exit(fl != 1);
}
], bash_cv_dup2_broken=yes, bash_cv_dup2_broken=no,
- AC_MSG_ERROR(cannot check dup2 if cross compiling))
+ [AC_MSG_WARN(cannot check dup2 if cross compiling -- defaulting to no)
+ bash_cv_dup2_broken=no])
])
AC_MSG_RESULT($bash_cv_dup2_broken)
if test $bash_cv_dup2_broken = yes; then
exit(ok ? 0 : 5);
}
], bash_cv_pgrp_pipe=no,bash_cv_pgrp_pipe=yes,
- AC_MSG_ERROR(cannot check pgrp synchronization if cross compiling))
+ [AC_MSG_WARN(cannot check pgrp synchronization if cross compiling -- defaulting to no)
+ bash_cv_pgrp_pipe=no])
])
AC_MSG_RESULT($bash_cv_pgrp_pipe)
if test $bash_cv_pgrp_pipe = yes; then
AC_DEFUN(BASH_RLIMIT_TYPE,
[AC_MSG_CHECKING(for size and type of struct rlimit fields)
AC_CACHE_VAL(bash_cv_type_rlimit,
-[AC_TRY_COMPILE([#include <sys/types.h>],
+[AC_TRY_COMPILE([#include <sys/types.h>
+#include <sys/resource.h>],
[rlim_t xxx;], bash_cv_type_rlimit=rlim_t,[
AC_TRY_RUN([
#include <sys/types.h>
#endif
exit(1);
}], bash_cv_type_rlimit=quad_t, bash_cv_type_rlimit=long,
- AC_MSG_ERROR(cannot check quad_t if cross compiling))])
+ [AC_MSG_WARN(cannot check quad_t if cross compiling -- defaulting to long)
+ bash_cv_type_rlimit=long])])
])
AC_MSG_RESULT($bash_cv_type_rlimit)
if test $bash_cv_type_rlimit = quad_t; then
dnl
dnl Check for sys_siglist[] or _sys_siglist[]
dnl
+AC_DEFUN(BASH_DECL_UNDER_SYS_SIGLIST,
+[AC_MSG_CHECKING([for _sys_siglist in signal.h or unistd.h])
+AC_CACHE_VAL(bash_cv_decl_under_sys_siglist,
+[AC_TRY_COMPILE([
+#include <sys/types.h>
+#include <signal.h>
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif], [ char *msg = _sys_siglist[2]; ],
+ bash_cv_decl_under_sys_siglist=yes, bash_cv_decl_under_sys_siglist=no,
+ [AC_MSG_WARN(cannot check for _sys_siglist[] if cross compiling -- defaulting to no)])])dnl
+AC_MSG_RESULT($bash_cv_decl_under_sys_siglist)
+if test $bash_cv_decl_under_sys_siglist = yes; then
+AC_DEFINE(UNDER_SYS_SIGLIST_DECLARED)
+fi
+])
+
AC_DEFUN(BASH_UNDER_SYS_SIGLIST,
-[AC_MSG_CHECKING([for _sys_siglist in system C library])
+[AC_REQUIRE([BASH_DECL_UNDER_SYS_SIGLIST])
+AC_MSG_CHECKING([for _sys_siglist in system C library])
AC_CACHE_VAL(bash_cv_under_sys_siglist,
[AC_TRY_RUN([
#include <sys/types.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
-#ifndef _sys_siglist
+#ifndef UNDER_SYS_SIGLIST_DECLARED
extern char *_sys_siglist[];
#endif
main()
{
-char *msg = _sys_siglist[2];
+char *msg = (char *)_sys_siglist[2];
exit(msg == 0);
}],
-bash_cv_under_sys_siglist=yes, bash_cv_under_sys_siglist=no,
-AC_MSG_ERROR(cannot check for _sys_siglist[] if cross compiling))])dnl
+ bash_cv_under_sys_siglist=yes, bash_cv_under_sys_siglist=no,
+ [AC_MSG_WARN(cannot check for _sys_siglist[] if cross compiling -- defaulting to no)
+ bash_cv_under_sys_siglist=no])])
AC_MSG_RESULT($bash_cv_under_sys_siglist)
if test $bash_cv_under_sys_siglist = yes; then
