Hi Ian, Thank you so much for the help. Both of those options did not work. Somehow, the program was able to get buggy libmpfr. I think it might be because I am using /usr/ccs/bin/ld and that ld is giving preference to libraries in /usr/lib. In my case, /usr/lib/libmpc.so.3 pointed to /opt/csw/lib/libmpc.so.3 and that is how it was reaching to the buggy libmpfr. I changed the symlink for mpc/mpfr/gmp libs to point to the libs I have installed and it worked.
On Saturday, August 25, 2018 at 10:25:39 AM UTC-7, Ian Lance Taylor wrote: > > On Fri, Aug 24, 2018 at 11:48 PM, Amandeep Gautam > <amandee...@gmail.com <javascript:>> wrote: > > Hi Ian, > > I compiled GMP, MPFR and MPC from source. Next, I configured gcc with > > modified options: > > > > $srcdir/configure \ > > --prefix=$prefix \ > > --enable-languages=go \ > > --with-as=/opt/csw/gnu/as --with-gnu-as \ > > --with-ld=/usr/ccs/bin/ld --without-gnu-ld \ > > --with-gmp-include=/usr/gnu/gmp/include > --with-gmp-lib=/usr/gnu/gmp/lib > > \ > > --with-mpfr=/usr/gnu/mpfr --with-mpfr-include=/usr/gnu/mpfr/include > > --with-mpfr-lib=/usr/gnu/mpfr/lib \ > > --with-mpc=/usr/gnu/mpc \ > > --with-isl=/opt/csw --with-isl-include=/opt/csw/include > > --with-isl-lib=/opt/csw/lib \ > > --with-build-time-tools=/opt/csw/gnu \ > > --enable-multilib \ > > --enable-shared \ > > --enable-static \ > > --disable-nls \ > > --disable-libquadmath \ > > --disable-libssp \ > > --disable-lto \ > > --disable-libgomp > > > > The make step is still failing but, to my surprise, I found that it is > still > > able to find libmpfr.so.4 from the /opt/csw directory. I am guessing > that I > > am not configuring something correctly. Can you please look. > > Maybe you need to set LD_LIBRARY_PATH to point to your newly built > libmpfr? > > Another approach is to copy the mpfr sources into your GCC directory, > named exactly mpfr. Then the GCC build will automatically use that > one. > > Ian > > > > > > Output from GBD: > > > > -bash-3.2$ gdb /export/home/amandeep/gccgo-obj/./gcc/go1 > > GNU gdb (GDB) 7.7 > > Copyright (C) 2014 Free Software Foundation, Inc. > > License GPLv3+: GNU GPL version 3 or later > > <http://gnu.org/licenses/gpl.html> > > This is free software: you are free to change and redistribute it. > > There is NO WARRANTY, to the extent permitted by law. Type "show > copying" > > and "show warranty" for details. > > This GDB was configured as "sparc-sun-solaris2.10". > > Type "show configuration" for configuration details. > > For bug reporting instructions, please see: > > <http://www.gnu.org/software/gdb/bugs/>. > > Find the GDB manual and other documentation resources online at: > > <http://www.gnu.org/software/gdb/documentation/>. > > For help, type "help". > > Type "apropos word" to search for commands related to "word"... > > Reading symbols from /export/home/amandeep/gccgo-obj/./gcc/go1...done. > > (gdb) run /export/home/amandeep/gccgo-src/libgo/go/fmt/doc.go > > /export/home/amandeep/gccgo-src/libgo/go/fmt/format.go > > /export/home/amandeep/gccgo-src/libgo/go/fmt/print.go > > /export/home/amandeep/gccgo-src/libgo/go/fmt/scan.go -quiet -dumpbase > doc.go > > -mcpu=v9 -auxbase-strip .libs/fmt.o -g -O2 -version -fgo-pkgpath=fmt > -fPIC > > -I . -L/export/home/amandeep/gccgo-obj/./gcc -o /var/tmp//ccBuuCrV. > > Starting program: /export/home/amandeep/gccgo-obj/gcc/go1 > > /export/home/amandeep/gccgo-src/libgo/go/fmt/doc.go > > /export/home/amandeep/gccgo-src/libgo/go/fmt/format.go > > /export/home/amandeep/gccgo-src/libgo/go/fmt/print.go > > /export/home/amandeep/gccgo-src/libgo/go/fmt/scan.go -quiet -dumpbase > doc.go > > -mcpu=v9 -auxbase-strip .libs/fmt.o -g -O2 -version -fgo-pkgpath=fmt > -fPIC > > -I . -L/export/home/amandeep/gccgo-obj/./gcc -o /var/tmp//ccBuuCrV. > > [Thread debugging using libthread_db enabled] > > [New Thread 1 (LWP 1)] > > GNU Go (GCC) version 8.2.1 20180814 (sparc-sun-solaris2.10) > > compiled by GNU C version 8.2.1 20180814, GMP version 6.1.2, > MPFR > > version 4.0.1-p13, MPC version 1.1.0, isl version csw-0.18-GMP > > > > warning: MPFR header version 4.0.1-p13 differs from library version > 4.0.0. > > warning: MPC header version 1.1.0 differs from library version 1.0.2. > > GGC heuristics: --param ggc-min-expand=100 --param > ggc-min-heapsize=131072 > > GNU Go (GCC) version 8.2.1 20180814 (sparc-sun-solaris2.10) > > compiled by GNU C version 8.2.1 20180814, GMP version 6.1.2, > MPFR > > version 4.0.1-p13, MPC version 1.1.0, isl version csw-0.18-GMP > > > > warning: MPFR header version 4.0.1-p13 differs from library version > 4.0.0. > > warning: MPC header version 1.1.0 differs from library version 1.0.2. > > GGC heuristics: --param ggc-min-expand=100 --param > ggc-min-heapsize=131072 > > /export/home/amandeep/gccgo-src/libgo/go/fmt/format.go:8:9: error: > import > > file 'strconv' not found > > "strconv" > > ^ > > /export/home/amandeep/gccgo-src/libgo/go/fmt/format.go:9:14: error: > import > > file 'unicode/utf8' not found > > "unicode/utf8" > > ^ > > ... and many more like this before terminating... > > > > /export/home/amandeep/gccgo-src/libgo/go/fmt/scan.go:688:52: error: > expected > > integer, floating, complex, or string type > > s.errorString("unsigned integer overflow on token " + tok) > > ^ > > > > Program received signal SIGSEGV, Segmentation fault. > > [Switching to Thread 1 (LWP 1)] > > 0xfbb8df24 in mpfr_init2 () from /opt/csw/lib/sparcv8/libmpfr.so.4 > > (gdb) bt > > #0 0xfbb8df24 in mpfr_init2 () from /opt/csw/lib/sparcv8/libmpfr.so.4 > > #1 0xff1d8bac in mpc_init2 () from /usr/lib/libmpc.so.3 > > #2 0x001c5500 in Numeric_constant::check_complex_type (this=0xffbff208, > > type=0x10944c8, issue_error=<optimized out>, location=...) > > at > > /export/home/amandeep/gccgo-src/gcc/go/gofrontend/expressions.cc:16745 > > #3 0x001c588c in Numeric_constant::set_type (this=0xffbff208, > > type=0x11f4f78, issue_error=<optimized out>, loc=...) at > > /export/home/amandeep/gccgo-src/gcc/go/gofrontend/types.h:751 > > #4 0x001c5944 in Integer_expression::do_check_types (this=0x11f50e0) at > > /export/home/amandeep/gccgo-src/gcc/go/gofrontend/expressions.h:535 > > #5 0x001e7d04 in check_types (gogo=<optimized out>, this=<optimized > out>) > > at /export/home/amandeep/gccgo-src/gcc/go/gofrontend/expressions.h:920 > > #6 Check_types_traverse::expression (this=<optimized out>, > expr=0x123bac8) > > at /export/home/amandeep/gccgo-src/gcc/go/gofrontend/gogo.cc:3306 > > #7 0x001b3fc8 in Expression::traverse (pexpr=0x123bac8, > > traverse=0xffbff7f4) at > > /export/home/amandeep/gccgo-src/gcc/go/gofrontend/expressions.cc:45 > > #8 0x0022eb8c in Statement::traverse (this=0x123bab8, block=0x123c168, > > pindex=0xffbff3b4, traverse=0xffbff7f4) at > > /export/home/amandeep/gccgo-src/gcc/go/gofrontend/statements.cc:54 > > #9 0x001ea9f0 in Block::traverse (this=0x123c168, traverse=0xffbff7f4) > at > > /export/home/amandeep/gccgo-src/gcc/go/gofrontend/gogo.cc:6063 > > #10 0x0022eb8c in Statement::traverse (this=0x123bad8, block=0x11f50b8, > > pindex=0xffbff47c, traverse=0xffbff7f4) at > > /export/home/amandeep/gccgo-src/gcc/go/gofrontend/statements.cc:54 > > #11 0x001ea9f0 in Block::traverse (this=0x11f50b8, traverse=0xffbff7f4) > at > > /export/home/amandeep/gccgo-src/gcc/go/gofrontend/gogo.cc:6063 > > #12 0x0022df60 in If_statement::do_traverse (this=0x11f63b0, > > traverse=0xffbff7f4) at > > /export/home/amandeep/gccgo-src/gcc/go/gofrontend/statements.cc:84 > > #13 0x0022eb8c in Statement::traverse (this=0x11f63b0, block=0x11f5068, > > pindex=0xffbff5a4, traverse=0xffbff7f4) at > > /export/home/amandeep/gccgo-src/gcc/go/gofrontend/statements.cc:54 > > #14 0x001ea9f0 in Block::traverse (this=0x11f5068, traverse=0xffbff7f4) > at > > /export/home/amandeep/gccgo-src/gcc/go/gofrontend/gogo.cc:6063 > > #15 0x0022eb8c in Statement::traverse (this=0x11f63d0, block=0x11f4fa0, > > pindex=0xffbff66c, traverse=0xffbff7f4) at > > /export/home/amandeep/gccgo-src/gcc/go/gofrontend/statements.cc:54 > > #16 0x001ea9f0 in Block::traverse (this=0x11f4fa0, traverse=0xffbff7f4) > at > > /export/home/amandeep/gccgo-src/gcc/go/gofrontend/gogo.cc:6063 > > #17 0x001eac80 in Function::traverse (this=0x11f6ac8, > traverse=0xffbff7f4) > > at /export/home/amandeep/gccgo-src/gcc/go/gofrontend/gogo.cc:5135 > > #18 0x001ec6f0 in Bindings::traverse (this=0x10b4fa0, > traverse=0xffbff7f4, > > is_global=<optimized out>) at > > /export/home/amandeep/gccgo-src/gcc/go/gofrontend/gogo.h:2584 > > #19 0x001eca38 in Gogo::traverse (this=0x10f0438, traverse=0xffbff7f4) > at > > /export/home/amandeep/gccgo-src/gcc/go/gofrontend/gogo.h:3200 > > #20 0x001ecd2c in Gogo::check_types (this=0x10f0438) at > > /export/home/amandeep/gccgo-src/gcc/go/gofrontend/gogo.cc:3316 > > #21 0x001e7700 in go_parse_input_files (filenames=0x10cf4a8, > > filename_count=4, only_check_syntax=<optimized out>) at > > /export/home/amandeep/gccgo-src/gcc/go/gofrontend/go.cc:136 > > #22 0x001e2480 in go_langhook_parse_file () at > > /export/home/amandeep/gccgo-src/gcc/go/go-lang.c:329 > > #23 0x006b97d4 in compile_file () at > > /export/home/amandeep/gccgo-src/gcc/toplev.c:455 > > #24 0x00e1ca24 in toplev::main(int, char**) () at > ./insn-modes-inline.h:38 > > #25 0x00e1e214 in main (argc=21, argv=0xffbffb64) at > > /export/home/amandeep/gccgo-src/gcc/main.c:39 > > > > Also running the go1 program on the prompt also gives segmentation > fault: > > > > -bash-3.2$ /export/home/amandeep/gccgo-obj/./gcc/go1 > > go1: internal compiler error: in go_langhook_post_options, at > > go/go-lang.c:289 > > 0x1e5857 go_langhook_post_options > > /export/home/amandeep/gccgo-src/gcc/go/go-lang.c:289 > > Please submit a full bug report, > > with preprocessed source if appropriate. > > Please include the complete backtrace with any bug report. > > See <https://gcc.gnu.org/bugs/> for instructions. > > > > On Thursday, August 23, 2018 at 2:54:56 PM UTC-7, Amandeep Gautam wrote: > >> > >> Running inside the gdb worked. Seems like a problem with libmpfr. Will > try > >> compiling it from