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Commit ff771de3 by Jason Merrill Committed by Jason Merrill
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re PR bootstrap/66304 (Can't bootstrap on x86_64-linux-gnu with gcc 4.3.4) 

	PR bootstrap/66304
config/
	* warnings.m4 (ACX_PROG_CXX_WARNING_OPTS)
	(ACX_PROG_CXX_WARNINGS_ARE_ERRORS)
	(ACX_PROG_CXX_WARNING_ALMOST_PEDANTIC): New.
	(ACX_PROG_CC_WARNING_OPTS, ACX_PROG_CC_WARNING_ALMOST_PEDANTIC)
	(ACX_PROG_CC_WARNINGS_ARE_ERRORS): Push into C language context.
gcc/
	* configure.ac: Use ACX_PROG_CXX_WARNING_OPTS,
	ACX_PROG_CXX_WARNING_ALMOST_PEDANTIC, and
	ACX_PROG_CXX_WARNINGS_ARE_ERRORS.
	* configure: Regenerate.

From-SVN: r223763
parent 650a202b
Showing with 254 additions and 32 deletions
config/ChangeLog
2015-05-27 Jason Merrill <jason@redhat.com>
PR bootstrap/66304
* warnings.m4 (ACX_PROG_CXX_WARNING_OPTS)
(ACX_PROG_CXX_WARNINGS_ARE_ERRORS)
(ACX_PROG_CXX_WARNING_ALMOST_PEDANTIC): New.
(ACX_PROG_CC_WARNING_OPTS, ACX_PROG_CC_WARNING_ALMOST_PEDANTIC)
(ACX_PROG_CC_WARNINGS_ARE_ERRORS): Push into C language context.
2015-05-13 Eric Botcazou <ebotcazou@adacore.com>
* sjlj.m4: New file.
......
config/warnings.m4
......@@ -23,6 +23,7 @@
# compiler accepts.
AC_DEFUN([ACX_PROG_CC_WARNING_OPTS],
[AC_REQUIRE([AC_PROG_CC])dnl
AC_LANG_PUSH(C)
m4_pushdef([acx_Var], [m4_default([$2], [WARN_CFLAGS])])dnl
AC_SUBST(acx_Var)dnl
m4_expand_once([acx_Var=
......@@ -48,6 +49,7 @@ for real_option in $1; do
done
CFLAGS="$save_CFLAGS"
m4_popdef([acx_Var])dnl
AC_LANG_POP(C)
])# ACX_PROG_CC_WARNING_OPTS
# ACX_PROG_CC_WARNING_ALMOST_PEDANTIC(WARNINGS, [VARIABLE = WARN_PEDANTIC])
......@@ -55,6 +57,7 @@ m4_popdef([acx_Var])dnl
# and accepts all of those options simultaneously, otherwise to nothing.
AC_DEFUN([ACX_PROG_CC_WARNING_ALMOST_PEDANTIC],
[AC_REQUIRE([AC_PROG_CC])dnl
AC_LANG_PUSH(C)
m4_pushdef([acx_Var], [m4_default([$2], [WARN_PEDANTIC])])dnl
AC_SUBST(acx_Var)dnl
m4_expand_once([acx_Var=
......@@ -77,6 +80,7 @@ AS_IF([test AS_VAR_GET(acx_Pedantic) = yes],
AS_VAR_POPDEF([acx_Pedantic])dnl
m4_popdef([acx_Woptions])dnl
m4_popdef([acx_Var])dnl
AC_LANG_POP(C)
])# ACX_PROG_CC_WARNING_ALMOST_PEDANTIC
# ACX_PROG_CC_WARNINGS_ARE_ERRORS([x.y.z], [VARIABLE = WERROR])
......@@ -88,6 +92,7 @@ m4_popdef([acx_Var])dnl
# appeared on the configure command line.
AC_DEFUN([ACX_PROG_CC_WARNINGS_ARE_ERRORS],
[AC_REQUIRE([AC_PROG_CC])dnl
AC_LANG_PUSH(C)
m4_pushdef([acx_Var], [m4_default([$2], [WERROR])])dnl
AC_SUBST(acx_Var)dnl
m4_expand_once([acx_Var=
......@@ -114,4 +119,109 @@ AS_IF([test $enable_werror_always = yes],
[acx_Var="$acx_Var${acx_Var:+ }-Werror"])
AS_VAR_POPDEF([acx_GCCvers])])
m4_popdef([acx_Var])dnl
AC_LANG_POP(C)
