We didn’t test clang 3.7 which is what your machine is using at OS X 10.11.
But I recognised the error as one I got in the same place when I tried a build
with icc on linux. Yes that’s a fun bit I haven’t mentioned yet.
You can technically try any compiler that pretends to be gcc - but only clang 
3.8
forward have been tested and I haven’t put in place bits for dealing with icc’s 
fun
issues (over optimisation from icc kills pari).
sqlite wants to use some builtins that are in gcc but identifies the compiler 
supporting
the builtins by a series of pragma. Always risky and a bit porous in this case.

François

> On 10/02/2018, at 12:07, Justin C. Walker <jus...@mac.com> wrote:
> 
> 
>> On Feb 9, 2018, at 00:25 , Volker Braun <vbraun.n...@gmail.com> wrote:
>> 
>> As always, you can get the latest beta version from the "develop" git 
>> branch. Alternatively, the self-contained source tarball is at 
>> http://www.sagemath.org/download-latest.html
> 
> Yay for using clang!
> 
> Built from a fresh clone/checkout of the develop tree.
> 
> The build (macOS 10.11.6, MBP Quad-core Core i7) blows chunks on sqlite:
> 
> ==========================
> libtool: compile:  gcc -DPACKAGE_NAME=\"sqlite\" -DPACKAGE_TARNAME=\"sqlite\" 
> -DPACKAGE_VERSION=\"3.17.0\" "-DPACKAGE_STRING=\"sqlite 3.17.0\
> \"" -DPACKAGE_BUGREPORT=\"http://www.sqlite.org\"; -DPACKAGE_URL=\"\" 
> -DPACKAGE=\"sqlite\" -DVERSION=\"3.17.0\" -DSTDC_HEADERS=1 -DHAVE_SYS_T\
> YPES_H=1 -DHAVE_SYS_STAT_H=1 -DHAVE_STDLIB_H=1 -DHAVE_STRING_H=1 
> -DHAVE_MEMORY_H=1 -DHAVE_STRINGS_H=1 -DHAVE_INTTYPES_H=1 -DHAVE_STDINT_H=1 \
> -DHAVE_UNISTD_H=1 -DHAVE_DLFCN_H=1 -DLT_OBJDIR=\".libs/\" -DHAVE_FDATASYNC=1 
> -DHAVE_USLEEP=1 -DHAVE_LOCALTIME_R=1 -DHAVE_GMTIME_R=1 -DHAVE_D\
> ECL_STRERROR_R=1 -DHAVE_STRERROR_R=1 -DHAVE_EDITLINE_READLINE_H=1 
> -DHAVE_EDITLINE=1 -I. -I/Users/Sage/sage-8.2.beta5/local/include -D_REENTR\
> ANT=1 -DSQLITE_THREADSAFE=1 -DSQLITE_ENABLE_FTS3 -DSQLITE_ENABLE_RTREE -g -O2 
> -MT sqlite3.lo -MD -MP -MF .deps/sqlite3.Tpo -c sqlite3.c  -fn\
> o-common -DPIC -o .libs/sqlite3.o
> sqlite3.c:28836:10: error: use of unknown builtin '__builtin_add_overflow' 
> [-Wimplicit-function-declaration]
>  return __builtin_add_overflow(*pA, iB, pA);
>         ^
> ==========================
> 
> sqlite log attached.
> 
> Justin
> 
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> <sqlite-autoconf-3170000.p0.log>
> 
> --
> Justin C. Walker
> Director
> Institute for the Enhancement of the Director's Income
> --
> Fame is fleeting, but obscurity
>   just drags on and on.      F&E
> 
> 
> 
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