+The time the "make" step takes depends heavily on optimization levels. Large
+amounts of memory (>128MB) will be required by the compiler, also depending
+on optimization. To give you a rough idea of what you have to expect the
+following table may be helpful. It was measured on an Athlon/800MHz with
+"enough" memory:
+
+step | GCC optimization | comment
+ | -O1 | -O2 |
+--------------+---------+---------+----------------------------------------
+make | ~6m | ~8m | shared and static library
+make check | ~8m | ~12m | largely due to compilation
+
+
+COMMON PROBLEMS
+===============
+
+Problems with CLN
+-----------------
+
+You should use at least CLN-1.1, since during the development of GiNaC
+various bugs have been discovered and fixed in earlier versions. Please
+install CLN properly on your system before continuing with GiNaC.
+
+Problems building ginsh
+-----------------------
+
+The most common reason why this doesn't succeed is the absence of GNU
+libreadline and/or the corresponding header files. Depending on what your
+system/distribution is, you will have to install a package called
+libreadline and maybe libreadline-dev. If your system's vendor doesn't
+supply such packages, go to <ftp://ftp.gnu.org/gnu/readline/> and compile
+it yourself. Note that non-GNU versions of libreadline (in particular
+one shipped with Mac OS X) are not supported at the moment.