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
|
dnl This provides configure definitions used by all the newlib
dnl configure.in files.
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,
[
dnl Default to --enable-multilib
AC_ARG_ENABLE(multilib,
[ --enable-multilib build many library versions (default)],
[case "${enableval}" in
yes) multilib=yes ;;
no) multilib=no ;;
*) AC_MSG_ERROR(bad value ${enableval} for multilib option) ;;
esac], [multilib=yes])dnl
dnl Support --enable-target-optspace
AC_ARG_ENABLE(target-optspace,
[ --enable-target-optspace optimize for space],
[case "${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 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)
AC_CANONICAL_SYSTEM
AM_INIT_AUTOMAKE(newlib, 1.13.0)
# FIXME: We temporarily define our own version of AC_PROG_CC. This is
# copied from autoconf 2.12, but does not call AC_PROG_CC_WORKS. We
# are probably using a cross compiler, which will not be able to fully
# link an executable. This should really be fixed in autoconf
# itself.
AC_DEFUN(LIB_AC_PROG_CC,
[AC_BEFORE([$0], [AC_PROG_CPP])dnl
AC_CHECK_PROG(CC, gcc, gcc)
if test -z "$CC"; then
AC_CHECK_PROG(CC, cc, cc, , , /usr/ucb/cc)
test -z "$CC" && AC_MSG_ERROR([no acceptable cc found in \$PATH])
fi
AC_PROG_CC_GNU
if test $ac_cv_prog_gcc = yes; then
GCC=yes
dnl Check whether -g works, even if CFLAGS is set, in case the package
dnl plays around with CFLAGS (such as to build both debugging and
dnl normal versions of a library), tasteless as that idea is.
ac_test_CFLAGS="${CFLAGS+set}"
ac_save_CFLAGS="$CFLAGS"
CFLAGS=
AC_PROG_CC_G
if test "$ac_test_CFLAGS" = set; then
CFLAGS="$ac_save_CFLAGS"
elif test $ac_cv_prog_cc_g = yes; then
CFLAGS="-g -O2"
else
CFLAGS="-O2"
fi
else
GCC=
test "${CFLAGS+set}" = set || CFLAGS="-g"
fi
])
LIB_AC_PROG_CC
AC_CHECK_TOOL(AS, as)
AC_CHECK_TOOL(AR, ar)
AC_CHECK_TOOL(RANLIB, ranlib, :)
AC_PROG_INSTALL
AM_MAINTAINER_MODE
# We need AC_EXEEXT to keep automake happy in cygnus mode. However,
# at least currently, we never actually build a program, so we never
# need to use $(EXEEXT). Moreover, the test for EXEEXT normally
# fails, because we are probably configuring with a cross compiler
# which can't create executables. So we include AC_EXEEXT to keep
# automake happy, but we don't execute it, since we don't care about
# the result.
if false; then
AC_EXEEXT
fi
. [$]{newlib_basedir}/configure.host
newlib_cflags="[$]{newlib_cflags} -fno-builtin"
NEWLIB_CFLAGS=${newlib_cflags}
AC_SUBST(NEWLIB_CFLAGS)
LDFLAGS=${ldflags}
AC_SUBST(LDFLAGS)
AM_CONDITIONAL(ELIX_LEVEL_0, test x[$]{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)
AM_CONDITIONAL(USE_LIBTOOL, test x[$]{use_libtool} = xyes)
# Hard-code OBJEXT. Normally it is set by AC_OBJEXT, but we
# use oext, which is set in configure.host based on the target platform.
OBJEXT=${oext}
AC_SUBST(OBJEXT)
AC_SUBST(oext)
AC_SUBST(aext)
AC_SUBST(libm_machine_dir)
AC_SUBST(machine_dir)
AC_SUBST(sys_dir)
])
|
