File unrecognized-options.patch of Package keeperrl

diff -Nur keeperrl-alpha28/Makefile keeperrl-alpha28-patched/Makefile
--- keeperrl-alpha28/Makefile	2019-06-25 08:09:52.000000000 +0200
+++ keeperrl-alpha28-patched/Makefile	2019-09-04 21:56:32.690777508 +0200
@@ -4,7 +4,7 @@
 RPATH = .
 endif
 
-CFLAGS = -Wall -std=c++1y -Wno-sign-compare -Wno-unused-variable -Wno-shift-count-overflow -Wno-tautological-constant-out-of-range-compare -Wno-mismatched-tags -ftemplate-depth=512 -Wno-implicit-conversion-floating-point-to-bool -Wno-string-conversion -Wno-bool-conversion
+CFLAGS = -Wall -std=c++1y -Wno-sign-compare -Wno-unused-variable -Wno-shift-count-overflow -ftemplate-depth=512
 
 ifndef GCC
 GCC = g++