Gdmd compiling error

[Orkhan via Digitalmars-d-learn]

Hello. I need your help !

I am struggling to compile and install ca Xcom server files which 
is using gdmd .
It is in linux system , and when I type make command it returns 
error like:
/bin/sh: 1: gdmd: not found
Makefile:35: recipe for target 'protocol-daemon' failed
make: ***[protocol-daemon] Error 127

I am in linux Ubuntu. The Makefile file is like that :

DFLAGS_DEBUG=-debug=2 -g -Isrc
DFLAGS_DEBUG1=-debug=1 -g -Isrc
DFLAGS=-O -inline -Isrc

PROTOCOL_SRC=src/misc_util.d src/socket_base.d 
src/xcomm_sockets.d src/msgserver_core.d src/char_outbuffer.d 
src/logging.d src/xml_util.d src/plugins.d src/xcomm_protocol/*.d 
src/stork/*.d src/stork/*/*.d
PROTOCOL_LIBS=-fPIC -q,-rdynamic -L-ldl
PROTOCOL_OUTPUT=./xcomm
PROTOCOL_FLAGS=-c xcomm.conf

PLUGIN_LIBS=-fPIC -q,-rdynamic,-shared

defaulttarget: protocol-daemon plugins-opt
all: protocol-daemon plugins-opt
distclean: clean

protocol:
	gdmd $(DFLAGS_DEBUG) -op -of$(PROTOCOL_OUTPUT) $(PROTOCOL_SRC) 
$(PROTOCOL_LIBS)
	find . -name "*.o" -print0 | xargs -0 rm -f

protocol-debug1:
	gdmd $(DFLAGS_DEBUG1) -op -of$(PROTOCOL_OUTPUT) $(PROTOCOL_SRC) 
$(PROTOCOL_LIBS)
	find . -name "*.o" -print0 | xargs -0 rm -f

protocol-test: protocol plugins
	$(PROTOCOL_OUTPUT) $(PROTOCOL_FLAGS)

protocol-opt:
	gdmd $(DFLAGS) -op -of$(PROTOCOL_OUTPUT) $(PROTOCOL_SRC) 
$(PROTOCOL_LIBS)
	find . -name "*.o" -print0 | xargs -0 rm -f

protocol-opt-test: protocol-opt plugins-opt
	$(PROTOCOL_OUTPUT) $(PROTOCOL_FLAGS)

protocol-daemon:
	gdmd $(DFLAGS) -version=daemon -op -of$(PROTOCOL_OUTPUT) 
$(PROTOCOL_SRC) $(PROTOCOL_LIBS)
	find . -name "*.o" -print0 | xargs -0 rm -f

daemon-debug:
	gdmd $(DFLAGS_DEBUG) -version=daemon -op -of$(PROTOCOL_OUTPUT) 
$(PROTOCOL_SRC) $(PROTOCOL_LIBS)
	find . -name "*.o" -print0 | xargs -0 rm -f

protocol-debug: protocol plugins
	find . -name "*.o" -print0 | xargs -0 rm -f
	gdb --args $(PROTOCOL_OUTPUT) $(PROTOCOL_FLAGS)

plugins:
	gdmd $(DFLAGS_DEBUG) -op -ofplugins/random.so 
src/plugins/random.d $(PLUGIN_LIBS)
	gdmd $(DFLAGS_DEBUG) -op -ofplugins/game_sets.so 
src/plugins/game_sets.d $(PLUGIN_LIBS)

plugins-opt:
	gdmd $(DFLAGS) -op -ofplugins/random.so src/plugins/random.d 
$(PLUGIN_LIBS)
	gdmd $(DFLAGS) -op -ofplugins/game_sets.so 
src/plugins/game_sets.d $(PLUGIN_LIBS)

clean:
	find . -name "*.o" -print0 | xargs -0 rm -f
	rm -f *.log
	rm -f plugins/*.so
	rm -f src/test_clients/old_n_crufty
	rm -f src/test_clients/scripted
	rm -f src/test_clients/spammer
	rm -f src/test_clients/spammer2
	rm -f $(PROTOCOL_OUTPUT)

backup: distclean
	@if [ ! -e dist ]; then mkdir dist; fi
	tar c . --exclude=CVS --exclude=.svn --exclude=dist | bzip2 -9 > 
dist/xcomm-backup_`date +"%Y-%m-%d_%H%M"`.tar.bz2

# Create a release tarball.
dist: distclean
	@if [ "$(DISTVER)" = "" ]; then echo DISTVER not set - please 
set it to 1.0 or similar.; echo; exit 1; fi
	@if [ ! -e dist ]; then mkdir dist; fi
	tar c . --exclude=CVS --exclude=.svn --exclude=dist 
--exclude=debug.conf | bzip2 -9 > dist/xcomm-$(DISTVER).tar.bz2

.PHONY: protocol protocol-test protocol-opt protocol-opt-test 
protocol-daemon protocol-debug plugins plugins-opt clean dist 
distclean backup all defaulttarget
.NOTPARALLEL: