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
|
dnl GNU Guix --- Functional package management for GNU
dnl Copyright © 2012, 2013, 2014, 2015 Ludovic Courtès <ludo@gnu.org>
dnl Copyright © 2014 Mark H Weaver <mhw@netris.org>
dnl
dnl This file is part of GNU Guix.
dnl
dnl GNU Guix is free software; you can redistribute it and/or modify it
dnl under the terms of the GNU General Public License as published by
dnl the Free Software Foundation; either version 3 of the License, or (at
dnl your option) any later version.
dnl
dnl GNU Guix is distributed in the hope that it will be useful, but
dnl WITHOUT ANY WARRANTY; without even the implied warranty of
dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
dnl GNU General Public License for more details.
dnl
dnl You should have received a copy of the GNU General Public License
dnl along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
dnl GUIX_ASSERT_LIBGCRYPT_USABLE
dnl
dnl Assert that GNU libgcrypt is usable from Guile.
AC_DEFUN([GUIX_ASSERT_LIBGCRYPT_USABLE],
[AC_CACHE_CHECK([whether $LIBGCRYPT can be dynamically loaded],
[guix_cv_libgcrypt_usable_p],
[GUILE_CHECK([retval],
[(dynamic-func \"gcry_md_hash_buffer\" (dynamic-link \"$LIBGCRYPT\"))])
if test "$retval" = 0; then
guix_cv_libgcrypt_usable_p="yes"
else
guix_cv_libgcrypt_usable_p="no"
fi])
if test "x$guix_cv_libgcrypt_usable_p" != "xyes"; then
AC_MSG_ERROR([GNU libgcrypt does not appear to be usable; see `--with-libgcrypt-prefix' and `README'.])
fi])
dnl GUIX_SYSTEM_TYPE
dnl
dnl Determine the Guix host system type, and store it in the
dnl `guix_system' variable.
AC_DEFUN([GUIX_SYSTEM_TYPE], [
AC_REQUIRE([AC_CANONICAL_HOST])
AC_PATH_PROG([SED], [sed])
AC_ARG_WITH(system, AC_HELP_STRING([--with-system=SYSTEM],
[Platform identifier (e.g., `i686-linux').]),
[guix_system="$withval"],
[case "$host_cpu" in
i*86)
machine_name="i686";;
amd64)
machine_name="x86_64";;
arm*)
# TODO: If not cross-compiling, add a sanity check to make
# sure this build machine has the needed features to
# support executables compiled using our armhf gcc,
# configured with:
# --with-arch=armv7-a
# --with-float=hard
# --with-mode=thumb
# --with-fpu=vfpv3-d16
machine_name="armhf";;
*)
machine_name="$host_cpu";;
esac
case "$host_os" in
linux-gnu*)
# For backward compatibility, strip the `-gnu' part.
guix_system="$machine_name-linux";;
*)
# Strip the version number from names such as `gnu0.3',
# `darwin10.2.0', etc.
guix_system="$machine_name-`echo $host_os | "$SED" -e's/[0-9.]*$//g'`";;
esac])
AC_MSG_CHECKING([for the Guix system type])
AC_MSG_RESULT([$guix_system])
AC_SUBST([guix_system])
])
dnl GUIX_ASSERT_SUPPORTED_SYSTEM
dnl
dnl Assert that this is a system to which the distro is ported.
AC_DEFUN([GUIX_ASSERT_SUPPORTED_SYSTEM], [
AC_REQUIRE([GUIX_SYSTEM_TYPE])
AC_ARG_WITH([courage], [AC_HELP_STRING([--with-courage],
[Assert that even if this platform is unsupported, you will be
courageous and port the GNU System distribution to it (see
"GNU Distribution" in the manual.)])],
[guix_courageous="$withval"],
[guix_courageous="no"])
# Currently only Linux-based systems are supported, and only on some
# platforms.
case "$guix_system" in
x86_64-linux|i686-linux|armhf-linux|mips64el-linux)
;;
*)
if test "x$guix_courageous" = "xyes"; then
AC_MSG_WARN([building Guix on `$guix_system', which is not supported])
else
AC_MSG_ERROR([`$guix_system' is not a supported platform.
See "GNU Distribution" in the manual, or try `--with-courage'.])
fi
;;
esac
])
dnl GUIX_ASSERT_GUILE_FEATURES FEATURES
dnl
dnl Assert that FEATURES are provided by $GUILE.
AC_DEFUN([GUIX_ASSERT_GUILE_FEATURES], [
for guix_guile_feature in $1
do
AC_MSG_CHECKING([whether $GUILE provides feature '$guix_guile_feature'])
if "$GUILE" -c "(exit (provided? '$guix_guile_feature))"
then
AC_MSG_RESULT([yes])
else
AC_MSG_RESULT([no])
AC_MSG_ERROR([$GUILE does not support feature '$guix_guile_feature', which is required.])
fi
done
])
dnl GUIX_CHECK_SRFI_37
dnl
dnl Check whether SRFI-37 suffers from <http://bugs.gnu.org/13176>.
dnl This bug was fixed in Guile 2.0.9.
