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iains/0001-c-tools-configury-Configure-with-C-test-checking-sta.patch

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0001-c-tools-configury-Configure-with-C-test-checking-sta.patch
From ea19ab9479aa40d602650734f943cb85a259bd25 Mon Sep 17 00:00:00 2001
From: Iain Sandoe <iain@sandoe.co.uk>
Date: Tue, 20 Jul 2021 14:00:38 +0100
Subject: [PATCH] c++tools, configury: Configure with C++; test checking status
[PR98821].
The configure fragments need to be built with a C++ compiler.
The stand-alone server uses diagnostic mechanisms in common with
GCC, but needs to define implementations of the asserts and supporting
output funtions.
Signed-off-by: Iain Sandoe <iain@sandoe.co.uk>
Co-authored-by: Jakub Jelinek <jakub@redhat.com>
PR c++/98821 - modules : c++tools configures with CC but code fragments assume CXX.
PR c++/98821
c++tools/ChangeLog:
* config.h.in: Regenerate.
* configure: Regenerate.
* configure.ac: Configure using C++. Pull logic to
detect enabled chcking modes.
* server.cc (AI_NUMERICSERV): Define a fallback value.
(gcc_assert): New.
(gcc_checking_assert): New.
(gcc_unreachable): New.
(fancy_abort): Only build when checking is enabled.
---
c++tools/config.h.in | 10 +
c++tools/configure | 763 +++++++-----------------------------------
c++tools/configure.ac | 51 +++
c++tools/server.cc | 35 ++
4 files changed, 216 insertions(+), 643 deletions(-)
diff --git a/c++tools/config.h.in b/c++tools/config.h.in
index bfb49582357..555008ad899 100644
--- a/c++tools/config.h.in
+++ b/c++tools/config.h.in
@@ -1,5 +1,15 @@
/* config.h.in. Generated from configure.ac by autoheader. */
+/* Define to 1 if you want more run-time sanity checks. */
+#undef CHECKING_P
+
+/* Define if you want assertions enabled. This is a cheap check. */
+#undef ENABLE_ASSERT_CHECKING
+
+/* Define if you want to workaround valgrind (a memory checker) warnings about
+ possible memory leaks because of libcpp use of interior pointers. */
+#undef ENABLE_VALGRIND_CHECKING
+
/* Define if accept4 provided. */
#undef HAVE_ACCEPT4
diff --git a/c++tools/configure b/c++tools/configure
index a288f7abe5d..dc8b711763f 100755
--- a/c++tools/configure
+++ b/c++tools/configure
@@ -626,10 +626,7 @@ NETLIBS
get_gcc_base_ver
EGREP
GREP
-CPP
-ac_ct_CC
-CFLAGS
-CC
+CXXCPP
PIEFLAG
MAINTAINER
CXX_AUX_TOOLS
@@ -701,6 +698,7 @@ ac_user_opts='
enable_option_checking
enable_c___tools
enable_maintainer_mode
+enable_checking
enable_default_pie
with_gcc_major_version_only
'
@@ -713,9 +711,7 @@ LDFLAGS
LIBS
CPPFLAGS
CCC
-CC
-CFLAGS
-CPP'
+CXXCPP'
# Initialize some variables set by options.
@@ -1332,6 +1328,11 @@ Optional Features:
--enable-maintainer-mode
enable maintainer mode. Add rules to rebuild
configurey bits
+ --enable-checking[=LIST]
+ enable expensive run-time checks. With LIST, enable
+ only specific categories of checks. Categories are:
+ yes,no,all,none,release. Flags are: misc,valgrind or
+ other strings
--enable-default-pie enable Position Independent Executable as default
Optional Packages:
@@ -1348,9 +1349,7 @@ Some influential environment variables:
LIBS libraries to pass to the linker, e.g. -l<library>
CPPFLAGS (Objective) C/C++ preprocessor flags, e.g. -I<include dir> if
you have headers in a nonstandard directory <include dir>
- CC C compiler command
- CFLAGS C compiler flags
- CPP C preprocessor
+ CXXCPP C++ preprocessor
Use these variables to override the choices made by `configure' or to help
it to find libraries and programs with nonstandard names/locations.
@@ -1470,48 +1469,10 @@ fi
} # ac_fn_cxx_try_compile
-# ac_fn_c_try_compile LINENO
-# --------------------------
-# Try to compile conftest.$ac_ext, and return whether this succeeded.
-ac_fn_c_try_compile ()
-{
- as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
- rm -f conftest.$ac_objext
- if { { ac_try="$ac_compile"
-case "(($ac_try" in
- *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
- *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-$as_echo "$ac_try_echo"; } >&5
- (eval "$ac_compile") 2>conftest.err
- ac_status=$?
