Compile Crafty Chess on Mac OSX

CraftyChess.txt

Compiling crafty chess on MacOS, you get the following error:
-------------------------------------------------------------
~/apps/crafty/crafty-23.4:$ make darwin
/Applications/Xcode.app/Contents/Developer/usr/bin/make target=FreeBSD \
		CC=gcc CXX=g++ \
		CFLAGS='-Wall -pipe -O3' \
		CXFLAGS='-Wall -pipe -O3' \
		LDFLAGS= \
		LIBS='-lstdc++' \
		opt='' \
		crafty-make
gcc -Wall -pipe -O3  -DFreeBSD -c crafty.c
In file included from crafty.c:13:
In file included from ./search.c:1:
./chess.h:28:12: fatal error: 'malloc.h' file not found
#  include <malloc.h>
           ^
1 error generated.
make[2]: *** [crafty.o] Error 1
make[1]: *** [crafty-make] Error 2
make: *** [darwin] Error 2
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To fix the problem, you need to:
sudo cp /usr/include/malloc/malloc.h /usr/include/

Then crafty will compile!

On OSX 10.11.1 (El Capitan), you cannot write to /usr/include by default, even when using sudo. So instead I did that and it worked:

cp /usr/include/malloc/malloc.h /usr/local/include/