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dnl Get things going...
AC_INIT(rc.h)
RELDATE=`cat $srcdir/RELDATE`
AC_DEFINE_UNQUOTED(RELDATE, "$RELDATE")
dnl Automake stuff.
dnl Use this one for snapshots...
dnl AM_INIT_AUTOMAKE(rc, 1.6s`echo $RELDATE |sed 's/-//g'`)
dnl ...and this one for releases
AM_INIT_AUTOMAKE(rc, 1.7)
AM_CONFIG_HEADER(config.h)
dnl Find a standard C compiler
AC_PROG_CC
AM_PROG_CC_STDC
dnl If we're using gcc, specify `-Wall'. I've also checked the code
dnl with `-pedantic -W -Wall -Wpointer-arith -Wstrict-prototypes
dnl -Wmissing-prototypes', and checked that all the warnings generated
dnl are harmless.
case "$GCC" in
yes) CFLAGS="-Wall $CFLAGS" ;;
esac
AC_SYS_LARGEFILE
AC_PROG_CPP
AC_CHECK_PROGS(LN, ln cp)
AC_CHECK_HEADERS(sys/resource.h sys/time.h sys/types.h unistd.h)
AC_HEADER_DIRENT
AC_HEADER_STDC
AC_HEADER_SYS_WAIT
AC_TYPE_GETGROUPS
AC_TYPE_PID_T
AC_TYPE_SIZE_T
AC_TYPE_UID_T
AC_CHECK_TYPE(ssize_t, long)
AC_CHECK_FUNCS(getgroups setpgrp setrlimit)
RC_FUNC_GETGROUPS
RC_FUNC_SIGSETJMP
AC_FUNC_SETPGRP
RC_FUNC_STRERROR
RC_NEED_KERNEL
RC_TYPE_RLIM_T
RC_TYPE_SIG_ATOMIC_T
dnl We prefer system calls that don't restart. If we have sigaction()
dnl and SA_INTERRUPT, we'll use 'em. Otherwise, we check whether good
dnl ol' signal() produces interruptible system calls.
RC_FUNC_SIGACTION
case "$rc_cv_sa_int" in
yes) AC_DEFINE(HAVE_SA_INTERRUPT) ;;
no) AC_SYS_RESTARTABLE_SYSCALLS ;;
esac
AM_CONDITIONAL(AMC_RESTART, test "$ac_cv_sys_restartable_syscalls" = yes)
RC_SYS_V_SIGCLD
dnl Does the kernel handle `#! /interpreter'?
AC_SYS_INTERPRETER
case "$ac_cv_sys_interpreter" in
yes) AC_DEFINE(HASH_BANG) ;;
esac
AM_CONDITIONAL(AMC_NO_HASHBANG, test "$ac_cv_sys_interpreter" = no)
dnl What do we do for command arguments? We want /dev/fd or Linux's
dnl /proc/self/fd. Failing that, we'll try for POSIX mkfifo(), or a
dnl mknod() that makes FIFOs.
RC_SYS_DEV_FD
case "$rc_cv_sys_dev_fd" in
yes) AC_DEFINE(HAVE_DEV_FD) ;;
odd) AC_DEFINE(HAVE_PROC_SELF_FD) ;;
no) AC_CHECK_FUNCS(mkfifo) ;;
esac
case "$ac_cv_func_mkfifo" in
yes) AC_DEFINE(HAVE_FIFO) ;;
no) RC_SYS_MKNOD_FIFO ;;
esac
dnl Now handle arguments.
