DOC: install: update gcc version requirements
It turns out that gcc-3.4 doesn't build anymore (and it has probably been
the case since 2.4 or so). gcc-4.2 does build fine though, let's mark it
as the oldest supported one. Now that gcc-12 works, also update the most
recently known-to-work version.
diff --git a/INSTALL b/INSTALL
index 696cc0f..55033cb 100644
--- a/INSTALL
+++ b/INSTALL
@@ -101,7 +101,7 @@
may want to retry with "gmake" which is the name commonly used for GNU make
on BSD systems.
- - GCC >= 3.4 (up to 11 tested). Older versions can be made to work with a
+ - GCC >= 4.2 (up to 12 tested). Older versions can be made to work with a
few minor adaptations if really needed. Newer versions may sometimes break
due to compiler regressions or behaviour changes. The version shipped with
your operating system is very likely to work with no trouble. Clang >= 3.0