AC_DEFINE(HAVE_UNDER_SYS_SIGLIST)
char *msg = sys_siglist[2];
exit(msg == 0);
}],
-bash_cv_sys_siglist=yes, bash_cv_sys_siglist=no,
-AC_MSG_ERROR(cannot check for sys_siglist if cross compiling))])dnl
+ bash_cv_sys_siglist=yes, bash_cv_sys_siglist=no,
+ [AC_MSG_WARN(cannot check for sys_siglist if cross compiling -- defaulting to no)
+ bash_cv_sys_siglist=no])])
AC_MSG_RESULT($bash_cv_sys_siglist)
if test $bash_cv_sys_siglist = yes; then
AC_DEFINE(HAVE_SYS_SIGLIST)
main()
{
DIR *dir;
-int fd;
-unlink("/tmp/not_a_directory");
-fd = open("/tmp/not_a_directory", O_WRONLY|O_CREAT, 0666);
+int fd, err;
+err = mkdir("/tmp/bash-aclocal", 0700);
+if (err < 0) {
+ perror("mkdir");
+ exit(1);
+}
+unlink("/tmp/bash-aclocal/not_a_directory");
+fd = open("/tmp/bash-aclocal/not_a_directory", O_WRONLY|O_CREAT|O_EXCL, 0666);
write(fd, "\n", 1);
close(fd);
-dir = opendir("/tmp/not_a_directory");
-unlink("/tmp/not_a_directory");
+dir = opendir("/tmp/bash-aclocal/not_a_directory");
+unlink("/tmp/bash-aclocal/not_a_directory");
+rmdir("/tmp/bash-aclocal");
exit (dir == 0);
}], bash_cv_opendir_not_robust=yes,bash_cv_opendir_not_robust=no,
- AC_MSG_ERROR(cannot check opendir if cross compiling))])
+ [AC_MSG_WARN(cannot check opendir if cross compiling -- defaulting to no)
+ bash_cv_opendir_not_robust=no]
+)])
AC_MSG_RESULT($bash_cv_opendir_not_robust)
if test $bash_cv_opendir_not_robust = yes; then
AC_DEFINE(OPENDIR_NOT_ROBUST)
fi
])
+dnl
+dnl A signed 16-bit integer quantity
+dnl
+AC_DEFUN(BASH_TYPE_BITS16_T,
+[
+if test "$ac_cv_sizeof_short" = 2; then
+ AC_CHECK_TYPE(bits16_t, short)
+elif test "$ac_cv_sizeof_char" = 2; then
+ AC_CHECK_TYPE(bits16_t, char)
+else
+ AC_CHECK_TYPE(bits16_t, short)
+fi
+])
+
+dnl
+dnl An unsigned 16-bit integer quantity
+dnl
+AC_DEFUN(BASH_TYPE_U_BITS16_T,
+[
+if test "$ac_cv_sizeof_short" = 2; then
+ AC_CHECK_TYPE(u_bits16_t, unsigned short)
+elif test "$ac_cv_sizeof_char" = 2; then
+ AC_CHECK_TYPE(u_bits16_t, unsigned char)
+else
+ AC_CHECK_TYPE(u_bits16_t, unsigned short)
+fi
+])
+
+dnl
+dnl A signed 32-bit integer quantity
+dnl
+AC_DEFUN(BASH_TYPE_BITS32_T,
+[
+if test "$ac_cv_sizeof_int" = 4; then
+ AC_CHECK_TYPE(bits32_t, int)
+elif test "$ac_cv_sizeof_long" = 4; then
+ AC_CHECK_TYPE(bits32_t, long)
+else
+ AC_CHECK_TYPE(bits32_t, int)
+fi
+])
+
+dnl
+dnl An unsigned 32-bit integer quantity
+dnl
+AC_DEFUN(BASH_TYPE_U_BITS32_T,
+[
+if test "$ac_cv_sizeof_int" = 4; then
+ AC_CHECK_TYPE(u_bits32_t, unsigned int)
+elif test "$ac_cv_sizeof_long" = 4; then
+ AC_CHECK_TYPE(u_bits32_t, unsigned long)
+else
+ AC_CHECK_TYPE(u_bits32_t, unsigned int)
+fi
+])
+
+AC_DEFUN(BASH_TYPE_PTRDIFF_T,
+[
+if test "$ac_cv_sizeof_int" = "$ac_cv_sizeof_char_p"; then
+ AC_CHECK_TYPE(ptrdiff_t, int)
+elif test "$ac_cv_sizeof_long" = "$ac_cv_sizeof_char_p"; then
+ AC_CHECK_TYPE(ptrdiff_t, long)
+else