source. > >> Following is the end of the GDB output: > >> > >> /export/home/amandeep/gccgo-src/libgo/go/fmt/scan.go:658:43: error: > >> expected integer, floating, complex, or string type > >> s.errorString("integer overflow on token " + tok) > >> ^ > >> /export/home/amandeep/gccgo-src/libgo/go/fmt/scan.go:688:52: error: > >> expected integer, floating, complex, or string type > >> s.errorString("unsigned integer overflow on token " + tok) > >> ^ > >> > >> Program received signal SIGSEGV, Segmentation fault. > >> [Switching to Thread 1 (LWP 1)] > >> 0xfbb8df24 in mpfr_init2 () from /opt/csw/lib/sparcv8/libmpfr.so.4 > >> (gdb) bt > >> #0 0xfbb8df24 in mpfr_init2 () from /opt/csw/lib/sparcv8/libmpfr.so.4 > >> #1 0xff1d8bac in mpc_init2 () from /usr/lib/libmpc.so.3 > >> #2 0x001c5500 in Numeric_constant::check_complex_type > (this=0xffbff0e8, > >> type=0x1094488, issue_error=<optimized out>, location=...) > >> at > >> /export/home/amandeep/gccgo-src/gcc/go/gofrontend/expressions.cc:16745 > >> #3 0x001c588c in Numeric_constant::set_type (this=0xffbff0e8, > >> type=0x11f4f38, issue_error=<optimized out>, loc=...) > >> at /export/home/amandeep/gccgo-src/gcc/go/gofrontend/types.h:751 > >> #4 0x001c5944 in Integer_expression::do_check_types (this=0x11f50a0) > at > >> /export/home/amandeep/gccgo-src/gcc/go/gofrontend/expressions.h:535 > >> #5 0x001e7d04 in check_types (gogo=<optimized out>, this=<optimized > out>) > >> at /export/home/amandeep/gccgo-src/gcc/go/gofrontend/expressions.h:920 > >> #6 Check_types_traverse::expression (this=<optimized out>, > >> expr=0x123ba88) at > >> /export/home/amandeep/gccgo-src/gcc/go/gofrontend/gogo.cc:3306 > >> #7 0x001b3fc8 in Expression::traverse (pexpr=0x123ba88, > >> traverse=0xffbff6d4) at > >> /export/home/amandeep/gccgo-src/gcc/go/gofrontend/expressions.cc:45 > >> #8 0x0022eb8c in Statement::traverse (this=0x123ba78, block=0x123c128, > >> pindex=0xffbff294, traverse=0xffbff6d4) > >> at > /export/home/amandeep/gccgo-src/gcc/go/gofrontend/statements.cc:54 > >> #9 0x001ea9f0 in Block::traverse (this=0x123c128, traverse=0xffbff6d4) > at > >> /export/home/amandeep/gccgo-src/gcc/go/gofrontend/gogo.cc:6063 > >> #10 0x0022eb8c in Statement::traverse (this=0x123ba98, block=0x11f5078, > >> pindex=0xffbff35c, traverse=0xffbff6d4) > >> at > /export/home/amandeep/gccgo-src/gcc/go/gofrontend/statements.cc:54 > >> #11 0x001ea9f0 in Block::traverse (this=0x11f5078, traverse=0xffbff6d4) > at > >> /export/home/amandeep/gccgo-src/gcc/go/gofrontend/gogo.cc:6063 > >> #12 0x0022df60 in If_statement::do_traverse (this=0x11f6370, > >> traverse=0xffbff6d4) at > >> /export/home/amandeep/gccgo-src/gcc/go/gofrontend/statements.cc:84 > >> #13 0x0022eb8c in Statement::traverse (this=0x11f6370, block=0x11f5028, > >> pindex=0xffbff484, traverse=0xffbff6d4) > >> at > /export/home/amandeep/gccgo-src/gcc/go/gofrontend/statements.cc:54 > >> #14 0x001ea9f0 in Block::traverse (this=0x11f5028, traverse=0xffbff6d4) > at > >> /export/home/amandeep/gccgo-src/gcc/go/gofrontend/gogo.cc:6063 > >> #15 0x0022eb8c in Statement::traverse (this=0x11f6390, block=0x11f4f60, > >> pindex=0xffbff54c, traverse=0xffbff6d4) > >> at > /export/home/amandeep/gccgo-src/gcc/go/gofrontend/statements.cc:54 > >> #16 0x001ea9f0 in Block::traverse (this=0x11f4f60, traverse=0xffbff6d4) > at > >> /export/home/amandeep/gccgo-src/gcc/go/gofrontend/gogo.cc:6063 > >> #17 0x001eac80 in Function::traverse (this=0x11f6a88, > traverse=0xffbff6d4) > >> at /export/home/amandeep/gccgo-src/gcc/go/gofrontend/gogo.cc:5135 > >> #18 0x001ec6f0 in Bindings::traverse (this=0x10b4f60, > traverse=0xffbff6d4, > >> is_global=<optimized out>) at > >> /export/home/amandeep/gccgo-src/gcc/go/gofrontend/gogo.h:2584 > >> #19 0x001eca38 in Gogo::traverse (this=0x10f03f8, traverse=0xffbff6d4) > at > >> /export/home/amandeep/gccgo-src/gcc/go/gofrontend/gogo.h:3200 > >> #20 0x001ecd2c in Gogo::check_types (this=0x10f03f8) at > >> /export/home/amandeep/gccgo-src/gcc/go/gofrontend/gogo.cc:3316 > >> #21 0x001e7700 in go_parse_input_files (filenames=0x10cf468, > >> filename_count=4, only_check_syntax=<optimized out>) > >> at /export/home/amandeep/gccgo-src/gcc/go/gofrontend/go.cc:136 > >> #22 0x001e2480 in go_langhook_parse_file () at > >> /export/home/amandeep/gccgo-src/gcc/go/go-lang.c:329 > >> #23 0x006b97d4 in compile_file () at > >> /export/home/amandeep/gccgo-src/gcc/toplev.c:455 > >> #24 0x00e1c9f4 in toplev::main(int, char**) () at > ./insn-modes-inline.h:38 > >> #25 0x00e1e1e4 in main (argc=21, argv=0xffbffa44) at > >> /export/home/amandeep/gccgo-src/gcc/main.c:39 > >> > >> On Thursday, August 23, 2018 at 2:25:38 PM UTC-7, Ian Lance Taylor > wrote: > >>> > >>> On Thu, Aug 23, 2018 at 2:14 PM, Amandeep Gautam > >>> <amandee...@gmail.com> wrote: > >>> > > >>> > /export/home/amandeep/gccgo-obj/./gcc/go1 > >>> > /export/home/amandeep/gccgo-src/libgo/go/fmt/doc.go > >>> > /export/home/amandeep/gccgo-src/libgo/go/fmt/format.go > >>> > /export/home/amandeep/gccgo-src/libgo/go/fmt/print.go > >>> > /export/home/amandeep/gccgo-src/libgo/go/fmt/scan.go -quiet > -dumpbase > >>> > doc.go > >>> > -mcpu=v9 -auxbase-strip .libs/fmt.o -g -O2 -version -fgo-pkgpath=fmt > >>> > -fPIC > >>> > -I . -L/export/home/amandeep/gccgo-obj/./gcc -o /var/tmp//ccmxS20e.s > >>> > > >>> > and I got: > >>> > > >>> > GNU Go (GCC) version 8.2.1 20180814 (sparc-sun-solaris2.10) > >>> > compiled by GNU C version 8.2.1 20180814, GMP version 6.1.2, > >>> > MPFR > >>> > version 4.0.0, MPC version 1.0.2, isl version csw-0.18-GMP > >>> > > >>> > GGC heuristics: --param ggc-min-expand=100 --param > >>> > ggc-min-heapsize=131072 > >>> > GNU Go (GCC) version 8.2.1 20180814 (sparc-sun-solaris2.10) > >>> > compiled by GNU C version 8.2.1 20180814, GMP version 6.1.2, > >>> > MPFR > >>> > version 4.0.0, MPC version 1.0.2, isl version csw-0.18-GMP > >>> > > >>> > GGC heuristics: --param ggc-min-expand=100 --param > >>> > ggc-min-heapsize=131072 > >>> > /export/home/amandeep/gccgo-src/libgo/go/fmt/format.go:8:9: error: > >>> > import > >>> > file 'strconv' not found > >>> > "strconv" > >>> > ^ > >>> > /export/home/amandeep/gccgo-src/libgo/go/fmt/format.go:9:14: error: > >>> > import > >>> > file 'unicode/utf8' not found > >>> > "unicode/utf8" > >>> > ^ > >>> > ... and many more before ending into ... > >>> > > >>> > /export/home/amandeep/gccgo-src/libgo/go/fmt/scan.go:688:52: error: > >>> > expected > >>> > integer, floating, complex, or string type > >>> > s.errorString("unsigned integer overflow on token " + tok) > >>> > ^ > >>> > Segmentation Fault (core dumped) > >>> > > >>> > I tried analyzing the core dumped. so I did: gdb > >>> > /export/home/amandeep/gccgo-obj/./gcc/go1 ./core and