Control: tags -1 + moreinfo On 1/17/19 12:46 PM, Matthias Klose wrote: > Package: src:sagemath > Version: 8.6-2 > Severity: important > Tags: sid buster > > sagemath ftbfs with ld --as-needed as the default > > the build log shows in various locations: > > [...] > [sagelib-8.6] g++ -pthread -shared -Wl,-O1 -Wl,-Bsymbolic-functions > -Wl,-Bsymbolic-functions -Wl,-z,relro -fno-strict-aliasing -DNDEBUG -g -fwrapv > -O2 -Wall -Wstrict-prototypes -Wdate-time -D_FORTIFY_SOURCE=2 -g > -fdebug-prefix-map=/build/python2.7-bqwtKO/python2.7-2.7.15=. > -fstack-protector-strong -Wformat -Werror=format-security > -L/<<PKGBUILDDIR>>/debian/build/usr/lib > -Wl,-rpath,/usr/lib/x86_64-linux-gnu/gap > -g -O2 -fdebug-prefix-map=/<<PKGBUILDDIR>>=. -fstack-protector-strong -Wformat > -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 > build/temp.linux-x86_64-2.7/build/cythonized/sage/matrix/matrix_modn_sparse.o > -L/<<PKGBUILDDIR>>/debian/build/usr/lib -L/usr/lib/x86_64-linux-gnu/gap > -llinbox-1.5.2 -llinboxsage-1.5.2 -lntl -liml -lblas -llapack -lgivaro -lflint > -lmpfr -lgmp -lgmpxx -lstdc++ -o > build/lib.linux-x86_64-2.7/sage/matrix/matrix_modn_sparse.so -lpari > [...] > > the object file appears *after* the libraries on the command line, so nothing > is > linked. I didn't grok sage/setup.py where exactly that occurs, but you always > should place the libraries after the object files on the command line. > > You can test that by setting > > export DEB_LDFLAGS_MAINT_APPEND = -Wl,--as-needed > > Please forward that upstream. > In your example the libraries do come after the object file (matrix_modn_sparse.o) and I can build sage with --as-needed just fine. Could it be that the only issue here is the missing -fopenmp?
Best, Tobias
