Parallel build breaks

[yurivict]

==== Building guetzli (release) ====
Creating bin/Release
mkdir -p bin/Release
dct_double.cc
c++ -O2 -pipe -fstack-protector -fno-strict-aliasing   -MMD -MP  -I. -Ithird_par
ty/butteraugli -std=c++11 `pkg-config --cflags libpng`  -o "obj/Release/dct_doub
le.o" -MF "obj/Release/dct_double.d" -c "guetzli/dct_double.cc"
butteraugli_comparator.cc
debug_print.cc
c++ -O2 -pipe -fstack-protector -fno-strict-aliasing   -MMD -MP  -I. -Ithird_par
ty/butteraugli -std=c++11 `pkg-config --cflags libpng`  -o "obj/Release/debug_pr
int.o" -MF "obj/Release/debug_print.d" -c "guetzli/debug_print.cc"
c++ -O2 -pipe -fstack-protector -fno-strict-aliasing   -MMD -MP  -I. -Ithird_par
ty/butteraugli -std=c++11 `pkg-config --cflags libpng`  -o "obj/Release/butterau
gli_comparator.o" -MF "obj/Release/butteraugli_comparator.d" -c "guetzli/buttera
ugli_comparator.cc"
Creating obj/Release
error: unable to open output file 'obj/Release/debug_print.o': 'No such file or
directory'
1 error generated.
gmake[2]: *** [guetzli.make:154: obj/Release/debug_print.o] Error 1

Original FreeBSD bug report: https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=226070