- if test -s conftest.err; then
- grep -v '^ *+' conftest.err >conftest.er1
- cat conftest.er1 >&5
- mv -f conftest.er1 conftest.err
- fi
- $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
- test $ac_status = 0; } && {
- test -z "$ac_c_werror_flag" ||
- test ! -s conftest.err
- } && test -s conftest.$ac_objext; then :
- ac_retval=0
-else
- $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
- ac_retval=1
-fi
- eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
- as_fn_set_status $ac_retval
-
-} # ac_fn_c_try_compile
-
-# ac_fn_c_try_cpp LINENO
-# ----------------------
+# ac_fn_cxx_try_cpp LINENO
+# ------------------------
# Try to preprocess conftest.$ac_ext, and return whether this succeeded.
-ac_fn_c_try_cpp ()
+ac_fn_cxx_try_cpp ()
{
as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
if { { ac_try="$ac_cpp conftest.$ac_ext"
@@ -1530,7 +1491,7 @@ $as_echo "$ac_try_echo"; } >&5
fi
$as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
test $ac_status = 0; } > conftest.i && {
- test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" ||
+ test -z "$ac_cxx_preproc_warn_flag$ac_cxx_werror_flag" ||
test ! -s conftest.err
}; then :
ac_retval=0
@@ -1543,14 +1504,14 @@ fi
eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
as_fn_set_status $ac_retval
-} # ac_fn_c_try_cpp
+} # ac_fn_cxx_try_cpp
-# ac_fn_c_check_header_mongrel LINENO HEADER VAR INCLUDES
-# -------------------------------------------------------
+# ac_fn_cxx_check_header_mongrel LINENO HEADER VAR INCLUDES
+# ---------------------------------------------------------
# Tests whether HEADER exists, giving a warning if it cannot be compiled using
# the include files in INCLUDES and setting the cache variable VAR
# accordingly.
-ac_fn_c_check_header_mongrel ()
+ac_fn_cxx_check_header_mongrel ()
{
as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
if eval \${$3+:} false; then :
@@ -1571,7 +1532,7 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
$4
#include <$2>
_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"; then :
ac_header_compiler=yes
else
ac_header_compiler=no
@@ -1587,7 +1548,7 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
#include <$2>
_ACEOF
-if ac_fn_c_try_cpp "$LINENO"; then :
+if ac_fn_cxx_try_cpp "$LINENO"; then :
ac_header_preproc=yes
else
ac_header_preproc=no
@@ -1597,7 +1558,7 @@ rm -f conftest.err conftest.i conftest.$ac_ext
$as_echo "$ac_header_preproc" >&6; }
# So? What about this header?
-case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in #((
+case $ac_header_compiler:$ac_header_preproc:$ac_cxx_preproc_warn_flag in #((
yes:no: )
{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: accepted by the compiler, rejected by the preprocessor!" >&5
$as_echo "$as_me: WARNING: $2: accepted by the compiler, rejected by the preprocessor!" >&2;}
@@ -1630,13 +1591,13 @@ $as_echo "$ac_res" >&6; }
fi
eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
-} # ac_fn_c_check_header_mongrel
+} # ac_fn_cxx_check_header_mongrel
-# ac_fn_c_try_run LINENO
-# ----------------------
+# ac_fn_cxx_try_run LINENO
+# ------------------------
# Try to link conftest.$ac_ext, and return whether this succeeded. Assumes
# that executables *can* be run.
-ac_fn_c_try_run ()
+ac_fn_cxx_try_run ()
{
as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
if { { ac_try="$ac_link"
@@ -1672,13 +1633,13 @@ fi
eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
as_fn_set_status $ac_retval
-} # ac_fn_c_try_run
+} # ac_fn_cxx_try_run
-# ac_fn_c_check_header_compile LINENO HEADER VAR INCLUDES
-# -------------------------------------------------------
+# ac_fn_cxx_check_header_compile LINENO HEADER VAR INCLUDES
+# ---------------------------------------------------------
# Tests whether HEADER exists and can be compiled using the include files in
# INCLUDES, setting the cache variable VAR accordingly.
-ac_fn_c_check_header_compile ()
+ac_fn_cxx_check_header_compile ()
{
as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
@@ -1691,7 +1652,7 @@ else
$4
#include <$2>
_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"; then :
eval "$3=yes"
else
eval "$3=no"
