1111 lines
32 KiB
Plaintext
1111 lines
32 KiB
Plaintext
dnl macros used for CDK configure script
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dnl -- T.Dickey <dickey@clark.net>
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dnl ---------------------------------------------------------------------------
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dnl ---------------------------------------------------------------------------
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dnl Conditionally generate script according to whether we're using the release
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dnl version of autoconf, or a patched version (using the ternary component as
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dnl the patch-version).
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define(CF_AC_PREREQ,
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[CF_PREREQ_COMPARE(
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AC_PREREQ_CANON(AC_PREREQ_SPLIT(AC_ACVERSION)),
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AC_PREREQ_CANON(AC_PREREQ_SPLIT([$1])), [$1], [$2], [$3])])dnl
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dnl ---------------------------------------------------------------------------
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dnl Add an include-directory to $CPPFLAGS. Don't add /usr/include, since it's
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dnl redundant. We don't normally need to add -I/usr/local/include for gcc,
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dnl but old versions (and some misinstalled ones) need that.
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AC_DEFUN([CF_ADD_INCDIR],
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[
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for cf_add_incdir in $1
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do
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while true
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do
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case $cf_add_incdir in
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/usr/include) # (vi
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;;
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*) # (vi
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CPPFLAGS="$CPPFLAGS -I$cf_add_incdir"
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;;
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esac
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cf_top_incdir=`echo $cf_add_incdir | sed -e 's:/include/.*$:/include:'`
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test "$cf_top_incdir" = "$cf_add_incdir" && break
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cf_add_incdir="$cf_top_incdir"
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done
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done
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])dnl
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dnl ---------------------------------------------------------------------------
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dnl Allow user to disable a normally-on option.
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AC_DEFUN([CF_ARG_DISABLE],
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[CF_ARG_OPTION($1,[$2],[$3],[$4],yes)])dnl
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dnl ---------------------------------------------------------------------------
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dnl Allow user to enable a normally-off option.
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AC_DEFUN([CF_ARG_ENABLE],
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[CF_ARG_OPTION($1,[$2],[$3],[$4],no)])dnl
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dnl ---------------------------------------------------------------------------
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dnl Restricted form of AC_ARG_ENABLE that ensures user doesn't give bogus
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dnl values.
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dnl
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dnl Parameters:
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dnl $1 = option name
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dnl $2 = help-string
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dnl $3 = action to perform if option is not default
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dnl $4 = action if perform if option is default
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dnl $5 = default option value (either 'yes' or 'no')
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AC_DEFUN([CF_ARG_OPTION],
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[AC_ARG_ENABLE($1,[$2],[test "$enableval" != ifelse($5,no,yes,no) && enableval=ifelse($5,no,no,yes)
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if test "$enableval" != "$5" ; then
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ifelse($3,,[ :]dnl
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,[ $3]) ifelse($4,,,[
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else
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$4])
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fi],[enableval=$5 ifelse($4,,,[
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$4
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])dnl
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])])dnl
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dnl ---------------------------------------------------------------------------
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dnl Check if we're accidentally using a cache from a different machine.
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dnl Derive the system name, as a check for reusing the autoconf cache.
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dnl
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dnl If we've packaged config.guess and config.sub, run that (since it does a
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dnl better job than uname).
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AC_DEFUN([CF_CHECK_CACHE],
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[
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if test -f $srcdir/config.guess ; then
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AC_CANONICAL_HOST
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system_name="$host_os"
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else
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system_name="`(uname -s -r) 2>/dev/null`"
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if test -z "$system_name" ; then
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system_name="`(hostname) 2>/dev/null`"
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fi
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fi
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test -z "$system_name" && system_name="$cf_cv_system_name"
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test -n "$cf_cv_system_name" && AC_MSG_RESULT("Configuring for $cf_cv_system_name")
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if test ".$system_name" != ".$cf_cv_system_name" ; then
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AC_MSG_RESULT(Cached system name ($system_name) does not agree with actual ($cf_cv_system_name))
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AC_ERROR("Please remove config.cache and try again.")
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fi
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])dnl
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dnl ---------------------------------------------------------------------------
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dnl Test if curses defines 'chtype' (usually a 'long' type for SysV curses).
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AC_DEFUN([CF_CURSES_CHTYPE],
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[
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AC_CACHE_CHECK(for chtype typedef,cf_cv_chtype_decl,[
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AC_TRY_COMPILE([#include <curses.h>],
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[chtype foo],
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[cf_cv_chtype_decl=yes],
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[cf_cv_chtype_decl=no])])
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if test $cf_cv_chtype_decl = yes ; then
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AC_DEFINE(HAVE_TYPE_CHTYPE)
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AC_CACHE_CHECK(if chtype is scalar or struct,cf_cv_chtype_type,[
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AC_TRY_COMPILE([#include <curses.h>],
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[chtype foo; long x = foo],
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[cf_cv_chtype_type=scalar],
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[cf_cv_chtype_type=struct])])
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if test $cf_cv_chtype_type = scalar ; then
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AC_DEFINE(TYPE_CHTYPE_IS_SCALAR)
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fi
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fi
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])dnl
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dnl ---------------------------------------------------------------------------
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dnl Curses-functions are a little complicated, since a lot of them are macros.
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AC_DEFUN([CF_CURSES_FUNCS],
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[
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AC_REQUIRE([CF_XOPEN_CURSES])
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for cf_func in $1
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do
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CF_UPPER(cf_tr_func,$cf_func)
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AC_MSG_CHECKING(for ${cf_func})
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CF_MSG_LOG(${cf_func})
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AC_CACHE_VAL(cf_cv_func_$cf_func,[
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eval cf_result='$ac_cv_func_'$cf_func
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if test ".$cf_result" != ".no"; then
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AC_TRY_LINK([
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#ifdef HAVE_XCURSES
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#include <xcurses.h>
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char * XCursesProgramName = "test";
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#else
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#include <curses.h>
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#ifdef HAVE_TERM_H
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#include <term.h>
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#endif
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#endif],
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[
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#ifndef ${cf_func}
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long foo = (long)(&${cf_func});
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#endif
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],
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[cf_result=yes],
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[cf_result=no])
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fi
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eval 'cf_cv_func_'$cf_func'=$cf_result'
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])
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# use the computed/retrieved cache-value:
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eval 'cf_result=$cf_cv_func_'$cf_func
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AC_MSG_RESULT($cf_result)
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if test $cf_result != no; then
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AC_DEFINE_UNQUOTED(HAVE_${cf_tr_func})
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fi
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done
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])dnl
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dnl ---------------------------------------------------------------------------
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dnl Look for the curses libraries. Older curses implementations may require
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dnl termcap/termlib to be linked as well.
