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Bug 1667694

Summary:	Clang plugin broken after clang 7.0.1 update due to hardcoded include path (patch available)
Product:	[Fedora] Fedora	Reporter:	Andrew Gunnerson <accounts+fedora>
Component:	kdevelop	Assignee:	Than Ngo <than>
Status:	CLOSED ERRATA	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	29	CC:	accounts+fedora, jgrulich, kde-sig, me, mwoehlke.floss, rdieter, smparrish, than
Target Milestone:	---
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:	kdevelop-5.3.1-2.fc29	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-02-13 02:46:52 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Andrew Gunnerson 2019-01-20 02:08:58 UTC

Description of problem:

KDevelop 5.3.1 determines clang's include path at built time and the path is hardcoded into the executable. This makes it impossible for clang to be updated without rebuilding kdevelop too. The recent clang 7.0.1 update broke the clang plugin because it was compiled with 7.0.0 and contains a hardcoded path:

---
$ strings /usr/lib64/libKDevClangPrivate.so.31 | grep 7.0.0
/usr/lib64/clang/7.0.0/include
---

The upstream 'master' branch of kdevelop includes the following patch to determine the include path at runtime. Could this be added to the Fedora package?

https://github.com/KDE/kdevelop/commit/41a0f0ce51979363c795919e00f914048d61326e

Version-Release number of selected component (if applicable):

kdevelop-5.3.1-1.fc29.x86_64
kdevelop-libs-5.3.1-1.fc29.x86_64
clang-7.0.1-1.fc29.x86_64

How reproducible:

Always

Steps to Reproduce:
1. Install the versions mentioned above
2. Run "QT_LOGGING_RULES='kdevelop.plugins.clang=true' kdevelop" in a terminal

Actual results:

Clang plugin fails with debug output:

---
kdevelop.plugins.clang: Detected Clang version: "7.0.1"
kdevplatform.shell: Could not load plugin "kdevclangsupport" , it reported the error: "The clang builtin include path \"/usr/lib64/clang/7.0.0/include\" is invalid (missing cpuid.h header).\nTry setting the KDEV_CLANG_BUILTIN_DIR environment variable manually to fix this.\nSee also: https://bugs.kde.org/show_bug.cgi?id=393779" Disabling the plugin now.
---

Expected results:

The plugin should load successfully.

Comment 1 Fedora Update System 2019-01-31 06:56:08 UTC

kdevelop-5.3.1-2.fc29 has been submitted as an update to Fedora 29. https://bodhi.fedoraproject.org/updates/FEDORA-2019-d839cb3b57

Comment 2 Fedora Update System 2019-02-01 03:26:04 UTC

kdevelop-5.3.1-2.fc29 has been pushed to the Fedora 29 testing repository. If problems still persist, please make note of it in this bug report.
See https://fedoraproject.org/wiki/QA:Updates_Testing for
instructions on how to install test updates.
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2019-d839cb3b57

Comment 3 Jan Grulich 2019-02-04 08:13:12 UTC

*** Bug 1671495 has been marked as a duplicate of this bug. ***

Comment 4 Fedora Update System 2019-02-13 02:46:52 UTC

kdevelop-5.3.1-2.fc29 has been pushed to the Fedora 29 stable repository. If problems still persist, please make note of it in this bug report.