])# ACX_PROG_CC_WARNINGS_ARE_ERRORS
# ACX_PROG_CXX_WARNING_OPTS(WARNINGS, [VARIABLE = WARN_CFLAGS)
# Sets @VARIABLE@ to the subset of the given options which the
# compiler accepts.
AC_DEFUN([ACX_PROG_CXX_WARNING_OPTS],
[AC_REQUIRE([AC_PROG_CXX])dnl
AC_LANG_PUSH(C++)
m4_pushdef([acx_Var], [m4_default([$2], [WARN_CXXFLAGS])])dnl
AC_SUBST(acx_Var)dnl
m4_expand_once([acx_Var=
],m4_quote(acx_Var=))dnl
save_CXXFLAGS="$CXXFLAGS"
for real_option in $1; do
# Do the check with the no- prefix removed since gcc silently
# accepts any -Wno-* option on purpose
case $real_option in
-Wno-*) option=-W`expr x$real_option : 'x-Wno-\(.*\)'` ;;
*) option=$real_option ;;
esac
AS_VAR_PUSHDEF([acx_Woption], [acx_cv_prog_cc_warning_$option])
AC_CACHE_CHECK([whether $CXX supports $option], acx_Woption,
[CXXFLAGS="$option"
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],[])],
[AS_VAR_SET(acx_Woption, yes)],
[AS_VAR_SET(acx_Woption, no)])
])
AS_IF([test AS_VAR_GET(acx_Woption) = yes],
[acx_Var="$acx_Var${acx_Var:+ }$real_option"])
AS_VAR_POPDEF([acx_Woption])dnl
done
CXXFLAGS="$save_CXXFLAGS"
m4_popdef([acx_Var])dnl
AC_LANG_POP(C++)
])# ACX_PROG_CXX_WARNING_OPTS
# ACX_PROG_CXX_WARNING_ALMOST_PEDANTIC(WARNINGS, [VARIABLE = WARN_PEDANTIC])
# Append to VARIABLE "-pedantic" + the argument, if the compiler is G++
# and accepts all of those options simultaneously, otherwise to nothing.
AC_DEFUN([ACX_PROG_CXX_WARNING_ALMOST_PEDANTIC],
[AC_REQUIRE([AC_PROG_CXX])dnl
AC_LANG_PUSH(C++)
m4_pushdef([acx_Var], [m4_default([$2], [WARN_PEDANTIC])])dnl
AC_SUBST(acx_Var)dnl
m4_expand_once([acx_Var=
],m4_quote(acx_Var=))dnl
# Do the check with the no- prefix removed from the warning options
# since gcc silently accepts any -Wno-* option on purpose
m4_pushdef([acx_Woptions], [m4_bpatsubst([$1], [-Wno-], [-W])])dnl
AS_VAR_PUSHDEF([acx_Pedantic], [acx_cv_prog_cc_pedantic_]acx_Woptions)dnl
AS_IF([test "$GXX" = yes],
[AC_CACHE_CHECK([whether $CXX supports -pedantic ]acx_Woptions, acx_Pedantic,
[save_CXXFLAGS="$CXXFLAGS"
CXXFLAGS="-pedantic acx_Woptions"
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],[])],
[AS_VAR_SET(acx_Pedantic, yes)],
[AS_VAR_SET(acx_Pedantic, no)])
CXXFLAGS="$save_CXXFLAGS"])
AS_IF([test AS_VAR_GET(acx_Pedantic) = yes],
[acx_Var="$acx_Var${acx_Var:+ }-pedantic $1"])
])
AS_VAR_POPDEF([acx_Pedantic])dnl
m4_popdef([acx_Woptions])dnl
m4_popdef([acx_Var])dnl
AC_LANG_POP(C++)
