qtpfsgui fails to build: OpenMP problem

[thimo@…]

I tried to install qtpfsgui and got this:

--->  Fetching distfiles for qtpfsgui
--->  Attempting to fetch qtpfsgui-1.9.3.tar.gz from http://freefr.dl.sourceforge.net/qtpfsgui
--->  Verifying checksum(s) for qtpfsgui
--->  Extracting qtpfsgui
--->  Applying patches to qtpfsgui
--->  Configuring qtpfsgui
--->  Building qtpfsgui
Error: org.macports.build for port qtpfsgui returned: command execution failed
Please see the log file for port qtpfsgui for details:
    /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_ports_aqua_qtpfsgui/qtpfsgui/main.log

In the log I've found the reason:

:info:build /usr/bin/clang++ -headerpad_max_install_names -fopenmp -arch x86_64 -Xarch_x86_64 -mmacosx-version-min=10.7 -o qtpfsgui.app/Contents/MacOS/qtpfsgui generat
ed_obj/pfs.o generated_obj/colorspace.o generated_obj/global.o generated_obj/main.o generated_obj/options.o generated_obj/smart_scroll_area.o generated_obj/panIconWidg
et.o generated_obj/gamma_and_levels.o generated_obj/gang.o generated_obj/commandline.o generated_obj/mainWindow.o generated_obj/DnDOption.o generated_obj/hdrviewer.o g
enerated_obj/luminancerange_widget.o generated_obj/histogram.o generated_obj/tonemappingDialog.o generated_obj/tonemapping_widget.o generated_obj/ldrviewer.o generated
_obj/tonemapperThread.o generated_obj/loadHdrThread.o generated_obj/hdrInputLoader.o generated_obj/preferencesDialog.o generated_obj/transplant.o generated_obj/resizeD
ialog.o generated_obj/projectiveDialog.o generated_obj/HdrCreationManager.o generated_obj/mtb_alignment.o generated_obj/createhdr.o generated_obj/robertson02.o generat
ed_obj/responses.o generated_obj/debevec.o generated_obj/newHdrWizard.o generated_obj/editingTools.o generated_obj/previewWidget.o generated_obj/pfsrotate.o generated_
obj/pfssize.o generated_obj/pfsgamma.o generated_obj/pfspanoramic.o generated_obj/pfsinrgbe.o generated_obj/pfsoutrgbe.o generated_obj/pfsoutldrimage.o generated_obj/r
gbeio.o generated_obj/pfstiff.o generated_obj/pfsinexr.o generated_obj/pfsoutexr.o generated_obj/pfstmo_ashikhmin02.o generated_obj/tmo_ashikhmin02.o generated_obj/pfs
tmo_drago03.o generated_obj/tmo_drago03.o generated_obj/pfstmo_durand02.o generated_obj/tmo_durand02.o generated_obj/bilateral.o generated_obj/fastbilateral.o generate
d_obj/pfstmo_fattal02.o generated_obj/tmo_fattal02.o generated_obj/pde.o generated_obj/pfstmo_reinhard05.o generated_obj/tmo_pattanaik00.o generated_obj/pfstmo_pattana
ik00.o generated_obj/pfstmo_reinhard02.o generated_obj/tmo_reinhard02.o generated_obj/approx.o generated_obj/contrast_domain.o generated_obj/pfstmo_mantiuk06.o generat
ed_obj/batch_dialog.o generated_obj/exif_operations.o generated_obj/moc_smart_scroll_area.o generated_obj/moc_panIconWidget.o generated_obj/moc_gamma_and_levels.o gene
rated_obj/moc_gang.o generated_obj/moc_commandline.o generated_obj/moc_mainWindow.o generated_obj/moc_DnDOption.o generated_obj/moc_hdrviewer.o gener
ated_obj/moc_luminancerange_widget.o generated_obj/moc_tonemappingDialog.o generated_obj/moc_tonemapping_widget.o generated_obj/moc_ldrviewer.o generated_obj/moc_tonemapperThread.o generated_obj/moc_loadHdrThread.o generated_obj/moc_hdrInputLoader.o generated_obj/moc_preferencesDialog.o generated_obj/moc_transplant.o generated_obj/moc_resizeDialog.o generated_obj/moc_projectiveDialog.o generated_obj/moc_HdrCreationManager.o generated_obj/moc_editingTools.o generated_obj/moc_previewWidget.o generated_obj/moc_newHdrWizard.o generated_obj/moc_batch_dialog.o generated_obj/qrc_icons.o   -F/opt/local/Library/Frameworks -F/opt/local/lib  -lexiv2 -lIlmImf -lImath -lHalf -lIex -lfftw3f -lm -ltiff -lIlmThread -L/opt/local/lib -ljpeg -lexpat -liconv -F/opt/local/Library/Frameworks -F/opt/local/lib -framework QtGui -framework QtCore 
:info:build ld: library not found for -lgomp
:info:build clang: error: linker command failed with exit code 1 (use -v to see invocation)
:info:build make: *** [qtpfsgui.app/Contents/MacOS/qtpfsgui] Error 1

Maybe the dependency on gomp is missing?

[ryandesign (Ryan Carsten Schmidt)]

It seems that gomp is a library provided with gcc and llvm-gcc. So there's no separate port to install. It should already be there, if you're using gcc or llvm-gcc. You're not; you're using clang, which is the default compiler that MacPorts uses as of Xcode 4.2. I'm not sure what the expected behavior is in that case—whether llvm-gcc's libgomp is used, or whether libgomp is unnecessary for clang. I assume the latter. Perhaps qtpfsgui erroneously assumes that gcc is the only compiler that exists, and assumes that libgomp is always used, and is unaware of the existence of the clang compiler.

I get the same error on my system. Unfortunately qtpfsgui is not UsingTheRightCompiler—it seems to always use clang no matter what—so it is not possible for me to test whether using llvm-gcc would fix the issue.

[mf2k (Frank Schima)]

This port no longer has a maintainer. See #47483.

[MarcusCalhoun-Lopez (Marcus Calhoun-Lopez)]

Cc Me!

[MarcusCalhoun-Lopez (Marcus Calhoun-Lopez)]

r149176 should fix this problem.