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Add configure checks to find suitable value of _XOPEN_SOURCE

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This commit is contained in:
papadave 2018-01-09 11:26:05 +08:00
parent f832d1dc89
commit 881ccee066
3 changed files with 9 additions and 8 deletions
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11
configure vendored
View File

@ -2,6 +2,7 @@
prefix=/usr/local
OUR_CPPFLAGS=
C99_CFLAGS="-std=c99"
# Get a temporary filename
i=0
@ -42,7 +43,7 @@ check_compile() {
printf "checking %s ... " "$1"
printf "$3" > "$tmpc"
local res=0
$CC $OUR_CPPFLAGS $CPPFLAGS $2 $CFLAGS -c "$tmpc" -o /dev/null >/dev/null 2>&1 \
$CC $OUR_CPPFLAGS $CPPFLAGS $2 $C99_CFLAGS $CFLAGS -c "$tmpc" -o /dev/null >/dev/null 2>&1 \
|| res=1
test x$res = x0 && \
{ printf "yes\n" ; test x"$2" = x || OUR_CPPFLAGS="$OUR_CPPFLAGS $2" ; } \
@ -53,7 +54,7 @@ check_compile() {
check_define() {
printf "checking whether \$CC defines %s ... " "$1"
local res=1
$CC $OUR_CPPFLAGS $CPPFLAGS $CFLAGS -dM -E - </dev/null | grep "$1" >/dev/null && res=0
$CC $OUR_CPPFLAGS $CPPFLAGS $C99_CFLAGS $CFLAGS -dM -E - </dev/null | grep "$1" >/dev/null && res=0
test x$res = x0 && printf "yes\n" || printf "no\n"
return $res
}
@ -62,7 +63,7 @@ check_compile_run() {
printf "checking %s ... " "$1"
printf "$2" > "$tmpc"
local res=0
$CC $OUR_CPPFLAGS $CPPFLAGS $CFLAGS "$tmpc" -o "$tmpc".out >/dev/null 2>&1 \
$CC $OUR_CPPFLAGS $CPPFLAGS $C99_CFLAGS $CFLAGS "$tmpc" -o "$tmpc".out >/dev/null 2>&1 \
|| res=1
test x$res = x0 && { "$tmpc".out || res=1 ; }
rm -f "$tmpc".out
@ -141,6 +142,10 @@ if [ -z "$CC" ] ; then
CC=cc
fi
for i in 700 600; do
check_compile "whether _XOPEN_SOURCE=$i is suitable for C99 mode" "-D_XOPEN_SOURCE=$i" "#include <unistd.h>" && break
done
for i in 16 32; do
check_compile "whether netinet/in.h defines s6_addr$i" "" \
'#include <netinet/in.h>\nint main(int a, char**c){'"struct in6_addr x={.s6_addr$i[0]=a};return x.s6_addr$i[0];"' }' \

1
src/allocator_thread.c
View File

@ -3,7 +3,6 @@
#undef _POSIX_C_SOURCE
#define _POSIX_C_SOURCE 200809L
#define _DARWIN_C_SOURCE
#define _XOPEN_SOURCE 600
#include <limits.h>
#include <pthread.h>
#include <unistd.h>

5
src/main.c
View File

@ -9,10 +9,7 @@
#undef _POSIX_C_SOURCE
#define _POSIX_C_SOURCE 200809L
#undef _XOPEN_SOURCE
#ifdef IS_SOLARIS /* Solaris doesn't recognize this macro greater than 600 */
#define _XOPEN_SOURCE 600
#else
#ifndef _XOPEN_SOURCE
#define _XOPEN_SOURCE 700
#endif
#include <stdio.h>