below is how > the > >>> > promt > >>> > looks: > >>> > > >>> > GNU gdb (GDB) 7.7 > >>> > Copyright (C) 2014 Free Software Foundation, Inc. > >>> > License GPLv3+: GNU GPL version 3 or later > >>> > <http://gnu.org/licenses/gpl.html> > >>> > This is free software: you are free to change and redistribute it. > >>> > There is NO WARRANTY, to the extent permitted by law. Type "show > >>> > copying" > >>> > and "show warranty" for details. > >>> > This GDB was configured as "sparc-sun-solaris2.10". > >>> > Type "show configuration" for configuration details. > >>> > For bug reporting instructions, please see: > >>> > <http://www.gnu.org/software/gdb/bugs/>. > >>> > Find the GDB manual and other documentation resources online at: > >>> > <http://www.gnu.org/software/gdb/documentation/>. > >>> > For help, type "help". > >>> > Type "apropos word" to search for commands related to "word"... > >>> > Reading symbols from > /export/home/amandeep/gccgo-obj/./gcc/go1...done. > >>> > > >>> > warning: Couldn't find general-purpose registers in core file. > >>> > > >>> > warning: Wrong size fpregset in core file. > >>> > [Thread debugging using libthread_db enabled] > >>> > [New Thread 1 (LWP 1)] > >>> > > >>> > warning: Couldn't find general-purpose registers in core file. > >>> > > >>> > warning: Couldn't find general-purpose registers in core file. > >>> > Error in re-setting breakpoint -1: PC register is not available > >>> > Error in re-setting breakpoint -2: PC register is not available > >>> > Error in re-setting breakpoint -3: PC register is not available > >>> > Error in re-setting breakpoint -4: PC register is not available > >>> > Error in re-setting breakpoint -5: PC register is not available > >>> > Core was generated by `/export/home/amandeep/gccgo-obj/./gcc/go1 > >>> > /export/home/amandeep/gccgo-src/libgo'. > >>> > > >>> > warning: Couldn't find general-purpose registers in core file. > >>> > > >>> > warning: Wrong size fpregset in core file. > >>> > PC not available > >>> > #-1 <unavailable> in ?? () > >>> > (gdb) bt > >>> > #-1 <unavailable> in ?? () > >>> > #0 <unavailable> in ?? () > >>> > frame.c:472: internal-error: get_frame_id: Assertion `fi->this_id.p' > >>> > failed. > >>> > A problem internal to GDB has been detected, > >>> > further debugging may prove unreliable. > >>> > Quit this debugging session? (y or n) n > >>> > frame.c:472: internal-error: get_frame_id: Assertion `fi->this_id.p' > >>> > failed. > >>> > A problem internal to GDB has been detected, > >>> > further debugging may prove unreliable. > >>> > Create a core file of GDB? (y or n) y > >>> > Command aborted. > >>> > > >>> > Have I steps mentioned correctly? Any suggestions on the next steps? > >>> > >>> There is something badly wrong with your gdb. Unfortunately I can't > >>> help you with that. I have not seen that behavior before. > >>> > >>> I guess you could hope that the problem is only with the core file, > >>> and run the program inside gdb rather than trying to look at the core. > >>> > >>> Ian > > > > -- > > You received this message because you are subscribed to the Google > Groups > > "golang-nuts" group. > > To unsubscribe from this group and stop receiving emails from it, send > an > > email to golang-nuts...@googlegroups.com <javascript:>. > > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