AC_DEFUN([GUIX_CHECK_SRFI_37], [
AC_CACHE_CHECK([whether (srfi srfi-37) is affected by http://bugs.gnu.org/13176],
[ac_cv_guix_srfi_37_broken],
[if "$GUILE" -c "(use-modules (srfi srfi-37)) \
(sigaction SIGALRM (lambda _ (primitive-exit 1))) \
(alarm 1) \
(define opts (list (option '(#\I) #f #t (lambda _ #t)))) \
(args-fold '(\"-I\") opts (lambda _ (error)) (lambda _ #f) '())"
then
ac_cv_guix_srfi_37_broken=no
else
ac_cv_guix_srfi_37_broken=yes
fi])
])
dnl GUIX_CHECK_UNBUFFERED_CBIP
dnl
dnl Check whether 'setbvuf' works on custom binary input ports (CBIPs), as is
dnl the case starting with Guile 2.0.10.
AC_DEFUN([GUIX_CHECK_UNBUFFERED_CBIP], [
AC_CACHE_CHECK([whether Guile's custom binary input ports support 'setvbuf'],
[ac_cv_guix_cbips_support_setvbuf],
[if "$GUILE" -c "(use-modules (rnrs io ports)) \
(let ((p (make-custom-binary-input-port \"cbip\" pk #f #f #f))) \
(setvbuf p _IONBF))" >&5 2>&1
then
ac_cv_guix_cbips_support_setvbuf=yes
else
ac_cv_guix_cbips_support_setvbuf=no
fi])
])
dnl GUIX_TEST_ROOT_DIRECTORY
AC_DEFUN([GUIX_TEST_ROOT_DIRECTORY], [
AC_CACHE_CHECK([for unit test root directory],
[ac_cv_guix_test_root],
[ac_cv_guix_test_root="`pwd`/test-tmp"])
])
dnl 'BINPRM_BUF_SIZE' constant in Linux. The Hurd has a limit
dnl of about a page (see exec/hashexec.c.)
m4_define([LINUX_HASH_BANG_LIMIT], 128)
dnl Hardcoded 'sun_path' length in <sys/un.h>.
m4_define([SOCKET_FILE_NAME_LIMIT], 108)
dnl GUIX_SOCKET_FILE_NAME_LENGTH
AC_DEFUN([GUIX_SOCKET_FILE_NAME_LENGTH], [
AC_CACHE_CHECK([the length of the installed socket file name],
[ac_cv_guix_socket_file_name_length],
[ac_cv_guix_socket_file_name_length="`echo -n "$guix_localstatedir/guix/daemon-socket/socket" | wc -c`"])
])
dnl GUIX_TEST_SOCKET_FILE_NAME_LENGTH
AC_DEFUN([GUIX_TEST_SOCKET_FILE_NAME_LENGTH], [
AC_REQUIRE([GUIX_TEST_ROOT_DIRECTORY])
AC_CACHE_CHECK([the length of the socket file name used in tests],
[ac_cv_guix_test_socket_file_name_length],
[ac_cv_guix_test_socket_file_name_length="`echo -n "$ac_cv_guix_test_root/var/123456/daemon-socket/socket" | wc -c`"])
])
dnl GUIX_HASH_BANG_LENGTH
AC_DEFUN([GUIX_HASH_BANG_LENGTH], [
AC_CACHE_CHECK([the length of a typical hash bang line],
[ac_cv_guix_hash_bang_length],
[ac_cv_guix_hash_bang_length=`echo -n "$storedir/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa-bootstrap-binaries-0/bin/bash" | wc -c`])
])
dnl GUIX_CHECK_FILE_NAME_LIMITS
dnl
dnl GNU/Linux has a couple of silly limits that we can easily run into.
dnl Make sure everything is fine with the current settings.
AC_DEFUN([GUIX_CHECK_FILE_NAME_LIMITS], [
AC_REQUIRE([GUIX_SOCKET_FILE_NAME_LENGTH])
AC_REQUIRE([GUIX_TEST_SOCKET_FILE_NAME_LENGTH])
AC_REQUIRE([GUIX_HASH_BANG_LENGTH])
if test "$ac_cv_guix_socket_file_name_length" -ge ]SOCKET_FILE_NAME_LIMIT[; then
AC_MSG_ERROR([socket file name would exceed the maxium allowed length])
fi
if test "$ac_cv_guix_test_socket_file_name_length" -ge ]SOCKET_FILE_NAME_LIMIT[; then
AC_MSG_WARN([socket file name limit may be exceeded when running tests])
fi
if test "$ac_cv_guix_hash_bang_length" -ge ]LINUX_HASH_BANG_LIMIT[; then
AC_MSG_ERROR([store directory '$storedir' would lead to overly long hash-bang lines])
fi
])
|