])# ACX_PROG_CXX_WARNING_ALMOST_PEDANTIC
# ACX_PROG_CXX_WARNINGS_ARE_ERRORS([x.y.z], [VARIABLE = WERROR])
# sets @VARIABLE@ to "-Werror" if the compiler is G++ >=x.y.z, or if
# --enable-werror-always was given on the command line, otherwise
# to nothing.
# If the argument is the word "manual" instead of a version number,
# then @VARIABLE@ will be set to -Werror only if --enable-werror-always
# appeared on the configure command line.
AC_DEFUN([ACX_PROG_CXX_WARNINGS_ARE_ERRORS],
[AC_REQUIRE([AC_PROG_CXX])dnl
AC_LANG_PUSH(C++)
m4_pushdef([acx_Var], [m4_default([$2], [WERROR])])dnl
AC_SUBST(acx_Var)dnl
m4_expand_once([acx_Var=
],m4_quote(acx_Var=))dnl
AC_ARG_ENABLE(werror-always,
AS_HELP_STRING([--enable-werror-always],
[enable -Werror despite compiler version]),
[], [enable_werror_always=no])
AS_IF([test $enable_werror_always = yes],
[acx_Var="$acx_Var${acx_Var:+ }-Werror"])
m4_if($1, [manual],,
[AS_VAR_PUSHDEF([acx_GXXvers], [acx_cv_prog_cxx_gxx_$1_or_newer])dnl
AC_CACHE_CHECK([whether $CXX is G++ >=$1], acx_GXXvers,
[set fnord `echo $1 | tr '.' ' '`
shift
AC_PREPROC_IFELSE(
[#if __GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__ \
< [$]1 * 10000 + [$]2 * 100 + [$]3
#error insufficient
#endif],
[AS_VAR_SET(acx_GXXvers, yes)],
[AS_VAR_SET(acx_GXXvers, no)])])
AS_IF([test AS_VAR_GET(acx_GXXvers) = yes],
[acx_Var="$acx_Var${acx_Var:+ }-Werror"])
AS_VAR_POPDEF([acx_GXXvers])])
m4_popdef([acx_Var])dnl
AC_LANG_POP(C++)
])# ACX_PROG_CXX_WARNINGS_ARE_ERRORS
gcc/ChangeLog
2015-05-27 Jason Merrill <jason@redhat.com>
PR bootstrap/66304
* configure.ac: Use ACX_PROG_CXX_WARNING_OPTS,
ACX_PROG_CXX_WARNING_ALMOST_PEDANTIC, and
ACX_PROG_CXX_WARNINGS_ARE_ERRORS.
2015-05-22 Aditya Kumar <hiraditya@msn.com>
* auto-profile.c (afdo_calculate_branch_prob): Break once has_sample
......
gcc/configure
......@@ -6471,8 +6471,14 @@ if test $enable_build_format_warnings = no; then :
else
wf_opt=
fi
ac_ext=cpp
ac_cpp='$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
loose_warn=
save_CFLAGS="$CFLAGS"
save_CXXFLAGS="$CXXFLAGS"
for real_option in -W -Wall -Wno-narrowing -Wwrite-strings -Wcast-qual $wf_opt; do
# Do the check with the no- prefix removed since gcc silently
# accepts any -Wno-* option on purpose
......@@ -6482,12 +6488,12 @@ for real_option in -W -Wall -Wno-narrowing -Wwrite-strings -Wcast-qual $wf_opt;
esac
as_acx_Woption=`$as_echo "acx_cv_prog_cc_warning_$option" | $as_tr_sh`
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC supports $option" >&5
$as_echo_n "checking whether $CC supports $option... " >&6; }
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CXX supports $option" >&5
$as_echo_n "checking whether $CXX supports $option... " >&6; }
if { as_var=$as_acx_Woption; eval "test \"\${$as_var+set}\" = set"; }; then :
$as_echo_n "(cached) " >&6
else
CFLAGS="$option"
CXXFLAGS="$option"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
......@@ -6514,7 +6520,20 @@ $as_echo "$ac_res" >&6; }
loose_warn="$loose_warn${loose_warn:+ }$real_option"
fi
done
CFLAGS="$save_CFLAGS"
CXXFLAGS="$save_CXXFLAGS"
ac_ext=cpp
ac_cpp='$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
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
c_loose_warn=
save_CFLAGS="$CFLAGS"
......@@ -6544,7 +6563,7 @@ main ()
return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"; then :
if ac_fn_c_try_compile "$LINENO"; then :
eval "$as_acx_Woption=yes"
else
eval "$as_acx_Woption=no"
......@@ -6560,9 +6579,21 @@ $as_echo "$ac_res" >&6; }
fi
done
CFLAGS="$save_CFLAGS"
ac_ext=cpp
ac_cpp='$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
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
strict_warn=
save_CFLAGS="$CFLAGS"
save_CXXFLAGS="$CXXFLAGS"
for real_option in -Wmissing-format-attribute; do
# Do the check with the no- prefix removed since gcc silently
# accepts any -Wno-* option on purpose
......@@ -6572,12 +6603,12 @@ for real_option in -Wmissing-format-attribute; do
esac
as_acx_Woption=`$as_echo "acx_cv_prog_cc_warning_$option" | $as_tr_sh`