@@ -1703,12 +1664,12 @@ eval ac_res=\$$3
$as_echo "$ac_res" >&6; }
eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
-} # ac_fn_c_check_header_compile
+} # ac_fn_cxx_check_header_compile
-# ac_fn_c_try_link LINENO
-# -----------------------
+# ac_fn_cxx_try_link LINENO
+# -------------------------
# Try to link conftest.$ac_ext, and return whether this succeeded.
-ac_fn_c_try_link ()
+ac_fn_cxx_try_link ()
{
as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
rm -f conftest.$ac_objext conftest$ac_exeext
@@ -1728,7 +1689,7 @@ $as_echo "$ac_try_echo"; } >&5
fi
$as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
test $ac_status = 0; } && {
- test -z "$ac_c_werror_flag" ||
+ test -z "$ac_cxx_werror_flag" ||
test ! -s conftest.err
} && test -s conftest$ac_exeext && {
test "$cross_compiling" = yes ||
@@ -1749,7 +1710,7 @@ fi
eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
as_fn_set_status $ac_retval
-} # ac_fn_c_try_link
+} # ac_fn_cxx_try_link
cat >config.log <<_ACEOF
This file contains any messages produced by compilers while
running configure, to aid debugging if configure makes a mistake.
@@ -2955,6 +2916,13 @@ done
test -n "$AUTOHEADER" || AUTOHEADER="$MISSING autoheader"
+ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build C++ tools" >&5
$as_echo_n "checking whether to build C++ tools... " >&6; }
# Check whether --enable-c++-tools was given.
@@ -2989,556 +2957,69 @@ $as_echo "$maintainer_mode" >&6; }
test "$maintainer_mode" = yes && MAINTAINER=yes
-# Check whether --enable-default-pie was given.
-# Check whether --enable-default-pie was given.
-if test "${enable_default_pie+set}" = set; then :
- enableval=$enable_default_pie; PIEFLAG=-fPIE
+# Check whether --enable-checking was given.
+if test "${enable_checking+set}" = set; then :
+ enableval=$enable_checking; ac_checking_flags="${enableval}"
else
- PIEFLAG=
-fi
-
-
-# Check if O_CLOEXEC is defined by fcntl
-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
-if test -n "$ac_tool_prefix"; then
- # Extract the first word of "${ac_tool_prefix}gcc", so it can be a program name with args.
-set dummy ${ac_tool_prefix}gcc; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_CC+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- if test -n "$CC"; then
- ac_cv_prog_CC="$CC" # Let the user override the test.
+# Determine the default checks.
+if test x$is_release = x ; then
+ ac_checking_flags=yes
else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
- ac_cv_prog_CC="${ac_tool_prefix}gcc"
- $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
- done
-IFS=$as_save_IFS
-
+ ac_checking_flags=release
fi
fi
-CC=$ac_cv_prog_CC
-if test -n "$CC"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
-$as_echo "$CC" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-fi
-if test -z "$ac_cv_prog_CC"; then
- ac_ct_CC=$CC
- # Extract the first word of "gcc", so it can be a program name with args.
-set dummy gcc; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_ac_ct_CC+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- if test -n "$ac_ct_CC"; then
- ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
+IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
+for check in release $ac_checking_flags
do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
- ac_cv_prog_ac_ct_CC="gcc"
- $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
- done
-IFS=$as_save_IFS
-
-fi
-fi
-ac_ct_CC=$ac_cv_prog_ac_ct_CC
-if test -n "$ac_ct_CC"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
-$as_echo "$ac_ct_CC" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
- if test "x$ac_ct_CC" = x; then
- CC=""
- else
- case $cross_compiling:$ac_tool_warned in
-yes:)
-{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
-ac_tool_warned=yes ;;
-esac
- CC=$ac_ct_CC
- fi
-else
- CC="$ac_cv_prog_CC"
-fi
-
-if test -z "$CC"; then
- if test -n "$ac_tool_prefix"; then
- # Extract the first word of "${ac_tool_prefix}cc", so it can be a program name with args.
-set dummy ${ac_tool_prefix}cc; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_CC+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- if test -n "$CC"; then
- ac_cv_prog_CC="$CC" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
- ac_cv_prog_CC="${ac_tool_prefix}cc"
- $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
- done
-IFS=$as_save_IFS
-
-fi
-fi
-CC=$ac_cv_prog_CC
-if test -n "$CC"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
-$as_echo "$CC" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-
- fi
-fi
-if test -z "$CC"; then
- # Extract the first word of "cc", so it can be a program name with args.
-set dummy cc; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_CC+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- if test -n "$CC"; then
- ac_cv_prog_CC="$CC" # Let the user override the test.
-else
- ac_prog_rejected=no
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
- if test "$as_dir/$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then
- ac_prog_rejected=yes
- continue
- fi
- ac_cv_prog_CC="cc"
- $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
- done
-IFS=$as_save_IFS
-
-if test $ac_prog_rejected = yes; then
- # We found a bogon in the path, so make sure we never use it.
