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
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
|
##########################################################################
# This file contains various auxiliary autoconf macros, adapted from
# the FFTW 2.1.3 package (www.fftw.org). FFTW is under the GNU GPL too,
# so there are no licensing troubles. This stuff is copyright (c)
# 1999 by the Massachusetts Institute of Technology.
##########################################################################
AC_DEFUN(ACX_CHECK_CC_FLAGS,
[
AC_REQUIRE([AC_PROG_CC])
AC_CACHE_CHECK(whether ${CC-cc} accepts $1, ac_$2,
[echo 'void f(){}' > conftest.c
if test -z "`${CC-cc} $1 -c conftest.c 2>&1`"; then
ac_$2=yes
else
ac_$2=no
fi
rm -f conftest*
])
if test "$ac_$2" = yes; then
:
$3
else
:
$4
fi
])
AC_DEFUN(ACX_PROG_GCC_VERSION,
[
AC_REQUIRE([AC_PROG_CC])
AC_CACHE_CHECK(whether we are using gcc $1.$2 or later, ac_cv_prog_gcc_$1_$2,
[
dnl The semicolon after "yes" below is to pacify NeXT's syntax-checking cpp.
cat > conftest.c <<EOF
#ifdef __GNUC__
# if (__GNUC__ > $1) || (__GNUC__ == $1 && __GNUC_MINOR__ >= $2)
yes;
# endif
#endif
EOF
if AC_TRY_COMMAND(${CC-cc} -E conftest.c) | egrep yes >/dev/null 2>&1; then
ac_cv_prog_gcc_$1_$2=yes
else
ac_cv_prog_gcc_$1_$2=no
fi
])
if test "$ac_cv_prog_gcc_$1_$2" = yes; then
:
$3
else
:
$4
fi
])
AC_DEFUN(ACX_PROG_CC_EGCS,
[ACX_PROG_GCC_VERSION(2,90,acx_prog_egcs=yes,acx_prog_egcs=no)])
AC_DEFUN(ACX_PROG_CC_MAXOPT,
[
AC_REQUIRE([AC_PROG_CC])
AC_REQUIRE([ACX_PROG_CC_EGCS])
AC_REQUIRE([AC_CANONICAL_HOST])
# Try to determine "good" native compiler flags if none specified on command
# line. This is modified from the FFTW version to be a little more
# conservative, and to not complain so much to the user when good flags
# aren't found.
if test "$ac_test_CFLAGS" != "set"; then
CFLAGS=""
case "${host_cpu}-${host_os}" in
*linux*)
echo "*******************************************************"
echo "* Congratulations! You are running Linux. *"
echo "*******************************************************"
;;
sparc-solaris2*) if test "$CC" = cc; then
CFLAGS="-native -fast -xO5 -dalign"
fi;;
alpha*-osf*) if test "$CC" = cc; then
CFLAGS="-newc -w0 -O5 -fp_reorder -tune host -arch host -std1"
fi;;
hppa*-hpux*) if test "$CC" = cc; then
CFLAGS="-Ae +O3 +Oall"
fi;;
*-aix*) if test "$CC" = cc -o "$CC" = xlc; then
CFLAGS="-O3 -w"
fi;;
esac
# use default flags for gcc on all systems
if test $ac_cv_prog_gcc = yes; then
CFLAGS="-O6 -fomit-frame-pointer"
fi
# test for gcc-specific flags:
if test $ac_cv_prog_gcc = yes; then
# -malign-double for x86 systems
ACX_CHECK_CC_FLAGS(-malign-double,align_double,
CFLAGS="$CFLAGS -malign-double")
fi
CPU_FLAGS=""
if test "$GCC" = "yes"; then
dnl try to guess correct CPU flags, at least for linux
case "${host_cpu}" in
i586*) ACX_CHECK_CC_FLAGS(-mcpu=pentium,cpu_pentium,
[CPU_FLAGS=-mcpu=pentium],
[ACX_CHECK_CC_FLAGS(-mpentium,pentium,
[CPU_FLAGS=-mpentium])])
;;
i686*) ACX_CHECK_CC_FLAGS(-mcpu=pentiumpro,cpu_pentiumpro,
[CPU_FLAGS=-mcpu=pentiumpro],
[ACX_CHECK_CC_FLAGS(-mpentiumpro,pentiumpro,
[CPU_FLAGS=-mpentiumpro])])
;;
powerpc*)
cputype=`(grep cpu /proc/cpuinfo | head -1 | cut -d: -f2 | sed 's/ //g') 2> /dev/null`
is60x=`echo $cputype | egrep "^60[0-9]e?$"`
if test -n "$is60x"; then
ACX_CHECK_CC_FLAGS(-mcpu=$cputype,m_cpu_60x,
CPU_FLAGS=-mcpu=$cputype)
elif test "$cputype" = 750; then
ACX_PROG_GCC_VERSION(2,95,
ACX_CHECK_CC_FLAGS(-mcpu=750,m_cpu_750,
CPU_FLAGS=-mcpu=750))
fi
if test -z "$CPU_FLAGS"; then
ACX_CHECK_CC_FLAGS(-mcpu=powerpc,m_cpu_powerpc,
CPU_FLAGS=-mcpu=powerpc)
fi
if test -z "$CPU_FLAGS"; then
ACX_CHECK_CC_FLAGS(-mpowerpc,m_powerpc,
CPU_FLAGS=-mpowerpc)
fi
esac
fi
if test -n "$CPU_FLAGS"; then
CFLAGS="$CFLAGS $CPU_FLAGS"
fi
if test -z "$CFLAGS"; then
echo "Don't know good CFLAGS...guessing -O3."