+ AC_CHECK_TYPE(ptrdiff_t, int)
+fi
+])
+
+dnl
+dnl A signed 64-bit quantity
+dnl
+AC_DEFUN(BASH_TYPE_BITS64_T,
+[
+if test "$ac_sv_sizeof_char_p" = 8; then
+ AC_CHECK_TYPE(bits64_t, char *)
+elif test "$ac_cv_sizeof_double" = 8; then
+ AC_CHECK_TYPE(bits64_t, double)
+elif test "$ac_cv_sizeof_long" = 8; then
+ AC_CHECK_TYPE(bits64_t, long)
+else
+ AC_CHECK_TYPE(bits64_t, double)
+fi
+])
+
AC_DEFUN(BASH_FUNC_STRSIGNAL,
-[AC_MSG_CHECKING([for the existance of strsignal])
+[AC_MSG_CHECKING([for the existence of strsignal])
AC_CACHE_VAL(bash_cv_have_strsignal,
[AC_TRY_LINK([#include <sys/types.h>
#include <signal.h>],
[AC_TRY_LINK([
#include <sys/types.h>
#include <sys/stat.h>
-],[ lstat("",(struct stat *)0); ],
+],[ lstat(".",(struct stat *)0); ],
bash_cv_func_lstat=yes, bash_cv_func_lstat=no)])
if test $bash_cv_func_lstat = yes; then
AC_DEFINE(HAVE_LSTAT)
fi
])
+AC_DEFUN(BASH_FUNC_INET_ATON,
+[
+AC_CACHE_CHECK([for inet_aton], bash_cv_func_inet_aton,
+[AC_TRY_LINK([
+#include <sys/types.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+struct in_addr ap;], [ inet_aton("127.0.0.1", &ap); ],
+bash_cv_func_inet_aton=yes, bash_cv_func_inet_aton=no)])
+if test $bash_cv_func_inet_aton = yes; then
+ AC_DEFINE(HAVE_INET_ATON)
+fi
+])
+
AC_DEFUN(BASH_STRUCT_TERMIOS_LDISC,
[AC_MSG_CHECKING([for a c_line member of struct termios])
AC_CACHE_VAL(bash_cv_termios_ldisc,
exit(s == 0); /* force optimizer to leave getenv in */
}
], bash_cv_getenv_redef=yes, bash_cv_getenv_redef=no,
-AC_MSG_ERROR(cannot check getenv redefinition if cross compiling))])
+ [AC_MSG_WARN(cannot check getenv redefinition if cross compiling -- defaulting to yes)
+ bash_cv_getenv_redef=yes]
+)])
AC_MSG_RESULT($bash_cv_getenv_redef)
if test $bash_cv_getenv_redef = yes; then
AC_DEFINE(CAN_REDEFINE_GETENV)
main()
{
_bashfunc pf;
-pf = printf;
+pf = (_bashfunc) printf;
exit(pf == 0);
}
-],bash_cv_printf_declared=yes, bash_cv_printf_declared=no,
-AC_MSG_ERROR(cannot check printf declaration if cross compiling))])
+], bash_cv_printf_declared=yes, bash_cv_printf_declared=no,
+ [AC_MSG_WARN(cannot check printf declaration if cross compiling -- defaulting to yes)
+ bash_cv_printf_declared=yes]
+)])
AC_MSG_RESULT($bash_cv_printf_declared)
if test $bash_cv_printf_declared = yes; then
AC_DEFINE(PRINTF_DECLARED)
long maxfds = ulimit(4, 0L);
exit (maxfds == -1L);
}
-],bash_cv_ulimit_maxfds=yes, bash_cv_ulimit_maxfds=no,
-AC_MSG_ERROR(cannot check ulimit if cross compiling))])
+], bash_cv_ulimit_maxfds=yes, bash_cv_ulimit_maxfds=no,
+ [AC_MSG_WARN(cannot check ulimit if cross compiling -- defaulting to no)
+ bash_cv_ulimit_maxfds=no]
+)])
AC_MSG_RESULT($bash_cv_ulimit_maxfds)
if test $bash_cv_ulimit_maxfds = yes; then
AC_DEFINE(ULIMIT_MAXFDS)
AC_MSG_CHECKING(which library has the termcap functions)
fi
AC_MSG_RESULT(using $bash_cv_termcap_lib)
