aclocal.m4 9.88 KB
Newer Older
1
# $Id: aclocal.m4,v 1.20 1998/03/03 19:04:48 reid Exp $
sof's avatar
sof committed
2
#
sof's avatar
sof committed
3
# Extra autoconf macros for the Glasgow fptools
sof's avatar
sof committed
4 5
#

6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22
#
# Are we running under the GNU libc?  Need -D_GNU_SOURCE to get 
# caddr_t and such.
#
AC_DEFUN(AC_GNU_LIBC,
[AC_CACHE_CHECK([GNU libc], ac_cv_gnu_libc,
[AC_EGREP_CPP(yes,
[#include <features.h>
#ifdef __GLIBC__
yes
#endif
], ac_cv_gnu_libc=yes, ac_cv_gnu_libc=no)])
if test "$ac_cv_gnu_libc" = yes; then
  AC_DEFINE(_GNU_SOURCE)
fi
])

sof's avatar
sof committed
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
#
# Has timezone the type time_t or long (HP-UX 10.20 apparently
# has `long'..)
#
AC_DEFUN(AC_TYPE_TIMEZONE,
[AC_CACHE_CHECK([type of timezone], ac_cv_type_timezone,
[AC_TRY_COMPILE([#if TIME_WITH_SYS_TIME
# include <sys/time.h>
# include <time.h>
#else
# if HAVE_SYS_TIME_H
#  include <sys/time.h>
# else
#  include <time.h>
# endif
#endif

extern time_t timezone;
],
[int i;], ac_cv_type_timezone=time_t, ac_cv_type_timezone=long)])
AC_DEFINE_UNQUOTED(TYPE_TIMEZONE, $ac_cv_type_timezone)
])

#
# Is altzone available?
#
AC_DEFUN(AC_ALTZONE,
[AC_CACHE_CHECK([altzone], ac_cv_altzone,
[AC_TRY_LINK([#if TIME_WITH_SYS_TIME
# include <sys/time.h>
# include <time.h>
#else
# if HAVE_SYS_TIME_H
#  include <sys/time.h>
# else
#  include <time.h>
# endif
#endif
], [return altzone;], 
ac_cv_altzone=yes, ac_cv_altzone=no)])
if test "$ac_cv_altzone" = yes; then
  AC_DEFINE(HAVE_ALTZONE)
fi
])

#
dnl ** check for leading underscores in symbol names
#
# Test for determining whether symbol names have a leading
# underscore.
#
# We assume that they _haven't_ if anything goes wrong.
#
AC_DEFUN(AC_UNDERSCORE,
sof's avatar
sof committed
77
[AC_CHECK_LIB(elf, nlist, LIBS="-lelf $LIBS")dnl
sof's avatar
sof committed
78
AC_CACHE_CHECK([leading underscore in symbol names], ac_cv_lead_uscore,
79
#
sof's avatar
sof committed
80 81 82
# Hack!: nlist() under Digital UNIX insist on there being an _,
# but symbol table listings show none. What is going on here?!?
#
83 84 85 86 87 88
changequote(<<, >>)dnl
<<
case $HostPlatform in
alpha-dec-osf*) ac_cv_lead_uscore='no';;
*) >>
changequote([, ])dnl
sof's avatar
sof committed
89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105
AC_TRY_RUN([#ifdef HAVE_NLIST_H
#include <nlist.h>
changequote(<<, >>)dnl
<<
struct nlist xYzzY[] = {{"_xYzzY", 0},{0}};
#endif

main(argc, argv)
int argc;
char **argv;
{
#ifdef HAVE_NLIST_H
    if(nlist(argv[0], xYzzY) == 0 && xYzzY[0].n_value != 0)
        exit(0);>>
changequote([, ])dnl
#endif
    exit(1);
sof's avatar
sof committed
106
}], ac_cv_lead_uscore=yes, ac_cv_lead_uscore=no, ac_cv_lead_uscore=NO)
107 108
;;
esac);
sof's avatar
sof committed
109 110 111 112
LeadingUnderscore=`echo $ac_cv_lead_uscore | sed 'y/yesno/YESNO/'`
AC_SUBST(LeadingUnderscore)
])