ACX_CHECK_CC_FLAGS(-O3,opt3,CFLAGS="-O3")
if test -z "$CFLAGS"; then
echo "-O3 didn't work...guessing -O."
ACX_CHECK_CC_FLAGS(-O,opt1,CFLAGS="-O")
fi
else
ACX_CHECK_CC_FLAGS(${CFLAGS}, guessed_cflags, , [
echo "Guessed CFLAGS don't seem to work...disabling optimization."
CFLAGS=""
])
fi
fi
])
dnl---------------------------------------------------------------------------
dnl detect Fortran name-mangling scheme
AC_DEFUN(ACX_F77_FUNC_MANGLE,
[
AC_REQUIRE([AC_PROG_CC])
AC_REQUIRE([AC_PROG_F77])
AC_REQUIRE([AC_F77_LIBRARY_LDFLAGS])
AC_MSG_CHECKING(how f77 mangles function names)
cat > mangle-func.f <<EOF
subroutine foobar()
return
end
subroutine foo_bar()
return
end
EOF
ac_try='$F77 -c $FFLAGS mangle-func.f 1>&AC_FD_CC'
if AC_TRY_EVAL(ac_try); then
ac_try=""
else
echo "configure: failed program was:" >&AC_FD_CC
cat mangle-func.f >&AC_FD_CC
rm -f mangle-func*
AC_MSG_ERROR(failed to compile fortran test program)
fi
ac_f77_mangle_type=unknown
AC_LANG_SAVE
AC_LANG_C
ac_save_LIBS="$LIBS"
LIBS="mangle-func.o $FLIBS $LIBS"
AC_TRY_LINK(,foobar();,
ac_f77_mangle_type=lowercase,
AC_TRY_LINK(,foobar_();,
ac_f77_mangle_type=lowercase-underscore,
AC_TRY_LINK(,FOOBAR();,
ac_f77_mangle_type=uppercase,
AC_TRY_LINK(,FOOBAR_();,
ac_f77_mangle_type=uppercase-underscore))))
LIBS="$ac_save_LIBS"
AC_LANG_RESTORE
AC_MSG_RESULT($ac_f77_mangle_type)
mangle_try=unknown
case $ac_f77_mangle_type in
lowercase)
AC_DEFINE(FORTRANIZE_LOWERCASE)
mangle_try=foo_bar_
;;
lowercase-underscore)
AC_DEFINE(FORTRANIZE_LOWERCASE_UNDERSCORE)
mangle_try=foo_bar__
;;
uppercase)
AC_DEFINE(FORTRANIZE_UPPERCASE)
mangle_try=FOO_BAR_
;;
uppercase-underscore)
AC_DEFINE(FORTRANIZE_UPPERCASE_UNDERSCORE)
mangle_try=FOO_BAR__
;;
esac
AC_MSG_CHECKING(if f77 functions with an underscore get an extra underscore)
AC_LANG_SAVE
AC_LANG_C
ac_save_LIBS="$LIBS"
LIBS="mangle-func.o $FLIBS $LIBS"
AC_TRY_LINK(,$mangle_try();,
[ac_f77_mangle_underscore=yes;
AC_DEFINE(FORTRANIZE_EXTRA_UNDERSCORE)],
[ac_f77_mangle_underscore=no])
LIBS="$ac_save_LIBS"
AC_LANG_RESTORE
rm -f mangle-func*
AC_MSG_RESULT($ac_f77_mangle_underscore)
])
dnl like AC_SUBST, but replace XXX_variable_XXX instead of @variable@
dnl This macro protects VARIABLE from being diverted twice
dnl if this macro is called twice for it.
dnl AC_SUBST(VARIABLE)
define(ACX_SUBST_XXX,
[ifdef([ACX_SUBST_XXX_$1], ,
[define([ACX_SUBST_XXX_$1], )dnl
AC_DIVERT_PUSH(AC_DIVERSION_SED)dnl
s=XXX_$1_XXX=[$]$1=g
AC_DIVERT_POP()dnl
])])
|
