Bug 733496

Summary:	media-sound/supercollider-3.11.0 : ninja: error: build.ninja:7648: multiple rules generate editors/sc-el/el/sclang-server.elc [-w dupbuild=err]
Product:	Gentoo Linux	Reporter:	Jan Seeger <jan.seeger>
Component:	Current packages	Assignee:	No maintainer - Look at https://wiki.gentoo.org/wiki/Project:Proxy_Maintainers if you want to take care of it <maintainer-needed>
Status:	RESOLVED FIXED
Severity:	normal	CC:	asturm, flexibeast, leonchik1976, paul, proxy-maint, puttabutta, scott, toralf
Priority:	Normal	Keywords:	PullRequest
Version:	unspecified
Hardware:	All
OS:	Linux
See Also:	https://github.com/gentoo/gentoo/pull/30488
Whiteboard:
Package list:		Runtime testing required:	---
Attachments:	emerge --info output. build.log Build log

Description Jan Seeger 2020-07-22 11:08:17 UTC

Created attachment 650168 [details]
emerge --info output.

When building supercollider with the /emacs/ useflag enabled, ninja will fail build becaus there are multiple rules that generate `sc-el/el/sclang-server.elc`. This seems to be a bug with cmake custom targets and ninja, however, I was unable to find a relevant upstream bug.

Building with make works around this error, so a fix would be adding "CMAKE_MAKEFILE_GENERATOR=emake" to this ebuild.

The failed compile output:

>>> Compiling source in /tmp/portage/media-sound/supercollider-3.11.0/work/SuperCollider-3.11.0-Source ...
 * Working in BUILD_DIR: "/tmp/portage/media-sound/supercollider-3.11.0/work/supercollider-3.11.0_build"
ninja -v -j4 -l0
ninja: warning: phony target 'editors/sc-el/el/sclang-server.elc' names itself as an input; ignoring [-w phonycycle=warn]
ninja: warning: phony target 'editors/sc-el/el/sclang-minor-mode.elc' names itself as an input; ignoring [-w phonycycle=warn]
ninja: warning: phony target 'editors/sc-el/el/sclang-language.elc' names itself as an input; ignoring [-w phonycycle=warn]
ninja: warning: phony target 'editors/sc-el/el/sclang-keys.elc' names itself as an input; ignoring [-w phonycycle=warn]
ninja: warning: phony target 'editors/sc-el/el/sclang-dev.elc' names itself as an input; ignoring [-w phonycycle=warn]
ninja: warning: phony target 'editors/sc-el/el/sclang-document.elc' names itself as an input; ignoring [-w phonycycle=warn]
ninja: warning: phony target 'editors/sc-el/el/sclang-mode.elc' names itself as an input; ignoring [-w phonycycle=warn]
ninja: warning: phony target 'editors/sc-el/el/sclang-menu.elc' names itself as an input; ignoring [-w phonycycle=warn]
ninja: warning: phony target 'editors/sc-el/el/sclang-interp.elc' names itself as an input; ignoring [-w phonycycle=warn]
ninja: warning: phony target 'editors/sc-el/el/sclang-help.elc' names itself as an input; ignoring [-w phonycycle=warn]
ninja: warning: phony target 'editors/sc-el/el/sclang-widgets.elc' names itself as an input; ignoring [-w phonycycle=warn]
ninja: warning: phony target 'editors/sc-el/el/sclang-browser.elc' names itself as an input; ignoring [-w phonycycle=warn]
ninja: warning: phony target 'editors/sc-el/el/sclang-util.elc' names itself as an input; ignoring [-w phonycycle=warn]
ninja: warning: phony target 'editors/sc-el/el/sclang.elc' names itself as an input; ignoring [-w phonycycle=warn]
ninja: warning: phony target 'editors/sc-el/el/sclang-vars.elc' names itself as an input; ignoring [-w phonycycle=warn]
ninja: error: build.ninja:7648: multiple rules generate editors/sc-el/el/sclang-server.elc [-w dupbuild=err]

 * ERROR: media-sound/supercollider-3.11.0::gentoo failed (compile phase):
 *   ninja -v -j4 -l0 failed
 * 
 * Call stack:
 *     ebuild.sh, line  125:  Called src_compile
 *   environment, line 2060:  Called cmake_src_compile
 *   environment, line  746:  Called cmake_build
 *   environment, line  725:  Called eninja
 *   environment, line 1164:  Called die
 * The specific snippet of code:
 *       "$@" || die "${nonfatal_args[@]}" "${*} failed"
 * 
 * If you need support, post the output of `emerge --info '=media-sound/supercollider-3.11.0::gentoo'`,
 * the complete build log and the output of `emerge -pqv '=media-sound/supercollider-3.11.0::gentoo'`.
 * The complete build log is located at '/var/log/portage/buildlogs/media-sound:supercollider-3.11.0:20200722-104955.log'.
 * The ebuild environment file is located at '/tmp/portage/media-sound/supercollider-3.11.0/temp/environment'.
 * Working directory: '/tmp/portage/media-sound/supercollider-3.11.0/work/supercollider-3.11.0_build'
 * S: '/tmp/portage/media-sound/supercollider-3.11.0/work/SuperCollider-3.11.0-Source'

Comment 1 Jan Seeger 2020-07-22 11:11:25 UTC

Created attachment 650170 [details]
build.log

Comment 2 Jeroen Roovers (RETIRED) gentoo-dev

2020-07-30 10:39:41 UTC

Comment on attachment 650170 [details]
build.log

This is not the build log you wanted to upload.

Comment 3 Jeroen Roovers (RETIRED) gentoo-dev

2020-07-30 10:40:28 UTC

Please attach the correct build log to this bug report.

Comment 4 Jan Seeger 2020-07-30 12:13:49 UTC

Created attachment 651638 [details]
Build log

Comment 5 Leonid Kopylov 2021-06-21 08:31:08 UTC

Have same error

Comment 6 Andreas Sturmlechner gentoo-dev

2024-02-04 12:10:16 UTC

assuming this is fixed, then.

Comment 7 Andreas Sturmlechner gentoo-dev

2024-02-04 12:11:01 UTC

*** Bug 846926 has been marked as a duplicate of this bug. ***