| dnl acinclude.m4 -- Extra macros needed for GNU make. |
| dnl |
| dnl Automake will incorporate this into its generated aclocal.m4. |
| |
| dnl --------------------------------------------------------------------------- |
| dnl Got this from the lynx 2.8 distribution. |
| dnl by T.E.Dickey <dickey@clark.net> |
| dnl and Jim Spath <jspath@mail.bcpl.lib.md.us> |
| dnl and Philippe De Muyter <phdm@macqel.be> |
| dnl |
| dnl Created: 1997/1/28 |
| dnl Updated: 1997/12/23 |
| dnl --------------------------------------------------------------------------- |
| dnl After checking for functions in the default $LIBS, make a further check |
| dnl for the functions that are netlib-related (these aren't always in the |
| dnl libc, etc., and have to be handled specially because there are conflicting |
| dnl and broken implementations. |
| dnl Common library requirements (in order): |
| dnl -lresolv -lsocket -lnsl |
| dnl -lnsl -lsocket |
| dnl -lsocket |
| dnl -lbsd |
| AC_DEFUN([CF_NETLIBS],[ |
| cf_test_netlibs=no |
| AC_MSG_CHECKING(for network libraries) |
| AC_CACHE_VAL(cf_cv_netlibs,[ |
| AC_MSG_RESULT(working...) |
| cf_cv_netlibs="" |
| cf_test_netlibs=yes |
| AC_CHECK_FUNCS(gethostname,,[ |
| CF_RECHECK_FUNC(gethostname,nsl,cf_cv_netlibs,[ |
| CF_RECHECK_FUNC(gethostname,socket,cf_cv_netlibs)])]) |
| # |
| # FIXME: sequent needs this library (i.e., -lsocket -linet -lnsl), but |
| # I don't know the entrypoints - 97/7/22 TD |
| AC_CHECK_LIB(inet,main,cf_cv_netlibs="-linet $cf_cv_netlibs") |
| # |
| if test "$ac_cv_func_lsocket" != no ; then |
| AC_CHECK_FUNCS(socket,,[ |
| CF_RECHECK_FUNC(socket,socket,cf_cv_netlibs,[ |
| CF_RECHECK_FUNC(socket,bsd,cf_cv_netlibs)])]) |
| fi |
| # |
| AC_CHECK_FUNCS(gethostbyname,,[ |
| CF_RECHECK_FUNC(gethostbyname,nsl,cf_cv_netlibs)]) |
| # |
| AC_CHECK_FUNCS(strcasecmp,,[ |
| CF_RECHECK_FUNC(strcasecmp,resolv,cf_cv_netlibs)]) |
| ]) |
| LIBS="$LIBS $cf_cv_netlibs" |
| test $cf_test_netlibs = no && echo "$cf_cv_netlibs" >&AC_FD_MSG |
| ])dnl |
| dnl --------------------------------------------------------------------------- |
| dnl Re-check on a function to see if we can pick it up by adding a library. |
| dnl $1 = function to check |
| dnl $2 = library to check in |
| dnl $3 = environment to update (e.g., $LIBS) |
| dnl $4 = what to do if this fails |
| dnl |
| dnl This uses 'unset' if the shell happens to support it, but leaves the |
| dnl configuration variable set to 'unknown' if not. This is a little better |
| dnl than the normal autoconf test, which gives misleading results if a test |
| dnl for the function is made (e.g., with AC_CHECK_FUNC) after this macro is |
| dnl used (autoconf does not distinguish between a null token and one that is |
| dnl set to 'no'). |
| AC_DEFUN([CF_RECHECK_FUNC],[ |
| AC_CHECK_LIB($2,$1,[ |
| CF_UPPER(cf_tr_func,$1) |
| AC_DEFINE_UNQUOTED(HAVE_$cf_tr_func) |
| ac_cv_func_$1=yes |
| $3="-l$2 [$]$3"],[ |
| ac_cv_func_$1=unknown |
| unset ac_cv_func_$1 2>/dev/null |
| $4], |
| [[$]$3]) |
| ])dnl |
| 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 Got this from the GNU fileutils 3.16r distribution |
| dnl by Paul Eggert <egger@twinsun.com> |
| dnl --------------------------------------------------------------------------- |
| |
| dnl The problem is that the default compilation flags in Solaris 2.6 won't |
| dnl let programs access large files; you need to tell the compiler that |
| dnl you actually want your programs to work on large files. For more |
| dnl details about this brain damage please see: |
| dnl http://www.sas.com/standards/large.file/x_open.20Mar96.html |
| |
| AC_DEFUN(AC_LFS, |
| [dnl |
| # If available, prefer support for large files unless the user specified |
| # one of the CPPFLAGS, LDFLAGS, or LIBS variables. |
| AC_MSG_CHECKING(whether large file support needs explicit enabling) |
| ac_getconfs='' |
| ac_result=yes |
| ac_set='' |
| ac_shellvars='CPPFLAGS LDFLAGS LIBS' |
| for ac_shellvar in $ac_shellvars; do |
| case $ac_shellvar in |
| CPPFLAGS) ac_lfsvar=LFS_CFLAGS ;; |
| *) ac_lfsvar=LFS_$ac_shellvar ;; |
| esac |
| eval test '"${'$ac_shellvar'+set}"' = set && ac_set=$ac_shellvar |
| (getconf $ac_lfsvar) >/dev/null 2>&1 || { ac_result=no; break; } |
| ac_getconf=`getconf $ac_lfsvar` |
| ac_getconfs=$ac_getconfs$ac_getconf |
| eval ac_test_$ac_shellvar=\$ac_getconf |
| done |
| case "$ac_result$ac_getconfs" in |
| yes) ac_result=no ;; |
| esac |
| case "$ac_result$ac_set" in |
| yes?*) ac_result="yes, but $ac_set is already set, so use its settings" |
| esac |
| AC_MSG_RESULT($ac_result) |
| case $ac_result in |
| yes) |
| for ac_shellvar in $ac_shellvars; do |
| eval $ac_shellvar=\$ac_test_$ac_shellvar |
| done ;; |
| esac |
| ]) |
