X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=gas%2Fconfigure;h=b6298b56dcf5cff306806ca927295ac7f93d8e73;hb=8b8c7c9f49992750f66f81b4601d593a3858d98c;hp=cd7182f2942db258f204bf8a948c20984c961c54;hpb=0cb4071ef9e10f703220f5e731141bf438aca16e;p=deliverable%2Fbinutils-gdb.git

diff --git a/gas/configure b/gas/configure
index cd7182f294..b6298b56dc 100755
--- a/gas/configure
+++ b/gas/configure
@@ -640,6 +640,7 @@ target_cpu_type
 extra_objects
 cgen_cpu_prefix
 GDBINIT
+WARN_WRITE_STRINGS
 NO_WERROR
 WARN_CFLAGS
 OTOOL64
@@ -664,6 +665,7 @@ CPP
 am__fastdepCC_FALSE
 am__fastdepCC_TRUE
 CCDEPMODE
+am__nodep
 AMDEPBACKSLASH
 AMDEP_FALSE
 AMDEP_TRUE
@@ -766,6 +768,7 @@ enable_targets
 enable_checking
 enable_compressed_debug_sections
 enable_x86_relax_relocations
+enable_elf_stt_common
 enable_werror
 enable_build_warnings
 enable_nls
@@ -1418,6 +1421,8 @@ Optional Features:
                           compress debug sections by default
   --enable-x86-relax-relocations
                           generate x86 relax relocations by default
+  --enable-elf-stt-common generate ELF common symbols with STT_COMMON type by
+                          default
   --enable-werror         treat compile warnings as errors
   --enable-build-warnings enable build-time compiler warnings
   --disable-nls           do not use Native Language Support
@@ -3699,6 +3704,7 @@ fi
 if test "x$enable_dependency_tracking" != xno; then
   am_depcomp="$ac_aux_dir/depcomp"
   AMDEPBACKSLASH='\'
+  am__nodep='_no'
 fi
  if test "x$enable_dependency_tracking" != xno; then
   AMDEP_TRUE=
@@ -3761,11 +3767,11 @@ MAKEINFO=${MAKEINFO-"${am_missing_run}makeinfo"}
 
 # We need awk for the "check" target.  The system "awk" is bad on
 # some platforms.
-# Always define AMTAR for backward compatibility.
+# Always define AMTAR for backward compatibility.  Yes, it's still used
+# in the wild :-(  We should find a proper way to deprecate it ...
+AMTAR='$${TAR-tar}'
 
-AMTAR=${AMTAR-"${am_missing_run}tar"}
-
-am__tar='${AMTAR} chof - "$$tardir"'; am__untar='${AMTAR} xf -'
+am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'
 
 
 
@@ -3783,6 +3789,7 @@ else
   # instance it was reported that on HP-UX the gcc test will end up
   # making a dummy file named `D' -- because `-MD' means `put the output
   # in D'.
+  rm -rf conftest.dir
   mkdir conftest.dir
   # Copy depcomp to subdir because otherwise we won't find it if we're
   # using a relative directory.
@@ -3842,7 +3849,7 @@ else
 	break
       fi
       ;;
-    msvisualcpp | msvcmsys)
+    msvc7 | msvc7msys | msvisualcpp | msvcmsys)
       # This compiler won't grok `-c -o', but also, the minuso test has
       # not run yet.  These depmodes are late enough in the game, and
       # so weak that their functioning should not be impacted.
@@ -10975,7 +10982,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 10978 "configure"
+#line 10985 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -11081,7 +11088,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 11084 "configure"
+#line 11091 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -11694,13 +11701,27 @@ if test "${enable_x86_relax_relocations+set}" = set; then :
 esac
 fi
 
+# Decide if ELF assembler should generate common symbols with the
+# STT_COMMON type.
+ac_default_elf_stt_common=unset
+# Provide a configure time option to override our default.
+# Check whether --enable-elf_stt_common was given.
+if test "${enable_elf_stt_common+set}" = set; then :
+  enableval=$enable_elf_stt_common; case "${enableval}" in
+  yes)  ac_default_elf_stt_common=1 ;;
+esac
+fi
+
 using_cgen=no
 
 
 # Set the 'development' global.
 . $srcdir/../bfd/development.sh
 
+# Default set of GCC warnings to enable.
 GCC_WARN_CFLAGS="-W -Wall -Wstrict-prototypes -Wmissing-prototypes"
+
+# Add -Wshadow if the compiler is a sufficiently recent version of GCC.
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 __GNUC__
@@ -11714,6 +11735,35 @@ fi
 rm -f conftest*
 
 
+# Add -Wstack-usage if the compiler is a sufficiently recent version of GCC.
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+__GNUC__
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "^[0-4]$" >/dev/null 2>&1; then :
+
+else
+  GCC_WARN_CFLAGS="$GCC_WARN_CFLAGS -Wstack-usage=262144"
+fi
+rm -f conftest*
+
+
+# Set WARN_WRITE_STRINGS if the compiler supports -Wwrite-strings.
+WARN_WRITE_STRINGS=""
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+__GNUC__
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "^[0-3]$" >/dev/null 2>&1; then :
+
+else
+  WARN_WRITE_STRINGS="-Wwrite-strings"
+fi
+rm -f conftest*
+
+
 # Check whether --enable-werror was given.
 if test "${enable_werror+set}" = set; then :
   enableval=$enable_werror; case "${enableval}" in
@@ -11773,6 +11823,7 @@ fi
 
 
 
+
 # Generate a header file
 ac_config_headers="$ac_config_headers config.h:config.in"
 
@@ -12539,6 +12590,15 @@ cat >>confdefs.h <<_ACEOF
 _ACEOF
 
 
+if test ${ac_default_elf_stt_common} = unset; then
+  ac_default_elf_stt_common=0
+fi
+
+cat >>confdefs.h <<_ACEOF
+#define DEFAULT_GENERATE_ELF_STT_COMMON $ac_default_elf_stt_common
+_ACEOF
+
+
 if test x$ac_default_compressed_debug_sections = xyes ; then
 
 $as_echo "#define DEFAULT_FLAG_COMPRESS_DEBUG 1" >>confdefs.h