Bug 216643

Summary:	net-misc/unison-2.27.57 fails to emerge
Product:	Gentoo Linux	Reporter:	a_tevelev
Component:	Current packages	Assignee:	Gentoo Team for the ML programming language family <ml>
Status:	RESOLVED FIXED
Severity:	normal	CC:	gentoo-bugzilla
Priority:	High
Version:	unspecified
Hardware:	All
OS:	Linux
Whiteboard:
Package list:		Runtime testing required:	---
Attachments:	emerge --info

Description a_tevelev 2008-04-07 01:27:07 UTC

# emerge -pv net-misc/unison

These are the packages that would be merged, in order:

Calculating dependencies... done!
[ebuild  N    ] net-misc/unison-2.27.57  USE="gtk threads -debug -doc -static" 0 kB 

Total: 1 package (1 new), Size of downloads: 0 kB

...

Linking unison
ocamlopt -verbose -I lwt -I ubase -I +lablgtk2 -o unison   unix.cmxa str.cmxa lablgtk.cmxa ubase/projectInfo.cmx ubase/myMap.cmx ubase/safelist.cmx ubase/uprintf.cmx ubase/util.cmx ubase/rx.cmx ubase/uarg.cmx ubase/prefs.cmx ubase/trace.cmx lwt/pqueue.cmx lwt/lwt.cmx lwt/lwt_util.cmx lwt/lwt_unix.cmx case.cmx pred.cmx uutil.cmx fileutil.cmx name.cmx path.cmx fspath.cmx fingerprint.cmx abort.cmx osx.cmx props.cmx fileinfo.cmx os.cmx lock.cmx clroot.cmx common.cmx tree.cmx checksum.cmx terminal.cmx transfer.cmx xferhint.cmx remote.cmx globals.cmx copy.cmx stasher.cmx update.cmx files.cmx sortri.cmx recon.cmx transport.cmx strings.cmx uicommon.cmx uitext.cmx test.cmx main.cmx pixmaps.cmx uigtk2.cmx linkgtk2.cmx osxsupport.o pty.o -cclib -lutil
Cannot find file lablgtk.cmxa
make: *** [unison] Error 2
 * 
 * ERROR: net-misc/unison-2.27.57 failed.
 * Call stack:
 *               ebuild.sh, line   49:  Called src_compile
 *             environment, line 2116:  Called die
 * The specific snippet of code:
 *       emake -j1 $myconf CFLAGS="" || die "error making unsion"
 *  The die message:
 *   error making unsion
 * 
 * If you need support, post the topmost build error, and the call stack if relevant.
 * A complete build log is located at '/tmp/portage/net-misc/unison-2.27.57/temp/build.log'.
 * The ebuild environment file is located at '/tmp/portage/net-misc/unison-2.27.57/temp/environment'.
 *

Comment 1 a_tevelev 2008-04-07 01:28:15 UTC

Created attachment 148937 [details]
emerge --info

Comment 2 Alexis Ballier gentoo-dev

2008-04-07 20:18:34 UTC

emerge -pv lablgtk please

Comment 3 a_tevelev 2008-04-16 02:15:00 UTC

Works only if dev-ml/lablgtk is emerged with ocamlopt flag.

Comment 4 Henk de Leeuw 2008-05-12 20:55:20 UTC

Indeed, adding the ocamlopt USE flag resolves this.
But I think that, apart from this bug report, I would never have found out myself.
Therefore, I would suggest that, when a specific USE flag is necessary, the ebuild output tells you so.
In this case, when emerging unison, it would have been helpful when we had gotten the error message:
"It appears that you have a version of lablgtk installed that was built without the ocamlopt USE flag. Without this flag, unison will not build. Please rebuild lablgtk with the ocamlopt USE flag and try again"