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AC_DEFUN([CF_CURSES_LIBS],[
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AC_CHECK_FUNC(initscr,,[
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case $host_os in #(vi
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freebsd*) #(vi
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AC_CHECK_LIB(mytinfo,tgoto,[LIBS="-lmytinfo $LIBS"])
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;;
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hpux10.*|hpux11.*)
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AC_CHECK_LIB(cur_colr,initscr,[
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LIBS="-lcur_colr $LIBS"
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CFLAGS="-I/usr/include/curses_colr $CFLAGS"
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ac_cv_func_initscr=yes
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],[
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AC_CHECK_LIB(Hcurses,initscr,[
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# HP's header uses __HP_CURSES, but user claims _HP_CURSES.
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LIBS="-lHcurses $LIBS"
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CFLAGS="-D__HP_CURSES -D_HP_CURSES $CFLAGS"
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ac_cv_func_initscr=yes
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])])
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;;
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linux*) # Suse Linux does not follow /usr/lib convention
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LIBS="$LIBS -L/lib"
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;;
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esac
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if test ".$With5lib" != ".no" ; then
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if test -d /usr/5lib ; then
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# SunOS 3.x or 4.x
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CPPFLAGS="$CPPFLAGS -I/usr/5include"
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LIBS="$LIBS -L/usr/5lib"
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fi
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fi
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if test ".$ac_cv_func_initscr" != .yes ; then
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cf_save_LIBS="$LIBS"
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cf_term_lib=""
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cf_curs_lib=""
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# Check for library containing tgoto. Do this before curses library
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# because it may be needed to link the test-case for initscr.
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AC_CHECK_FUNC(tgoto,[cf_term_lib=predefined],[
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for cf_term_lib in termcap termlib unknown
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do
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AC_CHECK_LIB($cf_term_lib,tgoto,[break])
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done
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])
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# Check for library containing initscr
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test "$cf_term_lib" != predefined && test "$cf_term_lib" != unknown && LIBS="-l$cf_term_lib $cf_save_LIBS"
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for cf_curs_lib in cursesX curses ncurses xcurses jcurses unknown
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do
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AC_CHECK_LIB($cf_curs_lib,initscr,[break])
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done
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test $cf_curs_lib = unknown && AC_ERROR(no curses library found)
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LIBS="-l$cf_curs_lib $cf_save_LIBS"
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if test "$cf_term_lib" = unknown ; then
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AC_MSG_CHECKING(if we can link with $cf_curs_lib library)
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AC_TRY_LINK([#include <${cf_cv_ncurses_header-curses.h}>],
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[initscr()],
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[cf_result=yes],
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[cf_result=no])
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AC_MSG_RESULT($cf_result)
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test $cf_result = no && AC_ERROR(Cannot link curses library)
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elif test "$cf_term_lib" != predefined ; then
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AC_MSG_CHECKING(if we need both $cf_curs_lib and $cf_term_lib libraries)
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AC_TRY_LINK([#include <${cf_cv_ncurses_header-curses.h}>],
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[initscr(); tgoto((char *)0, 0, 0);],
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[cf_result=no],
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[
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LIBS="-l$cf_curs_lib -l$cf_term_lib $cf_save_LIBS"
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AC_TRY_LINK([#include <${cf_cv_ncurses_header-curses.h}>],
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[initscr()],
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[cf_result=yes],
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[cf_result=error])
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])
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AC_MSG_RESULT($cf_result)
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fi
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fi
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])])
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dnl ---------------------------------------------------------------------------
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dnl You can always use "make -n" to see the actual options, but it's hard to
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dnl pick out/analyze warning messages when the compile-line is long.
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dnl
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dnl Sets:
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dnl ECHO_LD - symbol to prefix "cc -o" lines
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dnl RULE_CC - symbol to put before implicit "cc -c" lines (e.g., .c.o)
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dnl SHOW_CC - symbol to put before explicit "cc -c" lines
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dnl ECHO_CC - symbol to put before any "cc" line
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dnl
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AC_DEFUN([CF_DISABLE_ECHO],[
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AC_MSG_CHECKING(if you want to see long compiling messages)
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CF_ARG_DISABLE(echo,
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[ --disable-echo display "compiling" commands],
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[
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ECHO_LD='@echo linking [$]@;'
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RULE_CC=' @echo compiling [$]<'
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SHOW_CC=' @echo compiling [$]@'
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ECHO_CC='@'
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],[
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ECHO_LD=''
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RULE_CC='# compiling'
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SHOW_CC='# compiling'
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ECHO_CC=''
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])
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AC_MSG_RESULT($enableval)
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AC_SUBST(ECHO_LD)
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AC_SUBST(RULE_CC)
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AC_SUBST(SHOW_CC)
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AC_SUBST(ECHO_CC)
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])dnl
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dnl ---------------------------------------------------------------------------
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dnl Look for a non-standard library, given parameters for AC_TRY_LINK. We
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dnl prefer a standard location, and use -L options only if we do not find the
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dnl library in the standard library location(s).
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dnl $1 = library name
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dnl $2 = includes
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dnl $3 = code fragment to compile/link
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dnl $4 = corresponding function-name
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dnl
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dnl Sets the variable "$cf_libdir" as a side-effect, so we can see if we had
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dnl to use a -L option.
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AC_DEFUN([CF_FIND_LIBRARY],
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[
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cf_cv_have_lib_$1=no
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cf_libdir=""
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AC_CHECK_FUNC($4,cf_cv_have_lib_$1=yes,[
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cf_save_LIBS="$LIBS"
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AC_MSG_CHECKING(for $4 in -l$1)
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LIBS="-l$1 $LIBS"
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AC_TRY_LINK([$2],[$3],
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[AC_MSG_RESULT(yes)
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cf_cv_have_lib_$1=yes
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],
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[AC_MSG_RESULT(no)
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CF_LIBRARY_PATH(cf_search,$1)
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for cf_libdir in $cf_search
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do
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AC_MSG_CHECKING(for -l$1 in $cf_libdir)
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LIBS="-L$cf_libdir -l$1 $cf_save_LIBS"
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AC_TRY_LINK([$2],[$3],
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[AC_MSG_RESULT(yes)
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cf_cv_have_lib_$1=yes
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break],
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[AC_MSG_RESULT(no)
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LIBS="$cf_save_LIBS"])
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done
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])
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])
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if test $cf_cv_have_lib_$1 = no ; then
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AC_ERROR(Cannot link $1 library)
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fi
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case $host_os in #(vi
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linux*) # Suse Linux does not follow /usr/lib convention
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LIBS="$LIBS -L/lib"
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;;
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esac
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])dnl
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dnl ---------------------------------------------------------------------------
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dnl A conventional existence-check for 'lstat' won't work with the Linux
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dnl version of gcc 2.7.0, since the symbol is defined only within <sys/stat.h>
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dnl as an inline function.