AC_ARG_ENABLE(builtin-echo, [ --disable-builtin-echo Don't include \`echo' as a builtin],
test "x$enableval" != "xno" && AC_DEFINE(RC_ECHO),
AC_DEFINE(RC_ECHO))
AC_ARG_ENABLE(job, [ --disable-job Don't do job-control-style backgrounding],
test "x$enableval" != "xno" && AC_DEFINE(RC_JOB),
AC_DEFINE(RC_JOB))
AC_ARG_ENABLE(protect-env, [ --disable-protect-env Don't protect environment names],
test "x$enableval" != "xno" && AC_DEFINE(PROTECT_ENV),
AC_DEFINE(PROTECT_ENV))
AC_ARG_ENABLE(def-interp,
[ --enable-def-interp=/bin/foo
Use /bin/foo as default interpreter [/bin/sh]],
[
case "$enableval" in
no)
;;
yes)
AC_DEFINE(DEFAULTINTERP, "/bin/sh")
;;
*)
AC_DEFINE_UNQUOTED(DEFAULTINTERP, "$enableval")
esac
],
AC_DEFINE(DEFAULTINTERP, "/bin/sh"))
AC_ARG_ENABLE(def-path,
[ --enable-def-path=\"/usr/local/bin/\",\"/usr/bin\"
Default path [All of these that exist
(/usr/local/bin /usr/bin /usr/bsd /usr/ucb /bin .)]],
[
case "$enableval" in
no|yes) ;;
*) AC_DEFINE_UNQUOTED(DEFAULTPATH, $enableval) ;;
esac
],
enable_def_path=yes)
case "$enable_def_path" in
yes) AC_CACHE_CHECK(extant directories for default path, rc_cv_def_path,[
rc_cv_def_path=''
for i in /usr/local/bin /usr/bin /usr/bsd /usr/ucb /bin .; do
if test -d $i; then
case "$rc_cv_def_path" in
'') rc_cv_def_path=\"$i\" ;;
*) rc_cv_def_path=$rc_cv_def_path,\"$i\" ;;
esac
fi
done
])
AC_DEFINE_UNQUOTED(DEFAULTPATH, $rc_cv_def_path)
;;
esac
AC_ARG_WITH(history,
[ --with-history Build history subprograms],[
case "$withval" in
yes) rc_history=yes ;;
*) rc_history=no ;;
esac
], rc_history=no)
AM_CONDITIONAL(AMC_HISTORY, test "$rc_history" = yes)
AC_ARG_WITH(addon, [ --with-addon[=foo.c] Extra builtins, from addon.c by default ],[
case "$withval" in
yes) ADDON=addon.o ;;
no) ADDON='' ;;
*) ADDON=`echo $withval |sed 's/\.c$/\.o/'` ;;
esac
])
AM_CONDITIONAL(AMC_ADDON, test "$ADDON" != "")
case "$ADDON" in
?*) AC_DEFINE(RC_ADDON) ;;
esac
AC_SUBST(ADDON)
AC_ARG_WITH(editline, [ --with-editline Simmule Turner's line editing],
AC_CHECK_LIB(edit, readline,
AC_DEFINE(EDITLINE) LIBS="$LIBS -ledit",
AC_MSG_ERROR(editline library not found)))
if test "${with_vrl+set}" = set -o "${with_readline+set}" = set; then
RC_LIB_TGETENT
fi
AC_ARG_WITH(vrl, [ --with-vrl Gert-Jan Vons's line editing],
AC_CHECK_LIB(vrl, readline,
AC_DEFINE(EDITLINE) LIBS="$LIBS -lvrl $rc_lib_tgetent",
AC_MSG_ERROR(vrl library not found), $rc_lib_tgetent))
dnl There are (at least) two incompatible versions of readline, and we
dnl need to know which one we are using. We don't support readline 2.0.
AC_ARG_WITH(readline, [ --with-readline Bloated GNU line editing], [
AC_CHECK_LIB(readline, readline, [
AC_DEFINE(READLINE)
LIBS="$LIBS -lreadline $rc_lib_tgetent"
AC_CHECK_LIB(readline, _rl_clean_up_for_exit, , AC_DEFINE(READLINE_OLD), $rc_lib_tgetent)
], AC_MSG_ERROR(readline library not found), $rc_lib_tgetent)
])
AM_CONDITIONAL(AMC_READLINE, test "${with_readline+set}" = set)
dnl For some reason CPPFLAGS doesn't get propagated.
AC_SUBST(CPPFLAGS)
AC_OUTPUT(Makefile)
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