[Buildroot] [git commit] package/libid3tag: needs autoreconf

Arnout Vandecappelle (Essensium/Mind) arnout at mind.be
Tue Nov 27 22:27:46 UTC 2018

commit: https://git.buildroot.net/buildroot/commit/?id=43274dd3e0daa3de09d32828e63e6608e8db1e5b
branch: https://git.buildroot.net/buildroot/commit/?id=refs/heads/master

libid3tag uses a very old configure script.

When the toolchain lacks C++ and the build machine lacks /lib/cpp, this
old configure script fails because it can't find a C++ preprocessor that
is valid:

    checking for arm-buildroot-linux-uclibcgnueabi-g++... no
    checking whether we are using the GNU C++ compiler... no
    checking whether no accepts -g... no
    checking dependency style of no... none
    checking how to run the C++ preprocessor... /lib/cpp
    configure: error: C++ preprocessor "/lib/cpp" fails sanity check
    See `config.log' for more details.

This is yet another case that was tentatively fixed by bd39d11d2e
(core/infra: fix build on toolchain without C++), further amended by
4cd1ab15886 (core: alternate solution to disable C++).

However, this only works on libtool scripts that are recent enough, and
thus we need to autoreconf to get it.

We also need to patch configure.ac so that it does not fail on the
missing, GNU-specific files: NEWS, AUTHORS, and Changelog.


Signed-off-by: "Yann E. MORIN" <yann.morin.1998 at free.fr>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout at mind.be>
 package/libid3tag/0001-configure-automake-foreign.patch | 16 ++++++++++++++++
 package/libid3tag/libid3tag.mk                          |  5 ++++-
 2 files changed, 20 insertions(+), 1 deletion(-)

diff --git a/package/libid3tag/0001-configure-automake-foreign.patch b/package/libid3tag/0001-configure-automake-foreign.patch
new file mode 100644
index 0000000000..8521d559f2
--- /dev/null
+++ b/package/libid3tag/0001-configure-automake-foreign.patch
@@ -0,0 +1,16 @@
+configure: don't require GNU-specific files when running automake
+Signed-off-by: "Yann E. MORIN" <yann.morin.1998 at free.fr>
+diff -durN libid3tag-0.15.1b.orig/configure.ac libid3tag-0.15.1b/configure.ac
+--- libid3tag-0.15.1b.orig/configure.ac	2004-01-24 00:22:46.000000000 +0100
++++ libid3tag-0.15.1b/configure.ac	2018-11-25 15:31:04.184342212 +0100
+@@ -26,7 +26,7 @@
+ AC_CONFIG_SRCDIR([id3tag.h])
+ AM_CONFIG_HEADER([config.h])
diff --git a/package/libid3tag/libid3tag.mk b/package/libid3tag/libid3tag.mk
index 951ae09c77..402e154ae1 100644
--- a/package/libid3tag/libid3tag.mk
+++ b/package/libid3tag/libid3tag.mk
@@ -10,6 +10,9 @@ LIBID3TAG_LICENSE = GPL-2.0+
+# Force autoreconf to be able to use a more recent libtool script, that
+# is able to properly behave in the face of a missing C++ compiler.
 $(eval $(autotools-package))

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