syscall: Add more constants.

[pf3gnuchains/gcc-fork.git] / libgo / configure.ac

diff --git a/libgo/configure.ac b/libgo/configure.ac
index c3c1f5e..f1d0bfc 100644 (file)
--- a/libgo/configure.ac
+++ b/libgo/configure.ac
@@ -33,8 +33,6 @@ AC_SUBST(CFLAGS)
 
 AM_MAINTAINER_MODE
 
-AC_INCLUDES_DEFAULT
-
 AC_PROG_LD
 AC_PROG_RANLIB
 AC_CHECK_TOOL(OBJCOPY, objcopy, missing-objcopy)
@@ -58,7 +56,6 @@ AC_SUBST(WERROR)
 
 glibgo_toolexecdir=no
 glibgo_toolexeclibdir=no
-glibgo_prefixdir=$prefix
 
 AC_MSG_CHECKING([for --enable-version-specific-runtime-libs])
 AC_ARG_ENABLE([version-specific-runtime-libs],
@@ -80,25 +77,28 @@ fi
 
 # Calculate glibgo_toolexecdir, glibgo_toolexeclibdir
 # Install a library built with a cross compiler in tooldir, not libdir.
+if test -n "$with_cross_host" &&
+   test x"$with_cross_host" != x"no"; then
+  nover_glibgo_toolexecdir='${exec_prefix}/${host_alias}'
+  nover_glibgo_toolexeclibdir='${toolexecdir}/lib'
+else
+  nover_glibgo_toolexecdir='${libdir}/gcc/${host_alias}'
+  nover_glibgo_toolexeclibdir='${libdir}'
+fi
+multi_os_directory=`$CC -print-multi-os-directory`
+case $multi_os_directory in
+  .) ;; # Avoid trailing /.
+  *) nover_glibgo_toolexeclibdir=${nover_glibgo_toolexeclibdir}/${multi_os_directory} ;;
+esac
+
 if test x"$glibgo_toolexecdir" = x"no"; then
-  if test -n "$with_cross_host" &&
-     test x"$with_cross_host" != x"no"; then
-    glibgo_toolexecdir='${exec_prefix}/${host_alias}'
-    glibgo_toolexeclibdir='${toolexecdir}/lib'
-  else
-    glibgo_toolexecdir='${libdir}/gcc/${host_alias}'
-    glibgo_toolexeclibdir='${libdir}'
-  fi
-  multi_os_directory=`$CC -print-multi-os-directory`
-  case $multi_os_directory in
-    .) ;; # Avoid trailing /.
-    *) glibgo_toolexeclibdir=$glibgo_toolexeclibdir/$multi_os_directory ;;
-  esac
+  glibgo_toolexecdir="${nover_glibgo_toolexecdir}"
+  glibgo_toolexeclibdir="${nover_glibgo_toolexeclibdir}"
 fi
 
-AC_SUBST(glibgo_prefixdir)
 AC_SUBST(glibgo_toolexecdir)
 AC_SUBST(glibgo_toolexeclibdir)
+AC_SUBST(nover_glibgo_toolexeclibdir)
 
 # See if the user wants to configure without libffi.  Some
 # architectures don't support it.  FIXME: We should set a default
@@ -400,6 +400,12 @@ dnl Test if -lrt is required for sched_yield.
 AC_SEARCH_LIBS([sched_yield], [rt])
 
 AC_C_BIGENDIAN
+case $ac_cv_c_bigendian in
+  yes) GO_BIGENDIAN=true ;;
+  no) GO_BIGENDIAN=false ;;
+  *) AC_MSG_ERROR([unknown endianness]) ;;
+esac
+AC_SUBST(GO_BIGENDIAN)
 
