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
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
|
# Copyright (C) Igor Sysoev
# Copyright (C) Nginx, Inc.
# gcc 2.7.2.3, 2.8.1, 2.95.4, egcs-1.1.2
# 3.0.4, 3.1.1, 3.2.3, 3.3.2, 3.3.3, 3.3.4, 3.4.0, 3.4.2
# 4.0.0, 4.0.1, 4.1.0
NGX_GCC_VER=`$CC -v 2>&1 | grep 'gcc version' 2>&1 \
| sed -e 's/^.* version \(.*\)/\1/'`
echo " + gcc version: $NGX_GCC_VER"
have=NGX_COMPILER value="\"gcc $NGX_GCC_VER\"" . auto/define
# Solaris 7's /usr/ccs/bin/as does not support "-pipe"
CC_TEST_FLAGS="-pipe"
ngx_feature="gcc -pipe switch"
ngx_feature_name=
ngx_feature_run=no
ngx_feature_incs=
ngx_feature_path=
ngx_feature_libs=
ngx_feature_test=
. auto/feature
CC_TEST_FLAGS=
if [ $ngx_found = yes ]; then
PIPE="-pipe"
fi
case "$NGX_MACHINE" in
sun4u | sun4v | sparc | sparc64 )
# "-mcpu=v9" enables the "casa" assembler instruction
CFLAGS="$CFLAGS -mcpu=v9"
;;
esac
# optimizations
#NGX_GCC_OPT="-O2"
#NGX_GCC_OPT="-Os"
NGX_GCC_OPT="-O"
#CFLAGS="$CFLAGS -fomit-frame-pointer"
case $CPU in
pentium)
# optimize for Pentium and Athlon
CPU_OPT="-march=pentium"
NGX_CPU_CACHE_LINE=32
;;
pentiumpro | pentium3)
# optimize for Pentium Pro, Pentium II and Pentium III
CPU_OPT="-march=pentiumpro"
NGX_CPU_CACHE_LINE=32
;;
pentium4)
# optimize for Pentium 4, gcc 3.x
CPU_OPT="-march=pentium4"
NGX_CPU_CACHE_LINE=128
;;
athlon)
# optimize for Athlon, gcc 3.x
CPU_OPT="-march=athlon"
NGX_CPU_CACHE_LINE=64
;;
opteron)
# optimize for Opteron, gcc 3.x
CPU_OPT="-march=opteron"
NGX_CPU_CACHE_LINE=64
;;
sparc32)
# build 32-bit UltraSparc binary
CPU_OPT="-m32"
CORE_LINK="$CORE_LINK -m32"
NGX_CPU_CACHE_LINE=64
;;
sparc64)
# build 64-bit UltraSparc binary
CPU_OPT="-m64"
CORE_LINK="$CORE_LINK -m64"
NGX_CPU_CACHE_LINE=64
;;
ppc64)
# build 64-bit PowerPC binary
CPU_OPT="-m64"
CPU_OPT="$CPU_OPT -falign-functions=32 -falign-labels=32"
CPU_OPT="$CPU_OPT -falign-loops=32 -falign-jumps=32"
CORE_LINK="$CORE_LINK -m64"
NGX_CPU_CACHE_LINE=128
;;
esac
CC_AUX_FLAGS="$CC_AUX_FLAGS $CPU_OPT"
case "$NGX_GCC_VER" in
2.7*)
# batch build
CPU_OPT=
;;
esac
CFLAGS="$CFLAGS $PIPE $CPU_OPT"
if [ ".$PCRE_OPT" = "." ]; then
PCRE_OPT="-O2 -fomit-frame-pointer $PIPE $CPU_OPT"
else
PCRE_OPT="$PCRE_OPT $PIPE"
fi
if [ ".$ZLIB_OPT" = "." ]; then
ZLIB_OPT="-O2 -fomit-frame-pointer $PIPE $CPU_OPT"
else
ZLIB_OPT="$ZLIB_OPT $PIPE"
fi
# warnings
# -W requires at least -O
CFLAGS="$CFLAGS ${NGX_GCC_OPT:--O} -W"
CFLAGS="$CFLAGS -Wall -Wpointer-arith"
#CFLAGS="$CFLAGS -Wconversion"
#CFLAGS="$CFLAGS -Winline"
#CFLAGS="$CFLAGS -Wmissing-prototypes"
case "$NGX_GCC_VER" in
2.*)
# we have a lot of the unused function arguments
CFLAGS="$CFLAGS -Wno-unused"
;;
*)
# we have a lot of the unused function arguments
CFLAGS="$CFLAGS -Wno-unused-parameter"
# 4.2.1 shows the warning in wrong places
#CFLAGS="$CFLAGS -Wunreachable-code"
# deprecated system OpenSSL library on OS X
if [ "$NGX_SYSTEM" = "Darwin" ]; then
CFLAGS="$CFLAGS -Wno-deprecated-declarations"
fi
;;
esac
# stop on warning
CFLAGS="$CFLAGS -Werror"
# debug
CFLAGS="$CFLAGS -g"
# DragonFly's gcc3 generates DWARF
#CFLAGS="$CFLAGS -g -gstabs"
if [ ".$CPP" = "." ]; then
CPP="$CC -E"
fi
|
