build: configure script warnings on macOS #896
Description
Configuring the recent master branch (24d1656) on macOS Big Sur 11.2.1 (20D74), and receiving 4 messages rm: conftest.dSYM: is a directory:
% ./configure -q
rm: conftest.dSYM: is a directory
rm: conftest.dSYM: is a directory
rm: conftest.dSYM: is a directory
rm: conftest.dSYM: is a directory
Build Options:
with ecmult precomp = yes
with external callbacks = no
with benchmarks = yes
with tests = yes
with openssl tests = yes
with coverage = no
module ecdh = no
module recovery = no
module extrakeys = no
module schnorrsig = no
asm = x86_64
bignum = no
ecmult window size = 15
ecmult gen prec. bits = 4
valgrind = no
CC = gcc
CFLAGS = -O2 -fvisibility=hidden -std=c89 -pedantic -Wall -Wextra -Wcast-align -Wnested-externs -Wshadow -Wstrict-prototypes -Wundef -Wno-unused-function -Wno-long-long -Wno-overlength-strings -W -g
CPPFLAGS = -I/usr/local/Cellar/valgrind/3.16.1/include
LDFLAGS =
CC_FOR_BUILD = gcc
CFLAGS_FOR_BUILD = -O2 -fvisibility=hidden -std=c89 -pedantic -Wall -Wextra -Wcast-align -Wnested-externs -Wshadow -Wstrict-prototypes -Wundef -Wno-unused-function -Wno-long-long -Wno-overlength-strings -W -g
CPPFLAGS_FOR_BUILD = -I/usr/local/Cellar/valgrind/3.16.1/include
LDFLAGS_FOR_BUILD =
Detailed:
% ./configure
...
checking whether gcc understands -c and -o together... rm: conftest.dSYM: is a directory
yes
...
checking the name lister (/usr/bin/nm -B) interface... rm: conftest.dSYM: is a directory
BSD nm
...
checking for archiver @FILE support... rm: conftest.dSYM: is a directory
no
...
checking command to parse /usr/bin/nm -B output from gcc object... rm: conftest.dSYM: is a directory
ok
...