add global Makefile

src/Makefile uses now 'find' for looking for *.cpp files
and we don't need Makefile.o.dep anymore

src/Makefile

@@ -1,36 +1,45 @@
-include Makefile.o.dep
+sourcefiles:=$(shell find . -name "*.cpp")
+objfiles:=$(patsubst %.cpp,%.o,$(sourcefiles))
 
-libname=morm.a
 
-ifndef GLOBAL_WORKING_DIR
-GLOBAL_WORKING_DIR := $(shell pwd)/../..
+
+ifndef CXX
+CXX = g++
 endif
 
-current_path := $(shell pwd)
-global_relative_working_dir := $(shell relative_path $(current_path) $(GLOBAL_WORKING_DIR))
+ifndef CXXFLAGS
+CXXFLAGS = -Wall -pedantic -O2 -std=c++20 -I../../pikotools/src -I/usr/local/include
+endif
 
+ifndef AR
+AR = ar
+endif
+
+
+
+
+libname = morm.a
 
 
 all: $(libname)
 
-$(libname): $(o)
-	$(AR) rcs $(libname) $(o)
 
+$(libname): $(objfiles)
+	$(AR) rcs $(libname) $(objfiles)
 
 
 %.o: %.cpp
-	$(CXX) -c $(CXXFLAGS) -I$(GLOBAL_WORKING_DIR)/pikotools $<
-
-
-depend:
-	makedepend -Y. -I$(global_relative_working_dir)/pikotools -f- *.cpp > Makefile.dep
-	echo -n "o = " > Makefile.o.dep
-	ls -1 *.cpp | xargs -I foo echo -n foo " " | sed -E "s/([^\.]*)\.cpp[ ]/\1\.o/g" >> Makefile.o.dep
+	$(CXX) -c $(CXXFLAGS) -o $@ $<
 
 
 clean:
-	rm -f *.o
+	rm -f $(objfiles)
 	rm -f $(libname)
 
 
-include Makefile.dep
+depend:
+	makedepend -Y. -I../../pikotools/src -f- $(sourcefiles) > Makefile.dep
+
+
+-include Makefile.dep
+