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
|
dnl -*- shell-script -*-
dnl
dnl Copyright (c) 2001-2003 The Trustees of Indiana University.
dnl All rights reserved.
dnl Copyright (c) 1998-2001 University of Notre Dame.
dnl All rights reserved.
dnl Copyright (c) 1994-1998 The Ohio State University.
dnl All rights reserved.
dnl
dnl This file is part of the LAM/MPI software package. For license
dnl information, see the LICENSE file in the top level directory of the
dnl LAM/MPI source distribution.
dnl
dnl $Id: lam_setup_cc.m4,v 1.13 2003/11/02 23:05:54 brbarret Exp $
dnl
define(LAM_SETUP_CC,[
# Modularize this setup so that sub-configure.in scripts can use this
# same setup code.
lam_show_subtitle "C compiler and preprocessor"
#
# check for specification of C compiler
#
AC_ARG_WITH(cc,
AC_HELP_STRING([--with-cc=CC],
[DEPRECATED: use the env variable CC instead]),
[AC_MSG_WARN([The --with-cc flag is deprecated. Use the CC])
AC_MSG_WARN([environment variable instead.])
AC_MSG_ERROR([Cannot continue])])
#
# check for specification of C compiler flags
#
AC_ARG_WITH(cflags,
AC_HELP_STRING([--with-cflags],
[DEPRECATED: use the env variable CFLAGS instead]),
[AC_MSG_WARN([The --with-cflags flag is deprecated. Use the CFLAGS])
AC_MSG_WARN([environment variable instead.])
AC_MSG_ERROR([Cannot continue])])
#
# check for specification of LD linker flags
#
AC_ARG_WITH(ldflags,
AC_HELP_STRING([--with-ldflags],
[DEPRECATED: use the env variable LDFLAGS instead]),
[AC_MSG_WARN([The --with-ldflags flag is deprecated. Use the LDFLAGS])
AC_MSG_WARN([environment variable instead.])
AC_MSG_ERROR([Cannot continue])])
#
# Do we want debugging? - down here so we can change CFLAGS
#
AC_MSG_CHECKING([if want debugging output support])
AC_ARG_WITH(debug,
[ --with-debug enable debugging output (maintainers only)])
if test -n "$with_debug" -a "$with_debug" = "yes"; then
AC_MSG_RESULT([yes])
WANT_DEBUG=1
else
AC_MSG_RESULT([no])
WANT_DEBUG=0
fi
AC_DEFINE_UNQUOTED(LAM_WANT_DEBUG, $WANT_DEBUG, [LAM debug flag])
#
# Check for the compiler
#
lam_cflags_save="$CFLAGS"
AC_PROG_CC
AC_PROG_GCC_TRADITIONAL
BASECC="`basename $CC`"
CFLAGS="$lam_cflags_save"
AC_DEFINE_UNQUOTED(LAM_CC, "$CC", [LAM underlying C compiler])
# $%@#!@#% AIX!!
AC_AIX
# Take care of some specific compiler options.
# Force use of ANSI C under HP-UX.
AC_MSG_CHECKING([if need special C compiler/linker flags])
FLAGS="none needed"
case "$host" in
*hpux*)
if test "$GCC" = "no"; then
FLAGS="-Ae"
if test "$CPPFLAGS" != ""; then
CPPFLAGS="$CPPFLAGS $FLAGS"
else
CPPFLAGS="$FLAGS"
fi
if test "$CFLAGS" != ""; then
CFLAGS="$CFLAGS $FLAGS"
else
CFLAGS="$FLAGS"
fi
fi
;;
*irix*)
if test "$GCC" = "no"; then
FLAGS="-Wl,-woff,84"
LDFLAGS="$LDFLAGS $FLAGS"
CFLAGS="$CFLAGS $FLAGS"
fi
;;
*sco-sysv*)
# This seems to be necessary on SCO unix to get sendmsg and others
# to compile/link/run properly. There's a note in
# /usr/include/socket.h on SCO about this. Weird.
FLAGS="-DSVR4"
CPPFLAGS="$FLAGS $CPPFLAGS"
esac
AC_MSG_RESULT([$FLAGS])
# When building LAM, we need this everywhere
CPPFLAGS="$CPPFLAGS -DLAM_BUILDING=1"
# Do we want debugging?
if test "$WANT_DEBUG" = "1"; then
if test "$GCC" = "yes"; then
add="-g -Wall -Wundef -Wno-long-long"
# see if -Wno-long-double works...
CFLAGS_orig="$CFLAGS"
CFLAGS="$CFLAGS -Wno-long-double"
AC_TRY_COMPILE([], [], add="$add -Wno-long-double")
CFLAGS="$CFLAGS_orig"
add="$add -Werror-implicit-function-declaration "
else
add="-g"
fi
CFLAGS="$CFLAGS $add"
LAM_UNIQ(CFLAGS)
AC_MSG_WARN([$add has been added to CFLAGS (--with-debug)])
unset add
fi
# Preload the optflags for the case where the user didn't specify any.
# If we're using GNU compilers, use -O3 (since it GNU doesn't require
# all compilation units to be compiled with the same level of
# optimization -- selecting a high level of optimization is not
# prohibitive). If we're using anything else, be conservative and
# just use -O.
if test "$GCC" = yes; then
OPTFLAGS="-O3"
else
OPTFLAGS="-O"
fi
LAM_CHECK_OPTFLAGS("$CFLAGS")
AC_MSG_CHECKING([for C optimization flags])
AC_MSG_RESULT([$co_result])
CFLAGS="$co_result"
])
|