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dnl
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dnl So much for portability.
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AC_DEFUN([CF_FUNC_LSTAT],
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[
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AC_MSG_CHECKING(for lstat)
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AC_CACHE_VAL(ac_cv_func_lstat,[
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AC_TRY_LINK([
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#include <sys/types.h>
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#include <sys/stat.h>],
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[lstat(".", (struct stat *)0)],
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[ac_cv_func_lstat=yes],
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[ac_cv_func_lstat=no])
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])
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AC_MSG_RESULT($ac_cv_func_lstat )
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if test $ac_cv_func_lstat = yes; then
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AC_DEFINE(HAVE_LSTAT)
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fi
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])dnl
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dnl ---------------------------------------------------------------------------
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dnl Test for availability of useful gcc __attribute__ directives to quiet
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dnl compiler warnings. Though useful, not all are supported -- and contrary
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dnl to documentation, unrecognized directives cause older compilers to barf.
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AC_DEFUN([CF_GCC_ATTRIBUTES],
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[
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if test -n "$GCC"
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then
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cat > conftest.i <<EOF
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#ifndef GCC_PRINTF
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#define GCC_PRINTF 0
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#endif
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#ifndef GCC_SCANF
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#define GCC_SCANF 0
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#endif
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#ifndef GCC_NORETURN
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#define GCC_NORETURN /* nothing */
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#endif
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#ifndef GCC_UNUSED
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#define GCC_UNUSED /* nothing */
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#endif
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EOF
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if test -n "$GCC"
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then
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AC_CHECKING([for $CC __attribute__ directives])
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changequote(,)dnl
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cat > conftest.$ac_ext <<EOF
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#line __oline__ "configure"
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#include "confdefs.h"
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#include "conftest.h"
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#include "conftest.i"
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#if GCC_PRINTF
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#define GCC_PRINTFLIKE(fmt,var) __attribute__((format(printf,fmt,var)))
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#else
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#define GCC_PRINTFLIKE(fmt,var) /*nothing*/
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#endif
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#if GCC_SCANF
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#define GCC_SCANFLIKE(fmt,var) __attribute__((format(scanf,fmt,var)))
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#else
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#define GCC_SCANFLIKE(fmt,var) /*nothing*/
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#endif
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extern void wow(char *,...) GCC_SCANFLIKE(1,2);
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extern void oops(char *,...) GCC_PRINTFLIKE(1,2) GCC_NORETURN;
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extern void foo(void) GCC_NORETURN;
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int main(int argc GCC_UNUSED, char *argv[] GCC_UNUSED) { return 0; }
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EOF
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changequote([,])dnl
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for cf_attribute in scanf printf unused noreturn
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do
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CF_UPPER(CF_ATTRIBUTE,$cf_attribute)
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cf_directive="__attribute__(($cf_attribute))"
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echo "checking for $CC $cf_directive" 1>&AC_FD_CC
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case $cf_attribute in
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scanf|printf)
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cat >conftest.h <<EOF
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#define GCC_$CF_ATTRIBUTE 1
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EOF
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;;
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*)
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cat >conftest.h <<EOF
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#define GCC_$CF_ATTRIBUTE $cf_directive
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EOF
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;;
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esac
|
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if AC_TRY_EVAL(ac_compile); then
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test -n "$verbose" && AC_MSG_RESULT(... $cf_attribute)
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cat conftest.h >>confdefs.h
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|
# else
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|
# sed -e 's/__attr.*/\/*nothing*\//' conftest.h >>confdefs.h
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|
fi
|
|
done
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|
else
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|
fgrep define conftest.i >>confdefs.h
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|
fi
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rm -rf conftest*
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|
fi
|
|
])dnl
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dnl ---------------------------------------------------------------------------
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|
dnl Check if the compiler supports useful warning options. There's a few that
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dnl we don't use, simply because they're too noisy:
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|
dnl
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|
dnl -Wconversion (useful in older versions of gcc, but not in gcc 2.7.x)
