aclocal.m4 11.3 KB
Newer Older
sof's avatar
sof committed
1
dnl $Id: aclocal.m4,v 1.27 1998/08/16 16:45:37 sof Exp $
sof's avatar
sof committed
2 3 4
dnl 
dnl Extra autoconf macros for the Glasgow fptools
dnl
sof's avatar
sof committed
5 6 7
dnl To be a good autoconf citizen, names of local macros have
dnl prefixed with FPTOOLS_ to ensure we don't clash
dnl with any pre-supplied autoconf ones.
sof's avatar
sof committed
8

sof's avatar
sof committed
9 10 11 12
dnl
dnl Has timezone the type time_t or long (HP-UX 10.20 apparently
dnl has `long'..)
dnl 
sof's avatar
sof committed
13 14
AC_DEFUN(FPTOOLS_TYPE_TIMEZONE,
[AC_CACHE_CHECK([type of timezone], fptools_cv_type_timezone,
sof's avatar
sof committed
15 16 17 18 19 20 21 22 23 24 25 26 27
[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;
],
sof's avatar
sof committed
28 29
[int i;], fptools_cv_type_timezone=time_t, fptools_cv_type_timezone=long)])
AC_DEFINE_UNQUOTED(TYPE_TIMEZONE, $fptools_cv_type_timezone)
sof's avatar
sof committed
30 31
])

sof's avatar
sof committed
32 33
dnl *** Is altzone available? ***
dnl 
sof's avatar
sof committed
34 35
AC_DEFUN(FPTOOLS_ALTZONE,
[AC_CACHE_CHECK([altzone], fptools_cv_altzone,
sof's avatar
sof committed
36 37 38 39 40 41 42 43 44 45 46
[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;], 
sof's avatar
sof committed
47 48
fptools_cv_altzone=yes, fptools_cv_altzone=no)])
if test "$fptools_cv_altzone" = yes; then
sof's avatar
sof committed
49 50 51 52 53
  AC_DEFINE(HAVE_ALTZONE)
fi
])

dnl ** check for leading underscores in symbol names
sof's avatar
sof committed
54 55 56 57 58 59
dnl 
dnl Test for determining whether symbol names have a leading
dnl underscore.
dnl 
dnl We assume that they _haven't_ if anything goes wrong.
dnl
sof's avatar
sof committed
60
AC_DEFUN(FPTOOLS_UNDERSCORE,
sof's avatar
sof committed
61
[AC_CHECK_LIB(elf, nlist, LIBS="-lelf $LIBS")dnl
sof's avatar
sof committed
62
AC_CACHE_CHECK([leading underscore in symbol names], fptools_cv_lead_uscore,
sof's avatar
sof committed
63 64 65

dnl
dnl Hack!: nlist() under Digital UNIX insist on there being an _,
sof's avatar
sof committed
66
dnl but symbol table listings shows none. What is going on here?!?
sof's avatar
sof committed
67
dnl
68 69 70
changequote(<<, >>)dnl
<<
case $HostPlatform in
sof's avatar
sof committed
71
alpha-dec-osf*) fptools_cv_lead_uscore='no';;
72 73
*) >>
changequote([, ])dnl
sof's avatar
sof committed
74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90
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);
91
}], fptools_cv_lead_uscore=yes, fptools_cv_lead_uscore=no, fptools_cv_lead_uscore=NO)
92 93
;;
esac);
sof's avatar
sof committed
94
LeadingUnderscore=`echo $fptools_cv_lead_uscore | sed 'y/yesno/YESNO/'`
sof's avatar
sof committed
95
AC_SUBST(LeadingUnderscore)
96 97 98
case $LeadingUnderscore in
YES) AC_DEFINE(LEADING_UNDERSCORE);;
esac
sof's avatar
sof committed
99 100
])

sof's avatar
sof committed
101 102 103
dnl
dnl Check for Happy and version.
dnl
sof's avatar
sof committed
104
AC_DEFUN(FPTOOLS_HAPPY,
sof's avatar
sof committed
105
[AC_PATH_PROG(HappyCmd,happy)
sof's avatar
sof committed
106
AC_CACHE_CHECK([for version of happy], fptools_cv_happy_version,
sof's avatar
sof committed
107
[if test x"$HappyCmd" != x; then
sof's avatar
sof committed
108
   fptools_cv_happy_version="`$HappyCmd -v |
sof's avatar
sof committed
109 110 111
changequote(, )dnl
			  grep 'Happy Version' | sed -e 's/Happy Version \([^ ]*\).*/\1/g'`" ;
changequote([, ])dnl
sof's avatar
sof committed
112
else
sof's avatar
sof committed
113
   fptools_cv_happy_version="";
sof's avatar
sof committed
114
fi;
sof's avatar
sof committed
115
if expr "$fptools_cv_happy_version" "<" 1.4 > /dev/null 2>&1; then
116 117 118 119
   echo
   echo "Happy version 1.4 or later is required to compile GHC."
   exit 1;
fi;
sof's avatar
sof committed
120 121 122 123 124
])
HappyVersion=$ac_cv_happy_version;
AC_SUBST(HappyVersion)
])

