Update the tcmalloc vendor branch to r111 (perftools version 1.8)

third_party/tcmalloc/vendor/configure

 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.65 for google-perftools 1.7.
+# Generated by GNU Autoconf 2.65 for google-perftools 1.8.
 #
 # Report bugs to <opensource@google.com>.
 #
 #
 # Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001,
 # 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation,
 # Inc.
 #
 #
 # This configure script is free software; the Free Software Foundation
@@ skipping 680 matching lines @@
 ac_config_libobj_dir=.
 LIBOBJS=
 cross_compiling=no
 subdirs=
 MFLAGS=
 MAKEFLAGS=
 
 # Identity of this package.
 PACKAGE_NAME='google-perftools'
 PACKAGE_TARNAME='google-perftools'
-PACKAGE_VERSION='1.7'
-PACKAGE_STRING='google-perftools 1.7'
+PACKAGE_VERSION='1.8'
+PACKAGE_STRING='google-perftools 1.8'
 PACKAGE_BUGREPORT='opensource@google.com'
 PACKAGE_URL=''
 
 ac_unique_file="README"
 # Factoring default headers for most tests.
 ac_includes_default="\
 #include <stdio.h>
 #ifdef HAVE_SYS_TYPES_H
 # include <sys/types.h>
 #endif
@@ skipping 35 matching lines @@
 WITH_HEAP_PROFILER_OR_CHECKER_FALSE
 WITH_HEAP_PROFILER_OR_CHECKER_TRUE
 WITH_DEBUGALLOC_FALSE
 WITH_DEBUGALLOC_TRUE
 WITH_HEAP_CHECKER_FALSE
 WITH_HEAP_CHECKER_TRUE
 WITH_HEAP_PROFILER_FALSE
 WITH_HEAP_PROFILER_TRUE
 WITH_CPU_PROFILER_FALSE
 WITH_CPU_PROFILER_TRUE
+OSX_FALSE
+OSX_TRUE
 MINGW_FALSE
 MINGW_TRUE
 PTHREAD_CFLAGS
 PTHREAD_LIBS
 PTHREAD_CC
 acx_pthread_config
 LIBSTDCXX_LA_LINKER_FLAG
 NANOSLEEP_LIBS
+HAVE_W_NO_UNUSED_RESULT_FALSE
+HAVE_W_NO_UNUSED_RESULT_TRUE
 X86_64_AND_NO_FP_BY_DEFAULT_FALSE
 X86_64_AND_NO_FP_BY_DEFAULT_TRUE
 ENABLE_FRAME_POINTERS_FALSE
 ENABLE_FRAME_POINTERS_TRUE
 UNWIND_LIBS
 ENABLE_STATIC_FALSE
 ENABLE_STATIC_TRUE
 ac_cv_have_struct_mallinfo
 USE_LIBTOOL_FALSE
 USE_LIBTOOL_TRUE
@@ skipping 682 matching lines @@
   eval ac_cv_env_${ac_var}_value=\$${ac_var}
 done
 
 #
 # Report the --help message.
 #
 if test "$ac_init_help" = "long"; then
   # Omit some internal or obsolete options to make the list less imposing.
   # This message is too long to be a string in the A/UX 3.1 sh.
   cat <<_ACEOF
-\`configure' configures google-perftools 1.7 to adapt to many kinds of systems.
+\`configure' configures google-perftools 1.8 to adapt to many kinds of systems.
 
 Usage: $0 [OPTION]... [VAR=VALUE]...
 
 To assign environment variables (e.g., CC, CFLAGS...), specify them as
 VAR=VALUE.  See below for descriptions of some of the useful variables.
 
 Defaults for the options are specified in brackets.
 