sof's avatar
sof committed
113
#
sof's avatar
sof committed
114
# Check for Happy and version.
sof's avatar
sof committed
115
#
sof's avatar
sof committed
116 117 118 119 120 121 122 123
AC_DEFUN(AC_HAPPY,
[AC_PATH_PROG(HappyCmd,happy)
AC_CACHE_CHECK([for version of happy], ac_cv_happy_version,
[if test x"$HappyCmd" != x; then
   ac_cv_happy_version="`$HappyCmd -v |
changequote(, )dnl
			  grep 'Happy Version' | sed -e 's/Happy Version \([^ ]*\).*/\1/g'`" ;
changequote([, ])dnl
sof's avatar
sof committed
124
else
sof's avatar
sof committed
125
   ac_cv_happy_version="";
sof's avatar
sof committed
126
fi;
127 128 129 130 131
if expr "$ac_cv_happy_version" "<" 1.4 > /dev/null 2>&1; then
   echo
   echo "Happy version 1.4 or later is required to compile GHC."
   exit 1;
fi;
sof's avatar
sof committed
132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157
])
HappyVersion=$ac_cv_happy_version;
AC_SUBST(HappyVersion)
])

#
# What's the best way of doing context diffs?
#
# (NB: NeXTStep thinks diff'ing a file against itself is "trouble")
#
AC_DEFUN(AC_PROG_DIFF,
[AC_CACHE_CHECK([for ok way to do context diffs], ac_cv_context_diffs,
[echo foo > conftest1
echo foo > conftest2
if diff -C 1 conftest1 conftest2 > /dev/null 2>&1 ; then
    ac_cv_context_diffs='diff -C 1'
else
    if diff -c1 conftest1 conftest2 > /dev/null 2>&1 ; then
        ac_cv_context_diffs='diff -c1'
    else
        echo "Can't figure out how to do context diffs."
        echo "Neither \`diff -C 1' nor \`diff -c1' works."
        exit 1
    fi
fi
rm -f conftest1 conftest2
158
])
sof's avatar
sof committed
159 160
ContextDiffCmd=$ac_cv_context_diffs
AC_SUBST(ContextDiffCmd)
sof's avatar
sof committed
161 162
])

sof's avatar
sof committed
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
#
# Finding the Right Yacc
#
AC_DEFUN(AC_PROG_YACCY,
[AC_PROG_YACC
if test "$YACC" = "yacc"; then
   AC_CACHE_CHECK([if it is an OK yacc], ac_cv_prog_yacc,
   [AC_CHECK_PROG(WhatCmd, what, what, :)
    $WhatCmd $YACC > conftest.out
    if egrep 'y1\.c 1\..*SMI' conftest.out >/dev/null 2>&1; then
        echo "I don't trust your $YaccCmd; it looks like an old Sun yacc"
        if test -f /usr/lang/yacc; then
           echo "I'm going to use /usr/lang/yacc instead"
           ac_cv_prog_yacc=/usr/lang/yacc
        else
           echo "I'm assuming the worst...no parser generator at all"
           ac_cv_prog_yacc=:
        fi
    elif egrep 'y1\.c.*Revision: 4\.2\.6\.3.*DEC' conftest.out >/dev/null 2>&1; then
        echo "I don't trust your $YaccCmd; it looks like a lame DEC yacc"
        echo "I'm assuming the worst...no parser generator at all"
        ac_cv_prog_yacc=:
    else
	ac_cv_prog_yacc=$YACC
    fi
    rm -fr conftest*
])
else
    ac_cv_prog_yacc=$YACC
fi
YaccCmd=$ac_cv_prog_yacc
AC_SUBST(YaccCmd)
])
sof's avatar
sof committed
196