sof's avatar
sof committed
125 126 127 128 129
dnl
dnl What's the best way of doing context diffs?
dnl
dnl (NB: NeXTStep thinks diff'ing a file against itself is "trouble")
dnl
sof's avatar
sof committed
130 131
AC_DEFUN(FPTOOLS_PROG_DIFF,
[AC_CACHE_CHECK([for ok way to do context diffs], fptools_cv_context_diffs,
sof's avatar
sof committed
132 133 134
[echo foo > conftest1
echo foo > conftest2
if diff -C 1 conftest1 conftest2 > /dev/null 2>&1 ; then
sof's avatar
sof committed
135
    fptools_cv_context_diffs='diff -C 1'
sof's avatar
sof committed
136 137
else
    if diff -c1 conftest1 conftest2 > /dev/null 2>&1 ; then
sof's avatar
sof committed
138
        fptools_cv_context_diffs='diff -c1'
sof's avatar
sof committed
139 140 141 142 143 144 145
    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
146
])
sof's avatar
sof committed
147
ContextDiffCmd=$fptools_cv_context_diffs
sof's avatar
sof committed
148
AC_SUBST(ContextDiffCmd)
sof's avatar
sof committed
149 150
])

sof's avatar
sof committed
151 152 153
dnl
dnl Finding the Right Yacc
dnl
sof's avatar
sof committed
154
AC_DEFUN(FPTOOLS_PROG_YACCY,
sof's avatar
sof committed
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
[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
184

sof's avatar
sof committed
185 186 187 188
dnl *** Checking for ar and its arguments + whether we need ranlib.
dnl
dnl ArCmd and RANLIB are AC_SUBST'ed
dnl 
sof's avatar
sof committed
189
AC_DEFUN(FPTOOLS_PROG_AR_AND_RANLIB,
sof's avatar
sof committed
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
[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
])

sof's avatar
sof committed
226
dnl
sof's avatar
sof committed
227
dnl AC_SHEBANG_PERL - can we she-bang perl?
sof's avatar
sof committed
228
dnl
sof's avatar
sof committed
229 230
AC_DEFUN(FPTOOLS_SHEBANG_PERL,
[AC_CACHE_CHECK([if your perl works in shell scripts], fptools_cv_shebang_perl,
sof's avatar
sof committed
231 232 233 234 235 236
[echo "#!$PerlCmd"'
exit $1;
' > conftest
chmod u+x conftest
(SHELL=/bin/sh; export SHELL; ./conftest 69 > /dev/null)
if test $? -ne 69; then
sof's avatar
sof committed
237
   fptools_cv_shebang_perl=yes
sof's avatar
sof committed
238
else
sof's avatar
sof committed
239
   fptools_cv_shebang_perl=no
sof's avatar
sof committed
240 241 242 243
fi
rm -f conftest
])])

sof's avatar
sof committed
244 245 246 247
dnl
dnl Extra testing of the result AC_PROG_CC, testing the gcc version no.
dnl *Must* be called after AC_PROG_CC
dnl
sof's avatar
sof committed
248 249
AC_DEFUN(FPTOOLS_HAVE_GCC,
[AC_CACHE_CHECK([whether you have an ok gcc], fptools_cv_have_gcc,
sof's avatar
sof committed
250 251 252 253
[if test -z "$GCC"; then
    echo ''
    echo "You would be better off with gcc"
    echo "Perhaps it is already installed, but not in your PATH?"
sof's avatar
sof committed
254
    fptools_cv_have_gcc='no'
sof's avatar
sof committed
255 256
else
changequote(, )dnl
sof's avatar
sof committed
257
    cmd_string="`$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
258 259 260 261 262 263
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
sof's avatar
sof committed
264
    fptools_cv_have_gcc='yes'
sof's avatar
sof committed
265 266
fi
])
sof's avatar
sof committed
267
HaveGcc=`echo $fptools_cv_have_gcc | sed 'y/yesno/YESNO/'`
sof's avatar
sof committed
268 269 270
AC_SUBST(HaveGcc)
])