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC supports $option" >&5
$as_echo_n "checking whether $CC supports $option... " >&6; }
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CXX supports $option" >&5
$as_echo_n "checking whether $CXX supports $option... " >&6; }
if { as_var=$as_acx_Woption; eval "test \"\${$as_var+set}\" = set"; }; then :
$as_echo_n "(cached) " >&6
else
CFLAGS="$option"
CXXFLAGS="$option"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
......@@ -6604,9 +6635,21 @@ $as_echo "$ac_res" >&6; }
strict_warn="$strict_warn${strict_warn:+ }$real_option"
fi
done
CFLAGS="$save_CFLAGS"
CXXFLAGS="$save_CXXFLAGS"
ac_ext=cpp
ac_cpp='$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
save_CFLAGS="$CFLAGS"
ac_ext=cpp
ac_cpp='$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
save_CXXFLAGS="$CXXFLAGS"
for real_option in -Woverloaded-virtual; do
# Do the check with the no- prefix removed since gcc silently
# accepts any -Wno-* option on purpose
......@@ -6616,12 +6659,12 @@ for real_option in -Woverloaded-virtual; do
esac
as_acx_Woption=`$as_echo "acx_cv_prog_cc_warning_$option" | $as_tr_sh`
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC supports $option" >&5
$as_echo_n "checking whether $CC supports $option... " >&6; }
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CXX supports $option" >&5
$as_echo_n "checking whether $CXX supports $option... " >&6; }
if { as_var=$as_acx_Woption; eval "test \"\${$as_var+set}\" = set"; }; then :
$as_echo_n "(cached) " >&6
else
CFLAGS="$option"
CXXFLAGS="$option"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
......@@ -6648,7 +6691,19 @@ $as_echo "$ac_res" >&6; }
strict_warn="$strict_warn${strict_warn:+ }$real_option"
fi
done
CFLAGS="$save_CFLAGS"
CXXFLAGS="$save_CXXFLAGS"
ac_ext=cpp
ac_cpp='$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
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
c_strict_warn=
save_CFLAGS="$CFLAGS"
......@@ -6678,7 +6733,7 @@ main ()
return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"; then :
if ac_fn_c_try_compile "$LINENO"; then :
eval "$as_acx_Woption=yes"
else
eval "$as_acx_Woption=no"
......@@ -6694,17 +6749,29 @@ $as_echo "$ac_res" >&6; }
fi
done
CFLAGS="$save_CFLAGS"
ac_ext=cpp
ac_cpp='$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
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
# Do the check with the no- prefix removed from the warning options
# since gcc silently accepts any -Wno-* option on purpose
if test "$GCC" = yes; then :
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC supports -pedantic -Wlong-long -Wvariadic-macros -Woverlength-strings" >&5
$as_echo_n "checking whether $CC supports -pedantic -Wlong-long -Wvariadic-macros -Woverlength-strings... " >&6; }
if test "$GXX" = yes; then :
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CXX supports -pedantic -Wlong-long -Wvariadic-macros -Woverlength-strings" >&5
$as_echo_n "checking whether $CXX supports -pedantic -Wlong-long -Wvariadic-macros -Woverlength-strings... " >&6; }
if test "${acx_cv_prog_cc_pedantic__Wlong_long__Wvariadic_macros__Woverlength_strings+set}" = set; then :
$as_echo_n "(cached) " >&6
else
save_CFLAGS="$CFLAGS"
CFLAGS="-pedantic -Wlong-long -Wvariadic-macros -Woverlength-strings"
save_CXXFLAGS="$CXXFLAGS"
CXXFLAGS="-pedantic -Wlong-long -Wvariadic-macros -Woverlength-strings"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
......@@ -6722,7 +6789,7 @@ else
acx_cv_prog_cc_pedantic__Wlong_long__Wvariadic_macros__Woverlength_strings=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
CFLAGS="$save_CFLAGS"
CXXFLAGS="$save_CXXFLAGS"
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $acx_cv_prog_cc_pedantic__Wlong_long__Wvariadic_macros__Woverlength_strings" >&5
$as_echo "$acx_cv_prog_cc_pedantic__Wlong_long__Wvariadic_macros__Woverlength_strings" >&6; }
......@@ -6731,6 +6798,18 @@ if test $acx_cv_prog_cc_pedantic__Wlong_long__Wvariadic_macros__Woverlength_stri
