[build] Use python3 command in CMake build, not python.

[ginac.git] / INSTALL

diff --git a/INSTALL b/INSTALL
index 75b8446614be0c5ee021b1a65ad475e49dc65643..3a0dc2bb3fc3e8b59a3411dda3d54e5b82b93c34 100644 (file)
--- a/INSTALL
+++ b/INSTALL
@@ -2,7 +2,7 @@ PREREQUISITES
 =============
 
 GiNaC requires the CLN library by Bruno Haible installed on your system.
-It is available from <http://www.ginac.de/CLN/>.
+It is available from <https://www.ginac.de/CLN/>.
 
 You will also need a decent ISO C++-11 compiler. We recommend the C++
 compiler from the GNU compiler collection, GCC >= 4.8. If you have a
@@ -11,8 +11,7 @@ use the same compiler you compiled CLN with because of differing
 name-mangling schemes.
 
 The pkg-config utility is required for configuration, it can be downloaded
-from <http://pkg-config.freedesktop.org/>. Also Python version >= 2.6 is
-required.
+from <http://pkg-config.freedesktop.org/>. Also, Python 3 is required.
 
 To build the GiNaC tutorial and reference manual the doxygen utility
 (it can be downloaded from http://www.stack.nl/~dimitri/doxygen) and
@@ -20,15 +19,15 @@ TeX are necessary.
 
 Known to work with:
  - Linux on x86 and x86_64 using
-   - GCC 4.8, 4.9, 5.1, 5.2, 5.3, and 6.1
-   - Clang 3.5, 3.6, 3.7, 3.8
+   - GCC 4.8, 4.9, 5.x, 6.x, 7.x, 8.x, and 9.x
+   - Clang 3.5, 3.6, 3.7, 3.8, 6.x, 7.x, 8.x, and 9.x
 
 Known not to work with:
  - Clang 2.7 and earlier due to poor C++ support.
  - GCC < 4.6.0 due to missing C++-11 support
 
 If you install from git, you also need GNU autoconf (>=2.59), automake (>=1.8),
-libtool (>= 1.5), python (>= 2.5), bison (>= 2.3), flex (>= 2.5.33) to be installed.
+libtool (>= 1.5), python3, bison (>= 2.3), flex (>= 2.5.33) to be installed.
 
 
 INSTALLATION
@@ -88,7 +87,7 @@ First, download the code:
 Secondly, make sure all required software is installed. This is *really*
 important step. If some package is missing, the `configure' script might
 be misgenerated, see e.g. this discussion:
-<http://www.ginac.de/pipermail/ginac-list/2007-November/001263.html>
+<https://www.ginac.de/pipermail/ginac-list/2007-November/001263.html>
 
 Finally, run