Tested x86_64-linux. Pushed to trunk. I've taken the liberty of assuming that the change to gcc/doc/install.texi is sufficiently "obviously true" to not require separate approval.
-- >8 -- This is a generated header but regenerating it requires the manual step of running 'make -C include update-version' in the libstdc++ build dir. Make it regenerate automatically when --enable-maintainer-mode is used. libstdc++-v3/ChangeLog: * include/Makefile.am [MAINTAINER_MODE]: Add target to automatically update <bits/version.h>. * include/Makefile.in: Regenerate. gcc/ChangeLog: * doc/install.texi (Prerequisites): Document use of autogen for libstdc++. --- gcc/doc/install.texi | 2 ++ libstdc++-v3/include/Makefile.am | 6 ++++++ libstdc++-v3/include/Makefile.in | 4 ++++ 3 files changed, 12 insertions(+) diff --git a/gcc/doc/install.texi b/gcc/doc/install.texi index e3650e0c4f4..014ca25aa62 100644 --- a/gcc/doc/install.texi +++ b/gcc/doc/install.texi @@ -545,6 +545,8 @@ Necessary to run @samp{make check} for @file{fixinc}. Necessary to regenerate the top level @file{Makefile.in} file from @file{Makefile.tpl} and @file{Makefile.def}. +Necessary to regenerate the @file{bits/version.h} header for libstdc++. + @item Flex version 2.5.4 (or later) Necessary when modifying @file{*.l} files. diff --git a/libstdc++-v3/include/Makefile.am b/libstdc++-v3/include/Makefile.am index 64152351ed0..cb902de36ae 100644 --- a/libstdc++-v3/include/Makefile.am +++ b/libstdc++-v3/include/Makefile.am @@ -1480,6 +1480,12 @@ update-version: cd ${bits_srcdir} && \ autogen version.def +if MAINTAINER_MODE +# Regenerate it automatically in maintainer mode. +${bits_srcdir}/version.h: ${bits_srcdir}/version.def ${bits_srcdir}/version.tpl + $(MAKE) update-version +endif + # The real deal. install-data-local: install-headers install-headers: