From patchwork Fri Jun 11 15:33:15 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Giuliano Procida X-Patchwork-Id: 43833 Return-Path: X-Original-To: patchwork@sourceware.org Delivered-To: patchwork@sourceware.org Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id 596A3398B17A for ; Fri, 11 Jun 2021 15:34:25 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 596A3398B17A DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sourceware.org; s=default; t=1623425665; bh=VzAEt5kTgidTC8RHyXSLOz3CZEklU0u4F41awZqEx4U=; h=Date:In-Reply-To:References:Subject:To:List-Id:List-Unsubscribe: List-Archive:List-Help:List-Subscribe:From:Reply-To:Cc:From; b=cC2ipCoiF54pslkMsO/6qG08YpeWukMJQo2Y3DroeV6nq4h0ngcc28hygyy+QTwzu +pXojaL+yqe/HM1QYqlKkQgf6P4H/qQ9T6UyhAWjKotfoiNupkR4KP/LPO1Sz+KWmz wTe+ij2TTGK+fXw3ZarOxCP1eu4IhyCqNojMOWIc= X-Original-To: libabigail@sourceware.org Delivered-To: libabigail@sourceware.org Received: from mail-qt1-x84a.google.com (mail-qt1-x84a.google.com [IPv6:2607:f8b0:4864:20::84a]) by sourceware.org (Postfix) with ESMTPS id 5D1BA38618BB for ; Fri, 11 Jun 2021 15:34:17 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 5D1BA38618BB Received: by mail-qt1-x84a.google.com with SMTP id r3-20020a05622a0343b029024761fabab8so2132487qtw.11 for ; Fri, 11 Jun 2021 08:34:17 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=VzAEt5kTgidTC8RHyXSLOz3CZEklU0u4F41awZqEx4U=; b=qNG/qXe7gg6/92eiOGF1knD/mG7pzFLUJ2fUhrujZpW5bfVmAqEgaEomjDiVc9rWyG uSuykBpV4KhI2m2w6WOBawwxAs0/6WtLLMaYCNpFyFwedhT8lReYQ8SN0BZRg061g7UH gVy1kCdrSwmIO3QpwAz4PyqEZA6Wy/XG/TASAonrSI+merVZGMxo+yUxaf3k+rW3s+C/ jywOCaJVGe8z2LUyKHgKjjbX5gw1JcgiJfzJZsowQJWJPu7ekNPhUlTLrjpCGFLhSQVG Idip3be12KiGQneIFHlsRDSuwhIqDG/9YdcbY7J8njrlR4bxLPWm8qbXgO6QXa89ViTG vbxg== X-Gm-Message-State: AOAM5329aDwBOY6d7GXQOp+fgVU8g4Poqr9tStUe9aBvbnz2vJz7bzRw X2AktTk8AagHQJNuAjxxvAwAba56WX5juyk7IcuVExTp1Rtc5HZ9b/1HfhRKMW3398B4uZ21fjV My4dJmH3XXomjRlROYSO91/tbIxfbRqf074PXRh+p/XV/29IQ/9TuU5FUEmQY0Qs5x4XxbzI= X-Google-Smtp-Source: ABdhPJy917VmAsd6YeAivHFPMuZ6LUQRbTKvUlXd/maPsH/sXFhbHJxVEfiRXeWzRG+bF4ymSp2aZD7sTQdXBw== X-Received: from tef.lon.corp.google.com ([2a00:79e0:d:210:c264:c1f9:cf3c:2c0b]) (user=gprocida job=sendgmr) by 2002:ad4:5309:: with SMTP id y9mr5400919qvr.31.1623425656833; Fri, 11 Jun 2021 08:34:16 -0700 (PDT) Date: Fri, 11 Jun 2021 16:33:15 +0100 In-Reply-To: <20210611153319.778996-1-gprocida@google.com> Message-Id: <20210611153319.778996-3-gprocida@google.com> Mime-Version: 1.0 References: <20210611153319.778996-1-gprocida@google.com> X-Mailer: git-send-email 2.32.0.272.g935e593368-goog Subject: [PATCH 2/6] Allow C++17 code to be compiled To: libabigail@sourceware.org X-Spam-Status: No, score=-22.3 required=5.0 tests=BAYES_00, DKIMWL_WL_MED, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, GIT_PATCH_0, RCVD_IN_DNSWL_NONE, SPF_HELO_NONE, SPF_PASS, TXREP, USER_IN_DEF_DKIM_WL autolearn=ham autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on server2.sourceware.org X-BeenThere: libabigail@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Mailing list of the Libabigail project List-Unsubscribe: , List-Archive: List-Help: List-Subscribe: , X-Patchwork-Original-From: Giuliano Procida via Libabigail From: Giuliano Procida Reply-To: Giuliano Procida Cc: maennich@google.com, kernel-team@android.com, teguiani@android.com Errors-To: libabigail-bounces+patchwork=sourceware.org@sourceware.org Sender: "Libabigail" The BTF code was developed in a C++17 environment. To ease integration here, allow C++17 to be enabled at configuration time. * configure.ac: Add --enable-cxx17 option defaulting to no. Signed-off-by: Giuliano Procida --- configure.ac | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) diff --git a/configure.ac b/configure.ac index 735cc9de..edd03cf8 100644 --- a/configure.ac +++ b/configure.ac @@ -138,6 +138,12 @@ AC_ARG_ENABLE(ubsan, ENABLE_UBSAN=$enableval, ENABLE_UBSAN=no) +AC_ARG_ENABLE(cxx17, + AS_HELP_STRING([--enable-cxx17=yes|no], + [enable features that use the C++17 compiler]), + ENABLE_CXX17=$enableval, + ENABLE_CXX17=no) + dnl ************************************************* dnl check for dependencies dnl ************************************************* @@ -153,7 +159,7 @@ AC_LANG([C++]) AC_LANG_COMPILER_REQUIRE dnl -dnl We use C++11 +dnl We use C++11 or C++17 if enabled dnl CXX_STANDARD=c++11 @@ -591,6 +597,12 @@ AX_VALGRIND_DFLT(sgcheck, off) AX_VALGRIND_CHECK +dnl Handle conditional use of a C++17 compiler +if test x$ENABLE_CXX17 = xyes; then + CXX_STANDARD=c++17 +fi +AM_CONDITIONAL(ENABLE_CXX17, test x$ENABLE_CXX17 = xyes) + dnl Set the list of libraries libabigail depends on DEPS_LIBS="$XML_LIBS $ELF_LIBS $DW_LIBS"