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
|
dnl This provides configure definitions used by all the newlib
dnl configure.in files.
AC_DEFUN([DEF_NEWLIB_MAJOR_VERSION],m4_define([NEWLIB_MAJOR_VERSION],[4]))
AC_DEFUN([DEF_NEWLIB_MINOR_VERSION],m4_define([NEWLIB_MINOR_VERSION],[2]))
AC_DEFUN([DEF_NEWLIB_PATCHLEVEL_VERSION],m4_define([NEWLIB_PATCHLEVEL_VERSION],[0]))
AC_DEFUN([DEF_NEWLIB_VERSION],m4_define([NEWLIB_VERSION],[NEWLIB_MAJOR_VERSION.NEWLIB_MINOR_VERSION.NEWLIB_PATCHLEVEL_VERSION]))
dnl Basic newlib configury. This calls basic introductory stuff,
dnl including AM_INIT_AUTOMAKE and AC_CANONICAL_HOST. It also runs
dnl configure.host. The only argument is the relative path to the top
dnl newlib directory.
AC_DEFUN([NEWLIB_CONFIGURE],
[AC_REQUIRE([DEF_NEWLIB_VERSION])
dnl Support --enable-target-optspace
AC_ARG_ENABLE(target-optspace,
[ --enable-target-optspace optimize for space],
[case "${enableval}" in
yes) target_optspace=yes ;;
no) target_optspace=no ;;
*) AC_MSG_ERROR(bad value ${enableval} for target-optspace option) ;;
esac], [target_optspace=])dnl
dnl Support --enable-malloc-debugging - currently only supported for Cygwin
AC_ARG_ENABLE(malloc-debugging,
[ --enable-malloc-debugging indicate malloc debugging requested],
[case "${enableval}" in
yes) malloc_debugging=yes ;;
no) malloc_debugging=no ;;
*) AC_MSG_ERROR(bad value ${enableval} for malloc-debugging option) ;;
esac], [malloc_debugging=])dnl
dnl Support --enable-newlib-multithread
AC_ARG_ENABLE(newlib-multithread,
[ --enable-newlib-multithread enable support for multiple threads],
[case "${enableval}" in
yes) newlib_multithread=yes ;;
no) newlib_multithread=no ;;
*) AC_MSG_ERROR(bad value ${enableval} for newlib-multithread option) ;;
esac], [newlib_multithread=yes])dnl
dnl Support --enable-newlib-iconv
AC_ARG_ENABLE(newlib-iconv,
[ --enable-newlib-iconv enable iconv library support],
[if test "${newlib_iconv+set}" != set; then
case "${enableval}" in
yes) newlib_iconv=yes ;;
no) newlib_iconv=no ;;
*) AC_MSG_ERROR(bad value ${enableval} for newlib-iconv option) ;;
esac
fi], [newlib_iconv=${newlib_iconv}])dnl
dnl Support --enable-newlib-elix-level
AC_ARG_ENABLE(newlib-elix-level,
[ --enable-newlib-elix-level supply desired elix library level (1-4)],
[case "${enableval}" in
0) newlib_elix_level=0 ;;
1) newlib_elix_level=1 ;;
2) newlib_elix_level=2 ;;
3) newlib_elix_level=3 ;;
4) newlib_elix_level=4 ;;
*) AC_MSG_ERROR(bad value ${enableval} for newlib-elix-level option) ;;
esac], [newlib_elix_level=0])dnl
dnl Support --disable-newlib-io-float
AC_ARG_ENABLE(newlib-io-float,
[ --disable-newlib-io-float disable printf/scanf family float support],
[case "${enableval}" in
yes) newlib_io_float=yes ;;
no) newlib_io_float=no ;;
*) AC_MSG_ERROR(bad value ${enableval} for newlib-io-float option) ;;
