*** empty log message ***

[deliverable/binutils-gdb.git] / gdb / configure.in

diff --git a/gdb/configure.in b/gdb/configure.in
index ea24ea278c2334f1b6fa4b1adbeb605b2368f659..544b6de01d4525609c88a5f531ea843d460f47ad 100644 (file)
--- a/gdb/configure.in
+++ b/gdb/configure.in
@@ -264,6 +264,9 @@ AC_CHECK_LIB(m, main)
 AC_CHECK_FUNC(wctype, [],
   [AC_CHECK_LIB(w, wctype)])
 
+# Some systems (e.g. Solaris) have `gethostbyname' in libnsl.
+AC_SEARCH_LIBS(gethostbyname, nsl)
+
 # Some systems (e.g. Solaris) have `socketpair' in libsocket.
 AC_SEARCH_LIBS(socketpair, socket)
 
@@ -357,6 +360,12 @@ AC_CHECK_HEADERS(curses.h ncurses.h term.h)
 # unconditionally, so what's the point in checking these?
 AC_CHECK_HEADERS(ctype.h time.h)
 
+# ------------------------- #
+# Checks for declarations.  #
+# ------------------------- #
+
+gcc_AC_CHECK_DECLS(getopt)
+
 # ------------------ #
 # Checks for types.  #
 # ------------------ #
@@ -384,6 +393,7 @@ AC_CHECK_FUNCS(sbrk)
 AC_CHECK_FUNCS(setpgid setpgrp)
 AC_CHECK_FUNCS(sigaction sigprocmask sigsetmask)
 AC_CHECK_FUNCS(socketpair)
+AC_CHECK_FUNCS(syscall)
 
 dnl AC_FUNC_SETPGRP does not work when cross compiling
 dnl Instead, assume we will have a prototype for setpgrp if cross compiling.
@@ -511,6 +521,17 @@ if test $gdb_cv_have_pt_getxmmregs = yes; then
   AC_DEFINE(HAVE_PT_GETXMMREGS)
 fi
 
+# See if stdint.h provides the uintptr_t type.
+# Autoconf 2.5X has an improved AC_CHECK_TYPE which will simplify this.
+AC_CACHE_CHECK([for uintptr_t in stdint.h], gdb_cv_have_uintptr_t,
+  [AC_TRY_COMPILE(
+    [#include <stdint.h>],
+    [uintptr_t foo = 0;],
+    gdb_cv_have_uintptr_t=yes,
+    gdb_cv_have_uintptr_t=no)])
+if test $gdb_cv_have_uintptr_t = yes; then
+  AC_DEFINE(HAVE_UINTPTR_T, 1, [Define if <stdint.h> provides the uintptr_t type.])
+fi
 
 BFD_NEED_DECLARATION(malloc)
 BFD_NEED_DECLARATION(realloc)
@@ -899,13 +920,31 @@ if test "x$gdb_cv_thread_db_h_has_td_notalloc" = "xyes"; then
             [Define if <thread_db.h> has the TD_NOTALLOC error code.])
 fi
 
+dnl See if we have a sys/syscall header file that has __NR_tkill.
+if test "x$ac_cv_header_sys_syscall_h" = "xyes"; then
+   AC_CACHE_CHECK([whether <sys/syscall.h> has __NR_tkill],
+                  gdb_cv_sys_syscall_h_has_tkill,
+     AC_TRY_COMPILE(
+       [#include <sys/syscall.h>],
+       [int i = __NR_tkill;],
+       gdb_cv_sys_syscall_h_has_tkill=yes,
+       gdb_cv_sys_syscall_h_has_tkill=no
+     )
+   )
+fi
+dnl See if we can issue tkill syscall.
+if test "x$gdb_cv_sys_syscall_h_has_tkill" = "xyes" && test "x$ac_cv_func_syscall" = "xyes"; then
+  AC_DEFINE(HAVE_TKILL_SYSCALL, 1,
+            [Define if we can use the tkill syscall.])
+fi
+
 dnl Handle optional features that can be enabled.
 