-if test $bash_cv_termcap_lib = gnutermcap; then
+if test $bash_cv_termcap_lib = gnutermcap && test -z "$prefer_curses"; then
LDFLAGS="$LDFLAGS -L./lib/termcap"
TERMCAP_LIB="./lib/termcap/libtermcap.a"
TERMCAP_DEP="./lib/termcap/libtermcap.a"
exit (popen_called);
}
], bash_cv_getcwd_calls_popen=no, bash_cv_getcwd_calls_popen=yes,
-AC_MSG_ERROR(cannot check whether getcwd calls popen if cross compiling))])
+ [AC_MSG_WARN(cannot check whether getcwd calls popen if cross compiling -- defaulting to no)
+ bash_cv_getcwd_calls_popen=no]
+)])
AC_MSG_RESULT($bash_cv_getcwd_calls_popen)
if test $bash_cv_getcwd_calls_popen = yes; then
AC_DEFINE(GETCWD_BROKEN)
exit(nsigint != 2);
}
], bash_cv_must_reinstall_sighandlers=no, bash_cv_must_reinstall_sighandlers=yes,
-AC_MSG_ERROR(cannot check signal handling if cross compiling))])
+ [AC_MSG_WARN(cannot check signal handling if cross compiling -- defaulting to no)
+ bash_cv_must_reinstall_sighandlers=no]
+)])
AC_MSG_RESULT($bash_cv_must_reinstall_sighandlers)
if test $bash_cv_must_reinstall_sighandlers = yes; then
AC_DEFINE(MUST_REINSTALL_SIGHANDLERS)
#endif
exit(0);
-}],bash_cv_job_control_missing=present, bash_cv_job_control_missing=missing,
- AC_MSG_ERROR(cannot check job control if cross-compiling))
-])
+}], bash_cv_job_control_missing=present, bash_cv_job_control_missing=missing,
+ [AC_MSG_WARN(cannot check job control if cross-compiling -- defaulting to missing)
+ bash_cv_job_control_missing=missing]
+)])
AC_MSG_RESULT($bash_cv_job_control_missing)
if test $bash_cv_job_control_missing = missing; then
AC_DEFINE(JOB_CONTROL_MISSING)
/* Add more tests in here as appropriate. */
main()
{
-int fd;
+int fd, err;
#if defined (HAVE_MKFIFO)
exit (0);
#if defined (NeXT)
exit (1);
#endif
-
-fd = mknod ("/tmp/sh-np-autoconf", 0666 | S_IFIFO, 0);
-if (fd == -1)
+err = mkdir("/tmp/bash-aclocal", 0700);
+if (err < 0) {
+ perror ("mkdir");
+ exit(1);
+}
+fd = mknod ("/tmp/bash-aclocal/sh-np-autoconf", 0666 | S_IFIFO, 0);
+if (fd == -1) {
+ rmdir ("/tmp/bash-aclocal");
exit (1);
+}
close(fd);
-unlink ("/tmp/sh-np-autoconf");
+unlink ("/tmp/bash-aclocal/sh-np-autoconf");
+rmdir ("/tmp/bash-aclocal");
exit(0);
-}],bash_cv_sys_named_pipes=present, bash_cv_sys_named_pipes=missing,
- AC_MSG_ERROR(cannot check for named pipes if cross-compiling))
-])
+}], bash_cv_sys_named_pipes=present, bash_cv_sys_named_pipes=missing,
+ [AC_MSG_WARN(cannot check for named pipes if cross-compiling -- defaulting to missing)
+ bash_cv_sys_named_pipes=missing]
+)])
AC_MSG_RESULT($bash_cv_sys_named_pipes)
if test $bash_cv_sys_named_pipes = missing; then
AC_DEFINE(NAMED_PIPES_MISSING)
siglongjmp(xx, 10);
exit(1);
#endif
-}],bash_cv_func_sigsetjmp=present, bash_cv_func_sigsetjmp=missing,
- AC_MSG_ERROR(cannot check for sigsetjmp/siglongjmp if cross-compiling))
-])
+}], bash_cv_func_sigsetjmp=present, bash_cv_func_sigsetjmp=missing,