- set dummy $ac_cv_prog_CC
- shift
- if test $# != 0; then
- # We chose a different compiler from the bogus one.
- # However, it has the same basename, so the bogon will be chosen
- # first if we set CC to just the basename; use the full file name.
- shift
- ac_cv_prog_CC="$as_dir/$ac_word${1+' '}$@"
- fi
-fi
-fi
-fi
-CC=$ac_cv_prog_CC
-if test -n "$CC"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
-$as_echo "$CC" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-
-fi
-if test -z "$CC"; then
- if test -n "$ac_tool_prefix"; then
- for ac_prog in cl.exe
- do
- # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
-set dummy $ac_tool_prefix$ac_prog; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_CC+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- if test -n "$CC"; then
- ac_cv_prog_CC="$CC" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
- ac_cv_prog_CC="$ac_tool_prefix$ac_prog"
- $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
+ case $check in
+ # these set all the flags to specific states
+ yes|all) ac_checking=1 ; ac_assert_checking=1 ; ac_valgrind_checking= ;;
+ no|none) ac_checking= ; ac_assert_checking= ; ac_valgrind_checking= ;;
+ release) ac_checking= ; ac_assert_checking=1 ; ac_valgrind_checking= ;;
+ # these enable particular checks
+ assert) ac_assert_checking=1 ;;
+ misc) ac_checking=1 ;;
+ valgrind) ac_valgrind_checking=1 ;;
+ # accept
+ *) ;;
+ esac
done
- done
-IFS=$as_save_IFS
+IFS="$ac_save_IFS"
-fi
-fi
-CC=$ac_cv_prog_CC
-if test -n "$CC"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
-$as_echo "$CC" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
+if test x$ac_checking != x ; then
+$as_echo "#define CHECKING_P 1" >>confdefs.h
- test -n "$CC" && break
- done
-fi
-if test -z "$CC"; then
- ac_ct_CC=$CC
- for ac_prog in cl.exe
-do
- # Extract the first word of "$ac_prog", so it can be a program name with args.
-set dummy $ac_prog; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_ac_ct_CC+:} false; then :
- $as_echo_n "(cached) " >&6
else
- if test -n "$ac_ct_CC"; then
- ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
- ac_cv_prog_ac_ct_CC="$ac_prog"
- $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
- done
-IFS=$as_save_IFS
+ $as_echo "#define CHECKING_P 0" >>confdefs.h
-fi
-fi
-ac_ct_CC=$ac_cv_prog_ac_ct_CC
-if test -n "$ac_ct_CC"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
-$as_echo "$ac_ct_CC" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
fi
+if test x$ac_assert_checking != x ; then
- test -n "$ac_ct_CC" && break
-done
-
- if test "x$ac_ct_CC" = x; then
- CC=""
- else
- case $cross_compiling:$ac_tool_warned in
-yes:)
-{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
-ac_tool_warned=yes ;;
-esac
- CC=$ac_ct_CC
- fi
-fi
+$as_echo "#define ENABLE_ASSERT_CHECKING 1" >>confdefs.h
fi
+if test x$ac_valgrind_checking != x ; then
-test -z "$CC" && { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-as_fn_error $? "no acceptable C compiler found in \$PATH
-See \`config.log' for more details" "$LINENO" 5; }
+$as_echo "#define ENABLE_VALGRIND_CHECKING 1" >>confdefs.h
-# Provide some information about the compiler.
-$as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler version" >&5
-set X $ac_compile
-ac_compiler=$2
-for ac_option in --version -v -V -qversion; do
- { { ac_try="$ac_compiler $ac_option >&5"
-case "(($ac_try" in
- *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
- *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-$as_echo "$ac_try_echo"; } >&5
- (eval "$ac_compiler $ac_option >&5") 2>conftest.err
- ac_status=$?
- if test -s conftest.err; then
- sed '10a\
-... rest of stderr output deleted ...