 AC_ARG_WITH(sysroot,
 [  --with-sysroot[=DIR] Search for usr/lib et al within DIR.],
 [
  case ${with_sysroot} in
- yes) AC_ERROR(with-sysroot must specify path) ;;
+ yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_alias}/sys-root' ;;
  *) TARGET_SYSTEM_ROOT=$with_sysroot ;;
  esac
 
@@ -921,7 +960,8 @@ AC_ARG_WITH(sysroot,
   test_prefix=$exec_prefix
  fi
  case ${TARGET_SYSTEM_ROOT} in
- ${test_prefix}*)
+ "${test_prefix}"|"${test_prefix}/"*|\
+ '${exec_prefix}'|'${exec_prefix}/'*)
    t="$TARGET_SYSTEM_ROOT_DEFINE -DTARGET_SYSTEM_ROOT_RELOCATABLE"
    TARGET_SYSTEM_ROOT_DEFINE="$t"
    ;;
@@ -938,7 +978,7 @@ AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE)
 # NOTE: If you add to this list, remember to update
 # gdb/doc/gdbint.texinfo.
 build_warnings="-Wimplicit -Wreturn-type -Wcomment -Wtrigraphs \
--Wformat -Wparentheses -Wpointer-arith -Wuninitialized"
+-Wformat -Wparentheses -Wpointer-arith -Wuninitialized -Wformat-nonliteral"
 # Up for debate: -Wswitch -Wcomment -trigraphs -Wtrigraphs
 # -Wunused-function -Wunused-label -Wunused-variable -Wunused-value
 # -Wchar-subscripts -Wtraditional -Wshadow -Wcast-qual
@@ -1266,10 +1306,6 @@ targetfile=`sed -n '
 s/TM_FILE[     ]*=[    ]*\([^  ]*\)/\1/p
 ' ${target_makefile_frag}`
 
-GDB_MULTI_ARCH=`sed -n '
-s/GDB_MULTI_ARCH[      ]*=[    ]*\([^  ]*\)[   ]*/\1/p
-' ${target_makefile_frag}`
-
 if test "${target}" = "${host}"; then
 # We pick this up from the host configuration file (.mh) because we
 # do not have a native configuration Makefile fragment.
@@ -1279,33 +1315,6 @@ s/NAT_FILE[      ]*=[    ]*\([^  ]*\)/\1/p
 fi
 changequote([,])
 
-# New targets should just set gdb_multi_arch=yes in configure.tgt.
-# Old targets being converted can either do that or set GDB_MULTI_ARCH
-# in the target specific makefile frag.  Eventually gdb_multi_arch=yes
-# will be the default.
-if test x"${GDB_MULTI_ARCH}" = x ; then
-    case "${gdb_multi_arch}" in
-    yes ) GDB_MULTI_ARCH=GDB_MULTI_ARCH_PURE ;;
-    no ) GDB_MULTI_ARCH=0 ;;
-    0|1|2 ) GDB_MULTI_ARCH=${gdb_multi_arch} ;;
-    esac
-fi
-if test x"${GDB_MULTI_ARCH}" != x ; then
-    AC_DEFINE_UNQUOTED(GDB_MULTI_ARCH, ${GDB_MULTI_ARCH})
-fi
-# Warn the user when they use an old practice
-case "${GDB_MULTI_ARCH}" in
-    "" ) ;;
-    0 | GDB_MULTI_ARCH_PARTIAL | 1 | GDB_MULTI_ARCH_TM | 2 )
-       AC_MSG_WARN("GDB: Target is not pure multi-arch") ;;
-    GDB_MULTI_ARCH_PURE )
-       if test x"${targetfile}" != x ; then
-           AC_MSG_WARN("GDB: Ignoring TM_FILE in ${target_makefile_frag}")
-           targetfile=""
-       fi ;;
-    *)  AC_MSG_ERROR("GDB: Unknown GDB_MULTI_ARCH value ${GDB_MULTI_ARCH}");;
-esac
-
 if test x"${gdb_osabi}" != x ; then
     AC_DEFINE_UNQUOTED(GDB_OSABI_DEFAULT, $gdb_osabi,
                       [Define to the default OS ABI for this configuration.])
@@ -1398,7 +1407,7 @@ AC_OUTPUT(Makefile .gdbinit:gdbinit.in,
 dnl Autoconf doesn't provide a mechanism for modifying definitions 
 dnl provided by makefile fragments.
 dnl
-if test "${target}" != "${host}"; then
+if test "${nativefile}" = ""; then
         < Makefile \
         sed -e '/^NATDEPFILES[[        ]]*=.*\\$/,/[[^\\]]$/s/^/# /' \
             -e '/^NATDEPFILES[[        ]]*=/s/^/# /' \