+ [AC_MSG_WARN(cannot check for sigsetjmp/siglongjmp if cross-compiling -- defaulting to missing)
+ bash_cv_func_sigsetjmp=missing]
+)])
AC_MSG_RESULT($bash_cv_func_sigsetjmp)
if test $bash_cv_func_sigsetjmp = present; then
AC_DEFINE(HAVE_POSIX_SIGSETJMP)
])
AC_DEFUN(BASH_STRUCT_WINSIZE,
-[AC_MSG_CHECKING(for struct winsize in sys/ioctl.h)
-AC_CACHE_VAL(bash_cv_struct_winsize_in_ioctl,
+[AC_MSG_CHECKING(for struct winsize in sys/ioctl.h and termios.h)
+AC_CACHE_VAL(bash_cv_struct_winsize_header,
[AC_TRY_COMPILE([#include <sys/types.h>
#include <sys/ioctl.h>], [struct winsize x;],
- bash_cv_struct_winsize_in_ioctl=yes,bash_cv_struct_winsize_in_ioctl=no)])
-AC_MSG_RESULT($bash_cv_struct_winsize_in_ioctl)
-if test $bash_cv_struct_winsize_in_ioctl = yes; then
-AC_DEFINE(STRUCT_WINSIZE_IN_SYS_IOCTL)
+ bash_cv_struct_winsize_header=ioctl_h,
+ [AC_TRY_COMPILE([#include <sys/types.h>
+#include <termios.h>], [struct winsize x;],
+ bash_cv_struct_winsize_header=termios_h, bash_cv_struct_winsize_header=other)
+])])
+if test $bash_cv_struct_winsize_header = ioctl_h; then
+ AC_MSG_RESULT(sys/ioctl.h)
+ AC_DEFINE(STRUCT_WINSIZE_IN_SYS_IOCTL)
+elif test $bash_cv_struct_winsize_header = termios_h; then
+ AC_MSG_RESULT(termios.h)
+ AC_DEFINE(STRUCT_WINSIZE_IN_TERMIOS)
+else
+ AC_MSG_RESULT(not found)
fi
])
AC_CACHE_VAL(bash_cv_can_redecl_getpw,
[AC_TRY_COMPILE([#include <sys/types.h>
#include <pwd.h>
-extern struct passwd *getpwent();], [struct passwd *z; z = getpwent();],
+extern struct passwd *getpwent();
+extern struct passwd *getpwuid();
+extern struct passwd *getpwnam();],
+[struct passwd *z; z = getpwent(); z = getpwuid(0); z = getpwnam("root");],
bash_cv_can_redecl_getpw=yes,bash_cv_can_redecl_getpw=no)])
AC_MSG_RESULT($bash_cv_can_redecl_getpw)
if test $bash_cv_can_redecl_getpw = no; then
fi
])
+AC_DEFUN(BASH_CHECK_DEV_STDIN,
+[AC_MSG_CHECKING(whether /dev/stdin stdout stderr are available)
+AC_CACHE_VAL(bash_cv_dev_stdin,
+[if test -d /dev/fd && test -r /dev/stdin; then
+ bash_cv_dev_stdin=present
+ elif test -d /proc/self/fd && test -r /dev/stdin; then
+ bash_cv_dev_stdin=present
+ else
+ bash_cv_dev_stdin=absent
+ fi
+])
+AC_MSG_RESULT($bash_cv_dev_stdin)
+if test $bash_cv_dev_stdin = "present"; then
+ AC_DEFINE(HAVE_DEV_STDIN)
+fi
+])
+
+dnl
+dnl Check for the presence of getpeername in libsocket.
+dnl If libsocket is present, check for libnsl and add it to LIBS if
+dnl it's there, since most systems with libsocket require linking
+dnl with libnsl as well. This should only be called if getpeername
+dnl was not found in libc.
dnl
-dnl Check for the presence of getpeername (the only networking function
-dnl bash currently requires) in libsocket. If libsocket is present,
-dnl check for libnsl and add it to LIBS if it's there, since most
-dnl systems with libsocket require linking with libnsl as well.