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|
dnl -Wredundant-decls (system headers make this too noisy)
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|
dnl -Wtraditional (combines too many unrelated messages, only a few useful)
|
|
dnl -Wwrite-strings (too noisy, but should review occasionally)
|
|
dnl -pedantic
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|
dnl
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|
AC_DEFUN([CF_GCC_WARNINGS],
|
|
[
|
|
if test -n "$GCC"
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|
then
|
|
changequote(,)dnl
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cat > conftest.$ac_ext <<EOF
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|
#line __oline__ "configure"
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int main(int argc, char *argv[]) { return (argv[argc-1] == 0) ; }
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EOF
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|
changequote([,])dnl
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AC_CHECKING([for $CC warning options])
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cf_save_CFLAGS="$CFLAGS"
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|
EXTRA_CFLAGS="-W -Wall"
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cf_warn_CONST=""
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|
test "$with_ext_const" = yes && cf_warn_CONST="Wwrite-strings"
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|
for cf_opt in \
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Wbad-function-cast \
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|
Wcast-align \
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Wcast-qual \
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Winline \
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Wmissing-declarations \
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|
Wmissing-prototypes \
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|
Wnested-externs \
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|
Wpointer-arith \
|
|
Wshadow \
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|
Wstrict-prototypes $cf_warn_CONST
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|
do
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|
CFLAGS="$cf_save_CFLAGS $EXTRA_CFLAGS -$cf_opt"
|
|
if AC_TRY_EVAL(ac_compile); then
|
|
test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
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EXTRA_CFLAGS="$EXTRA_CFLAGS -$cf_opt"
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|
test "$cf_opt" = Wcast-qual && EXTRA_CFLAGS="$EXTRA_CFLAGS -DXTSTRINGDEFINES"
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fi
|
|
done
|
|
rm -f conftest*
|
|
CFLAGS="$cf_save_CFLAGS"
|
|
fi
|
|
AC_SUBST(EXTRA_CFLAGS)
|
|
])dnl
|
|
dnl ---------------------------------------------------------------------------
|
|
dnl Check for getopt's variables which are commonly defined in stdlib.h or
|
|
dnl (nonstandard) in getopt.h
|
|
AC_DEFUN([CF_GETOPT_HEADER],
|
|
[
|
|
AC_CACHE_CHECK(for header declaring getopt variables,cf_cv_getopt_header,[
|
|
cf_cv_getopt_header=none
|
|
for cf_header in stdio.h stdlib.h getopt.h
|
|
do
|
|
AC_TRY_COMPILE([
|
|
#include <$cf_header>],
|
|
[int x = optind; char *y = optarg],
|
|
[cf_cv_getopt_header=$cf_header
|
|
break])
|
|
done
|
|
])
|
|
case $cf_cv_getopt_header in #(vi
|
|
getopt.h) #(vi
|
|
AC_DEFINE(HAVE_GETOPT_H)
|
|
AC_DEFINE(HAVE_GETOPT_HEADER)
|
|
;;
|
|
stdlib.h) #(vi
|
|
AC_DEFINE(HAVE_STDLIB_H)
|
|
AC_DEFINE(HAVE_GETOPT_HEADER)
|
|
;;
|
|
esac
|
|
])dnl
|
|
dnl ---------------------------------------------------------------------------
|
|
dnl Construct a search-list for a nonstandard header-file
|
|
AC_DEFUN([CF_HEADER_PATH],
|
|
[$1=""
|
|
if test -d "$includedir" ; then
|
|
test "$includedir" != NONE && $1="[$]$1 $includedir $includedir/$2"
|
|
fi
|
|
if test -d "$oldincludedir" ; then
|
|
test "$oldincludedir" != NONE && $1="[$]$1 $oldincludedir $oldincludedir/$2"
|
|
fi
|
|
if test -d "$prefix"; then
|
|
test "$prefix" != NONE && $1="[$]$1 $prefix/include $prefix/include/$2"
|
|
fi
|
|
test "$prefix" != /usr/local && $1="[$]$1 /usr/local/include /usr/local/include/$2"
|
|
test "$prefix" != /usr && $1="[$]$1 /usr/include /usr/include/$2"
|
|
test "$prefix" != /opt && $1="[$]$1 /opt/include /opt/include/$2"
|
|
])dnl
|
|
dnl ---------------------------------------------------------------------------
|
|
dnl Insert text into the help-message, for readability, from AC_ARG_WITH.
|
|
AC_DEFUN([CF_HELP_MESSAGE],
|
|
[AC_DIVERT_HELP([$1])dnl
|
|
])dnl
|
|
dnl ---------------------------------------------------------------------------
|
|
dnl Construct the list of include-options according to whether we're building
|
|
dnl in the source directory or using '--srcdir=DIR' option. If we're building
|
|
dnl with gcc, don't append the includedir if it happens to be /usr/include,
|
|
dnl since that usually breaks gcc's shadow-includes.
|
|
AC_DEFUN([CF_INCLUDE_DIRS],
|
|
[
|
|
CPPFLAGS="$CPPFLAGS -I. -I../include"
|
|
if test "$srcdir" != "."; then
|
|
CPPFLAGS="$CPPFLAGS -I\$(srcdir)/../include"
|
|
fi
|
|
if test -z "$GCC"; then
|
|
CPPFLAGS="$CPPFLAGS -I\$(includedir)"
|
|
elif test "$includedir" != "/usr/include"; then
|
|
if test "$includedir" = '${prefix}/include' ; then
|
|
if test $prefix != /usr ; then
|
|
CPPFLAGS="$CPPFLAGS -I\$(includedir)"
|
|
fi
|
|
else
|
|
CPPFLAGS="$CPPFLAGS -I\$(includedir)"
|
|
fi
|
|
fi
|
|
AC_SUBST(CPPFLAGS)
|
|
])dnl
|
|
dnl ---------------------------------------------------------------------------
|
|
dnl Adds to the include-path
|
|
dnl
|
|
dnl Autoconf 1.11 should have provided a way to add include path options to
|
|
dnl the cpp-tests.
|
|
dnl
|
|
AC_DEFUN([CF_INCLUDE_PATH],
|
|
[
|
|
for cf_path in $1
|
|
do
|
|
cf_result="no"
|
|
AC_MSG_CHECKING(for directory $cf_path)
|
|
if test -d $cf_path
|
|
then
|
|
INCLUDES="$INCLUDES -I$cf_path"
|
|
ac_cpp="${ac_cpp} -I$cf_path"
|
|
CFLAGS="$CFLAGS -I$cf_path"
|
|
cf_result="yes"
|
|
case $cf_path in
|
|
/usr/include|/usr/include/*)
|
|
;;
|
|
*)
|
|
changequote(,)dnl
|
|
cf_temp=`echo $cf_path | sed -e s'%/[^/]*$%%'`
|
|
changequote([,])dnl
|
|
case $cf_temp in
|
|
*/include)
|
|
INCLUDES="$INCLUDES -I$cf_temp"
|
|
ac_cpp="${ac_cpp} -I$cf_temp"
|
|
CFLAGS="$CFLAGS -I$cf_temp"
|
|
;;
|
|
esac
|
|
esac
|
|
fi
|
|
AC_MSG_RESULT($cf_result)
|
|
done
|
|
])dnl
|
|
dnl ---------------------------------------------------------------------------
|
|
dnl Construct a search-list for a nonstandard library-file
|
|
AC_DEFUN([CF_LIBRARY_PATH],
|
|
[$1=""
|
|
if test -d "$libdir" ; then
|
|
test "$libdir" != NONE && $1="[$]$1 $libdir $libdir/$2"
|
|
fi
|
|
if test -d "$exec_prefix"; then
|
|
test "$exec_prefix" != NONE && $1="[$]$1 $exec_prefix/lib $exec_prefix/lib/$2"
|
|
fi
|
|
if test -d "$prefix"; then
|
|
test "$prefix" != NONE && \
|
|
test "$prefix" != "$exec_prefix" && $1="[$]$1 $prefix/lib $prefix/lib/$2"
|
|
fi
|
|
test "$prefix" != /usr/local && $1="[$]$1 /usr/local/lib /usr/local/lib/$2"
|
|
test "$prefix" != /usr && $1="[$]$1 /usr/lib /usr/lib/$2"
|
|
test "$prefix" != /opt && $1="[$]$1 /opt/lib /opt/lib/$2"
|
|
])dnl
|
|
dnl ---------------------------------------------------------------------------
|
|
dnl Compute the library-prefix for the given host system
|
|
dnl $1 = variable to set
|
|
AC_DEFUN([CF_LIB_PREFIX],
|
|
[
|
|
case $cf_cv_system_name in
|
|
os2) LIB_PREFIX='' ;;
|
|
*) LIB_PREFIX='lib' ;;
|
|
esac
|
|
ifelse($1,,,[$1=$LIB_PREFIX])
|
|
AC_SUBST(LIB_PREFIX)
|
|
])dnl
|
|
dnl ---------------------------------------------------------------------------
|
|
dnl Some 'make' programs support $(MAKEFLAGS), some $(MFLAGS), to pass 'make'
|
|
dnl options to lower-levels. It's very useful for "make -n" -- if we have it.