- 10q' conftest.err >conftest.er1
- cat conftest.er1 >&5
- fi
- rm -f conftest.er1 conftest.err
- $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
- test $ac_status = 0; }
-done
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are using the GNU C compiler" >&5
-$as_echo_n "checking whether we are using the GNU C compiler... " >&6; }
-if ${ac_cv_c_compiler_gnu+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h. */
-
-int
-main ()
-{
-#ifndef __GNUC__
- choke me
-#endif
-
- ;
- return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
- ac_compiler_gnu=yes
-else
- ac_compiler_gnu=no
fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-ac_cv_c_compiler_gnu=$ac_compiler_gnu
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_compiler_gnu" >&5
-$as_echo "$ac_cv_c_compiler_gnu" >&6; }
-if test $ac_compiler_gnu = yes; then
- GCC=yes
-else
- GCC=
-fi
-ac_test_CFLAGS=${CFLAGS+set}
-ac_save_CFLAGS=$CFLAGS
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC accepts -g" >&5
-$as_echo_n "checking whether $CC accepts -g... " >&6; }
-if ${ac_cv_prog_cc_g+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- ac_save_c_werror_flag=$ac_c_werror_flag
- ac_c_werror_flag=yes
- ac_cv_prog_cc_g=no
- CFLAGS="-g"
- cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h. */
-
-int
-main ()
-{
-
- ;
- return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
- ac_cv_prog_cc_g=yes
-else
- CFLAGS=""
- cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h. */
-
-int
-main ()
-{
-
- ;
- return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-
-else
- ac_c_werror_flag=$ac_save_c_werror_flag
- CFLAGS="-g"
- cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h. */
-
-int
-main ()
-{
-
- ;
- return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
- ac_cv_prog_cc_g=yes
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
- ac_c_werror_flag=$ac_save_c_werror_flag
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_g" >&5
-$as_echo "$ac_cv_prog_cc_g" >&6; }
-if test "$ac_test_CFLAGS" = set; then
- CFLAGS=$ac_save_CFLAGS
-elif test $ac_cv_prog_cc_g = yes; then
- if test "$GCC" = yes; then
- CFLAGS="-g -O2"
- else
- CFLAGS="-g"
- fi
-else
- if test "$GCC" = yes; then
- CFLAGS="-O2"
- else
- CFLAGS=
- fi
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $CC option to accept ISO C89" >&5
-$as_echo_n "checking for $CC option to accept ISO C89... " >&6; }
-if ${ac_cv_prog_cc_c89+:} false; then :
- $as_echo_n "(cached) " >&6
+# Check whether --enable-default-pie was given.
+# Check whether --enable-default-pie was given.
+if test "${enable_default_pie+set}" = set; then :
+ enableval=$enable_default_pie; PIEFLAG=-fPIE
else
- ac_cv_prog_cc_c89=no
-ac_save_CC=$CC
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h. */
-#include <stdarg.h>
-#include <stdio.h>
-struct stat;
-/* Most of the following tests are stolen from RCS 5.7's src/conf.sh. */
-struct buf { int x; };
-FILE * (*rcsopen) (struct buf *, struct stat *, int);
-static char *e (p, i)
- char **p;
- int i;
-{
- return p[i];
-}
-static char *f (char * (*g) (char **, int), char **p, ...)
-{
- char *s;
- va_list v;
- va_start (v,p);
- s = g (p, va_arg (v,int));
- va_end (v);
- return s;
-}
-
-/* OSF 4.0 Compaq cc is some sort of almost-ANSI by default. It has
- function prototypes and stuff, but not '\xHH' hex character constants.
- These don't provoke an error unfortunately, instead are silently treated
- as 'x'. The following induces an error, until -std is added to get
- proper ANSI mode. Curiously '\x00'!='x' always comes out true, for an
- array size at least. It's necessary to write '\x00'==0 to get something
- that's true only with -std. */
-int osf4_cc_array ['\x00' == 0 ? 1 : -1];
-
-/* IBM C 6 for AIX is almost-ANSI by default, but it replaces macro parameters
- inside strings and character constants. */
-#define FOO(x) 'x'
-int xlc6_cc_array[FOO(a) == 'x' ? 1 : -1];
-
-int test (int i, double x);
-struct s1 {int (*f) (int a);};
-struct s2 {int (*f) (double a);};
-int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int);
-int argc;
-char **argv;
-int
-main ()
-{
-return f (e, argv, 0) != argv[0] || f (e, argv, 1) != argv[1];
- ;
- return 0;
-}
-_ACEOF
-for ac_arg in '' -qlanglvl=extc89 -qlanglvl=ansi -std \
- -Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
-do
- CC="$ac_save_CC $ac_arg"
- if ac_fn_c_try_compile "$LINENO"; then :
- ac_cv_prog_cc_c89=$ac_arg
-fi
-rm -f core conftest.err conftest.$ac_objext
- test "x$ac_cv_prog_cc_c89" != "xno" && break
-done
-rm -f conftest.$ac_ext
-CC=$ac_save_CC
-
+ PIEFLAG=
fi
-# AC_CACHE_VAL
-case "x$ac_cv_prog_cc_c89" in
- x)
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
-$as_echo "none needed" >&6; } ;;
- xno)
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
-$as_echo "unsupported" >&6; } ;;
- *)
- CC="$CC $ac_cv_prog_cc_c89"
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c89" >&5
-$as_echo "$ac_cv_prog_cc_c89" >&6; } ;;
-esac
-if test "x$ac_cv_prog_cc_c89" != xno; then :
-fi
-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
+# Check if O_CLOEXEC is defined by fcntl
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for O_CLOEXEC" >&5
$as_echo_n "checking for O_CLOEXEC... " >&6; }
@@ -3559,7 +3040,7 @@ return open ("/dev/null", O_RDONLY | O_CLOEXEC);
return 0;
}
_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"; then :
ac_cv_o_cloexec=yes
else
ac_cv_o_cloexec=no
@@ -3574,26 +3055,22 @@ $as_echo "#define HOST_HAS_O_CLOEXEC 1" >>confdefs.h
fi
-ac_ext=c
-ac_cpp='$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
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to run the C preprocessor" >&5
-$as_echo_n "checking how to run the C preprocessor... " >&6; }
-# On Suns, sometimes $CPP names a directory.