sof's avatar
sof committed
271
dnl
sof's avatar
sof committed
272
dnl FPTOOLS_PROG_GNUCPP gathers the path to the cpp that the
sof's avatar
sof committed
273 274 275 276
dnl gcc driver calls upon.
dnl
dnl Substitutes: GNUCPP and RAWCPP (latter is 'GNUCPP -traditional')
dnl
sof's avatar
sof committed
277 278
AC_DEFUN(FPTOOLS_PROG_GNUCPP,
[AC_CACHE_CHECK([how to invoke GNU cpp directly], fptools_cv_gnu_cpp,
279 280 281
[if test "$HaveGcc" = "YES"; then
	echo > conftest.c
	gcc -v -E conftest.c >/dev/null 2>conftest.out
sof's avatar
sof committed
282
	# \x5c = backslash
sof's avatar
sof committed
283
	echo 'tr/\x5c/\//; /(\S+\/)cpp/ && print "[$]{1}cpp -iprefix [$]1";' > conftest.pl
sof's avatar
sof committed
284
	fptools_cv_gnu_cpp="`eval $PerlCmd -n conftest.pl conftest.out`"
285 286 287 288 289 290 291
	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
sof's avatar
sof committed
292
	fptools_cv_gnu_cpp = $CPP
293
 fi
sof's avatar
sof committed
294
])
sof's avatar
sof committed
295
GNUCPP=$fptools_cv_gnu_cpp
296
RAWCPP="$GNUCPP -traditional"
sof's avatar
sof committed
297 298 299 300
AC_SUBST(GNUCPP)
AC_SUBST(RAWCPP)
])

sof's avatar
sof committed
301 302 303
dnl Small feature test for perl version. Assumes PerlCmd
dnl contains path to perl binary
dnl
sof's avatar
sof committed
304
AC_DEFUN(FPTOOLS_CHECK_PERL_VERSION,
sof's avatar
sof committed
305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329
[$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*
])
reid's avatar
reid committed
330

sof's avatar
sof committed
331
dnl ** figure out the alignment restriction of a type
reid's avatar
reid committed
332 333 334
dnl    (required SIZEOF test but AC_CHECK_SIZEOF doesn't call PROVIDE
dnl     so we can't call REQUIRE)

sof's avatar
sof committed
335 336
dnl FPTOOLS_CHECK_ALIGNMENT(TYPE)
AC_DEFUN(FPTOOLS_CHECK_ALIGNMENT,
reid's avatar
reid committed
337 338 339 340 341 342 343 344 345 346 347
[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([
sof's avatar
sof committed
348 349 350 351 352 353 354 355
#include <stdio.h>
#if HAVE_STDDEF_H
#include <stddef.h>
#endif
#ifndef offsetof
#define offsetof(ty,field) ((size_t)((char *)&((ty *)0)->field - (char *)(ty *)0))
#endif
int
reid's avatar
reid committed
356 357
main()
{
sof's avatar
sof committed
358 359 360 361 362 363
  FILE *f=fopen("conftestval", "w");
  if (!f) exit(1);
  fprintf(f, "%d\n", offsetof(struct { char c; $1 ty;},ty));
  exit(0);
}],
AC_CV_NAME=`cat conftestval`,
reid's avatar
reid committed
364 365 366 367 368 369 370 371 372 373
AC_CV_NAME=$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
])

sof's avatar
sof committed
374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398
dnl ** figure out whether C compiler supports 'long long's
dnl    (Closely based on Andreas Zeller's macro for testing
dnl     for this under C++)
dnl
dnl    If the C compiler supports `long long' types,
dnl    define `HAVE_LONG_LONG'.
dnl
AC_DEFUN(FPTOOLS_C_LONG_LONG,
[
AC_REQUIRE([AC_PROG_CC])
AC_MSG_CHECKING(whether ${CC} supports long long types)
AC_CACHE_VAL(fptools_cv_have_long_long,
[
AC_LANG_SAVE
AC_LANG_C
AC_TRY_COMPILE(,[long long a;],
fptools_cv_have_long_long=yes,
fptools_cv_have_long_long=no)
AC_LANG_RESTORE
])
AC_MSG_RESULT($fptools_cv_have_long_long)
if test "$fptools_cv_have_long_long" = yes; then
AC_DEFINE(HAVE_LONG_LONG)
fi
])
sof's avatar
sof committed
399 400 401 402 403 404 405 406 407 408 409

dnl *** Can we open files in binary mode? ***
dnl 
AC_DEFUN(FPTOOLS_O_BINARY,
[
AC_REQUIRE([AC_PROG_CC])
AC_MSG_CHECKING(whether we can open files in binary mode)
AC_CACHE_VAL(fptools_cv_have_o_binary,
[
AC_LANG_SAVE
AC_LANG_C
sof's avatar
sof committed
410 411 412 413 414
AC_TRY_COMPILE(,
[#ifdef HAVE_FCNTL_H
#include <fcntl.h>
#endif
int x = O_BINARY;],
sof's avatar
sof committed
415 416 417 418 419 420 421 422 423
fptools_cv_have_o_binary=yes,
fptools_cv_have_o_binary=no)
AC_LANG_RESTORE
])
AC_MSG_RESULT($fptools_cv_have_o_binary)
if test "$fptools_cv_have_o_binary" = yes; then
AC_DEFINE(HAVE_O_BINARY)
fi
])
sof's avatar
sof committed
424