To switch to non-default C/C++ compiler, you need to run ./configure CC=gcc-7 CXX=g++-7
and most probably make distclean before starting the build On Thursday, August 16, 2018 at 12:53:16 AM UTC+3, Luis Finotti wrote: > > > > On Wednesday, August 15, 2018 at 5:14:47 PM UTC-4, Dima Pasechnik wrote: >> >> [pip-9.0.3] File >> "/usr/local/sage-8.3/local/lib/python3.6/encodings/ascii.py", line 26, in >> decode >> [pip-9.0.3] return codecs.ascii_decode(input, self.errors)[0] >> >> This is actually strange - why is it python3.6? >> Are you trying to build a python3-based Sagemath? >> (python3 support is very much work in progress in Sage) >> >> >> > No. I just downloaded and extracted the source, did "export MAKE="make > -j4 -l5.5" and then "make", like I usually do. I certainly did not try to > do anything different/novel. > > > >> On Thursday, August 16, 2018 at 12:05:45 AM UTC+3, Dima Pasechnik wrote: >>> >>> besides it's being gcc 8.2, and AFAIK nobody ever built Sage with gcc 8, >>> I don't see anything strange. >>> >>> Not sure what data pip installer is choking on here. Hostnames with >>> non-ascii chars? >>> >> > I don't think so: > > $ file /etc/hosts > /etc/hosts: ASCII text > > And I don't think there is any weird directory/file name. (At least, I > know not to do it.) > > About GCC, I have no idea when it was updated on Sid. I have GCC 7 > installed also. I tried compiling with GCC 7, but it failed (maybe I did > not have the correct command -- I just did what "Google told me"): > > $ LC_ALL=C make CC=gcc-7 CPP=g++-7 CXX=g++-7 LD=g++-7 > make -j4 -l5.5 build/make/Makefile --stop > make[1]: Entering directory '/usr/local/sage-8.3' > rm -f config.log > mkdir -p logs/pkgs > ln -s logs/pkgs/config.log config.log > checking for a BSD-compatible install... /usr/bin/install -c > checking whether build environment is sane... yes > checking for a thread-safe mkdir -p... /bin/mkdir -p > checking for gawk... gawk > checking whether make -j4 -l5.5 sets $(MAKE)... yes > checking whether make -j4 -l5.5 supports nested variables... yes > checking whether to enable maintainer-specific portions of Makefiles... yes > checking for root user... no > checking build system type... x86_64-pc-linux-gnu > checking host system type... x86_64-pc-linux-gnu > checking for ar... yes > checking for m4... yes > checking for ranlib... yes > checking for strip... yes > checking for GNU or BSD tar... /bin/tar > checking for latex... yes > checking for perl... /usr/bin/perl > checking for Perl version 5.8.0 or later... yes > checking for git... /usr/bin/X11/git > checking for yasm... no > checking for gcc... gcc-7 > checking whether the C compiler works... yes > checking for C compiler default output file name... a.out > checking for suffix of executables... > checking whether we are cross compiling... no > checking for suffix of object files... o > checking whether we are using the GNU C compiler... yes > checking whether gcc-7 accepts -g... yes > checking for gcc-7 option to accept ISO C89... none needed > checking whether gcc-7 understands -c and -o together... yes > checking for style of include used by make -j4 -l5.5... GNU > checking dependency style of gcc-7... none > checking how to run the C preprocessor... g++-7 > configure: error: in `/usr/local/sage-8.3': > configure: error: C preprocessor "g++-7" fails sanity check > See `config.log' for more details > If you would like to try to build Sage anyway (to help porting), > export the variable 'SAGE_PORT' to something non-empty. > make[1]: *** [Makefile:42: build/make/Makefile] Error 1 > make[1]: Leaving directory '/usr/local/sage-8.3' > make: *** [Makefile:32: base-toolchain] Error 2 > > > -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To post to this group, send email to sage-support@googlegroups.com. Visit this group at https://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/d/optout.