 Configuration:
   -h, --help              display this help and exit
@@ skipping 50 matching lines @@
   --program-transform-name=PROGRAM   run sed PROGRAM on installed program names
 
 System types:
   --build=BUILD     configure for building on BUILD [guessed]
   --host=HOST       cross-compile to build programs to run on HOST [BUILD]
 _ACEOF
 fi
 
 if test -n "$ac_init_help"; then
   case $ac_init_help in
-     short | recursive ) echo "Configuration of google-perftools 1.7:";;
+     short | recursive ) echo "Configuration of google-perftools 1.8:";;
    esac
   cat <<\_ACEOF
 
 Optional Features:
   --disable-option-checking  ignore unrecognized --enable/--with options
   --disable-FEATURE       do not include FEATURE (same as --enable-FEATURE=no)
   --enable-FEATURE[=ARG]  include FEATURE [ARG=yes]
   --disable-cpu-profiler  do not build the cpu profiler
   --disable-heap-profiler do not build the heap profiler
   --disable-heap-checker  do not build the heap checker
@@ skipping 89 matching lines @@
     else
       $as_echo "$as_me: WARNING: no configuration information is in $ac_dir" >&2
     fi || ac_status=$?
     cd "$ac_pwd" || { ac_status=$?; break; }
   done
 fi
 
 test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
   cat <<\_ACEOF
-google-perftools configure 1.7
+google-perftools configure 1.8
 generated by GNU Autoconf 2.65
 
 Copyright (C) 2009 Free Software Foundation, Inc.
 This configure script is free software; the Free Software Foundation
 gives unlimited permission to copy, distribute and modify it.
 _ACEOF
   exit
 fi
 
 ## ------------------------ ##
@@ skipping 564 matching lines @@
 eval ac_res=\$$3
                { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
 $as_echo "$ac_res" >&6; }
   eval $as_lineno_stack; test "x$as_lineno_stack" = x && { as_lineno=; unset as_lineno;}
 
 } # ac_fn_c_check_decl
 cat >config.log <<_ACEOF
 This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.
 
-It was created by google-perftools $as_me 1.7, which was
+It was created by google-perftools $as_me 1.8, which was
 generated by GNU Autoconf 2.65.  Invocation command line was
 
   $ $0 $@
 
 _ACEOF
 exec 5>>config.log
 {
 cat <<_ASUNAME
 ## --------- ##
 ## Platform. ##
@@ skipping 331 matching lines @@
 
 ac_ext=c
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
 ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
 ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
 
 # Update this value for every release!  (A:B:C will map to foo.so.(A-C).C.B)
 # http://www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html
-TCMALLOC_SO_VERSION=1:0:1
-PROFILER_SO_VERSION=1:0:1
+TCMALLOC_SO_VERSION=2:0:2
+PROFILER_SO_VERSION=1:1:1
 
 
 
 
 # The argument here is just something that should be in the current directory
 # (for sanity checking)
 
 
 ac_aux_dir=
 for ac_dir in "$srcdir" "$srcdir/.." "$srcdir/../.."; do
@@ skipping 371 matching lines @@
   if (cygpath --version) >/dev/null 2>/dev/null; then
     CYGPATH_W='cygpath -w'
   else
     CYGPATH_W=echo
   fi
 fi
 
 
 # Define the identity of the package.
  PACKAGE='google-perftools'
- VERSION='1.7'
+ VERSION='1.8'
 
 
 cat >>confdefs.h <<_ACEOF
 #define PACKAGE "$PACKAGE"
 _ACEOF
 
 
 cat >>confdefs.h <<_ACEOF
 #define VERSION "$VERSION"
 _ACEOF
@@ skipping 2609 matching lines @@
 