sof's avatar
sof committed
197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268
dnl Checking for ar and its arguments + whether we need ranlib.
#
# ArCmd and RANLIB are AC_SUBST'ed
#
AC_DEFUN(AC_PROG_AR_AND_RANLIB,
[AC_PATH_PROG(ArCmd,ar)
if test -z "$ArCmd"; then
    echo "You don't seem to have ar in your PATH...I have no idea how to make a library"
    exit 1;
fi
if $ArCmd clqs conftest.a >/dev/null 2>/dev/null; then
    ArCmd="$ArCmd clqs"
    NeedRanLib=''
elif $ArCmd cqs conftest.a >/dev/null 2>/dev/null; then
    ArCmd="$ArCmd cqs"
    NeedRanLib=''
elif $ArCmd clq conftest.a >/dev/null 2>/dev/null; then
    ArCmd="$ArCmd clq"
    NeedRanLib='YES'
elif $ArCmd cq conftest.a >/dev/null 2>/dev/null; then
    ArCmd="$ArCmd cq"
    NeedRanLib='YES'
elif $ArCmd cq conftest.a 2>&1 | grep 'no archive members specified' >/dev/null 2>/dev/null; then
    ArCmd="$ArCmd cq"
    NeedRanLib='YES'
else
    echo "I can't figure out how to use your $ArCmd"
    exit 1
fi
rm -rf conftest*
test -n "$ArCmd" && test -n "$verbose" && echo "        setting ArCmd to $ArCmd"
AC_SUBST(ArCmd)
if test -z "$NeedRanLib"; then
    RANLIB=':'
    test -n "$verbose" && echo "        setting RANLIB to $RANLIB"
    AC_SUBST(RANLIB)
else
    AC_PROG_RANLIB
fi
])

#
dnl AC_SHEBANG_PERL - can we she-bang perl?
#
AC_DEFUN(AC_SHEBANG_PERL,
[AC_CACHE_CHECK([if your perl works in shell scripts], ac_cv_shebang_perl,
[echo "#!$PerlCmd"'
exit $1;
' > conftest
chmod u+x conftest
(SHELL=/bin/sh; export SHELL; ./conftest 69 > /dev/null)
if test $? -ne 69; then
   ac_cv_shebang_perl=yes
else
   ac_cv_shebang_perl=no
fi
rm -f conftest
])])

#
# Extra testing of the result AC_PROG_CC, testing the gcc version no.
# *Must* be called after AC_PROG_CC
#
AC_DEFUN(AC_HAVE_GCC,
[AC_CACHE_CHECK([whether you have an ok gcc], ac_cv_have_gcc,
[if test -z "$GCC"; then
    echo ''
    echo "You would be better off with gcc"
    echo "Perhaps it is already installed, but not in your PATH?"
    ac_cv_have_gcc='no'
else
changequote(, )dnl
sof's avatar
sof committed
269
    cmd_string="`$CC -v 2>&1 | grep 'version ' | sed -e 's/.*version [^0-9]*\([0-9][0-9]*\)\.\([0-9][0-9]*\).*/expr 20 \\\< \1 \\\* 10 + \2/g' `"
sof's avatar
sof committed
270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289
changequote([, ])dnl
    if test `eval $cmd_string 2>/dev/null` != "1"; then
	echo ''
        echo "I'm not sure if your version of gcc will work,"
        echo "but it's worth a shot, eh?"
    fi
    ac_cv_have_gcc='yes'
fi
])
HaveGcc=`echo $ac_cv_have_gcc | sed 'y/yesno/YESNO/'`
AC_SUBST(HaveGcc)
])

