Created attachment 205916 [details]
Fix msgmerge --for-msgfmt bug

This is a bug which is already fixed by upstream:
https://lists.gnu.org/archive/html/bug-gettext/2019-05/msg00124.html

After updating to gettext 0.20, 'msgmerge --for-msgfmt' stops producing an output file if it decides that the output file will be empty. This causes 'msgfmt' to fail because it can't find the file produced by 'msgmerge'. Since the bug has already been fixed by upstream, can we add the patch to the port?

Currently this bug causes libgtop and gcr to fail to build from upstream git:

cd /home/lantw44/gnome/source/libgtop/po && rm -f mi.gmo && /usr/local/bin/msgmerge --for-msgfmt -o mi.1po mi.po libgtop.pot && /usr/local/bin/msgfmt -c --statistics --verbose -o mi.gmo mi.1po && rm -f mi.1po
/usr/local/bin/msgfmt: error while opening "mi.1po" for reading: No such file or directory

cd /home/lantw44/gnome/source/gcr/po && rm -f az.gmo && /usr/local/bin/msgmerge --for-msgfmt -o az.1po az.po gcr.pot && /usr/local/bin/msgfmt -c --statistics --verbose -o az.gmo az.1po && rm -f az.1po
/usr/local/bin/msgfmt: error while opening "az.1po" for reading: No such file or directory
cd /home/lantw44/gnome/source/gcr/po && rm -f cy.gmo && /usr/local/bin/msgmerge --for-msgfmt -o cy.1po cy.po gcr.pot && /usr/local/bin/msgfmt -c --statistics --verbose -o cy.gmo cy.1po && rm -f cy.1po
/usr/local/bin/msgfmt: error while opening "cy.1po" for reading: No such file or directory
cd /home/lantw44/gnome/source/gcr/po && rm -f en_CA.gmo && /usr/local/bin/msgmerge --for-msgfmt -o en_CA.1po en_CA.po gcr.pot && /usr/local/bin/msgfmt -c --statistics --verbose -o en_CA.gmo en_CA.1po && rm -f en_CA.1po
/usr/local/bin/msgfmt: error while opening "en_CA.1po" for reading: No such file or directory
cd /home/lantw44/gnome/source/gcr/po && rm -f is.gmo && /usr/local/bin/msgmerge --for-msgfmt -o is.1po is.po gcr.pot && /usr/local/bin/msgfmt -c --statistics --verbose -o is.gmo is.1po && rm -f is.1po
/usr/local/bin/msgfmt: error while opening "is.1po" for reading: No such file or directory
cd /home/lantw44/gnome/source/gcr/po && rm -f ka.gmo && /usr/local/bin/msgmerge --for-msgfmt -o ka.1po ka.po gcr.pot && /usr/local/bin/msgfmt -c --statistics --verbose -o ka.gmo ka.1po && rm -f ka.1po
/usr/local/bin/msgfmt: error while opening "ka.1po" for reading: No such file or directory
cd /home/lantw44/gnome/source/gcr/po && rm -f mg.gmo && /usr/local/bin/msgmerge --for-msgfmt -o mg.1po mg.po gcr.pot && /usr/local/bin/msgfmt -c --statistics --verbose -o mg.gmo mg.1po && rm -f mg.1po
/usr/local/bin/msgfmt: error while opening "mg.1po" for reading: No such file or directory
cd /home/lantw44/gnome/source/gcr/po && rm -f mn.gmo && /usr/local/bin/msgmerge --for-msgfmt -o mn.1po mn.po gcr.pot && /usr/local/bin/msgfmt -c --statistics --verbose -o mn.gmo mn.1po && rm -f mn.1po
/usr/local/bin/msgfmt: error while opening "mn.1po" for reading: No such file or directory
cd /home/lantw44/gnome/source/gcr/po && rm -f rw.gmo && /usr/local/bin/msgmerge --for-msgfmt -o rw.1po rw.po gcr.pot && /usr/local/bin/msgfmt -c --statistics --verbose -o rw.gmo rw.1po && rm -f rw.1po
/usr/local/bin/msgfmt: error while opening "rw.1po" for reading: No such file or directory
cd /home/lantw44/gnome/source/gcr/po && rm -f si.gmo && /usr/local/bin/msgmerge --for-msgfmt -o si.1po si.po gcr.pot && /usr/local/bin/msgfmt -c --statistics --verbose -o si.gmo si.1po && rm -f si.1po
/usr/local/bin/msgfmt: error while opening "si.1po" for reading: No such file or directory
cd /home/lantw44/gnome/source/gcr/po && rm -f xh.gmo && /usr/local/bin/msgmerge --for-msgfmt -o xh.1po xh.po gcr.pot && /usr/local/bin/msgfmt -c --statistics --verbose -o xh.gmo xh.1po && rm -f xh.1po
/usr/local/bin/msgfmt: error while opening "xh.1po" for reading: No such file or directory