 
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking the name lister ($NM) interface" >&5
 $as_echo_n "checking the name lister ($NM) interface... " >&6; }
 if test "${lt_cv_nm_interface+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   lt_cv_nm_interface="BSD nm"
   echo "int some_variable = 0;" > conftest.$ac_ext
-  (eval echo "\"\$as_me:5612: $ac_compile\"" >&5)
+  (eval echo "\"\$as_me:5616: $ac_compile\"" >&5)
   (eval "$ac_compile" 2>conftest.err)
   cat conftest.err >&5
-  (eval echo "\"\$as_me:5615: $NM \\\"conftest.$ac_objext\\\"\"" >&5)
+  (eval echo "\"\$as_me:5619: $NM \\\"conftest.$ac_objext\\\"\"" >&5)
   (eval "$NM \"conftest.$ac_objext\"" 2>conftest.err > conftest.out)
   cat conftest.err >&5
-  (eval echo "\"\$as_me:5618: output\"" >&5)
+  (eval echo "\"\$as_me:5622: output\"" >&5)
   cat conftest.out >&5
   if $GREP 'External.*some_variable' conftest.out > /dev/null; then
     lt_cv_nm_interface="MS dumpbin"
   fi
   rm -f conftest*
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_nm_interface" >&5
 $as_echo "$lt_cv_nm_interface" >&6; }
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether ln -s works" >&5
@@ skipping 1184 matching lines @@
         ;;
       *ELF-64*)
         HPUX_IA64_MODE="64"
         ;;
     esac
   fi
   rm -rf conftest*
   ;;
 *-*-irix6*)
   # Find out which ABI we are using.
-  echo '#line 6823 "configure"' > conftest.$ac_ext
+  echo '#line 6827 "configure"' > conftest.$ac_ext
   if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
   $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
     if test "$lt_cv_prog_gnu_ld" = yes; then
       case `/usr/bin/file conftest.$ac_objext` in
         *32-bit*)
           LD="${LD-ld} -melf32bsmip"
           ;;
@@ skipping 1852 matching lines @@
    lt_compiler_flag="-fno-rtti -fno-exceptions"
    # Insert the option either (1) after the last *FLAGS variable, or
    # (2) before a word containing "conftest.", or (3) at the end.
    # Note that $ac_compile itself does not contain backslashes and begins
    # with a dollar sign (not a hyphen), so the echo should work correctly.
    # The option is referenced via a variable to avoid confusing sed.
    lt_compile=`echo "$ac_compile" | $SED \
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:8696: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:8700: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>conftest.err)
    ac_status=$?
    cat conftest.err >&5
-   echo "$as_me:8700: \$? = $ac_status" >&5
+   echo "$as_me:8704: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s "$ac_outfile"; then
      # The compiler can only warn and ignore the option if not recognized
      # So say no if there are warnings other than the usual output.
      $ECHO "X$_lt_compiler_boilerplate" | $Xsed -e '/^$/d' >conftest.exp
      $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
      if test ! -s conftest.er2 || diff conftest.exp conftest.er2 >/dev/null; then
        lt_cv_prog_compiler_rtti_exceptions=yes
      fi
    fi
    $RM conftest*
@@ skipping 314 matching lines @@
    lt_compiler_flag="$lt_prog_compiler_pic -DPIC"
    # Insert the option either (1) after the last *FLAGS variable, or
    # (2) before a word containing "conftest.", or (3) at the end.
    # Note that $ac_compile itself does not contain backslashes and begins
    # with a dollar sign (not a hyphen), so the echo should work correctly.
    # The option is referenced via a variable to avoid confusing sed.
    lt_compile=`echo "$ac_compile" | $SED \
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:9035: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:9039: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>conftest.err)
    ac_status=$?
    cat conftest.err >&5
-   echo "$as_me:9039: \$? = $ac_status" >&5
+   echo "$as_me:9043: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s "$ac_outfile"; then
      # The compiler can only warn and ignore the option if not recognized
      # So say no if there are warnings other than the usual output.
      $ECHO "X$_lt_compiler_boilerplate" | $Xsed -e '/^$/d' >conftest.exp
      $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
      if test ! -s conftest.er2 || diff conftest.exp conftest.er2 >/dev/null; then
        lt_cv_prog_compiler_pic_works=yes
      fi
    fi
    $RM conftest*
@@ skipping 80 matching lines @@
 
