{"id":2227917,"url":"http://patchwork.ozlabs.org/api/patches/2227917/?format=json","web_url":"http://patchwork.ozlabs.org/project/buildroot/patch/20260424132326.825570-5-jeanmichel.hautbois@yoseli.org/","project":{"id":27,"url":"http://patchwork.ozlabs.org/api/projects/27/?format=json","name":"Buildroot development","link_name":"buildroot","list_id":"buildroot.buildroot.org","list_email":"buildroot@buildroot.org","web_url":"","scm_url":"","webscm_url":"","list_archive_url":"","list_archive_url_format":"","commit_url_format":""},"msgid":"<20260424132326.825570-5-jeanmichel.hautbois@yoseli.org>","list_archive_url":null,"date":"2026-04-24T13:23:19","name":"[04/11] package/gmp: disable C++ bindings on m68k ColdFire","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"54c145f16e20862686bdd738fee0312409630014","submitter":{"id":86730,"url":"http://patchwork.ozlabs.org/api/people/86730/?format=json","name":"Jean-Michel Hautbois","email":"jeanmichel.hautbois@yoseli.org"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/buildroot/patch/20260424132326.825570-5-jeanmichel.hautbois@yoseli.org/mbox/","series":[{"id":501366,"url":"http://patchwork.ozlabs.org/api/series/501366/?format=json","web_url":"http://patchwork.ozlabs.org/project/buildroot/list/?series=501366","date":"2026-04-24T13:23:15","name":"Add ColdFire MCF5441x (m68k) support","version":1,"mbox":"http://patchwork.ozlabs.org/series/501366/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2227917/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2227917/checks/","tags":{},"related":[],"headers":{"Return-Path":"","X-Original-To":["incoming-buildroot@patchwork.ozlabs.org","buildroot@buildroot.org"],"Delivered-To":["patchwork-incoming-buildroot@legolas.ozlabs.org","buildroot@buildroot.org"],"Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=buildroot.org header.i=@buildroot.org\n header.a=rsa-sha256 header.s=default header.b=e60+8+9q;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=buildroot.org\n (client-ip=2605:bc80:3010::138; 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a=rsa-sha256; c=relaxed/relaxed;\n d=yoseli.org; s=gm1; t=1777037017;\n h=from:from:reply-to:subject:subject:date:date:message-id:message-id:\n to:to:cc:cc:mime-version:mime-version:\n content-transfer-encoding:content-transfer-encoding:\n in-reply-to:in-reply-to:references:references;\n bh=0guQTh2WQjwKdSG9Ui2EAirKru3fKMfDYZKKK3gYLIE=;\n b=mnvyppfU40aaWH7KBR3SwyIOiypLLZUAd/egeZiKUAFhJYTWpAxe0kpdbdy9eSHJwdR7Fl\n 2M33bCQe62bSpaSOzXZ2gV1LQjQnVzNmGEq5gm83H1po736grkIyMQyUmJxVgaHautJ04b\n BFerj67rJ0mEBIGTzjFjme/HhS+9dQtSCaUuZKGxmslhwfDH2fJYoT2GgxmC9kd1MfP9l6\n 0u+MFDHAV3kxcRwwkF9xsWj3y5B3mGTrT2LeXoxwOD81YUuW/ys4qNxVLtzSPqoXzJ9vU1\n ZlTm5CK7We2iflZ0DHUbYKW+/qyRoC9aHDlsP3aqb8dxTuZk+VlRX4h5n/qAtg==","X-Mailman-Original-Authentication-Results":["smtp3.osuosl.org;\n dmarc=none (p=none dis=none)\n header.from=yoseli.org","smtp3.osuosl.org;\n dkim=pass (2048-bit key,\n unprotected) header.d=yoseli.org header.i=@yoseli.org header.a=rsa-sha256\n header.s=gm1 header.b=mnvyppfU"],"Subject":"[Buildroot] [PATCH 04/11] package/gmp: disable C++ bindings on m68k\n ColdFire","X-BeenThere":"buildroot@buildroot.org","X-Mailman-Version":"2.1.30","Precedence":"list","List-Id":"Discussion and development of buildroot ","List-Unsubscribe":",\n ","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n ","Cc":"Bernd Kuhls ,\n Jean-Michel Hautbois ,\n Fabrice Fontaine ,\n Thomas Petazzoni ,\n Giulio Benetti ,\n Ismael Luceno , Romain Naour ","Content-Type":"text/plain; charset=\"us-ascii\"","Content-Transfer-Encoding":"7bit","Errors-To":"buildroot-bounces@buildroot.org","Sender":"\"buildroot\" "},"content":"On m68k ColdFire, libgcc.a exports __sync_* atomic built-in functions\nas hidden symbols. When GMP's C++ bindings are enabled, libgmpxx.so\nlinks against libstdc++ which references these hidden symbols, causing\na linker error:\n\n hidden symbol '__sync_val_compare_and_swap_4' in libgcc.a is\n referenced by DSO\n\nDisable C++ bindings on m68k ColdFire. The C library (libgmp.so) is\nunaffected.\n\nSigned-off-by: Jean-Michel Hautbois \n---\n package/gmp/gmp.mk | 4 +++-\n 1 file changed, 3 insertions(+), 1 deletion(-)","diff":"diff --git a/package/gmp/gmp.mk b/package/gmp/gmp.mk\nindex 07aa4aefdf..8dd60fd2a0 100644\n--- a/package/gmp/gmp.mk\n+++ b/package/gmp/gmp.mk\n@@ -31,7 +31,9 @@ ifeq ($(BR2_riscv):$(BR2_RISCV_ISA_RVM),y:)\n GMP_CONF_OPTS += --disable-assembly\n endif\n \n-ifeq ($(BR2_INSTALL_LIBSTDCPP),y)\n+ifeq ($(BR2_m68k_cf),y)\n+GMP_CONF_OPTS += --disable-cxx\n+else ifeq ($(BR2_INSTALL_LIBSTDCPP),y)\n GMP_CONF_OPTS += --enable-cxx\n else\n GMP_CONF_OPTS += --disable-cxx\n","prefixes":["04/11"]}