-if test -n "$CPP" && test -d "$CPP"; then
- CPP=
-fi
-if test -z "$CPP"; then
- if ${ac_cv_prog_CPP+:} false; then :
+ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to run the C++ preprocessor" >&5
+$as_echo_n "checking how to run the C++ preprocessor... " >&6; }
+if test -z "$CXXCPP"; then
+ if ${ac_cv_prog_CXXCPP+:} false; then :
$as_echo_n "(cached) " >&6
else
- # Double quotes because CPP needs to be expanded
- for CPP in "$CC -E" "$CC -E -traditional-cpp" "/lib/cpp"
+ # Double quotes because CXXCPP needs to be expanded
+ for CXXCPP in "$CXX -E" "/lib/cpp"
do
ac_preproc_ok=false
-for ac_c_preproc_warn_flag in '' yes
+for ac_cxx_preproc_warn_flag in '' yes
do
# Use a header file that comes with gcc, so configuring glibc
# with a fresh cross-compiler works.
@@ -3610,7 +3087,7 @@ do
#endif
Syntax error
_ACEOF
-if ac_fn_c_try_cpp "$LINENO"; then :
+if ac_fn_cxx_try_cpp "$LINENO"; then :
else
# Broken: fails on valid input.
@@ -3624,7 +3101,7 @@ rm -f conftest.err conftest.i conftest.$ac_ext
/* end confdefs.h. */
#include <ac_nonexistent.h>
_ACEOF
-if ac_fn_c_try_cpp "$LINENO"; then :
+if ac_fn_cxx_try_cpp "$LINENO"; then :
# Broken: success on invalid input.
continue
else
@@ -3642,17 +3119,17 @@ if $ac_preproc_ok; then :
fi
done
- ac_cv_prog_CPP=$CPP
+ ac_cv_prog_CXXCPP=$CXXCPP
fi
- CPP=$ac_cv_prog_CPP
+ CXXCPP=$ac_cv_prog_CXXCPP
else
- ac_cv_prog_CPP=$CPP
+ ac_cv_prog_CXXCPP=$CXXCPP
fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $CPP" >&5
-$as_echo "$CPP" >&6; }
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $CXXCPP" >&5
+$as_echo "$CXXCPP" >&6; }
ac_preproc_ok=false
-for ac_c_preproc_warn_flag in '' yes
+for ac_cxx_preproc_warn_flag in '' yes
do
# Use a header file that comes with gcc, so configuring glibc
# with a fresh cross-compiler works.
@@ -3669,7 +3146,7 @@ do
#endif
Syntax error
_ACEOF
-if ac_fn_c_try_cpp "$LINENO"; then :
+if ac_fn_cxx_try_cpp "$LINENO"; then :
else
# Broken: fails on valid input.
@@ -3683,7 +3160,7 @@ rm -f conftest.err conftest.i conftest.$ac_ext
/* end confdefs.h. */
#include <ac_nonexistent.h>
_ACEOF
-if ac_fn_c_try_cpp "$LINENO"; then :
+if ac_fn_cxx_try_cpp "$LINENO"; then :
# Broken: success on invalid input.
continue
else
@@ -3701,15 +3178,15 @@ if $ac_preproc_ok; then :
else
{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-as_fn_error $? "C preprocessor \"$CPP\" fails sanity check
+as_fn_error $? "C++ preprocessor \"$CXXCPP\" fails sanity check
See \`config.log' for more details" "$LINENO" 5; }
fi
-ac_ext=c
-ac_cpp='$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
+ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for grep that handles long lines and -e" >&5
@@ -3862,7 +3339,7 @@ main ()
return 0;
}
_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"; then :
ac_cv_header_stdc=yes
else
ac_cv_header_stdc=no
@@ -3935,7 +3412,7 @@ main ()
return 0;
}
_ACEOF
-if ac_fn_c_try_run "$LINENO"; then :
+if ac_fn_cxx_try_run "$LINENO"; then :
else
ac_cv_header_stdc=no
@@ -3959,7 +3436,7 @@ for ac_header in sys/types.h sys/stat.h stdlib.h string.h memory.h strings.h \
inttypes.h stdint.h unistd.h
do :
as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
-ac_fn_c_check_header_compile "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default
+ac_fn_cxx_check_header_compile "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default
"
if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
cat >>confdefs.h <<_ACEOF
@@ -3973,7 +3450,7 @@ done
for ac_header in sys/mman.h
do :
- ac_fn_c_check_header_mongrel "$LINENO" "sys/mman.h" "ac_cv_header_sys_mman_h" "$ac_includes_default"
+ ac_fn_cxx_check_header_mongrel "$LINENO" "sys/mman.h" "ac_cv_header_sys_mman_h" "$ac_includes_default"
if test "x$ac_cv_header_sys_mman_h" = xyes; then :
cat >>confdefs.h <<_ACEOF
#define HAVE_SYS_MMAN_H 1
@@ -4016,7 +3493,7 @@ connect (fd, (sockaddr *)&un, sizeof (un));
return 0;
}
_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"; then :
ac_cv_af_unix=yes
else
ac_cv_af_unix=no
@@ -4070,7 +3547,7 @@ connect (fd, (sockaddr *)&in6, sizeof (in6));
return 0;
}
_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"; then :
ac_cv_af_inet6=yes
else
ac_cv_af_inet6=no
@@ -4111,7 +3588,7 @@ epoll_pwait (fd, 0, 0, -1, 0);
return 0;
}
_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"; then :
ac_cv_epoll=yes
else
ac_cv_epoll=no
@@ -4147,7 +3624,7 @@ pselect (0, 0, 0, 0, 0, 0);
return 0;
}
_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"; then :
ac_cv_pselect=yes
else
ac_cv_pselect=no
@@ -4184,7 +3661,7 @@ select (0, 0, 0, 0, 0);
return 0;
}
_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"; then :
ac_cv_select=yes
else
ac_cv_select=no
@@ -4220,7 +3697,7 @@ int err = accept4 (1, 0, 0, SOCK_NONBLOCK);
return 0;
}
_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"; then :
ac_cv_accept4=yes
else
ac_cv_accept4=no
@@ -4259,7 +3736,7 @@ const char *str = inet_ntop (AF_INET6, &in6, buf, sizeof (buf));
return 0;
}
_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"; then :
ac_cv_inet_ntop=yes
else
ac_cv_inet_ntop=no
@@ -4325,7 +3802,7 @@ for ac_lib in '' nsl; do
ac_res=-l$ac_lib
LIBS="-l$ac_lib $ac_func_search_save_LIBS"
fi
- if ac_fn_c_try_link "$LINENO"; then :
+ if ac_fn_cxx_try_link "$LINENO"; then :
ac_cv_search_gethostbyname=$ac_res
fi
rm -f core conftest.err conftest.$ac_objext \
@@ -4381,7 +3858,7 @@ for ac_lib in '' socket; do
ac_res=-l$ac_lib
LIBS="-l$ac_lib $ac_func_search_save_LIBS"
fi
- if ac_fn_c_try_link "$LINENO"; then :
+ if ac_fn_cxx_try_link "$LINENO"; then :
ac_cv_search_socket=$ac_res
fi
rm -f core conftest.err conftest.$ac_objext \
@@ -4431,7 +3908,7 @@ return socket ();
return 0;
}
_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_cxx_try_link "$LINENO"; then :
ac_cv_lib_socket_socket=yes
else
ac_cv_lib_socket_socket=no
diff --git a/c++tools/configure.ac b/c++tools/configure.ac
index 70fcb641db9..751ec02b72d 100644
--- a/c++tools/configure.ac
+++ b/c++tools/configure.ac
@@ -41,6 +41,8 @@ MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
AC_CHECK_PROGS([AUTOCONF], [autoconf], [$MISSING autoconf])
AC_CHECK_PROGS([AUTOHEADER], [autoheader], [$MISSING autoheader])
+AC_LANG(C++)
+
dnl Enabled by default
AC_MSG_CHECKING([whether to build C++ tools])
AC_ARG_ENABLE(c++-tools,
@@ -67,6 +69,55 @@ AC_MSG_RESULT([$maintainer_mode])
test "$maintainer_mode" = yes && MAINTAINER=yes
AC_SUBST(MAINTAINER)
+AC_ARG_ENABLE(checking,
+[AS_HELP_STRING([[--enable-checking[=LIST]]],
+ [enable expensive run-time checks. With LIST,
+ enable only specific categories of checks.