esac], [newlib_io_float=yes])dnl
dnl Support --disable-newlib-supplied-syscalls
AC_ARG_ENABLE(newlib-supplied-syscalls,
[ --disable-newlib-supplied-syscalls disable newlib from supplying syscalls],
[case "${enableval}" in
yes) newlib_may_supply_syscalls=yes ;;
no) newlib_may_supply_syscalls=no ;;
*) AC_MSG_ERROR(bad value ${enableval} for newlib-supplied-syscalls option) ;;
esac], [newlib_may_supply_syscalls=yes])dnl
AM_CONDITIONAL(MAY_SUPPLY_SYSCALLS, test x[$]{newlib_may_supply_syscalls} = xyes)
dnl Support --disable-newlib-fno-builtin
AC_ARG_ENABLE(newlib-fno-builtin,
[ --disable-newlib-fno-builtin disable -fno-builtin flag to allow compiler to use builtin library functions],
[case "${enableval}" in
yes) newlib_fno_builtin=yes ;;
no) newlib_fno_builtin=no ;;
*) AC_MSG_ERROR(bad value ${enableval} for newlib-fno-builtin option) ;;
esac], [newlib_fno_builtin=])dnl
dnl We may get other options which we don't document:
dnl --with-target-subdir, --with-multisrctop, --with-multisubdir
test -z "[$]{with_target_subdir}" && with_target_subdir=.
if test "[$]{srcdir}" = "."; then
if test "[$]{with_target_subdir}" != "."; then
newlib_basedir="[$]{srcdir}/[$]{with_multisrctop}../$1"
else
newlib_basedir="[$]{srcdir}/[$]{with_multisrctop}$1"
fi
else
newlib_basedir="[$]{srcdir}/$1"
fi
AC_SUBST(newlib_basedir)
abs_newlib_basedir=`cd "${newlib_basedir}" && pwd`
AC_SUBST(abs_newlib_basedir)
AC_CANONICAL_HOST
AM_INIT_AUTOMAKE([foreign no-installinfo no-dist no-define subdir-objects 1.15.1])
AM_MAINTAINER_MODE
AM_SILENT_RULES(yes)
AC_NO_EXECUTABLES
AC_REQUIRE([AC_PROG_CC])dnl
AC_REQUIRE([AC_PROG_CPP])dnl
AC_REQUIRE([AM_PROG_AS])dnl
AC_REQUIRE([AM_PROG_AR])dnl
AC_PROG_RANLIB
AC_CHECK_TOOL(READELF, readelf, :)
dnl We need these programs, but so does Automake. Require the macros to avoid
dnl expanding them multiple times.
AC_REQUIRE([AC_PROG_INSTALL])dnl
AC_REQUIRE([AC_PROG_AWK])dnl
. [$]{newlib_basedir}/configure.host
NEWLIB_CFLAGS=${newlib_cflags}
AC_SUBST(NEWLIB_CFLAGS)
NO_INCLUDE_LIST=${noinclude}
AC_SUBST(NO_INCLUDE_LIST)
AM_CONDITIONAL(ELIX_LEVEL_0, test x[$]{newlib_elix_level} = x0)
AM_CONDITIONAL(ELIX_LEVEL_1, test x[$]{newlib_elix_level} = x1)
AM_CONDITIONAL(ELIX_LEVEL_2, test x[$]{newlib_elix_level} = x2)
AM_CONDITIONAL(ELIX_LEVEL_3, test x[$]{newlib_elix_level} = x3)
AM_CONDITIONAL(ELIX_LEVEL_4, test x[$]{newlib_elix_level} = x4)
# Emit any target-specific warnings.
if test "x${newlib_msg_warn}" != "x"; then
AC_MSG_WARN([${newlib_msg_warn}])
fi
# Hard-code OBJEXT. Normally it is set by AC_OBJEXT, but we
# use oext, which is set in configure.host based on the target platform.
OBJEXT=o
AC_SUBST(OBJEXT)
AC_SUBST(lpfx)
AC_SUBST(libm_machine_dir)
AC_SUBST(machine_dir)
AC_SUBST(shared_machine_dir)
AC_SUBST(sys_dir)
])
|
