From mboxrd@z Thu Jan 1 00:00:00 1970 From: Arnout Vandecappelle Date: Sat, 12 Mar 2016 10:27:40 +0100 Subject: [Buildroot] [PATCH 1/2] gcc: preserve CXXFLAGS_FOR_TARGET In-Reply-To: <1457657122-7283-2-git-send-email-jcmvbkbc@gmail.com> References: <1457657122-7283-1-git-send-email-jcmvbkbc@gmail.com> <1457657122-7283-2-git-send-email-jcmvbkbc@gmail.com> Message-ID: <56E3E10C.7080405@mind.be> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: buildroot@busybox.net On 03/11/16 01:45, Max Filippov wrote: > gcc-4.8.x and gcc-4.9.x don't propagate CXXFLAGS_FOR_TARGET to CXXFLAGS It would have been good to mention explicitly that it's not done for deprecated gcc-4.7.x and that it's already fixed in gcc-5.x. > for libstdc++ build. As a result libstdc++ is built without > TARGET_CFLAGS and may fail to link with applications using it, see e.g. > > http://autobuild.buildroot.net/results/81a3bca5cbcf789c7ce1aa221a6a4154dd7c3917/ > > Instead of passing TARGET_ABI or TARGET_CFLAGS for libstdc++ in > --enable-cxx-flags parameter backport the patch that fixes propagation > of CXXFLAGS_FOR_TARGET to CXXFLAGS. > > Signed-off-by: Max Filippov Reviewed-by: Arnout Vandecappelle (Essensium/Mind) > --- > package/gcc/4.8.5/130-pr43538.patch | 25 +++++++++++++++++++++++++ > package/gcc/4.9.3/130-pr43538.patch | 25 +++++++++++++++++++++++++ > 2 files changed, 50 insertions(+) > create mode 100644 package/gcc/4.8.5/130-pr43538.patch > create mode 100644 package/gcc/4.9.3/130-pr43538.patch > > diff --git a/package/gcc/4.8.5/130-pr43538.patch b/package/gcc/4.8.5/130-pr43538.patch > new file mode 100644 > index 0000000..19e57bb > --- /dev/null > +++ b/package/gcc/4.8.5/130-pr43538.patch > @@ -0,0 +1,25 @@ > +From c037df1be41f8daf4d581d7ffa4ec8cfa640bccf Mon Sep 17 00:00:00 2001 > +From: glisse > +Date: Fri, 25 Apr 2014 08:03:08 +0000 > +Subject: [PATCH] 2014-04-25 Marc Glisse > + > + PR target/43538 > + * mt-gnu: Don't reset CXXFLAGS_FOR_TARGET. > + > + > +git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk at 209784 138bc75d-0d04-0410-961f-82ee72b054a4 > +Signed-off-by: Max Filippov > +--- > + config/mt-gnu | 2 +- > + 1 file changed, 1 insertion(+), 1 deletion(-) > + > +diff --git a/config/mt-gnu b/config/mt-gnu > +index 15bf417..5c696f5 100644 > +--- a/config/mt-gnu > ++++ b/config/mt-gnu > +@@ -1 +1 @@ > +-CXXFLAGS_FOR_TARGET = $(CXXFLAGS) -D_GNU_SOURCE > ++CXXFLAGS_FOR_TARGET += -D_GNU_SOURCE > +-- > +2.1.4 > + > diff --git a/package/gcc/4.9.3/130-pr43538.patch b/package/gcc/4.9.3/130-pr43538.patch > new file mode 100644 > index 0000000..19e57bb > --- /dev/null > +++ b/package/gcc/4.9.3/130-pr43538.patch > @@ -0,0 +1,25 @@ > +From c037df1be41f8daf4d581d7ffa4ec8cfa640bccf Mon Sep 17 00:00:00 2001 > +From: glisse > +Date: Fri, 25 Apr 2014 08:03:08 +0000 > +Subject: [PATCH] 2014-04-25 Marc Glisse > + > + PR target/43538 > + * mt-gnu: Don't reset CXXFLAGS_FOR_TARGET. > + > + > +git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk at 209784 138bc75d-0d04-0410-961f-82ee72b054a4 > +Signed-off-by: Max Filippov > +--- > + config/mt-gnu | 2 +- > + 1 file changed, 1 insertion(+), 1 deletion(-) > + > +diff --git a/config/mt-gnu b/config/mt-gnu > +index 15bf417..5c696f5 100644 > +--- a/config/mt-gnu > ++++ b/config/mt-gnu > +@@ -1 +1 @@ > +-CXXFLAGS_FOR_TARGET = $(CXXFLAGS) -D_GNU_SOURCE > ++CXXFLAGS_FOR_TARGET += -D_GNU_SOURCE > +-- > +2.1.4 > + > -- Arnout Vandecappelle arnout at mind be Senior Embedded Software Architect +32-16-286500 Essensium/Mind http://www.mind.be G.Geenslaan 9, 3001 Leuven, Belgium BE 872 984 063 RPR Leuven LinkedIn profile: http://www.linkedin.com/in/arnoutvandecappelle GPG fingerprint: 7493 020B C7E3 8618 8DEC 222C 82EB F404 F9AC 0DDF