-dnl This should only be called if getpeername was not found in libc.
+dnl NOTE: IF WE FIND GETPEERNAME, WE ASSUME THAT WE HAVE BIND/CONNECT
+dnl AS WELL
dnl
AC_DEFUN(BASH_CHECK_SOCKLIB,
[
fi
])
+dnl
+dnl This needs BASH_CHECK_SOCKLIB, but since that's not called on every
+dnl system, we can't use AC_PREREQ
+dnl
+AC_DEFUN(BASH_FUNC_GETHOSTBYNAME,
+[if test "X$bash_cv_have_gethostbyname" = "X"; then
+_bash_needmsg=yes
+else
+AC_MSG_CHECKING(for gethostbyname in socket library)
+_bash_needmsg=
+fi
+AC_CACHE_VAL(bash_cv_have_gethostbyname,
+[AC_TRY_LINK([#include <netdb.h>],
+[ struct hostent *hp;
+ hp = gethostbyname("localhost");
+], bash_cv_have_gethostbyname=yes, bash_cv_have_gethostbyname=no)]
+)
+if test "X$_bash_needmsg" = Xyes; then
+ AC_MSG_CHECKING(for gethostbyname in socket library)
+fi
+AC_MSG_RESULT($bash_cv_have_gethostbyname)
+if test "$bash_cv_have_gethostbyname" = yes; then
+AC_DEFINE(HAVE_GETHOSTBYNAME)
+fi
+])
+
AC_DEFUN(BASH_DEFAULT_MAIL_DIR,
[AC_MSG_CHECKING(for default mail directory)
AC_CACHE_VAL(bash_cv_mail_dir,
bash_cv_mail_dir=/var/mail
elif test -d /usr/mail; then
bash_cv_mail_dir=/usr/mail
- elif test -d /usr/spool/mail; then
- bash_cv_mail_dir=/usr/spool/mail
elif test -d /var/spool/mail; then
bash_cv_mail_dir=/var/spool/mail
+ elif test -d /usr/spool/mail; then
+ bash_cv_mail_dir=/usr/spool/mail
else
bash_cv_mail_dir=unknown
fi
int f;
f = RLIMIT_DATA;
], bash_cv_kernel_rlimit=no,
- [AC_TRY_COMPILE([
- #include <sys/types.h>
- #define _KERNEL
- #include <sys/resource.h>
- #undef _KERNEL
- ],
- [
+[AC_TRY_COMPILE([
+#include <sys/types.h>
+#define _KERNEL
+#include <sys/resource.h>
+#undef _KERNEL
+],
+[
int f;
f = RLIMIT_DATA;
- ], bash_cv_kernel_rlimit=yes, bash_cv_kernel_rlimit=no)]
+], bash_cv_kernel_rlimit=yes, bash_cv_kernel_rlimit=no)]
)])
AC_MSG_RESULT($bash_cv_kernel_rlimit)
if test $bash_cv_kernel_rlimit = yes; then
exit (r1 > 0 && r2 > 0);
}
], bash_cv_func_strcoll_broken=yes, bash_cv_func_strcoll_broken=no,
- AC_MSG_ERROR(cannot check strcoll if cross compiling))
-])
+ [AC_MSG_WARN(cannot check strcoll if cross compiling -- defaulting to no)
+ bash_cv_func_strcoll_broken=no]
+)])
AC_MSG_RESULT($bash_cv_func_strcoll_broken)
if test $bash_cv_func_strcoll_broken = yes; then
AC_DEFINE(STRCOLL_BROKEN)
fi
])
+
+dnl
+dnl If available, use support for large files unless the user specified
+dnl one of the CPPFLAGS, LDFLAGS, or LIBS variables (<eggert@twinsun.com>
+dnl via GNU patch 2.5)
+dnl
+AC_DEFUN(BASH_LARGE_FILE_SUPPORT,
+[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 $ac_shellvar in
+ CPPFLAGS) ac_lfsvar=LFS_CFLAGS ac_lfs64var=LFS64_CFLAGS ;;
+ *) ac_lfsvar=LFS_$ac_shellvar ac_lfs64var=LFS64_$ac_shellvar ;;
+ esac
+ eval test '"${'$ac_shellvar'+set}"' = set && ac_set=$ac_shellvar
+ (getconf $ac_lfsvar) >/dev/null 2>&1 || { ac_result=no; break; }
+ ac_getconf=`getconf $ac_lfsvar`
+ ac_getconf64=`getconf $ac_lfs64var`
