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Diffstat (limited to 'acinclude.m4')
| -rw-r--r-- | acinclude.m4 | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/acinclude.m4 b/acinclude.m4 new file mode 100644 index 0000000..343c333 --- /dev/null +++ b/acinclude.m4 @@ -0,0 +1,131 @@ +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 +]) |