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
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
|
dnl SMB Build Environment CC Checks
dnl -------------------------------------------------------
dnl Copyright (C) Stefan (metze) Metzmacher 2004
dnl Released under the GNU GPL
dnl -------------------------------------------------------
dnl
# don't let the AC_PROG_CC macro auto set the CFLAGS
OLD_CFLAGS="${CFLAGS}"
AC_PROG_CC
CFLAGS="${OLD_CFLAGS}"
if test x"$CC" = x""; then
AC_MSG_WARN([No c compiler was not found!])
AC_MSG_ERROR([Please Install gcc from http://gcc.gnu.org/])
fi
if test x"$GCC" = x"yes" ; then
AC_MSG_CHECKING([for version of gcc])
GCC_VERSION=`$CC -dumpversion`
AC_MSG_RESULT(${GCC_VERSION})
fi
#
# Set the debug symbol option if we have
# --enable-*developer or --enable-debug
# and the compiler supports it
#
if test x$ac_cv_prog_cc_g = xyes -a x$debug = xyes; then
CFLAGS="${CFLAGS} -g"
fi
dnl needed before AC_TRY_COMPILE
AC_ISC_POSIX
############################################
# check if the compiler handles c99 struct initialization
LIBREPLACE_C99_STRUCT_INIT(samba_cv_c99_struct_initialization=yes,
samba_cv_c99_struct_initialization=no)
if test x"$samba_cv_c99_struct_initialization" != x"yes"; then
AC_MSG_WARN([C compiler does not support c99 struct initialization!])
AC_MSG_ERROR([Please Install gcc from http://gcc.gnu.org/])
fi
############################################
# check if the compiler can handle negative enum values
# and don't truncate the values to INT_MAX
# a runtime test is needed here
AC_CACHE_CHECK([that the C compiler understands negative enum values],SMB_BUILD_CC_NEGATIVE_ENUM_VALUES, [
AC_TRY_RUN(
[
#include <stdio.h>
enum negative_values { NEGATIVE_VALUE = 0xFFFFFFFF };
int main(void) {
enum negative_values v1 = NEGATIVE_VALUE;
unsigned v2 = NEGATIVE_VALUE;
if (v1 != 0xFFFFFFFF) {
printf("%u != 0xFFFFFFFF\n", v1);
return 1;
}
if (v2 != 0xFFFFFFFF) {
printf("%u != 0xFFFFFFFF\n", v2);
return 1;
}
return 0;
}
],
SMB_BUILD_CC_NEGATIVE_ENUM_VALUES=yes,SMB_BUILD_CC_NEGATIVE_ENUM_VALUES=no)])
if test x"$SMB_BUILD_CC_NEGATIVE_ENUM_VALUES" != x"yes"; then
AC_MSG_WARN([using --unit-enums for pidl])
PIDL_ARGS="$PIDL_ARGS --uint-enums"
fi
AC_MSG_CHECKING([for test routines])
AC_TRY_RUN([#include "${srcdir-.}/build/tests/trivial.c"],
AC_MSG_RESULT(yes),
AC_MSG_ERROR([cant find test code. Aborting config]),
AC_MSG_WARN([cannot run when cross-compiling]))
#
# Check if the compiler support ELF visibility for symbols
#
visibility_attribute=no
VISIBILITY_CFLAGS=""
if test x"$GCC" = x"yes" ; then
AX_CFLAGS_GCC_OPTION([-fvisibility=hidden], VISIBILITY_CFLAGS)
fi
if test -n "$VISIBILITY_CFLAGS"; then
AC_MSG_CHECKING([whether the C compiler supports the visibility attribute])
OLD_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS $VISIBILITY_CFLAGS"
AC_TRY_RUN([
void vis_foo1(void) {}
__attribute__((visibility("default"))) void vis_foo2(void) {}
#include "${srcdir-.}/build/tests/trivial.c"
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_VISIBILITY_ATTR,1,[Whether the C compiler supports the visibility attribute])
visibility_attribute=yes
],[
AC_MSG_RESULT(no)
])
CFLAGS="$OLD_CFLAGS"
fi
AC_SUBST(visibility_attribute)
#
# Check if the compiler can handle the options we selected by
# --enable-*developer
#
DEVELOPER_CFLAGS=""
if test x$developer = xyes; then
OLD_CFLAGS="${CFLAGS}"
CFLAGS="${CFLAGS} -D_SAMBA_DEVELOPER_DONNOT_USE_O2_"
DEVELOPER_CFLAGS="-DDEBUG_PASSWORD -DDEVELOPER"