|
|
dnl (GNU 'make' does both, something POSIX 'make', which happens to make the
|
|
dnl $(MAKEFLAGS) variable incompatible because it adds the assignments :-)
|
|
AC_DEFUN([CF_MAKEFLAGS],
|
|
[
|
|
AC_MSG_CHECKING([for makeflags variable])
|
|
AC_CACHE_VAL(cf_cv_makeflags,[
|
|
cf_cv_makeflags=''
|
|
for cf_option in '-$(MAKEFLAGS)' '$(MFLAGS)'
|
|
do
|
|
cat >cf_makeflags.tmp <<CF_EOF
|
|
all :
|
|
@ echo '.$cf_option'
|
|
CF_EOF
|
|
cf_result=`${MAKE-make} -k -f cf_makeflags.tmp 2>/dev/null`
|
|
case "$cf_result" in
|
|
.*k)
|
|
cf_result=`${MAKE-make} -k -f cf_makeflags.tmp CC=cc 2>/dev/null`
|
|
case "$cf_result" in
|
|
.*CC=*) cf_cv_makeflags=
|
|
;;
|
|
*) cf_cv_makeflags=$cf_option
|
|
;;
|
|
esac
|
|
break
|
|
;;
|
|
*) echo no match "$cf_result"
|
|
;;
|
|
esac
|
|
done
|
|
rm -f cf_makeflags.tmp])
|
|
AC_MSG_RESULT($cf_cv_makeflags)
|
|
AC_SUBST(cf_cv_makeflags)
|
|
])dnl
|
|
dnl ---------------------------------------------------------------------------
|
|
dnl Write a debug message to config.log, along with the line number in the
|
|
dnl configure script.
|
|
AC_DEFUN([CF_MSG_LOG],[
|
|
echo "(line __oline__) testing $* ..." 1>&AC_FD_CC
|
|
])dnl
|
|
dnl ---------------------------------------------------------------------------
|
|
dnl Look for the SVr4 curses clone 'ncurses' in the standard places, adjusting
|
|
dnl the CPPFLAGS variable.
|
|
dnl
|
|
dnl The header files may be installed as either curses.h, or ncurses.h
|
|
dnl (obsolete). If not installed for overwrite, the curses.h file would be
|
|
dnl in an ncurses subdirectory (e.g., /usr/include/ncurses), but someone may
|
|
dnl have installed overwriting the vendor's curses. Only very old versions
|
|
dnl (pre-1.9.2d, the first autoconf'd version) of ncurses don't define
|
|
dnl either __NCURSES_H or NCURSES_VERSION in the header.
|
|
dnl
|
|
dnl If the installer has set $CFLAGS or $CPPFLAGS so that the ncurses header
|
|
dnl is already in the include-path, don't even bother with this, since we cannot
|
|
dnl easily determine which file it is. In this case, it has to be <curses.h>.
|
|
dnl
|
|
AC_DEFUN([CF_NCURSES_CPPFLAGS],
|
|
[
|
|
AC_MSG_CHECKING(for ncurses header file)
|
|
AC_CACHE_VAL(cf_cv_ncurses_header,[
|
|
AC_TRY_COMPILE([#include <curses.h>],[
|
|
#ifdef NCURSES_VERSION
|
|
printf("%s\n", NCURSES_VERSION);
|
|
#else
|
|
#ifdef __NCURSES_H
|
|
printf("old\n");
|
|
#else
|
|
make an error
|
|
#endif
|
|
#endif
|
|
],
|
|
[cf_cv_ncurses_header=predefined],[
|
|
CF_HEADER_PATH(cf_search,ncurses)
|
|
test -n "$verbose" && echo
|
|
for cf_incdir in $cf_search
|
|
do
|
|
for cf_header in \
|
|
curses.h \
|
|
ncurses.h
|
|
do
|
|
changequote(,)dnl
|
|
if egrep "NCURSES_[VH]" $cf_incdir/$cf_header 1>&AC_FD_CC 2>&1; then
|
|
changequote([,])dnl
|
|
cf_cv_ncurses_header=$cf_incdir/$cf_header
|
|
test -n "$verbose" && echo $ac_n " ... found $ac_c" 1>&AC_FD_MSG
|
|
break
|
|
fi
|
|
test -n "$verbose" && echo " ... tested $cf_incdir/$cf_header" 1>&AC_FD_MSG
|
|
done
|
|
test -n "$cf_cv_ncurses_header" && break
|
|
done
|
|
test -z "$cf_cv_ncurses_header" && AC_ERROR(not found)
|
|
])])
|
|
AC_MSG_RESULT($cf_cv_ncurses_header)
|
|
AC_DEFINE(NCURSES)
|
|
|
|
changequote(,)dnl
|
|
cf_incdir=`echo $cf_cv_ncurses_header | sed -e 's:/[^/]*$::'`
|
|
changequote([,])dnl
|
|
|
|
case $cf_cv_ncurses_header in # (vi
|
|
*/ncurses.h)
|
|
AC_DEFINE(HAVE_NCURSES_H)
|
|
;;
|
|
esac
|
|
|
|
case $cf_cv_ncurses_header in # (vi
|
|
predefined) # (vi
|
|
cf_cv_ncurses_header=curses.h
|
|
;;
|
|
*)
|
|
CF_ADD_INCDIR($cf_incdir)
|
|
;;
|
|
esac
|
|
CF_NCURSES_VERSION
|
|
])dnl
|
|
dnl ---------------------------------------------------------------------------
|
|
dnl Look for the ncurses library. This is a little complicated on Linux,
|
|
dnl because it may be linked with the gpm (general purpose mouse) library.
|
|
dnl Some distributions have gpm linked with (bsd) curses, which makes it
|
|
dnl unusable with ncurses. However, we don't want to link with gpm unless
|
|
dnl ncurses has a dependency, since gpm is normally set up as a shared library,
|
|
dnl and the linker will record a dependency.