    lt_compiler_flag="-o out/conftest2.$ac_objext"
    # Insert the option either (1) after the last *FLAGS variable, or
    # (2) before a word containing "conftest.", or (3) at the end.
    # Note that $ac_compile itself does not contain backslashes and begins
    # with a dollar sign (not a hyphen), so the echo should work correctly.
    lt_compile=`echo "$ac_compile" | $SED \
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:9140: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:9144: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>out/conftest.err)
    ac_status=$?
    cat out/conftest.err >&5
-   echo "$as_me:9144: \$? = $ac_status" >&5
+   echo "$as_me:9148: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s out/conftest2.$ac_objext
    then
      # The compiler can only warn and ignore the option if not recognized
      # So say no if there are warnings
      $ECHO "X$_lt_compiler_boilerplate" | $Xsed -e '/^$/d' > out/conftest.exp
      $SED '/^$/d; /^ *+/d' out/conftest.err >out/conftest.er2
      if test ! -s out/conftest.er2 || diff out/conftest.exp out/conftest.er2 >/dev/null; then
        lt_cv_prog_compiler_c_o=yes
      fi
    fi
@@ skipping 30 matching lines @@
 
    lt_compiler_flag="-o out/conftest2.$ac_objext"
    # Insert the option either (1) after the last *FLAGS variable, or
    # (2) before a word containing "conftest.", or (3) at the end.
    # Note that $ac_compile itself does not contain backslashes and begins
    # with a dollar sign (not a hyphen), so the echo should work correctly.
    lt_compile=`echo "$ac_compile" | $SED \
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:9195: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:9199: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>out/conftest.err)
    ac_status=$?
    cat out/conftest.err >&5
-   echo "$as_me:9199: \$? = $ac_status" >&5
+   echo "$as_me:9203: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s out/conftest2.$ac_objext
    then
      # The compiler can only warn and ignore the option if not recognized
      # So say no if there are warnings
      $ECHO "X$_lt_compiler_boilerplate" | $Xsed -e '/^$/d' > out/conftest.exp
      $SED '/^$/d; /^ *+/d' out/conftest.err >out/conftest.er2
      if test ! -s out/conftest.er2 || diff out/conftest.exp out/conftest.er2 >/dev/null; then
        lt_cv_prog_compiler_c_o=yes
      fi
    fi
@@ skipping 2359 matching lines @@
 $as_echo_n "checking whether a program can dlopen itself... " >&6; }
 if test "${lt_cv_dlopen_self+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
           if test "$cross_compiling" = yes; then :
   lt_cv_dlopen_self=cross
 else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 11579 "configure"
+#line 11583 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
 #include <dlfcn.h>
 #endif
 
 #include <stdio.h>
 
 #ifdef RTLD_GLOBAL
 #  define LT_DLGLOBAL           RTLD_GLOBAL
@@ skipping 75 matching lines @@
 $as_echo_n "checking whether a statically linked program can dlopen itself... " >&6; }
 if test "${lt_cv_dlopen_self_static+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
           if test "$cross_compiling" = yes; then :
   lt_cv_dlopen_self_static=cross
 else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 11675 "configure"
+#line 11679 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
 #include <dlfcn.h>
 #endif
 
 #include <stdio.h>
 
 #ifdef RTLD_GLOBAL
 #  define LT_DLGLOBAL           RTLD_GLOBAL
@@ skipping 1935 matching lines @@
    lt_compiler_flag="$lt_prog_compiler_pic_CXX -DPIC"
    # Insert the option either (1) after the last *FLAGS variable, or
    # (2) before a word containing "conftest.", or (3) at the end.
    # Note that $ac_compile itself does not contain backslashes and begins
    # with a dollar sign (not a hyphen), so the echo should work correctly.
    # The option is referenced via a variable to avoid confusing sed.
    lt_compile=`echo "$ac_compile" | $SED \
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:13631: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:13635: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>conftest.err)
    ac_status=$?
    cat conftest.err >&5
-   echo "$as_me:13635: \$? = $ac_status" >&5
+   echo "$as_me:13639: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s "$ac_outfile"; then
      # The compiler can only warn and ignore the option if not recognized
      # So say no if there are warnings other than the usual output.
      $ECHO "X$_lt_compiler_boilerplate" | $Xsed -e '/^$/d' >conftest.exp
      $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
      if test ! -s conftest.er2 || diff conftest.exp conftest.er2 >/dev/null; then
        lt_cv_prog_compiler_pic_works_CXX=yes
      fi
    fi
    $RM conftest*
@@ skipping 74 matching lines @@
 
