[automake 1.16.3 autoconf 2.71]
Folks, I have a `Makefile.am` in a `frontend` subdirectory that looks like the following (abridged). bin_PROGRAMS = ttfautohint ttfautohint_SOURCES = info.cpp \ info.h \ main.cpp bin_PROGRAMS += ttfautohintGUI ttfautohintGUI_SOURCES = ddlineedit.cpp \ ddlineedit.h \ info.cpp \ info.h \ main.cpp \ maingui.cpp \ maingui.h \ ttlineedit.cpp \ ttlineedit.h nodist_ttfautohintGUI_SOURCES = ddlineedit.moc.cpp \ maingui.moc.cpp \ static-plugins.cpp \ ttlineedit.moc.cpp ttfautohintGUI_CXXFLAGS = $(QT_CXXFLAGS) ttfautohintGUI_LDFLAGS = $(QT_LDFLAGS) ttfautohintGUI_CPPFLAGS = $(AM_CPPFLAGS) \ $(QT_CPPFLAGS) \ -DBUILD_GUI ttfautohintGUI_LDADD = $(LDADD) \ $(QT_LIBS) BUILT_SOURCES = ddlineedit.moc.cpp \ maingui.moc.cpp \ static-plugins.cpp \ ttlineedit.moc.cpp Running the generated `Makefile` with `make -j12`, I get this: ... Making all in frontend make[2]: Entering directory '.../frontend' ... make all-am make[3]: Entering directory '.../frontend' CXX info.o CXX main.o CXX ttfautohintGUI-ddlineedit.o CXX ttfautohintGUI-info.o CXX ttfautohintGUI-main.o CXX ttfautohintGUI-maingui.o CXX ttfautohintGUI-ttlineedit.o make ttfautohint CXX ttfautohintGUI-ddlineedit.moc.o CXX ttfautohintGUI-maingui.moc.o CXX ttfautohintGUI-static-plugins.o CXX ttfautohintGUI-ttlineedit.moc.o make[4]: Entering directory '.../frontend' CXX info.o make ttfautohintGUI make[4]: Entering directory '.../frontend' CXXLD ttfautohintGUI CXX main.o mv: cannot stat '.deps/info.Tpo': No such file or directory make[4]: *** [Makefile:1401: info.o] Error 1 make[4]: *** Waiting for unfinished jobs.... CXXLD ttfautohint make[4]: Leaving directory '.../frontend' ... What am I doing wrong? I would be glad for any pointers. Werner