Bug 1662868

Summary:	cups fails to build if clang is installed
Product:	Red Hat Enterprise Linux 8	Reporter:	Zdenek Dohnal <zdohnal>
Component:	cups	Assignee:	Zdenek Dohnal <zdohnal>
Status:	CLOSED ERRATA	QA Contact:	Petr Sklenar <psklenar>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	8.1	CC:	kdudka, psklenar, qe-baseos-daemons, tkorbar
Target Milestone:	rc	Keywords:	EasyFix, Patch, Reopened
Target Release:	8.0
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:	cups-2.2.6-26.el8	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:	1659998	Environment:
Last Closed:	2019-11-05 22:28:21 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:
Bug Depends On:	1659998, 1672715, 1680922
Bug Blocks:	1684588, 1701002

Description Zdenek Dohnal 2019-01-02 09:39:34 UTC

+++ This bug was initially created as a clone of Bug #1659998 +++

Version-Release number of selected component (if applicable):
cups-1.6.3-36.el7


Steps to Reproduce:
1. yum install clang
2. brew download-build -a src cups-1.6.3-36.el7
3. yum-builddep ./cups-1.6.3-36.el7.src.rpm
4. rpmbuild --rebuild ./cups-1.6.3-36.el7.src.rpm


Actual results:
configure: WARNING: unrecognized options: --disable-dependency-tracking
checking for gawk... gawk
checking for x86_64-redhat-linux-gnu-clang... no
checking for x86_64-redhat-linux-gnu-cc... no
checking for x86_64-redhat-linux-gnu-gcc... no
checking for clang... clang
checking whether the C compiler works... no
configure: error: in `/root/rpmbuild/BUILD/cups-1.6.3':
configure: error: C compiler cannot create executables
See `config.log' for more details
error: Bad exit status from /var/tmp/rpm-tmp.Vv8OYA (%build)


Expected results:
Successful build.


Additional info:
This bug prevents the package from being automatically scanned by Covscan.  This fix for this bug is trivial:

--- a/cups.spec
+++ b/cups.spec
@@ -402,6 +402,8 @@ autoconf -I config-scripts

 %build
 export CFLAGS="$RPM_OPT_FLAGS -fstack-protector-all -DLDAP_DEPRECATED=1"
+export CC=gcc
+export CXX=g++
 # --enable-debug to avoid stripping binaries
 %configure --with-docdir=%{_datadir}/%{name}/www --enable-debug \
 %if %lspp

--- Additional comment from Zdenek Dohnal on 2019-01-02 09:38:43 UTC ---

Hi Kamil,

thank you for reporting the issue and the patch! I'll clone the bug for RHEL 8 and investigate if the issue is there too. (plus I'll fix it in Fedora too, for future RHEL releases).

Comment 1 Zdenek Dohnal 2019-01-03 12:58:03 UTC

It is not problem on RHEL 8, closing.

Comment 19 errata-xmlrpc 2019-11-05 22:28:21 UTC

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2019:3617