enhanced the documentation

.gitignore

@@ -2,5 +2,5 @@
 *.o
 
 tbb
-
+gmon.out
 dummy-file

Makefile

@@ -1,9 +1,11 @@
 
 #############################################
 #	making the bubulles library
-#	maybe must be run with gmake
+# maybe must be run with gmake on FreeBSD
 #############################################
 
+CC = gcc
+
 OPT = -Wall -g -DDEBUG_LEVEL=1 -DMUST_ABORT
 CC = gcc
 

README.txt

@@ -7,6 +7,8 @@
 
 	* This kludge was mainly build on FreeBSD, so ymmv.
 	* But you have to use GNU make, iirc...
+	* Looking at the Makefile is a good idea.
+