Hi, On 2018-08-16 04:18:59 -0700, Andres Freund wrote: > Besides gaur, I'm also awaiting casteroides' results. The latter > definitely does support C99, but I'm not sure autconf pushes hard > enough. I think every other relevant animal has reported back.
Casteroides wasn't a problem, -D_STDC_C99= does the trick. But enabling C99 support triggered a somewhat weird failure on protosciurus (also solaris, but gcc) https://buildfarm.postgresql.org/cgi-bin/show_log.pl?nm=protosciurus&dt=2018-08-16%2013%3A37%3A46 It detects C99 support successfully via -std=gnu99 but then fails somewhere during build with: gcc -std=gnu99 -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Wendif-labels -Wmissing-format-attribute -Wformat-security -fno-strict-aliasing -fwrapv -Wno-unused-command-line-argument -g -I/usr/local/include -m64 -I../../../../src/include -c -o gistutil.o gistutil.c In file included from gistutil.c:24: ../../../../src/include/utils/float.h: In function `get_float4_infinity': ../../../../src/include/utils/float.h:71: error: `__builtin_infinity' undeclared (first use in this function) ../../../../src/include/utils/float.h:71: error: (Each undeclared identifier is reported only once ../../../../src/include/utils/float.h:71: error: for each function it appears in.) ../../../../src/include/utils/float.h: In function `get_float8_infinity': ../../../../src/include/utils/float.h:91: error: `__builtin_infinity' undeclared (first use in this function) ../../../../src/include/utils/float.h: In function `get_float4_nan': ../../../../src/include/utils/float.h:108: error: pointer value used where a floating point value was expected ../../../../src/include/utils/float.h: In function `get_float8_nan': ../../../../src/include/utils/float.h:121: error: pointer value used where a floating point value was expected ../../../../src/include/utils/float.h: In function `check_float4_val': ../../../../src/include/utils/float.h:136: warning: implicit declaration of function `__builtin_isinf' ../../../../src/include/utils/float.h: In function `float4_eq': ../../../../src/include/utils/float.h:283: warning: implicit declaration of function `__builtin_isnan' While I'd personally have no problem kicking gcc 3.4 to the curb, I'm still confused what causes this error mode. Kinda looks like out-of-sync headers with gcc or something. Greetings, Andres Freund
