1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
|
# Looking in libc for some functions.
exe=$osname-$arch-tmp$$$exe_suff
_has_list=
echo Looking in C lib for some symbols...
extra_flags=-lm
if test "$arch" = "x86_64" && test "$sizeof_long" = "8"; then
list=sse2; . ./look
list=avx; . ./look
fi
if test "$arch" = "aarch64" && test "$sizeof_long" = "8"; then
list=neon; . ./look
fi
list=exp2; . ./look
list=log2; . ./look
list=rint; . ./look
extra_flags=
list=strftime; . ./look
if test "$timing_fun" = "clock_gettime"; then
list=clock_gettime; . ./look
if test "$has_clock_gettime" = no; then
echo "Try again, with -lrt this time..."
extra_flags=-lrt
list=clock_gettime; . ./look
extra_flags=
if test "$has_clock_gettime" = yes; then
RT_LIBS=-lrt
fi
fi
else
if test -n "$timing_fun"; then
list=$timing_fun
else
case "$osname" in
*cygwin*) list='times';; # getrusage based timer always returns 0
*) list='getrusage times';;
esac;
fi; . ./look
fi
if test "$has_clock_gettime" = yes -o "$has_ftime" = yes; then
:
else
list='gettimeofday ftime'; . ./look
if test "$has_ftime" = yes; then
has_ftimeforwalltime=yes
unset has_ftime
fi
fi
list=sigaction; . ./look
list=TIOCGWINSZ; . ./look
list=getrlimit; . ./look
list='stat opendir'; . ./look
list=vsnprintf; . ./look
if test "$enable_mmap" = "no"; then
has_mmap=no
else
list=mmap; . ./look
fi
list=waitpid; . ./look
list=setsid; . ./look
list=getenv; . ./look
list=isatty; . ./look
list=alarm; . ./look
list=system; . ./look
# For install(). Do we need libdl.so?
# on irix and osf1 -ldl not needed
extra_flags=
DL_LIBS=
list=dlopen; . ./look
if test "$has_dlopen" = no; then
echo "Try again, with -ldl this time..."
extra_flags=-ldl; . ./look
if test "$has_dlopen" = yes; then
DL_LIBS=-ldl
fi
fi
if test "$has_dlopen" = no; then
case "$osname" in
os2|darwin)
echo "Will use builtin dlopen() support for $osname..."
has_dlopen=builtin
esac
fi
|