fi
fi
ac_ext=cpp
ac_cpp='$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
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
# Check whether --enable-werror-always was given.
if test "${enable_werror_always+set}" = set; then :
......@@ -6743,6 +6822,12 @@ if test $enable_werror_always = yes; then :
strict_warn="$strict_warn${strict_warn:+ }-Werror"
fi
ac_ext=cpp
ac_cpp='$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
# The above macros do nothing if the compiler is not GCC. However, the
......@@ -6758,6 +6843,12 @@ fi
# Disable exceptions and RTTI if building with g++
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
noexception_flags=
save_CFLAGS="$CFLAGS"
for real_option in -fno-exceptions -fno-rtti -fasynchronous-unwind-tables; do
......@@ -6786,7 +6877,7 @@ main ()
return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"; then :
if ac_fn_c_try_compile "$LINENO"; then :
eval "$as_acx_Woption=yes"
else
eval "$as_acx_Woption=no"
......@@ -6802,6 +6893,12 @@ $as_echo "$ac_res" >&6; }
fi
done
CFLAGS="$save_CFLAGS"
ac_ext=cpp
ac_cpp='$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
# Enable expensive internal checks
......@@ -13885,7 +13982,6 @@ fi
# Check whether --enable-libtool-lock was given.
if test "${enable_libtool_lock+set}" = set; then :
enableval=$enable_libtool_lock;
......@@ -18197,7 +18293,7 @@ else
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
lt_status=$lt_dlunknown
cat > conftest.$ac_ext <<_LT_EOF
#line 18200 "configure"
#line 18296 "configure"
#include "confdefs.h"
#if HAVE_DLFCN_H
......@@ -18303,7 +18399,7 @@ else
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
lt_status=$lt_dlunknown
cat > conftest.$ac_ext <<_LT_EOF
#line 18306 "configure"
#line 18402 "configure"
#include "confdefs.h"
#if HAVE_DLFCN_H
......
gcc/configure.ac
......@@ -368,21 +368,21 @@ AC_ARG_ENABLE(build-format-warnings,
[],[enable_build_format_warnings=yes])
AS_IF([test $enable_build_format_warnings = no],
[wf_opt=-Wno-format],[wf_opt=])
ACX_PROG_CC_WARNING_OPTS(
ACX_PROG_CXX_WARNING_OPTS(
m4_quote(m4_do([-W -Wall -Wno-narrowing -Wwrite-strings -Wcast-qual $wf_opt])), [loose_warn])
ACX_PROG_CC_WARNING_OPTS(
m4_quote(m4_do([-Wstrict-prototypes -Wmissing-prototypes])),
[c_loose_warn])
ACX_PROG_CC_WARNING_OPTS(
ACX_PROG_CXX_WARNING_OPTS(
m4_quote(m4_do([-Wmissing-format-attribute])), [strict_warn])
ACX_PROG_CC_WARNING_OPTS(
ACX_PROG_CXX_WARNING_OPTS(
m4_quote(m4_do([-Woverloaded-virtual])), [strict_warn])
ACX_PROG_CC_WARNING_OPTS(
m4_quote(m4_do([-Wold-style-definition -Wc++-compat])), [c_strict_warn])
ACX_PROG_CC_WARNING_ALMOST_PEDANTIC(
ACX_PROG_CXX_WARNING_ALMOST_PEDANTIC(
m4_quote(m4_do([-Wno-long-long -Wno-variadic-macros ],
[-Wno-overlength-strings])), [strict_warn])
ACX_PROG_CC_WARNINGS_ARE_ERRORS([manual], [strict_warn])
ACX_PROG_CXX_WARNINGS_ARE_ERRORS([manual], [strict_warn])
# The above macros do nothing if the compiler is not GCC. However, the
# Makefile has more goo to add other flags, so these variables are used
......
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