    lt_compiler_flag="-o out/conftest2.$ac_objext"
    # Insert the option either (1) after the last *FLAGS variable, or
    # (2) before a word containing "conftest.", or (3) at the end.
    # Note that $ac_compile itself does not contain backslashes and begins
    # with a dollar sign (not a hyphen), so the echo should work correctly.
    lt_compile=`echo "$ac_compile" | $SED \
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:13730: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:13734: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>out/conftest.err)
    ac_status=$?
    cat out/conftest.err >&5
-   echo "$as_me:13734: \$? = $ac_status" >&5
+   echo "$as_me:13738: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s out/conftest2.$ac_objext
    then
      # The compiler can only warn and ignore the option if not recognized
      # So say no if there are warnings
      $ECHO "X$_lt_compiler_boilerplate" | $Xsed -e '/^$/d' > out/conftest.exp
      $SED '/^$/d; /^ *+/d' out/conftest.err >out/conftest.er2
      if test ! -s out/conftest.er2 || diff out/conftest.exp out/conftest.er2 >/dev/null; then
        lt_cv_prog_compiler_c_o_CXX=yes
      fi
    fi
@@ skipping 27 matching lines @@
 
    lt_compiler_flag="-o out/conftest2.$ac_objext"
    # Insert the option either (1) after the last *FLAGS variable, or
    # (2) before a word containing "conftest.", or (3) at the end.
    # Note that $ac_compile itself does not contain backslashes and begins
    # with a dollar sign (not a hyphen), so the echo should work correctly.
    lt_compile=`echo "$ac_compile" | $SED \
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:13782: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:13786: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>out/conftest.err)
    ac_status=$?
    cat out/conftest.err >&5
-   echo "$as_me:13786: \$? = $ac_status" >&5
+   echo "$as_me:13790: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s out/conftest2.$ac_objext
    then
      # The compiler can only warn and ignore the option if not recognized
      # So say no if there are warnings
      $ECHO "X$_lt_compiler_boilerplate" | $Xsed -e '/^$/d' > out/conftest.exp
      $SED '/^$/d; /^ *+/d' out/conftest.err >out/conftest.er2
      if test ! -s out/conftest.er2 || diff out/conftest.exp out/conftest.er2 >/dev/null; then
        lt_cv_prog_compiler_c_o_CXX=yes
      fi
    fi
@@ skipping 2145 matching lines @@
   X86_64_AND_NO_FP_BY_DEFAULT_TRUE=
   X86_64_AND_NO_FP_BY_DEFAULT_FALSE='#'
 else
   X86_64_AND_NO_FP_BY_DEFAULT_TRUE='#'
   X86_64_AND_NO_FP_BY_DEFAULT_FALSE=
 fi
 
 rm fp.s
 CFLAGS="$OLD_CFLAGS"
 
+# See if the compiler supports -Wno-unused-result.
+# Newer ubuntu's turn on -D_FORTIFY_SOURCE=2, enabling
+# __attribute__((warn_unused_result)) for things like write(),
+# which we don't care about.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if the compiler supports -Wno-unused-result" >&5
+$as_echo_n "checking if the compiler supports -Wno-unused-result... " >&6; }
+if test "${perftools_cv_w_no_unused_result+set}" = set; then :
+  $as_echo_n "(cached) " >&6
+else
+  OLD_CFLAGS="$CFLAGS"
+                CFLAGS="$CFLAGS -Wno-error -Wno-unused-result"
+                # gcc doesn't warn about unknown flags unless it's
+                # also warning for some other purpose, hence the
+                # divide-by-0.  (We use -Wno-error to make sure the
+                # divide-by-0 doesn't cause this test to fail!)
+                cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+return 1/0
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  perftools_cv_w_no_unused_result=yes
+else
+  perftools_cv_w_no_unused_result=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+                CFLAGS="$OLD_CFLAGS"
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $perftools_cv_w_no_unused_result" >&5
+$as_echo "$perftools_cv_w_no_unused_result" >&6; }
+
+
+if test "$perftools_cv_w_no_unused_result" = yes; then
+  HAVE_W_NO_UNUSED_RESULT_TRUE=
+  HAVE_W_NO_UNUSED_RESULT_FALSE='#'
+else
+  HAVE_W_NO_UNUSED_RESULT_TRUE='#'
+  HAVE_W_NO_UNUSED_RESULT_FALSE=
+fi
+
 
