https://gcc.gnu.org/g:90788dd722346560d410fe9a5c2d543811027336
commit r14-9549-g90788dd722346560d410fe9a5c2d543811027336
Author: Jonathan Wakely <jwak...@redhat.com>
Date: Fri Mar 1 11:20:51 2024 +0000
libstdc++: Regenerate <bits/version.h> in maintainer mode
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++.
Diff:
---
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:
diff --git a/libstdc++-v3/include/Makefile.in b/libstdc++-v3/include/Makefile.in
index 5a965c8e03b..9357087acb4 100644
--- a/libstdc++-v3/include/Makefile.in
+++ b/libstdc++-v3/include/Makefile.in
@@ -1954,6 +1954,10 @@ update-version:
cd ${bits_srcdir} && \
autogen version.def
+# Regenerate it automatically in maintainer mode.
+@MAINTAINER_MODE_TRUE@${bits_srcdir}/version.h: ${bits_srcdir}/version.def
${bits_srcdir}/version.tpl
+@MAINTAINER_MODE_TRUE@ $(MAKE) update-version
+
# The real deal.
install-data-local: install-headers
install-headers:
