Update README to document minimum tool versions
Fixes #4379.
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
diff --git a/README.md b/README.md
index 3f41a0d..78d3c30 100644
--- a/README.md
+++ b/README.md
@@ -26,7 +26,7 @@
To generate a local copy of the library documentation in HTML format, tailored to your compile-time configuration:
-1. Make sure that [Doxygen](http://www.doxygen.nl/) is installed. We use version 1.8.11 but slightly older or more recent versions should work.
+1. Make sure that [Doxygen](http://www.doxygen.nl/) is installed.
1. Run `make apidoc`.
1. Browse `apidoc/index.html` or `apidoc/modules.html`.
@@ -39,7 +39,7 @@
- GNU Make
- CMake
-- Microsoft Visual Studio (Microsoft Visual Studio 2013 or later)
+- Microsoft Visual Studio
The main systems used for development are CMake and GNU Make. Those systems are always complete and up-to-date. The others should reflect all changes present in the CMake and Make build system, although features may not be ported there automatically.
@@ -49,10 +49,13 @@
You need the following tools to build the library with the provided makefiles:
-* GNU Make or a build tool that CMake supports.
-* A C99 toolchain (compiler, linker, archiver). We actively test with GCC 5.4, Clang 3.8, IAR8 and Visual Studio 2013. More recent versions should work. Slightly older versions may work.
-* Python 3 to generate the test code, and to generate sample programs in the development branch.
+* GNU Make 3.82 or a build tool that CMake supports.
+* A C99 toolchain (compiler, linker, archiver). We actively test with GCC 5.4, Clang 3.8, IAR 8 and Visual Studio 2013. More recent versions should work. Slightly older versions may work.
+* Python 3.6 to generate the test code, and to generate sample programs in the development branch.
* Perl to run the tests, and to generate some source files in the development branch.
+* CMake 3.10.2 or later (if using CMake).
+* Microsoft Visual Studio 2013 or later (if using Visual Studio).
+* Doxygen 1.8.11 or later (if building the documentation; slightly older versions should work).
### Generated source files in the development branch