 # Defines PRIuS
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking printf format code for printing a size_t and ssize_t" >&5
 $as_echo_n "checking printf format code for printing a size_t and ssize_t... " >&6; }
 if test "${ac_cv_formatting_prius_prefix+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <stddef.h>
@@ skipping 146 matching lines @@
 
                 { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 else
   { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 fi
 rm -f core conftest.err conftest.$ac_objext \
     conftest$ac_exeext conftest.$ac_ext
 
+# glibc's __malloc_hook/etc were declared volatile starting in glibc 2.14
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if __malloc_hook is declared volatile" >&5
+$as_echo_n "checking if __malloc_hook is declared volatile... " >&6; }
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <malloc.h>
+void* (* volatile __malloc_hook)(size_t, const void*) = 0;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+
+$as_echo "#define MALLOC_HOOK_MAYBE_VOLATILE volatile" >>confdefs.h
+
+                   { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+else
+  $as_echo "#define MALLOC_HOOK_MAYBE_VOLATILE /**/" >>confdefs.h
+,
+                   { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
 # Nanosleep requires extra libraries on some architectures (solaris).
 # This sets NANOSLEEP_LIBS.  nanosleep doesn't exist on mingw, which
 # is fine for us because we don't compile libspinlock, which uses it.
 if test "$need_nanosleep" = yes; then
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking if nanosleep requires any libraries" >&5
 $as_echo_n "checking if nanosleep requires any libraries... " >&6; }
 
  ac_ext=c
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
@@ skipping 842 matching lines @@
 
 # In theory, config.h files shouldn't need a header guard, but we do,
 # because we (maybe) #include windows/mingw.h from within config.h,
 # and it #includes other .h files.  These all have header guards, so
 # the end result is if config.h is #included twice, its #undefs get
 # evaluated twice, but all the ones in mingw.h/etc only get evaluated
 # once, potentially causing trouble.  c.f.
 #   http://code.google.com/p/google-perftools/issues/detail?id=246
 
 
+
+
 # MinGW uses autoconf, but also needs the windows shim routines
 # (since it doesn't have its own support for, say, pthreads).
 # This requires us to #include a special header file, and also to
 # link in some windows versions of .o's instead of the unix versions.
+#
+# Also, manually mark systems where we have to be careful how early
+# we run pthreads.  TODO(csilvers): turn this into an autoconf check.
 
 
 
 if expr $host : '.*-mingw' >/dev/null 2>&1; then
   MINGW_TRUE=
   MINGW_FALSE='#'
 else
   MINGW_TRUE='#'
   MINGW_FALSE=
 fi
 
 
+
+if expr $host : '.*-apple-darwin.*' >/dev/null 2>&1; then
+  OSX_TRUE=
+  OSX_FALSE='#'
+else
+  OSX_TRUE='#'
+  OSX_FALSE=
+fi
+
+
 # Redhat 7 (and below?) has sys/ucontext.h, but if you try to #include
 # it directly, the compiler gets upset.  So we pretend we don't have
 # it.
 if cat /etc/redhat-release 2>/dev/null | grep "Red Hat Linux release 7" >/dev/null 2>&1; then
 
