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
|
AC_INIT([dash],[0.5.11.4])
AM_INIT_AUTOMAKE([foreign subdir-objects])
AC_CONFIG_SRCDIR([src/main.c])
AC_CONFIG_HEADERS(config.h)
m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES(yes)])
dnl Checks for programs.
AC_PROG_CC
AC_USE_SYSTEM_EXTENSIONS
AC_MSG_CHECKING([for build system compiler])
if test "$cross_compiling" = yes; then
CC_FOR_BUILD=${CC_FOR_BUILD-cc}
else
CC_FOR_BUILD=${CC}
fi
AC_MSG_RESULT(${CC_FOR_BUILD})
AC_SUBST(CC_FOR_BUILD)
AC_MSG_CHECKING([for __attribute__((__alias__()))])
dash_cv_have_attribute_alias=no
AC_LINK_IFELSE([AC_LANG_PROGRAM([void t() {}
void a() __attribute__((__alias__("t")));],
[a();])],
[dash_cv_have_attribute_alias=yes])
AC_MSG_RESULT($dash_cv_have_attribute_alias)
if test "x$dash_cv_have_attribute_alias" = xyes; then
AC_DEFINE([HAVE_ALIAS_ATTRIBUTE], 1,
[Define if __attribute__((__alias__())) is supported])
fi
AC_ARG_ENABLE(static, AS_HELP_STRING(--enable-static, \
[Build statical linked program]))
if test "$enable_static" = "yes"; then
export LDFLAGS="-static -Wl,--fatal-warnings"
fi
AC_ARG_ENABLE(fnmatch, AS_HELP_STRING(--enable-fnmatch, \
[Use fnmatch(3) from libc]))
AC_ARG_ENABLE(glob, AS_HELP_STRING(--enable-glob, [Use glob(3) from libc]))
dnl Checks for libraries.
dnl Checks for header files.
AC_CHECK_HEADERS(alloca.h paths.h)
dnl Check for declarations
AC_CHECK_DECL([_PATH_BSHELL],,AC_DEFINE_UNQUOTED([_PATH_BSHELL], "/bin/sh", [Define to system shell path]),[
#ifdef HAVE_PATHS_H
#include <paths.h>
#endif
])
AC_CHECK_DECL([_PATH_DEVNULL],,AC_DEFINE_UNQUOTED([_PATH_DEVNULL], "/dev/null", [Define to devnull device node path]),[
#ifdef HAVE_PATHS_H
#include <paths.h>
#endif
])
AC_CHECK_DECL([_PATH_TTY],,AC_DEFINE_UNQUOTED([_PATH_TTY], "/dev/tty", [Define to tty device node path]),[
#ifdef HAVE_PATHS_H
#include <paths.h>
#endif
])
dnl Some systems lack isblank
AC_CHECK_DECLS([isblank],,,[#include <ctype.h>])
dnl Check for sizes of types
AC_CHECK_SIZEOF([intmax_t])
AC_CHECK_SIZEOF([long long int])
dnl Select a fallback format string for intmax_t in case we don't find PRIdMAX
if test "x$ac_cv_sizeof_intmax_t" = "x$ac_cv_sizeof_long_long_int"; then
intmax_fstr="lld"
else
intmax_fstr="jd"
fi
dnl Check for PRIdMAX and define it to a fallback if not found
AC_CHECK_DECL([PRIdMAX],,
[AC_DEFINE_UNQUOTED([PRIdMAX], "$intmax_fstr",
[Define to printf format string for intmax_t])],
[
#include <inttypes.h>
])
dnl Checks for library functions.
AC_CHECK_FUNCS(bsearch faccessat getpwnam getrlimit isalpha killpg \
mempcpy \
sigsetmask stpcpy strchrnul strsignal strtod strtoimax \
strtoumax sysconf)
dnl Check whether it's worth working around FreeBSD PR kern/125009.
dnl The traditional behavior of access/faccessat is crazy, but
dnl POSIX.1-2008 explicitly allows those functions to misbehave.
dnl
dnl Unaffected kernels:
dnl
dnl - all versions of Linux
dnl - NetBSD sys/kern/vfs_subr.c 1.64, 1997-04-23
dnl - FreeBSD 9 (r212002), 2010-09-10
dnl - OpenBSD sys/kern/vfs_subr.c 1.166, 2008-06-09
dnl
dnl Also worked around in Debian's libc0.1 2.13-19 when using
dnl kFreeBSD 8.
