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| -rw-r--r-- | docs/GCCFEBuildInstrs.html | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/docs/GCCFEBuildInstrs.html b/docs/GCCFEBuildInstrs.html index 289bda3..0c67534 100644 --- a/docs/GCCFEBuildInstrs.html +++ b/docs/GCCFEBuildInstrs.html @@ -92,12 +92,13 @@ top-level <tt>README.LLVM</tt> file, adding ",ada" to EXTRALANGS, for example: systems without some work.</p></li> <li><p>The build requires having a compiler that supports Ada, C and C++. The Ada front-end is written in Ada so an Ada compiler is needed to - build it. What is more, the Ada compiler must not be more recent - than what it is trying to compile, otherwise the build will fail. - This rules out gcc-4.3 (but not gcc-4.2) and also the - <a href="http://libre.adacore.com/">2007 GNAT GPL Edition</a>. - The LLVM parts of llvm-gcc are written in C++ so a C++ - compiler is needed to build them. The rest of gcc is written in C. + build it. Appropriate Ada compilers are gcc-4.2 (or earlier) or the + <a href="http://libre.adacore.com/">2006 GNAT GPL Edition</a> + (or earlier). As a general rule, the Ada compiler used for the + build must not be more recent than the Ada compiler it is building. + This is why the build fails with gcc-4.3 and the 2007 GNAT GPL Edition. + The LLVM parts of llvm-gcc are written in C++ so a C++ compiler is + needed to build them. The rest of gcc is written in C. Some linux distributions provide a version of gcc that supports all three languages (the Ada part often comes as an add-on package to the rest of gcc). Otherwise it is possible to combine two versions |