+ Categories are: yes,no,all,none,release.
+ Flags are: misc,valgrind or other strings])],
+[ac_checking_flags="${enableval}"],[
+# Determine the default checks.
+if test x$is_release = x ; then
+ ac_checking_flags=yes
+else
+ ac_checking_flags=release
+fi])
+IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
+for check in release $ac_checking_flags
+do
+ case $check in
+ # these set all the flags to specific states
+ yes|all) ac_checking=1 ; ac_assert_checking=1 ; ac_valgrind_checking= ;;
+ no|none) ac_checking= ; ac_assert_checking= ; ac_valgrind_checking= ;;
+ release) ac_checking= ; ac_assert_checking=1 ; ac_valgrind_checking= ;;
+ # these enable particular checks
+ assert) ac_assert_checking=1 ;;
+ misc) ac_checking=1 ;;
+ valgrind) ac_valgrind_checking=1 ;;
+ # accept
+ *) ;;
+ esac
+done
+IFS="$ac_save_IFS"
+
+if test x$ac_checking != x ; then
+ AC_DEFINE(CHECKING_P, 1,
+[Define to 1 if you want more run-time sanity checks.])
+else
+ AC_DEFINE(CHECKING_P, 0)
+fi
+
+if test x$ac_assert_checking != x ; then
+ AC_DEFINE(ENABLE_ASSERT_CHECKING, 1,
+[Define if you want assertions enabled. This is a cheap check.])
+fi
+
+if test x$ac_valgrind_checking != x ; then
+ AC_DEFINE(ENABLE_VALGRIND_CHECKING, 1,
+[Define if you want to workaround valgrind (a memory checker) warnings about
+ possible memory leaks because of libcpp use of interior pointers.])
+fi
+
# Check whether --enable-default-pie was given.
AC_ARG_ENABLE(default-pie,
[AS_HELP_STRING([--enable-default-pie],
diff --git a/c++tools/server.cc b/c++tools/server.cc
index fae3e78dc5d..bac11038679 100644
--- a/c++tools/server.cc
+++ b/c++tools/server.cc
@@ -61,6 +61,10 @@ along with GCC; see the file COPYING3. If not see
# define gai_strerror(X) ""
#endif
+#ifndef AI_NUMERICSERV
+#define AI_NUMERICSERV 0
+#endif
+
#include <getopt.h>
// Select or epoll
@@ -92,6 +96,35 @@ along with GCC; see the file COPYING3. If not see
#define DIR_SEPARATOR '/'
#endif
+/* Imported from libcpp/system.h
+ Use gcc_assert(EXPR) to test invariants. */
+#if ENABLE_ASSERT_CHECKING
+#define gcc_assert(EXPR) \
+ ((void)(!(EXPR) ? fancy_abort (__FILE__, __LINE__, __FUNCTION__), 0 : 0))
+#elif (GCC_VERSION >= 4005)
+#define gcc_assert(EXPR) \
+ ((void)(__builtin_expect (!(EXPR), 0) ? __builtin_unreachable (), 0 : 0))
+#else
+/* Include EXPR, so that unused variable warnings do not occur. */
+#define gcc_assert(EXPR) ((void)(0 && (EXPR)))
+#endif
+
+#if CHECKING_P
+#define gcc_checking_assert(EXPR) gcc_assert (EXPR)
+#else
+/* N.B.: in release build EXPR is not evaluated. */
+#define gcc_checking_assert(EXPR) ((void)(0 && (EXPR)))
+#endif
+
+/* Use gcc_unreachable() to mark unreachable locations (like an
+ unreachable default case of a switch. Do not use gcc_assert(0). */
+#if (GCC_VERSION >= 4005) && !ENABLE_ASSERT_CHECKING
+#define gcc_unreachable() __builtin_unreachable ()
+#else
+#define gcc_unreachable() (fancy_abort (__FILE__, __LINE__, __FUNCTION__))
+#endif
+
+
#if NETWORKING
struct netmask {
in6_addr addr;
@@ -202,11 +235,13 @@ internal_error (const char *fmt, ...)
/* Hooked to from gcc_assert & gcc_unreachable. */
+#if ENABLE_ASSERT_CHECKING
void ATTRIBUTE_NORETURN ATTRIBUTE_COLD
fancy_abort (const char *file, int line, const char *func)
{
internal_error ("in %s, at %s:%d", func, trim_src_file (file), line);
}
+#endif
/* Exploded on a signal. */
--
2.24.3 (Apple Git-128)
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