merge from gcc

[binutils-gdb.git] / gdb / configure.ac

diff --git a/gdb/configure.ac b/gdb/configure.ac
index f0b7df372722765d200fb051d7962548f2ffd271..de096b8d2a76205545763a9422ea87bc97cb1985 100644 (file)
--- a/gdb/configure.ac
+++ b/gdb/configure.ac
@@ -1,5 +1,5 @@
 dnl Autoconf configure script for GDB, the GNU debugger.
-dnl Copyright (C) 1995-2012 Free Software Foundation, Inc.
+dnl Copyright (C) 1995-2013 Free Software Foundation, Inc.
 dnl
 dnl This file is part of GDB.
 dnl 
@@ -1072,11 +1072,8 @@ fi
 # ------------------------- #
 
 AC_HEADER_DIRENT
-AC_HEADER_STAT
 AC_HEADER_STDC
 # elf_hp.h is for HP/UX 64-bit shared library support.
-# FIXME: kettenis/20030102: In most cases we include these (ctype.h, time.h)
-# unconditionally, so what's the point in checking these?
 AC_CHECK_HEADERS([nlist.h machine/reg.h poll.h sys/poll.h proc_service.h \
                   thread_db.h signal.h stddef.h \
                  stdlib.h string.h memory.h strings.h sys/fault.h \
@@ -1084,8 +1081,8 @@ AC_CHECK_HEADERS([nlist.h machine/reg.h poll.h sys/poll.h proc_service.h \
                  sys/resource.h sys/procfs.h sys/ptrace.h ptrace.h \
                  sys/reg.h sys/debugreg.h sys/select.h sys/syscall.h \
                  sys/types.h sys/wait.h wait.h termios.h termio.h \
-                 sgtty.h unistd.h elf_hp.h ctype.h time.h locale.h \
-                 dlfcn.h sys/socket.h sys/un.h])
+                 sgtty.h unistd.h elf_hp.h locale.h \
+                 dlfcn.h sys/socket.h sys/un.h linux/perf_event.h])
 AC_CHECK_HEADERS(link.h, [], [],
 [#if HAVE_SYS_TYPES_H
 # include <sys/types.h>
@@ -1390,11 +1387,11 @@ if test $gdb_cv_have_pt_getxmmregs = yes; then
   [Define if sys/ptrace.h defines the PT_GETXMMREGS request.])
 fi
 
-# Detect which type of /proc is in use, such as for Unixware or Solaris.
+# Detect which type of /proc is in use, such as for Solaris.
 
 if test "${target}" = "${host}"; then
   case "${host}" in
-  *-*-unixware* | *-*-sysv4.2* | *-*-sysv5* | *-*-interix* )
+  *-*-sysv4.2* | *-*-sysv5* | *-*-interix* )
       AC_DEFINE(NEW_PROC_API, 1,
       [Define if you want to use new multi-fd /proc interface
        (replaces HAVE_MULTIPLE_PROC_FDS as well as other macros).])
@@ -1559,9 +1556,9 @@ AC_CACHE_CHECK([for long long support in compiler], gdb_cv_c_long_long,
 [[switch (foo & 2) { case 0: return 1; }]])],
                                   gdb_cv_c_long_long=yes,
                                   gdb_cv_c_long_long=no)])
-if test $gdb_cv_c_long_long = yes; then
-  AC_DEFINE(CC_HAS_LONG_LONG, 1,
-            [Define to 1 if the compiler supports long long.])
+if test $gdb_cv_c_long_long != yes; then
+  # libdecnumber requires long long.
+  AC_MSG_ERROR([Compiler must support long long for GDB.])
 fi
 
 # Check if the compiler and runtime support printing long longs.
@@ -2018,44 +2015,49 @@ esac
 AC_SUBST(WIN32LIBS)
 
 # Add ELF support to GDB, but only if BFD includes ELF support.
-OLD_CFLAGS=$CFLAGS
-OLD_LDFLAGS=$LDFLAGS
-OLD_LIBS=$LIBS
-# Put the old CFLAGS/LDFLAGS last, in case the user's (C|LD)FLAGS
-# points somewhere with bfd, with -I/foo/lib and -L/foo/lib.  We
-# always want our bfd.
-CFLAGS="-I${srcdir}/../include -I../bfd -I${srcdir}/../bfd $CFLAGS"
-LDFLAGS="-L../bfd -L../libiberty $LDFLAGS"
-intl=`echo $LIBINTL | sed 's,${top_builddir}/,,g'`
-# -ldl is provided by bfd/Makfile.am (LIBDL) <PLUGINS>.
-if test "$plugins" = "yes"; then
-  LIBS="-ldl $LIBS"
-fi
-LIBS="-lbfd -liberty $intl $LIBS"
-AC_CACHE_CHECK([for ELF support in BFD], gdb_cv_var_elf,
-[AC_TRY_LINK(
-[#include <stdlib.h>
-#include "bfd.h"
-#include "elf-bfd.h"
-],
-[bfd *abfd = NULL; bfd_get_elf_phdr_upper_bound (abfd); ],
-gdb_cv_var_elf=yes, gdb_cv_var_elf=no)])
+GDB_AC_CHECK_BFD([for ELF support in BFD], gdb_cv_var_elf,
+                 [bfd_get_elf_phdr_upper_bound (NULL)], elf-bfd.h)
 if test $gdb_cv_var_elf = yes; then
   CONFIG_OBS="$CONFIG_OBS elfread.o stap-probe.o"
   AC_DEFINE(HAVE_ELF, 1,
            [Define if ELF support should be included.])
   # -ldl is provided by bfd/Makfile.am (LIBDL) <PLUGINS>.
   if test "$plugins" = "yes"; then
-    OLD_LIBS="-ldl $OLD_LIBS"
+    LIBS="-ldl $LIBS"
   fi
 fi
-CFLAGS=$OLD_CFLAGS
-LDFLAGS=$OLD_LDFLAGS
-LIBS=$OLD_LIBS
+
+# Add macho support to GDB, but only if BFD includes it.
+GDB_AC_CHECK_BFD([for Mach-O support in BFD], gdb_cv_var_macho,
+                 [bfd_mach_o_lookup_command (NULL, 0, NULL)], mach-o.h)
+if test $gdb_cv_var_macho = yes; then
+  CONFIG_OBS="$CONFIG_OBS machoread.o"
+fi
 
 # Add any host-specific objects to GDB.
 CONFIG_OBS="${CONFIG_OBS} ${gdb_host_obs}"
 
+# If building on ELF, look for lzma support for embedded compressed debug info.
+if test $gdb_cv_var_elf = yes; then
+  AC_ARG_WITH(lzma,
+    AS_HELP_STRING([--with-lzma], [support lzma compression (auto/yes/no)]),
+    [], [with_lzma=auto])
+  AC_MSG_CHECKING([whether to use lzma])
+  AC_MSG_RESULT([$with_lzma])
+
+  if test "${with_lzma}" != no; then
+    AC_LIB_HAVE_LINKFLAGS([lzma], [], [#include "lzma.h"],
+                         [lzma_index_iter iter;
+                          lzma_index_iter_init (&iter, 0);
+                          lzma_mf_is_supported (LZMA_MF_HC3);])
+    if test "$HAVE_LIBLZMA" != yes; then
+      if test "$with_lzma" = yes; then
+        AC_MSG_ERROR([missing liblzma for --with-lzma])
+      fi
+    fi
+  fi
+fi
+
 LIBGUI="../libgui/src/libgui.a"
 GUI_CFLAGS_X="-I${srcdir}/../libgui/src"
 AC_SUBST(LIBGUI)