+ ac_getconfs=$ac_getconfs$ac_getconf\ $ac_getconf64
+ eval ac_test_$ac_shellvar="\$ac_getconf\ \$ac_getconf64"
+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
+])
+
+dnl
+dnl AC_SYS_RESTARTABLE_SYSCALLS tests only for restarted system calls
+dnl after a signal handler has been installed with signal(). Since
+dnl Bash uses sigaction() if it is available, we need to check whether
+dnl or not a signal handler installed with sigaction and SA_RESTART
+dnl causes system calls to be restarted after the signal is caught
+dnl
+AC_DEFUN(BASH_SYS_RESTARTABLE_SYSCALLS,
+[AC_REQUIRE([BASH_SIGNAL_CHECK])
+AC_CACHE_CHECK(for restartable system calls with posix sigaction,
+bash_cv_sys_restartable_syscalls,
+[AC_TRY_RUN(
+[/* Exit 0 (true) if wait returns something other than -1,
+ i.e. the pid of the child, which means that wait was restarted
+ after getting the signal. */
+#include <sys/types.h>
+#include <signal.h>
+static int caught = 0;
+void ucatch (isig) int isig; { caught = 1; }
+main ()
+{
+#if !defined (_POSIX_VERSION) || !defined (HAVE_POSIX_SIGNALS)
+ exit (1);
+#else
+ struct sigaction act, oact;
+ int i, status;
+
+ act.sa_handler = ucatch;
+ /* Might want to add SA_RESTART here, but bash's set_signal_handler
+ does not. */
+ act.sa_flags = 0;
+ sigemptyset(&act.sa_mask);
+ sigemptyset(&oact.sa_mask);
+ i = fork ();
+ /* A possible race condition here, but in practice it never happens. */
+ if (i == 0) { sleep (3); kill (getppid (), SIGINT); sleep (3); exit (0); }
+ sigaction(SIGINT, &act, &oact);
+ status = wait(&i);
+ if (status == -1) wait(&i);
+ exit (status == -1);
+#endif
+}
+], bash_cv_sys_restartable_syscalls=yes, bash_cv_sys_restartable_syscalls=no,
+ AC_MSG_WARN(cannot check restartable syscalls if cross compiling))
+])
+if test $bash_cv_sys_restartable_syscalls = yes; then
+ AC_DEFINE(HAVE_RESTARTABLE_SYSCALLS)
+fi
+])
+dnl
+dnl Check for 64-bit off_t -- used for malloc alignment
+dnl
+dnl C does not allow duplicate case labels, so the compile will fail if
+dnl sizeof(off_t) is > 4.
+dnl
+AC_DEFUN(BASH_CHECK_OFF_T_64,
+[AC_CACHE_CHECK(for 64-bit off_t, bash_cv_off_t_64,
+AC_TRY_COMPILE([
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#include <sys/types.h>
+],[
+switch (0) case 0: case (sizeof (off_t) <= 4):;
+], bash_cv_off_t_64=no, bash_cv_off_t_64=yes))
+if test $bash_cv_off_t_64 = yes; then
+ AC_DEFINE(HAVE_OFF_T_64)
+fi])
+
+AC_DEFUN(BASH_STRUCT_TIMEVAL,
+[AC_MSG_CHECKING(for struct timeval in sys/time.h and time.h)
+AC_CACHE_VAL(bash_cv_struct_timeval,
+[
+AC_EGREP_HEADER(struct timeval, sys/time.h,
+ bash_cv_struct_timeval=yes,
+ AC_EGREP_HEADER(struct timeval, time.h,
+ bash_cv_struct_timeval=yes,
+ bash_cv_struct_timeval=no))
+])
+AC_MSG_RESULT($bash_cv_struct_timeval)
+if test $bash_cv_struct_timeval = yes; then
+ AC_DEFINE(HAVE_TIMEVAL)
+fi
+])
projects / platform / upstream / bash.git / blobdiff