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bh=AbQcPYdeg9iY48jnsb4SHHwJNyPOCT1u+L3dPhNxTHo=; b=PUYyPMTlhpli+hoh4Cmk1oLKhRcQrO0Qa2GWZHVB9822QOt/BzyGVUmUtYmlQeKSy6ryES ZEmGatjiNbcyeGndrDmL4pP9CmAglvTfyfUOGGlN/O9fe+isB+UB7qYKdB1Gs0a7mHaves uNr3WkJvZbxCWCnNN3aGWO1isAIMs2o= X-MC-Unique: kOmYtLRlN1mudMyqYxRs9A-1 From: Thomas Huth To: Paolo Bonzini , =?UTF-8?q?Alex=20Benn=C3=A9e?= , qemu-devel@nongnu.org Cc: qemu-stable@nongnu.org Subject: [PATCH] configure: Fix error message when C compiler is not working Date: Fri, 8 Mar 2024 07:00:34 +0100 Message-ID: <20240308060034.139670-1-thuth@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.9 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.133.124; envelope-from=thuth@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -26 X-Spam_score: -2.7 X-Spam_bar: -- X-Spam_report: (-2.7 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.583, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1709877707280100003 Content-Type: text/plain; charset="utf-8" If you try to run the configure script on a system without a working C compiler, you get a very misleading error message: ERROR: Unrecognized host OS (uname -s reports 'Linux') We should rather tell the user that we were not able to use the C compiler instead, otherwise they will have a hard time to figure out what was going wrong. Fixes: 264b803721 ("configure: remove compiler sanity check") Signed-off-by: Thomas Huth --- configure | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) diff --git a/configure b/configure index 3cd736b139..a036923dee 100755 --- a/configure +++ b/configure @@ -411,7 +411,7 @@ else # Using uname is really broken, but it is just a fallback for architectu= res # that are going to use TCI anyway cpu=3D$(uname -m) - echo "WARNING: unrecognized host CPU, proceeding with 'uname -m' output = '$cpu'" + echo "WARNING: could not determine host CPU, proceeding with 'uname -m' = output '$cpu'" fi =20 # Normalise host CPU name to the values used by Meson cross files and in s= ource @@ -1000,10 +1000,12 @@ if test -z "$ninja"; then fi =20 if test "$host_os" =3D "bogus"; then - # Now that we know that we're not printing the help and that - # the compiler works (so the results of the check_defines we used - # to identify the OS are reliable), if we didn't recognize the - # host OS we should stop now. + # Now that we know that we're not printing the help, we should stop now + # if we didn't recognize the host OS (or the C compiler is not working= ). + write_c_skeleton; + if ! compile_object ; then + error_exit "C compiler \"$cc\" is not usable" + fi error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')" fi =20 --=20 2.44.0