|
|
AC_DEFUN([CF_NCURSES_LIBS],
|
|
[AC_REQUIRE([CF_NCURSES_CPPFLAGS])
|
|
|
|
# This works, except for the special case where we find gpm, but
|
|
# ncurses is in a nonstandard location via $LIBS, and we really want
|
|
# to link gpm.
|
|
cf_ncurses_LIBS=""
|
|
cf_ncurses_SAVE="$LIBS"
|
|
AC_CHECK_LIB(gpm,Gpm_Open,
|
|
[AC_CHECK_LIB(gpm,initscr,
|
|
[LIBS="$cf_ncurses_SAVE"],
|
|
[cf_ncurses_LIBS="-lgpm"])])
|
|
|
|
case $host_os in #(vi
|
|
freebsd*)
|
|
# This is only necessary if you are linking against an obsolete
|
|
# version of ncurses (but it should do no harm, since it's static).
|
|
AC_CHECK_LIB(mytinfo,tgoto,[cf_ncurses_LIBS="-lmytinfo $cf_ncurses_LIBS"])
|
|
;;
|
|
esac
|
|
|
|
LIBS="$cf_ncurses_LIBS $LIBS"
|
|
CF_FIND_LIBRARY(ncurses,
|
|
[#include <${cf_cv_ncurses_header-curses.h}>],
|
|
[initscr()],
|
|
initscr)
|
|
|
|
if test -n "$cf_ncurses_LIBS" ; then
|
|
AC_MSG_CHECKING(if we can link ncurses without $cf_ncurses_LIBS)
|
|
cf_ncurses_SAVE="$LIBS"
|
|
for p in $cf_ncurses_LIBS ; do
|
|
q=`echo $LIBS | sed -e 's/'$p' //' -e 's/'$p'$//'`
|
|
if test "$q" != "$LIBS" ; then
|
|
LIBS="$q"
|
|
fi
|
|
done
|
|
AC_TRY_LINK([#include <${cf_cv_ncurses_header-curses.h}>],
|
|
[initscr(); mousemask(0,0); tgoto((char *)0, 0, 0);],
|
|
[AC_MSG_RESULT(yes)],
|
|
[AC_MSG_RESULT(no)
|
|
LIBS="$cf_ncurses_SAVE"])
|
|
fi
|
|
])dnl
|
|
dnl ---------------------------------------------------------------------------
|
|
dnl Check for the version of ncurses, to aid in reporting bugs, etc.
|
|
AC_DEFUN([CF_NCURSES_VERSION],
|
|
[AC_MSG_CHECKING(for ncurses version)
|
|
AC_CACHE_VAL(cf_cv_ncurses_version,[
|
|
cf_cv_ncurses_version=no
|
|
cf_tempfile=out$$
|
|
AC_TRY_RUN([
|
|
#include <${cf_cv_ncurses_header-curses.h}>
|
|
int main()
|
|
{
|
|
FILE *fp = fopen("$cf_tempfile", "w");
|
|
#ifdef NCURSES_VERSION
|
|
# ifdef NCURSES_VERSION_PATCH
|
|
fprintf(fp, "%s.%d\n", NCURSES_VERSION, NCURSES_VERSION_PATCH);
|
|
# else
|
|
fprintf(fp, "%s\n", NCURSES_VERSION);
|
|
# endif
|
|
#else
|
|
# ifdef __NCURSES_H
|
|
fprintf(fp, "old\n");
|
|
# else
|
|
make an error
|
|
# endif
|
|
#endif
|
|
exit(0);
|
|
}],[
|
|
cf_cv_ncurses_version=`cat $cf_tempfile`
|
|
rm -f $cf_tempfile],,[
|
|
|
|
# This will not work if the preprocessor splits the line after the
|
|
# Autoconf token. The 'unproto' program does that.
|
|
cat > conftest.$ac_ext <<EOF
|
|
#include <${cf_cv_ncurses_header-curses.h}>
|
|
#undef Autoconf
|
|
#ifdef NCURSES_VERSION
|
|
Autoconf NCURSES_VERSION
|
|
#else
|
|
#ifdef __NCURSES_H
|
|
Autoconf "old"
|
|
#endif
|
|
;
|
|
#endif
|
|
EOF
|
|
cf_try="$ac_cpp conftest.$ac_ext 2>&AC_FD_CC | grep '^Autoconf ' >conftest.out"
|
|
AC_TRY_EVAL(cf_try)
|
|
if test -f conftest.out ; then
|
|
changequote(,)dnl
|
|
cf_out=`cat conftest.out | sed -e 's@^Autoconf @@' -e 's@^[^"]*"@@' -e 's@".*@@'`
|
|
changequote([,])dnl
|
|
test -n "$cf_out" && cf_cv_ncurses_version="$cf_out"
|
|
rm -f conftest.out
|
|
fi
|
|
])])
|
|
AC_MSG_RESULT($cf_cv_ncurses_version)
|
|
])
|
|
dnl ---------------------------------------------------------------------------
|
|
dnl Configure for PDCurses' X11 library
|
|
AC_DEFUN([CF_PDCURSES_X11],[
|
|
AC_REQUIRE([CF_X_ATHENA])
|
|
LDFLAGS="$LDFLAGS $X_LIBS"
|
|
CFLAGS="$CFLAGS $X_CFLAGS"
|
|
AC_CHECK_LIB(X11,XOpenDisplay,
|
|
[LIBS="-lX11 $LIBS"],,
|
|
[$X_PRE_LIBS $LIBS $X_EXTRA_LIBS])
|
|
AC_CACHE_CHECK(for XCurses library,cf_cv_lib_XCurses,[
|
|
LIBS="-lXCurses $LIBS"
|
|
AC_TRY_LINK([
|
|
#include <xcurses.h>
|
|
char *XCursesProgramName = "test";
|
|
],[XCursesExit();],
|
|
[cf_cv_lib_XCurses=yes],
|
|
[cf_cv_lib_XCurses=no])
|
|
])
|
|
if test $cf_cv_lib_XCurses = yes ; then
|
|
AC_DEFINE(UNIX)
|
|
AC_DEFINE(XCURSES)
|
|
AC_DEFINE(HAVE_XCURSES)
|
|
else
|
|
AC_ERROR(Cannot link with XCurses)
|
|
fi
|
|
])
|
|
dnl ---------------------------------------------------------------------------
|
|
dnl Compute $PROG_EXT, used for non-Unix ports, such as OS/2 EMX.
