X-Git-Url: https://www.ginac.de/ginac.git//ginac.git?p=ginac.git;a=blobdiff_plain;f=INSTALL;h=05275655cd99ffea5ce7f7094f64a08183d8dbea;hp=5e300b5e0252fc67a3e59efdc6414e7fa32deccb;hb=493389336664ea6de705921c4393531795d4ecfe;hpb=7d5599da087670e2ce1229789a847acd73fe8e0a
diff --git a/INSTALL b/INSTALL
index 5e300b5e..05275655 100644
--- a/INSTALL
+++ b/INSTALL
@@ -3,8 +3,9 @@ Prerequisites
GiNaC requires the CLN library by Bruno Haible, available at
or .
-You will also need a C++ compiler adhering to the ANSI standard (we used gcc
-for development so if you have a different compiler you are on your own).
+You will also need a good C++ compiler adhering to the ANSI standard (we
+used gcc for development so if you have a different compiler you are on
+your own).
Installation
@@ -19,10 +20,7 @@ As with any autoconfiguring GNU software, installation is as easy as this:
$ make install
Known to work with:
- - Linux/x86, EGCS-1.1.2 or GCC 2-95.
-
-The "make" step takes about 10 minutes, on a 586 DX / 133 MHz / 64 MB or
-about 2 minutes on a P-III /550 MHz / 512 MB.
+ - Linux/x86, EGCS-1.1.2 or GCC 2-95.1/2-95.2
The "configure" script can be given a number of options to enable and
disable various features. For a complete list, type:
@@ -40,6 +38,18 @@ A few of the more important ones:
More detailed installation instructions can be found in the documentation,
in the doc/ directory.
+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
+a P-III/500MHz with "enough" memory:
+
+step: | value of $CXXFLAGS: | comment:
+ | -O0 | -O1 | -O2 |
+--------------+-------+-------+-------+-------------------------------
+make | ~4m | ~6m | ~10m | building shared and static lib
+make check | ~2m | ~2m | ~7m | mostly due to compilation
+
Problems with CLN
=================