2 # Site defaults for the MinGW configuration of GNU Emacs.
4 # This file's purpose is to short-circuit configure-time tests for
5 # which we want to provide the results instead of letting the
6 # 'configure' script do that. This is mainly for features that
7 # 'configure' tests that are implemented as part of Emacs sources, not
8 # as part of system libraries. The idea is to set shell variables
9 # that appear to the script as cached values.
11 # For each header file foo.h you want to supply test results, set the
12 # value of a shell variable ac_cv_header_foo_h. The value should be
13 # yes if the header is deemed to exist, no otherwise. Or it could be
14 # something else, if the value computed by 'configure' requires that.
15 # In general, since nt/msysconfig.sh instructs GCC to use header files
16 # in nt/inc, you should not need to futz with header file tests. But
17 # there are exceptions, like with getopt.h below (which is a MinGW
18 # system header, but we do not want to use it).
20 # For each library function foo you want to supply test results, set
21 # the value of a shell variable ac_cv_func_foo. Again, the value is
22 # determined by what 'configure' expects; sometimes it could be "not
23 # needed" or whatever, see the examples below. In addition, you may
24 # need to set the various gl_cv_* variables for those tests that come
27 # In short, examine the test in 'configure' and push the knobs that
28 # are necessary to steer the test in the direction you need, by
29 # judiciously setting variables that control the test results.
31 # We want to use getopt.h from gnulib
32 ac_cv_header_getopt_h
=no
34 # ACL functions are implemented in w32.c
35 ac_cv_search_acl_get_file
="none required"
36 ac_cv_func_acl_get_file
=yes
37 ac_cv_func_acl_set_file
=yes
38 ac_cv_func_acl_free
=yes
39 ac_cv_func_acl_from_text
=yes
40 gl_cv_func_working_acl_get_file
=yes
41 # Autoconf's test program is not smart enough, and fails to detect gethostname
42 ac_cv_func_gethostname
=yes
43 # Implemented as sys_select in w32proc.c
45 ac_cv_func_pselect
=yes
47 gl_cv_func_pselect_detects_ebadf
=yes
48 # Implemented as sys_shutdown in w32.c
49 ac_cv_func_shutdown
=yes
50 # Implemented in w32proc.c
51 ac_cv_func_setitimer
=yes
52 # Implemented as sys_sendto in w32.c
54 # Implemented as sys_recvfrom in w32.c
55 ac_cv_func_recvfrom
=yes
56 # Implemented as sys_getsockname in w32.c
57 ac_cv_func_getsockname
=yes
58 # Implemented as sys_getpeername in w32.c
59 ac_cv_func_getpeername
=yes
60 # Implemented as sys_socket in w32.c
62 # Implemented in w32.c
63 ac_cv_func_mkostemp
=yes
64 ac_cv_func_readlink
=yes
65 ac_cv_func_symlink
=yes
66 # Avoid run-time tests of readlink and symlink, which will fail
67 gl_cv_func_readlink_works
=yes
68 gl_cv_func_symlink_works
=yes
69 ac_cv_func_readlinkat
=yes
70 ac_cv_func_faccessat
=yes
71 # Implemented in w32.c
73 gl_cv_func_fcntl_f_dupfd_cloexec
=yes
74 gl_cv_func_fcntl_f_dupfd_works
=yes
75 # We don't need fdopendir
76 ac_cv_func_fdopendir
="not-needed"
77 gl_cv_func_fdopendir_works
="no-but-not-needed-so-yes"
78 # Implemented in w32.c
80 gl_cv_func_lstat_dereferences_slashed_symlink
=yes
81 ac_cv_func_fstatat
=yes
82 gl_cv_func_fstatat_zero_flag
=yes
83 # Aliased to _commit in ms-w32.h
85 ac_cv_func_fdatasync
=yes
86 # Implemented in w32proc.c
87 ac_cv_func_pthread_sigmask
=yes
88 # Avoid gnulib replacement
90 gl_cv_func_pthread_sigmask_return_works
=yes
91 gl_cv_func_pthread_sigmask_unblock_works
="not relevant"
92 # Implemented in w32proc.c
93 emacs_cv_langinfo_codeset
=yes
94 # Declared in ms-w32.h
95 ac_cv_have_decl_alarm
=yes
96 # Avoid including the gnulib dup2 module
97 gl_cv_func_dup2_works
=yes
99 ac_cv_func_getloadavg
=yes
100 # Avoid compiling gnulib mktime
101 gl_cv_func_working_mktime
=yes
102 # Implemented in w32.c
104 ac_cv_have_decl_unsetenv
=yes
105 ac_cv_func_unsetenv
=yes
106 gt_cv_func_unsetenv_ret
='int'
107 gl_cv_func_unsetenv_works
=yes
108 gl_cv_func_stat_dir_slash
=yes
109 gl_cv_func_stat_file_slash
=yes
110 ac_cv_func_random
=yes
111 # Implemented in w32.c as sys_putenv
112 gl_cv_func_svid_putenv
=yes