|
|
AC_DEFUN([CF_PROG_EXT],
|
|
[
|
|
AC_REQUIRE([CF_CHECK_CACHE])
|
|
PROG_EXT=
|
|
case $cf_cv_system_name in
|
|
os2*)
|
|
# We make sure -Zexe is not used -- it would interfere with @PROG_EXT@
|
|
CFLAGS="$CFLAGS -Zmt -D__ST_MT_ERRNO__"
|
|
CXXFLAGS="$CXXFLAGS -Zmt -D__ST_MT_ERRNO__"
|
|
LDFLAGS=`echo "$LDFLAGS -Zmt -Zcrtdll" | sed "s/-Zexe//g"`
|
|
PROG_EXT=".exe"
|
|
;;
|
|
cygwin*)
|
|
PROG_EXT=".exe"
|
|
;;
|
|
esac
|
|
AC_SUBST(PROG_EXT)
|
|
])dnl
|
|
dnl ---------------------------------------------------------------------------
|
|
dnl Shorthand macro for substituting things that the user may override
|
|
dnl with an environment variable.
|
|
dnl
|
|
dnl $1 = long/descriptive name
|
|
dnl $2 = environment variable
|
|
dnl $3 = default value
|
|
AC_DEFUN([CF_SUBST],
|
|
[AC_CACHE_VAL(cf_cv_subst_$2,[
|
|
AC_MSG_CHECKING(for $1 (symbol $2))
|
|
test -z "[$]$2" && $2=$3
|
|
AC_MSG_RESULT([$]$2)
|
|
AC_SUBST($2)
|
|
cf_cv_subst_$2=[$]$2])
|
|
$2=${cf_cv_subst_$2}
|
|
])dnl
|
|
dnl ---------------------------------------------------------------------------
|
|
dnl Derive the system-type (our main clue to the method of building shared
|
|
dnl libraries).
|
|
AC_DEFUN([CF_SYSTYPE],
|
|
[
|
|
AC_MSG_CHECKING(for system type)
|
|
AC_CACHE_VAL(cf_cv_systype,[
|
|
AC_ARG_WITH(system-type,
|
|
[ --with-system-type=XXX test: override derived host system-type],
|
|
[cf_cv_systype=$withval],
|
|
[
|
|
changequote(,)dnl
|
|
cf_cv_systype="`(uname -s || hostname || echo unknown) 2>/dev/null |sed -e s'/[:\/.-]/_/'g | sed 1q`"
|
|
changequote([,])dnl
|
|
if test -z "$cf_cv_systype"; then cf_cv_systype=unknown;fi
|
|
])])
|
|
AC_MSG_RESULT($cf_cv_systype)
|
|
])dnl
|
|
dnl ---------------------------------------------------------------------------
|
|
dnl Derive the system name, as a check for reusing the autoconf cache
|
|
AC_DEFUN([CF_SYS_NAME],
|
|
[
|
|
SYS_NAME=`(uname -s -r || uname -a || hostname) 2>/dev/null | sed 1q`
|
|
test -z "$SYS_NAME" && SYS_NAME=unknown
|
|
AC_DEFINE_UNQUOTED(SYS_NAME,"$SYS_NAME")
|
|
|
|
AC_CACHE_VAL(cf_cv_system_name,[cf_cv_system_name="$SYS_NAME"])
|
|
|
|
if test ".$SYS_NAME" != ".$cf_cv_system_name" ; then
|
|
AC_MSG_RESULT("Cached system name does not agree with actual")
|
|
AC_ERROR("Please remove config.cache and try again.")
|
|
fi])
|
|
dnl ---------------------------------------------------------------------------
|
|
dnl Make an uppercase version of a variable
|
|
dnl $1=uppercase($2)
|
|
AC_DEFUN([CF_UPPER],
|
|
[
|
|
changequote(,)dnl
|
|
$1=`echo $2 | tr '[a-z]' '[A-Z]'`
|
|
changequote([,])dnl
|
|
])dnl
|
|
dnl ---------------------------------------------------------------------------
|
|
dnl Make an uppercase version of a given name
|
|
AC_DEFUN([CF_UPPERCASE],
|
|
[
|
|
changequote(,)dnl
|
|
$2=`echo $1 |tr '[a-z]' '[A-Z]'`
|
|
changequote([,])dnl
|
|
])dnl
|
|
dnl ---------------------------------------------------------------------------
|
|
dnl Use AC_VERBOSE w/o the warnings
|
|
AC_DEFUN([CF_VERBOSE],
|
|
[test -n "$verbose" && echo " $1" 1>&AC_FD_MSG
|
|
])dnl
|
|
dnl ---------------------------------------------------------------------------
|
|
dnl Test if we should define X/Open source for curses, needed on Digital Unix
|
|
dnl 4.x, to see the extended functions, but breaks on IRIX 6.x.
