2022 16:06:19 GMT
+Subject: Replace Catch with Catch2 and require C++11 for tests
+Origin: vendor, https://github.com/fuzzylite/fuzzylite/issues/94
+Bug-Debian: http://bugs.debian.org/1017155
+
+--- a/fuzzylite/CMakeLists.txt
++++ b/fuzzylite/CMakeLists.txt
+@@ -194,7 +194,9 @@ if(FL_BUILD_BINARY)
+ endif(FL_BUILD_BINARY)
+ 
+ if(FL_BUILD_TESTS)
++    find_package(Catch2)
+     add_executable(fl-test ${fl-headers} ${fl-tests})
++    target_link_libraries(fl-test Catch2::Catch2)
+     set_target_properties(fl-test PROPERTIES OUTPUT_NAME fuzzylite-tests)
+     set_target_properties(fl-test PROPERTIES OUTPUT_NAME fuzzylite-tests IMPORT_PREFIX tmp-) #To prevent LNK1149 in Windows
+     set_target_properties(fl-test PROPERTIES DEBUG_POSTFIX -debug)
+--- a/fuzzylite/test/activation/ThresholdTest.cpp
++++ b/fuzzylite/test/activation/ThresholdTest.cpp
+@@ -14,7 +14,7 @@
+  fuzzylite is a registered trademark of FuzzyLite Limited.
+  */
+ 
+-#include "test/catch.hpp"
++#include "catch2/catch.hpp"
+ #include "fl/Headers.h"
+ 
+ namespace fl {
+--- a/fuzzylite/test/BenchmarkTest.cpp
++++ b/fuzzylite/test/BenchmarkTest.cpp
+@@ -16,7 +16,7 @@
+ 
+ #include "fl/Benchmark.h"
+ 
+-#include "test/catch.hpp"
++#include "catch2/catch.hpp"
+ #include "fl/Headers.h"
+ 
+ #include <vector>
+--- a/fuzzylite/test/hedge/HedgeFunctionTest.cpp
++++ b/fuzzylite/test/hedge/HedgeFunctionTest.cpp
+@@ -14,7 +14,7 @@
+  fuzzylite is a registered trademark of FuzzyLite Limited.
+  */
+ 
+-#include "test/catch.hpp"
++#include "catch2/catch.hpp"
+ #include "fl/Headers.h"
+ 
+ namespace fl {
+--- a/fuzzylite/test/imex/FldExporterTest.cpp
++++ b/fuzzylite/test/imex/FldExporterTest.cpp
+@@ -14,7 +14,7 @@
+  fuzzylite is a registered trademark of FuzzyLite Limited.
+  */
+ 
+-#include "test/catch.hpp"
++#include "catch2/catch.hpp"
+ #include "fl/Headers.h"
+ 
+ namespace fl {
+--- a/fuzzylite/test/imex/FllImporterTest.cpp
++++ b/fuzzylite/test/imex/FllImporterTest.cpp
+@@ -14,7 +14,7 @@
+  fuzzylite is a registered trademark of FuzzyLite Limited.
+  */
+ 
+-#include "test/catch.hpp"
++#include "catch2/catch.hpp"
+ #include "fl/Headers.h"
+ 
+ namespace fl {
+--- a/fuzzylite/test/imex/RScriptExporterTest.cpp
++++ b/fuzzylite/test/imex/RScriptExporterTest.cpp
+@@ -14,7 +14,7 @@
+  fuzzylite is a registered trademark of FuzzyLite Limited.
+  */
+ 
+-#include "test/catch.hpp"
++#include "catch2/catch.hpp"
+ #include "fl/Headers.h"
+ #include <fstream>
+ 
+--- a/fuzzylite/test/MainTest.cpp
++++ b/fuzzylite/test/MainTest.cpp
+@@ -16,7 +16,7 @@
+  
+ #define CATCH_CONFIG_RUNNER
+ 
+-#include "test/catch.hpp"
++#include "catch2/catch.hpp"
+ 
+ #include "fl/Headers.h"
+ 
+--- a/fuzzylite/test/norm/NormFunctionTest.cpp
++++ b/fuzzylite/test/norm/NormFunctionTest.cpp
+@@ -14,7 +14,7 @@
+  fuzzylite is a registered trademark of FuzzyLite Limited.
+  */
+ 
+-#include "test/catch.hpp"
++#include "catch2/catch.hpp"
+ #include "fl/Headers.h"
+ 
+ namespace fl {
+--- a/fuzzylite/test/QuickTest.cpp
++++ b/fuzzylite/test/QuickTest.cpp
+@@ -14,7 +14,7 @@
+  fuzzylite is a registered trademark of FuzzyLite Limited.
+  */
+ 
+-#include "test/catch.hpp"
++#include "catch2/catch.hpp"
+ #include "fl/Headers.h"
+ 
+ namespace fl {
+--- a/fuzzylite/test/term/AggregatedTest.cpp
++++ b/fuzzylite/test/term/AggregatedTest.cpp
+@@ -14,7 +14,7 @@
+  fuzzylite is a registered trademark of FuzzyLite Limited.
+  */
+ 
+-#include "test/catch.hpp"
++#include "catch2/catch.hpp"
+ #include "fl/Headers.h"
+ 
+ namespace fl {
+--- a/fuzzylite/test/term/DiscreteTest.cpp
++++ b/fuzzylite/test/term/DiscreteTest.cpp
+@@ -14,7 +14,7 @@
+  fuzzylite is a registered trademark of FuzzyLite Limited.
+  */
+ 
+-#include "test/catch.hpp"
++#include "catch2/catch.hpp"
+ #include "fl/Headers.h"
+ 
+ namespace fl {
+--- a/fuzzylite/test/term/FunctionTest.cpp
++++ b/fuzzylite/test/term/FunctionTest.cpp
+@@ -14,7 +14,7 @@
+  fuzzylite is a registered trademark of FuzzyLite Limited.
+  */
+ 
+-#include "test/catch.hpp"
++#include "catch2/catch.hpp"
+ #include "fl/Headers.h"
+ 
+ namespace fl {
+--- a/fuzzylite/test/term/TrapezoidTest.cpp
++++ b/fuzzylite/test/term/TrapezoidTest.cpp
+@@ -14,7 +14,7 @@
+  fuzzylite is a registered trademark of FuzzyLite Limited.
+  */
+ 
+-#include "test/catch.hpp"
++#include "catch2/catch.hpp"
+ #include "fl/Headers.h"
+ 
+ namespace fl {
+--- a/fuzzylite/test/term/TriangleTest.cpp
++++ b/fuzzylite/test/term/TriangleTest.cpp
+@@ -14,7 +14,7 @@
+  fuzzylite is a registered trademark of FuzzyLite Limited.
+  */
+ 
+-#include "test/catch.hpp"
++#include "catch2/catch.hpp"
+ #include "fl/Headers.h"
+ 
+ namespace fl {
+--- a/fuzzylite/test/variable/VariableTest.cpp
++++ b/fuzzylite/test/variable/VariableTest.cpp
+@@ -14,7 +14,7 @@
+  fuzzylite is a registered trademark of FuzzyLite Limited.
+  */
+ 
+-#include "test/catch.hpp"
++#include "catch2/catch.hpp"
+ #include "fl/Headers.h"
+ 
+ #include <algorithm>    // std::random_shuffle