gentoo-overlay/games-simulation/openttd/files/openttd-1.3.3-cflags.patch

--- config.lib.orig
+++ config.lib
@@ -1426,26 +1426,16 @@
 			CFLAGS="-I/gg/os-include -noixemul -fstrict-aliasing -fexpensive-optimizations -mcpu=604 -fno-inline -mstring -mmultiple $CFLAGS"
 			LDFLAGS="$LDFLAGS -noixemul"
 		fi
-
-		CFLAGS="-O2 -fomit-frame-pointer $CFLAGS"
 	else
 		OBJS_SUBDIR="debug"
 
 		# Each debug level reduces the optimization by a bit
 		if [ $enable_debug -ge 1 ]; then
-			CFLAGS="$CFLAGS -g -D_DEBUG"
+			CFLAGS="-D_DEBUG $CFLAGS"
 			if [ "$os" = "PSP" ]; then
 				CFLAGS="$CFLAGS -G0"
 			fi
 		fi
-		if [ $enable_debug -ge 2 ]; then
-			CFLAGS="$CFLAGS -fno-inline"
-		fi
-		if [ $enable_debug -ge 3 ]; then
-			CFLAGS="$CFLAGS -O0"
-		else
-			CFLAGS="$CFLAGS -O2"
-		fi
 	fi
 
 	if [ $enable_debug -le 2 ]; then
@@ -1466,11 +1456,6 @@
 		CFLAGS="$CFLAGS -fno-expensive-optimizations"
 	fi
 
-	if [ "$enable_profiling" != "0" ]; then
-		CFLAGS="$CFLAGS -p"
-		LDFLAGS="$LDFLAGS -pg"
-	fi
-
 	if [ "$with_threads" = "0" ]; then
 		CFLAGS="$CFLAGS -DNO_THREADS"
 	fi