|
|
AC_DEFUN([CF_XOPEN_CURSES],
|
|
[
|
|
AC_CACHE_CHECK(if we must define _XOPEN_SOURCE_EXTENDED,cf_cv_need_xopen_extension,[
|
|
AC_TRY_LINK([
|
|
#include <stdlib.h>
|
|
#include <curses.h>],[
|
|
long x = winnstr(stdscr, "", 0)],
|
|
[cf_cv_need_xopen_extension=no],
|
|
[AC_TRY_LINK([
|
|
#define _XOPEN_SOURCE_EXTENDED
|
|
#include <stdlib.h>
|
|
#include <curses.h>],[
|
|
long x = winnstr(stdscr, "", 0)],
|
|
[cf_cv_need_xopen_extension=yes],
|
|
[cf_cv_need_xopen_extension=no])])])
|
|
test $cf_cv_need_xopen_extension = yes && CFLAGS="$CFLAGS -D_XOPEN_SOURCE_EXTENDED"
|
|
])dnl
|
|
dnl ---------------------------------------------------------------------------
|
|
dnl Check for Xaw (Athena) libraries
|
|
dnl
|
|
AC_DEFUN([CF_X_ATHENA],
|
|
[AC_REQUIRE([CF_X_TOOLKIT])
|
|
cf_x_athena=${cf_x_athena-Xaw}
|
|
|
|
AC_ARG_WITH(Xaw3d,
|
|
[ --with-Xaw3d link with Xaw 3d library],
|
|
[cf_x_athena=Xaw3d])
|
|
|
|
AC_ARG_WITH(neXtaw,
|
|
[ --with-neXtaw link with neXT Athena library],
|
|
[cf_x_athena=neXtaw])
|
|
|
|
|
|
AC_CHECK_LIB(Xext,XextCreateExtension,
|
|
[LIBS="-lXext $LIBS"])
|
|
|
|
cf_x_athena_include=""
|
|
cf_x_athena_lib=""
|
|
|
|
for cf_path in default \
|
|
/usr/contrib/X11R6 \
|
|
/usr/contrib/X11R5 \
|
|
/usr/lib/X11R5
|
|
do
|
|
|
|
if test -z "$cf_x_athena_include" ; then
|
|
cf_save="$CFLAGS"
|
|
cf_test=X11/$cf_x_athena/SimpleMenu.h
|
|
if test $cf_path != default ; then
|
|
CFLAGS="-I$cf_path/include $cf_save"
|
|
AC_MSG_CHECKING(for $cf_test in $cf_path)
|
|
else
|
|
AC_MSG_CHECKING(for $cf_test)
|
|
fi
|
|
AC_TRY_COMPILE([
|
|
#include <X11/Intrinsic.h>
|
|
#include <$cf_test>],[],
|
|
[cf_result=yes],
|
|
[cf_result=no])
|
|
AC_MSG_RESULT($cf_result)
|
|
if test "$cf_result" = yes ; then
|
|
cf_x_athena_include=$cf_path
|
|
else
|
|
CFLAGS="$cf_save"
|
|
fi
|
|
fi
|
|
|
|
for cf_lib in "-l$cf_x_athena -lXmu" "-l${cf_x_athena}_s -lXmu_s"
|
|
do
|
|
if test -z "$cf_x_athena_lib" ; then
|
|
cf_save="$LIBS"
|
|
cf_test=XawSimpleMenuAddGlobalActions
|
|
if test $cf_path != default ; then
|
|
LIBS="-L$cf_path/lib $cf_lib $LIBS"
|
|
AC_MSG_CHECKING(for $cf_lib in $cf_path)
|
|
else
|
|
LIBS="$cf_lib $LIBS"
|
|
AC_MSG_CHECKING(for $cf_test in $cf_lib)
|
|
fi
|
|
AC_TRY_LINK([],[$cf_test()],
|
|
[cf_result=yes],
|
|
[cf_result=no],
|
|
[$X_PRE_LIBS $LIBS $X_EXTRA_LIBS])
|
|
AC_MSG_RESULT($cf_result)
|
|
if test "$cf_result" = yes ; then
|
|
cf_x_athena_lib="$cf_lib"
|
|
else
|
|
LIBS="$cf_save"
|
|
fi
|
|
fi
|
|
done
|
|
done
|
|
|
|
if test -z "$cf_x_athena_include" ; then
|
|
AC_MSG_WARN(
|
|
[Unable to successfully find Athena header files with test program])
|
|
fi
|
|
|
|
if test -z "$cf_x_athena_lib" ; then
|
|
AC_ERROR(
|
|
[Unable to successfully link Athena library (-l$cf_x_athena) with test program])
|
|
fi
|
|
|
|
CF_UPPER(CF_X_ATHENA_LIBS,HAVE_LIB_$cf_x_athena)
|
|
AC_DEFINE_UNQUOTED($CF_X_ATHENA_LIBS)
|
|
])dnl
|
|
dnl ---------------------------------------------------------------------------
|
|
dnl Check for X Toolkit libraries
|
|
dnl
|
|
AC_DEFUN([CF_X_TOOLKIT],
|
|
[
|
|
AC_REQUIRE([CF_CHECK_CACHE])
|
|
# We need to check for -lsocket and -lnsl here in order to work around an
|
|
# autoconf bug. autoconf-2.12 is not checking for these prior to checking for
|
|
# the X11R6 -lSM and -lICE libraries. The resultant failures cascade...
|
|
# (tested on Solaris 2.5 w/ X11R6)
|
|
SYSTEM_NAME=`echo "$cf_cv_system_name"|tr ' ' -`
|
|
cf_have_X_LIBS=no
|
|
case $SYSTEM_NAME in
|
|
changequote(,)dnl
|
|
irix[56]*) ;;
|
|
changequote([,])dnl
|
|
clix*)
|
|
# FIXME: modify the library lookup in autoconf to
|
|
# allow _s.a suffix ahead of .a
|
|
AC_CHECK_LIB(c_s,open,
|
|
[LIBS="-lc_s $LIBS"
|
|
AC_CHECK_LIB(bsd,gethostname,
|
|
[LIBS="-lbsd $LIBS"
|
|
AC_CHECK_LIB(nsl_s,gethostname,
|
|
[LIBS="-lnsl_s $LIBS"
|
|
AC_CHECK_LIB(X11_s,XOpenDisplay,
|
|
[LIBS="-lX11_s $LIBS"
|
|
AC_CHECK_LIB(Xt_s,XtAppInitialize,
|
|
[LIBS="-lXt_s $LIBS"
|
|
cf_have_X_LIBS=Xt
|
|
]) ]) ]) ]) ])
|
|
;;
|
|
*)
|
|
AC_CHECK_LIB(socket,socket)
|
|
AC_CHECK_LIB(nsl,gethostname)
|
|
;;
|
|
esac
|
|
|
|
if test $cf_have_X_LIBS = no ; then
|
|
AC_PATH_XTRA
|
|
LDFLAGS="$LDFLAGS $X_LIBS"
|
|
CFLAGS="$CFLAGS $X_CFLAGS"
|
|
AC_CHECK_LIB(X11,XOpenDisplay,
|
|
[LIBS="-lX11 $LIBS"],,
|
|
[$X_PRE_LIBS $LIBS $X_EXTRA_LIBS])
|
|
AC_CHECK_LIB(Xt, XtAppInitialize,
|
|
[AC_DEFINE(HAVE_LIBXT)
|
|
cf_have_X_LIBS=Xt
|
|
LIBS="-lXt $X_PRE_LIBS $LIBS"],,
|
|
[$X_PRE_LIBS $LIBS $X_EXTRA_LIBS])
|
|
else
|
|
LDFLAGS="$LDFLAGS $X_LIBS"
|
|
CFLAGS="$CFLAGS $X_CFLAGS"
|
|
fi
|
|
|
|
if test $cf_have_X_LIBS = no ; then
|
|
AC_WARN(
|
|
[Unable to successfully link X Toolkit library (-lXt) with
|
|
test program. You will have to check and add the proper libraries by hand
|
|
to makefile.])
|
|
fi
|
|
])dnl
|