 $as_echo "#define HAVE_SYS_UCONTEXT_H 0" >>confdefs.h
 
 fi
 
 # Export the --enable flags we set above.  We do this at the end so
@@ skipping 198 matching lines @@
 Usually this means the macro was only invoked conditionally." "$LINENO" 5
 fi
 if test -z "${ENABLE_FRAME_POINTERS_TRUE}" && test -z "${ENABLE_FRAME_POINTERS_FALSE}"; then
   as_fn_error "conditional \"ENABLE_FRAME_POINTERS\" was never defined.
 Usually this means the macro was only invoked conditionally." "$LINENO" 5
 fi
 if test -z "${X86_64_AND_NO_FP_BY_DEFAULT_TRUE}" && test -z "${X86_64_AND_NO_FP_BY_DEFAULT_FALSE}"; then
   as_fn_error "conditional \"X86_64_AND_NO_FP_BY_DEFAULT\" was never defined.
 Usually this means the macro was only invoked conditionally." "$LINENO" 5
 fi
+if test -z "${HAVE_W_NO_UNUSED_RESULT_TRUE}" && test -z "${HAVE_W_NO_UNUSED_RESULT_FALSE}"; then
+  as_fn_error "conditional \"HAVE_W_NO_UNUSED_RESULT\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
 if test -z "${MINGW_TRUE}" && test -z "${MINGW_FALSE}"; then
   as_fn_error "conditional \"MINGW\" was never defined.
 Usually this means the macro was only invoked conditionally." "$LINENO" 5
 fi
+if test -z "${OSX_TRUE}" && test -z "${OSX_FALSE}"; then
+  as_fn_error "conditional \"OSX\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
 if test -z "${WITH_CPU_PROFILER_TRUE}" && test -z "${WITH_CPU_PROFILER_FALSE}"; then
   as_fn_error "conditional \"WITH_CPU_PROFILER\" was never defined.
 Usually this means the macro was only invoked conditionally." "$LINENO" 5
 fi
 if test -z "${WITH_HEAP_PROFILER_TRUE}" && test -z "${WITH_HEAP_PROFILER_FALSE}"; then
   as_fn_error "conditional \"WITH_HEAP_PROFILER\" was never defined.
 Usually this means the macro was only invoked conditionally." "$LINENO" 5
 fi
 if test -z "${WITH_HEAP_CHECKER_TRUE}" && test -z "${WITH_HEAP_CHECKER_FALSE}"; then
   as_fn_error "conditional \"WITH_HEAP_CHECKER\" was never defined.
@@ skipping 412 matching lines @@
 ## Main body of $CONFIG_STATUS script. ##
 ## ----------------------------------- ##
 _ASEOF
 test $as_write_fail = 0 && chmod +x $CONFIG_STATUS || ac_write_fail=1
 
 cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
 # Save the log message, to keep $0 and so on meaningful, and to
 # report actual input values of CONFIG_FILES etc. instead of their
 # values after options handling.
 ac_log="
-This file was extended by google-perftools $as_me 1.7, which was
+This file was extended by google-perftools $as_me 1.8, which was
 generated by GNU Autoconf 2.65.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
   CONFIG_HEADERS  = $CONFIG_HEADERS
   CONFIG_LINKS    = $CONFIG_LINKS
   CONFIG_COMMANDS = $CONFIG_COMMANDS
   $ $0 $@
 
 on `(hostname || uname -n) 2>/dev/null | sed 1q`
 "
@@ skipping 45 matching lines @@
 
 Configuration commands:
 $config_commands
 
 Report bugs to <opensource@google.com>."
 
 _ACEOF
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
 ac_cs_version="\\
-google-perftools config.status 1.7
+google-perftools config.status 1.8
 configured by $0, generated by GNU Autoconf 2.65,
   with options \\"\$ac_cs_config\\"
 
 Copyright (C) 2009 Free Software Foundation, Inc.
 This config.status script is free software; the Free Software Foundation
 gives unlimited permission to copy, distribute and modify it."
 
 ac_pwd='$ac_pwd'
 srcdir='$srcdir'
 INSTALL='$INSTALL'
@@ skipping 1958 matching lines @@
   exec 5>>config.log
   # Use ||, not &&, to avoid exiting from the if with $? = 1, which
   # would make configure fail if this is the last instruction.
   $ac_cs_success || as_fn_exit $?
 fi
 if test -n "$ac_unrecognized_opts" && test "$enable_option_checking" != no; then
   { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: unrecognized options: $ac_unrecognized_opts" >&5
 $as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2;}
 fi