if test x"$GCC" = x"yes" ; then
#
# warnings we want...
#
AX_CFLAGS_GCC_OPTION(-Wall, DEVELOPER_CFLAGS)
AX_CFLAGS_GCC_OPTION(-Wshadow, DEVELOPER_CFLAGS)
AX_CFLAGS_GCC_OPTION(-Werror-implicit-function-declaration, DEVELOPER_CFLAGS)
AX_CFLAGS_GCC_OPTION(-Wstrict-prototypes, DEVELOPER_CFLAGS)
AX_CFLAGS_GCC_OPTION(-Wpointer-arith, DEVELOPER_CFLAGS)
AX_CFLAGS_GCC_OPTION(-Wcast-qual, DEVELOPER_CFLAGS)
AX_CFLAGS_GCC_OPTION(-Wcast-align, DEVELOPER_CFLAGS)
AX_CFLAGS_GCC_OPTION(-Wwrite-strings, DEVELOPER_CFLAGS)
AX_CFLAGS_GCC_OPTION(-Wmissing-format-attribute, DEVELOPER_CFLAGS)
AX_CFLAGS_GCC_OPTION(-Wformat=2, DEVELOPER_CFLAGS)
AX_CFLAGS_GCC_OPTION(-Wdeclaration-after-statement, DEVELOPER_CFLAGS)
AX_CFLAGS_GCC_OPTION(-Wunused-macros, DEVELOPER_CFLAGS)
# AX_CFLAGS_GCC_OPTION(-Wextra, DEVELOPER_CFLAGS)
# AX_CFLAGS_GCC_OPTION(-Wc++-compat, DEVELOPER_CFLAGS)
# AX_CFLAGS_GCC_OPTION(-Wmissing-prototypes, DEVELOPER_CFLAGS)
# AX_CFLAGS_GCC_OPTION(-Wmissing-declarations, DEVELOPER_CFLAGS)
# AX_CFLAGS_GCC_OPTION(-Wmissing-field-initializers, DEVELOPER_CFLAGS)
#
# warnings we don't want...
#
AX_CFLAGS_GCC_OPTION(-Wno-format-y2k, DEVELOPER_CFLAGS)
AX_CFLAGS_GCC_OPTION(-Wno-unused-parameter, DEVELOPER_CFLAGS)
else
AX_CFLAGS_IRIX_OPTION(-fullwarn, DEVELOPER_CFLAGS)
fi
CFLAGS="${OLD_CFLAGS}"
fi
if test -n "$DEVELOPER_CFLAGS"; then
OLD_CFLAGS="${CFLAGS}"
CFLAGS="${CFLAGS} ${DEVELOPER_CFLAGS}"
AC_MSG_CHECKING([that the C compiler can use the DEVELOPER_CFLAGS])
AC_TRY_COMPILE([],[],
AC_MSG_RESULT(yes),
DEVELOPER_CFLAGS=""; AC_MSG_RESULT(no))
CFLAGS="${OLD_CFLAGS}"
fi
#
# Config CPPFLAG settings for strange OS's that must be set
# before other tests.
#
case "$host_os" in
# Try to work out if this is the native HPUX compiler that uses the -Ae flag.
*hpux*)
# mmap on HPUX is completely broken...
AC_DEFINE(MMAP_BLACKLIST, 1, [Whether MMAP is broken])
;;
*aix*)
if test "${GCC}" != "yes"; then
## for funky AIX compiler using strncpy()
CFLAGS="$CFLAGS -D_LINUX_SOURCE_COMPAT -qmaxmem=32000"
fi
;;
#
# VOS may need to have POSIX support and System V compatibility enabled.
#
*vos*)
case "$CPPFLAGS" in
*-D_POSIX_C_SOURCE*);;
*)
CPPFLAGS="$CPPFLAGS -D_POSIX_C_SOURCE=200112L"
AC_DEFINE(_POSIX_C_SOURCE, 200112L, [Whether to enable POSIX support])
;;
esac
case "$CPPFLAGS" in
*-D_SYSV*|*-D_SVID_SOURCE*);;
*)
CPPFLAGS="$CPPFLAGS -D_SYSV"
AC_DEFINE(_SYSV, 1, [Whether to enable System V compatibility])
;;
esac
;;
esac
# allow for --with-hostcc=gcc
AC_ARG_WITH(hostcc,[ --with-hostcc=compiler choose host compiler],
[HOSTCC=$withval],
[
if test z"$cross_compiling" = "yes"; then
HOSTCC=cc
else
HOSTCC=$CC
fi
])
AC_SUBST(HOSTCC)
AC_PATH_PROG(GCOV,gcov)
AC_PATH_PROG(MAKE,make)
AC_CACHE_CHECK([whether we have GNU make], samba_cv_gnu_make, [
if $ac_cv_path_MAKE --version | head -1 | grep GNU 2>/dev/null >/dev/null
then
samba_cv_gnu_make=yes
else
samba_cv_gnu_make=no
fi
])
GNU_MAKE=$samba_cv_gnu_make
AC_SUBST(GNU_MAKE)
if test "x$GNU_MAKE" = x"yes"; then
AC_CACHE_CHECK([GNU make version], samba_cv_gnu_make_version,[
samba_cv_gnu_make_version=`$ac_cv_path_MAKE --version | head -1 | cut -d " " -f 3 2>/dev/null`
])
GNU_MAKE_VERSION=$samba_cv_gnu_make_version
AC_SUBST(GNU_MAKE_VERSION)
fi
new_make=no
AC_MSG_CHECKING([for GNU make >= 3.81])
if test x$GNU_MAKE = x"yes"; then
if $PERL -e " \$_ = '$GNU_MAKE_VERSION'; s/@<:@^\d\.@:>@.*//g; exit (\$_ < 3.81);"; then
new_make=yes
fi
fi
AC_MSG_RESULT($new_make)
automatic_dependencies=no
AX_CFLAGS_GCC_OPTION([-M -MT conftest.d -MF conftest.o], [], [ automatic_dependencies=$new_make ], [])
AC_MSG_CHECKING([Whether to use automatic dependencies])
AC_MSG_RESULT($automatic_dependencies)
AC_SUBST(automatic_dependencies)
|