#
# AC_PROG_GNUCPP gathers the path to the cpp that the
# gcc driver calls upon.
#
# Substitutes: GNUCPP and RAWCPP (latter is 'GNUCPP -traditional')
#
AC_DEFUN(AC_PROG_GNUCPP,
290 291 292 293
[AC_CACHE_CHECK([how to invoke GNU cpp directly], ac_cv_gnu_cpp,
[if test "$HaveGcc" = "YES"; then
	echo > conftest.c
	gcc -v -E conftest.c >/dev/null 2>conftest.out
sof's avatar
sof committed
294 295
	# \x5c = backslash
	echo 'tr/\x5c/\//; /(\S+\/cpp)/ && print "[$]1";' > conftest.pl
296
	ac_cv_gnu_cpp="`eval $PerlCmd -n conftest.pl conftest.out`"
297 298 299 300 301 302 303 304 305
	rm -fr conftest*
 else
	# We need to be able to invoke CPP directly, preferably
	# with input from stdin (mkdependHS and hscpp depend on
	# this at the moment).
	# Take a guess at what to use, this probably won't work.
	echo Warning: GNU cpp not found, using $CPP
	ac_cv_gnu_cpp =	$CPP
 fi
sof's avatar
sof committed
306 307
])
GNUCPP=$ac_cv_gnu_cpp
308
RAWCPP="$GNUCPP -traditional"
sof's avatar
sof committed
309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342
AC_SUBST(GNUCPP)
AC_SUBST(RAWCPP)
])

#
# Small feature test for perl version. Assumes PerlCmd
# contains path to perl binary
#
AC_DEFUN(AC_CHECK_PERL_VERSION,
[$PerlCmd -v >conftest.out 2>&1
if grep "version 4" conftest.out >/dev/null 2>&1; then
   if grep "Patch level: 35" conftest.out >/dev/null 2>&1; then
      echo "
************************************************************************
Uh-oh...looks like you have Perl 4.035.

Perl version 4.035 has a bug to do with recursion that will bite if
you run the lit2texi script, when making Info files from
literate files of various sorts.  Either use perl5, the last version of perl4 
(4.036), or an older version (e.g., perl 4.019). Failing that, don't create
any Info files :-)
************************************************************************
"
   fi
else
   if grep "version 5" conftest.out >/dev/null 2>&1; then
      :
   else
     echo "I'm not sure if your version of perl will work,"
     echo "but it's worth a shot, eh?"
   fi
fi
rm -fr conftest*
])
343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384

dnl ** figure out whether types can be word-aligned
dnl    (test based on test in smalltalk-1.1.5 configuration)
dnl    (required SIZEOF test but AC_CHECK_SIZEOF doesn't call PROVIDE
dnl     so we can't call REQUIRE)

dnl GHC_CHECK_ALIGNMENT(TYPE)
AC_DEFUN(GHC_CHECK_ALIGNMENT,
[changequote(<<, >>)dnl
dnl The name to #define.
define(<<AC_TYPE_NAME>>, translit(alignment_$1, [a-z *], [A-Z_P]))dnl
dnl The cache variable name.
define(<<AC_CV_NAME>>, translit(ac_cv_alignment_$1, [ *], [_p]))dnl
dnl The name of the corresponding size.
define(<<AC_CV_SIZEOF_NAME>>, translit(ac_cv_sizeof_$1, [ *], [_p]))dnl
changequote([, ])dnl
AC_MSG_CHECKING(alignment of $1)
AC_CACHE_VAL(AC_CV_NAME,
[AC_TRY_RUN([
main()
{
    unsigned int vec[3];
    $1 test, *testptr;

    test = *($1 *)&vec[1];
    testptr = ($1 *)&vec[1];
    *testptr = test;

    exit(0);
}
],
AC_CV_NAME=$ac_cv_sizeof_unsigned_int,
AC_CV_NAME=$AC_CV_SIZEOF_NAME,
AC_CV_NAME=$AC_CV_SIZEOF_NAME)])
AC_MSG_RESULT($AC_CV_NAME)
AC_DEFINE_UNQUOTED(AC_TYPE_NAME, $AC_CV_NAME)
AC_PROVIDE($AC_TYPE_NAME)
undefine([AC_TYPE_NAME])dnl
undefine([AC_CV_NAME])dnl
undefine([AC_CV_SIZEOF_NAME])dnl
])