AC_ARG_ENABLE(test-workaround, AS_HELP_STRING(--enable-test-workaround, \
[Guard against faccessat(2) that tells root all files are executable]),,
[enable_test_workaround=auto])
if test "enable_test_workaround" = "auto" &&
test "$ac_cv_func_faccessat" = yes; then
case `uname -s 2>/dev/null` in
GNU/kFreeBSD | \
FreeBSD)
enable_test_workaround=yes
esac
fi
if test "$enable_test_workaround" = "yes"; then
AC_DEFINE([HAVE_TRADITIONAL_FACCESSAT], [1],
[Define if your faccessat tells root all files are executable])
fi
if test "$enable_fnmatch" = yes; then
use_fnmatch=
AC_CHECK_FUNCS(fnmatch, use_fnmatch=yes)
fi
if test "$use_fnmatch" = yes && test "$enable_glob" = yes; then
AC_CHECK_FUNCS(glob)
fi
dnl Check for klibc signal.
AC_CHECK_FUNC(signal)
if test "$ac_cv_func_signal" != yes; then
AC_CHECK_FUNC(bsd_signal,
[AC_DEFINE(signal, bsd_signal,
[klibc has bsd_signal instead of signal])])
fi
dnl Check for stat64 (dietlibc/klibc).
AC_CHECK_FUNC(stat64,, [
AC_DEFINE(fstat64, fstat, [64-bit operations are the same as 32-bit])
AC_DEFINE(lstat64, lstat, [64-bit operations are the same as 32-bit])
AC_DEFINE(stat64, stat, [64-bit operations are the same as 32-bit])
])
dnl OS X apparently has stat64 but not open64.
AC_CHECK_FUNC(open64,, [
AC_DEFINE(open64, open, [64-bit operations are the same as 32-bit])
AC_DEFINE(readdir64, readdir,
[64-bit operations are the same as 32-bit])
AC_DEFINE(dirent64, dirent,
[64-bit operations are the same as 32-bit])
])
dnl Check if struct stat has st_mtim.
AC_MSG_CHECKING(for stat::st_mtim)
AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM([#include <time.h>
#include <sys/time.h>
#include <sys/stat.h>],
[struct stat foo; return sizeof(foo.st_mtim.tv_sec)])],
have_st_mtim=yes, have_st_mtim=no)
AC_MSG_RESULT($have_st_mtim)
if test "$have_st_mtim" = "yes"; then
AC_DEFINE([HAVE_ST_MTIM], [1],
[Define if your `struct stat' has `st_mtim'])
fi
AC_ARG_WITH(libedit,
AS_HELP_STRING(--without-libedit, [Compile without libedit support]))
use_libedit=
if test "$with_libedit" != "no"; then
AC_CHECK_LIB(edit, history_init, [
AC_CHECK_HEADER([histedit.h], [use_libedit="yes"],
AC_MSG_ERROR(
[Can't find required header files.]))], [
AC_MSG_ERROR([Can't find libedit.])])
fi
if test "$use_libedit" != "yes"; then
AC_DEFINE([SMALL], 1, [Define if you build with -DSMALL])
else
export LIBS="$LIBS -ledit"
AC_CHECK_FUNCS(_el_fn_sh_complete)
fi
AC_ARG_ENABLE(lineno, AS_HELP_STRING(--disable-lineno, \
[Disable LINENO support]))
if test "$enable_lineno" != "no"; then
AC_DEFINE([WITH_LINENO], 1, [Define if you build with -DWITH_LINENO])
fi
AC_CONFIG_FILES([Makefile src/Makefile])
AC_OUTPUT
|