* Makefile.in (DEPMODE, DEPDIR, depcomp, COMPILE.pre)

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

diff --git a/gdb/configure.ac b/gdb/configure.ac
index 1dbebf24faceb4886c000f6e5a77a9f4f971a9de..db528040d6b57f21c8463485c95c795c4312fc1a 100644 (file)
--- a/gdb/configure.ac
+++ b/gdb/configure.ac
@@ -1072,7 +1072,6 @@ fi
 # ------------------------- #
 
 AC_HEADER_DIRENT
-AC_HEADER_STAT
 AC_HEADER_STDC
 # elf_hp.h is for HP/UX 64-bit shared library support.
 AC_CHECK_HEADERS([nlist.h machine/reg.h poll.h sys/poll.h proc_service.h \
@@ -1083,7 +1082,7 @@ AC_CHECK_HEADERS([nlist.h machine/reg.h poll.h sys/poll.h proc_service.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 locale.h \
-                 dlfcn.h sys/socket.h sys/un.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>
@@ -1557,9 +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.
@@ -2054,6 +2053,27 @@ LIBS=$OLD_LIBS
 # Add any host-specific objects to GDB.
 CONFIG_OBS="${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)