Commit b0359619 authored by sof's avatar sof

[project @ 1997-09-03 23:53:03 by sof]

Moved feature tests from configure.in to aclocal.m4 and macroified them
parent 106d45f2
#
# extra autoconf macros for Glasgow fptools distribution
# Extra autoconf macros for the Glasgow fptools
#
#
......@@ -56,8 +56,15 @@ dnl ** check for leading underscores in symbol names
# We assume that they _haven't_ if anything goes wrong.
#
AC_DEFUN(AC_UNDERSCORE,
[AC_CHECK_LIB(elf, elf_begin, LIBS="-lelf $LIBS")dnl
[AC_CHECK_LIB(elf, nlist, LIBS="-lelf $LIBS")dnl
AC_CACHE_CHECK([leading underscore in symbol names], ac_cv_lead_uscore,
[#
# Hack!: nlist() under Digital UNIX insist on there being an _,
# but symbol table listings show none. What is going on here?!?
#
if test $HostPlatform = "alpha-dec-osf1"; then
ac_cv_lead_uscore='no'
else
AC_TRY_RUN([#ifdef HAVE_NLIST_H
#include <nlist.h>
changequote(<<, >>)dnl
......@@ -75,18 +82,236 @@ char **argv;
changequote([, ])dnl
#endif
exit(1);
}], ac_cv_lead_uscore=yes, ac_cv_lead_uscore=no, ac_cv_lead_uscore=NO)),
}], ac_cv_lead_uscore=yes, ac_cv_lead_uscore=no, ac_cv_lead_uscore=NO)
fi
])
LeadingUnderscore=`echo $ac_cv_lead_uscore | sed 'y/yesno/YESNO/'`
AC_SUBST(LeadingUnderscore)
])
#
# Hack!: nlist() under Digital UNIX insist on there being an _,
# but symbol table listings show none. What is going on here?!?
# Check for Happy and version.
#
if test $HostPlatform = "alpha-dec-osf1"; then
LeadingUnderscore=NO
AC_DEFUN(AC_HAPPY,
[AC_PATH_PROG(HappyCmd,happy)
AC_CACHE_CHECK([for version of happy], ac_cv_happy_version,
[if test x"$HappyCmd" != x; then
ac_cv_happy_version="`$HappyCmd -v |
changequote(, )dnl
grep 'Happy Version' | sed -e 's/Happy Version \([^ ]*\).*/\1/g'`" ;
changequote([, ])dnl
else
LeadingUnderscore=`echo $ac_cv_lead_uscore | sed 'y/yesno/YESNO/'`
ac_cv_happy_version="";
fi;
test -n "$verbose" && echo " setting LeadingUnderscore to $LeadingUnderscore"
AC_SUBST(LeadingUnderscore)
])
HappyVersion=$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
]),
ContextDiffCmd=$ac_cv_context_diffs
AC_SUBST(ContextDiffCmd)
])
#
# Finding the Right Yacc
#
AC_DEFUN(AC_PROG_YACCY,
[AC_PROG_YACC
if test "$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)
])
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
cmd_string="`$CC -v 2>&1 | grep 'version ' | sed -e 's/.*version \(egcs-\)\?\([0-9][0-9]*\)\.\([0-9][0-9]*\).*/expr 20 \\\< \2 \\\* 10 + \3/g' `"
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,
[AC_CACHE_CHECK([how to invoke cpp directly], ac_cv_gnu_cpp,
[if echo $CPP | grep gcc >/dev/null 2>&1; then
echo > conftest.c
gcc -v -E conftest.c >/dev/null 2>conftest.out
echo '/(\S+(\/|\\\\)cpp)/ && print "[$]1";' > conftest.pl
# GNUCPP: used in jmake.c (GnuCppCmd) and in mkdependC
# (where we could do with the usual pre-#defines)
ac_cv_gnu_cpp="`eval $PerlCmd -n conftest.pl conftest.out`"
rm -fr conftest*
else
# It is likely that this will go terribly wrong..
ac_cv_gnu_cpp='cc -E'
fi
])
GNUCPP=$ac_cv_gnu_cpp
if test "$GNUCPP" = "cc -E"; then
RAWCPP="$GNUCPP"
else
RAWCPP="$GNUCPP -traditional"
fi
AC_SUBST(GNUCPP)
AC_SUBST(RAWCPP)
])
#
# Small feature test for perl version. Assumes PerlCmd
# contains path to perl binary
#
AC_DEFUN(AC_CHECK_PERL_VERSION,
[$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*
])
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