 GCC_CHECK_UNWIND_GETIPINFO
 
@@ -453,7 +459,7 @@ no)
   ;;
 esac
 
-AC_CHECK_HEADERS(sys/mman.h syscall.h sys/epoll.h sys/ptrace.h sys/syscall.h sys/user.h sys/utsname.h sys/select.h sys/socket.h net/if.h sys/prctl.h)
+AC_CHECK_HEADERS(sys/mman.h syscall.h sys/epoll.h sys/ptrace.h sys/syscall.h sys/user.h sys/utsname.h sys/select.h sys/socket.h net/if.h net/if_arp.h sys/prctl.h sys/mount.h sys/vfs.h sys/statfs.h sys/timex.h sys/sysinfo.h utime.h linux/ether.h linux/reboot.h)
 
 AC_CHECK_HEADERS([linux/filter.h linux/netlink.h linux/rtnetlink.h], [], [],
 [#ifdef HAVE_SYS_SOCKET_H
@@ -461,13 +467,32 @@ AC_CHECK_HEADERS([linux/filter.h linux/netlink.h linux/rtnetlink.h], [], [],
 #endif
 ])
 
+AC_CACHE_CHECK([whether <ustat.h> can be used],
+[libgo_cv_c_ustat_h],
+[CFLAGS_hold=$CFLAGS
+CFLAGS="$CFLAGS -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE $OSCFLAGS"
+AC_COMPILE_IFELSE(
+[AC_LANG_SOURCE([
+#include <sys/types.h>
+#ifdef HAVE_LINUX_FILTER_H
+#include <linux/filter.h>
+#endif
+#include <ustat.h>
+])], [libgo_cv_c_ustat_h=yes], [libgo_cv_c_ustat_h=no])
+CFLAGS=$CFLAGS_hold])
+if test $libgo_cv_c_ustat_h = yes; then
+  AC_DEFINE(HAVE_USTAT_H, 1,
+    [Define to 1 if you have the <ustat.h> header file and it works.])
+fi
+
 AM_CONDITIONAL(HAVE_SYS_MMAN_H, test "$ac_cv_header_sys_mman_h" = yes)
 
 AC_CHECK_FUNCS(strerror_r strsignal wait4 mincore setenv)
 AM_CONDITIONAL(HAVE_STRERROR_R, test "$ac_cv_func_strerror_r" = yes)
 AM_CONDITIONAL(HAVE_WAIT4, test "$ac_cv_func_wait4" = yes)
 
-AC_CHECK_FUNCS(epoll_create1 faccessat fchmodat fchownat futimesat inotify_add_watch inotify_init inotify_rm_watch mkdirat mknodat openat renameat splice tee unlinkat unshare)
+AC_CHECK_FUNCS(epoll_create1 faccessat fallocate fchmodat fchownat futimesat inotify_add_watch inotify_init inotify_init1 inotify_rm_watch mkdirat mknodat openat renameat sync_file_range splice tee unlinkat unshare)
+AC_TYPE_OFF_T
 AC_CHECK_TYPES([loff_t])
 
 CFLAGS_hold="$CFLAGS"
@@ -609,6 +634,21 @@ if test "$libgo_has_struct_exception" = "yes"; then
             [Define to 1 if <math.h> defines struct exception])
 fi
 
+dnl Check if makecontext expects the uc_stack member of ucontext to point
+dnl to the top of the stack.
+case "$target" in
+  sparc*-*-solaris2.[[89]]*)
+    libgo_cv_lib_makecontext_stack_top=yes
+    ;;
+  *)
+    libgo_cv_lib_makecontext_stack_top=no
+    ;;
+esac
+if test "$libgo_cv_lib_makecontext_stack_top" = "yes"; then
+  AC_DEFINE(MAKECONTEXT_STACK_TOP, 1,
+           [Define if makecontext expects top of stack in uc_stack.])
+fi
+
 dnl See whether setcontext changes the value of TLS variables.
 AC_CACHE_CHECK([whether setcontext clobbers TLS variables],
 [libgo_cv_lib_setcontext_clobbers_tls],
@@ -665,6 +705,9 @@ main ()
     abort ();
 
   c.uc_stack.ss_sp = stack;
+#ifdef MAKECONTEXT_STACK_TOP
+  c.uc_stack.ss_sp += sizeof stack;
+#endif
   c.uc_stack.ss_flags = 0;
   c.uc_stack.ss_size = sizeof stack;
   c.uc_link = NULL;