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re PR rtl-optimization/79003 (r238991 breaks ODR)

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PR bootstrap/79003
	* Makefile.in (CFLAGS, CPPFLAGS, LDFLAGS): Remove -fno-lto.
	(NOLTO_FLAGS): New variable.
	(ALL_CFLAGS): Use it.
	* configure.ac (nolto_flags): New ACX_PROG_CC_WARNING_OPTS,
	check for whether -fno-lto works.
	* configure: Regenerated.

From-SVN: r244208
This commit is contained in:
Jakub Jelinek 2017-01-08 17:43:30 +01:00 committed by Jakub Jelinek
parent d8dc87c24c
commit 8a1f09e4d9
4 changed files with 77 additions and 4 deletions
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10
libdecnumber/ChangeLog
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@ -1,3 +1,13 @@
2017-01-08 Jakub Jelinek <jakub@redhat.com>
PR bootstrap/79003
* Makefile.in (CFLAGS, CPPFLAGS, LDFLAGS): Remove -fno-lto.
(NOLTO_FLAGS): New variable.
(ALL_CFLAGS): Use it.
* configure.ac (nolto_flags): New ACX_PROG_CC_WARNING_OPTS,
check for whether -fno-lto works.
* configure: Regenerated.
2017-01-06 Martin Liska <mliska@suse.cz>
PR bootstrap/79003

10
libdecnumber/Makefile.in
View File

@ -31,19 +31,20 @@ ACLOCAL = @ACLOCAL@
AUTOCONF = @AUTOCONF@
AUTOHEADER = @AUTOHEADER@
CC = @CC@
CFLAGS = @CFLAGS@ -fno-lto
CFLAGS = @CFLAGS@
WARN_CFLAGS = @WARN_CFLAGS@ @WARN_PEDANTIC@ @WERROR@
CPP = @CPP@
CPPFLAGS = @CPPFLAGS@ -fno-lto
CPPFLAGS = @CPPFLAGS@
INSTALL_DATA = @INSTALL_DATA@
INSTALL_PROGRAM = @INSTALL_PROGRAM@
LDFLAGS = @LDFLAGS@ -fno-lto
LDFLAGS = @LDFLAGS@
LIBICONV = @LIBICONV@
PACKAGE = @PACKAGE@
PICFLAG = @PICFLAG@
RANLIB = @RANLIB@
SHELL = @SHELL@
objext = @OBJEXT@
NOLTO_FLAGS = @nolto_flags@
datarootdir = @datarootdir@
datadir = @datadir@
@ -58,7 +59,8 @@ enable_decimal_float= @enable_decimal_float@
INCLUDES = -I$(srcdir) -I.
ALL_CFLAGS = $(CFLAGS) $(WARN_CFLAGS) $(INCLUDES) $(CPPFLAGS) $(PICFLAG)
ALL_CFLAGS = $(CFLAGS) $(WARN_CFLAGS) $(NOLTO_FLAGS) $(INCLUDES) $(CPPFLAGS) \
$(PICFLAG)
bid_OBJS = bid2dpd_dpd2bid.$(objext) host-ieee32.$(objext) \
host-ieee64.$(objext) host-ieee128.$(objext)

59
libdecnumber/configure vendored
View File

@ -613,6 +613,7 @@ EGREP
GREP
CPP
WERROR
nolto_flags
WARN_PEDANTIC
WARN_CFLAGS
AUTOHEADER
@ -3382,6 +3383,64 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu
ac_ext=c
ac_cpp='$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
nolto_flags=
save_CFLAGS="$CFLAGS"
for real_option in -fno-lto; 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=$real_option ;;
esac
as_acx_Woption=`$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 $option... " >&6; }
if { as_var=$as_acx_Woption; eval "test \"\${$as_var+set}\" = set"; }; then :
$as_echo_n "(cached) " >&6
else
CFLAGS="$option"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
int
main ()
{
;
return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
eval "$as_acx_Woption=yes"
else
eval "$as_acx_Woption=no"
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
fi
eval ac_res=\$$as_acx_Woption
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
$as_echo "$ac_res" >&6; }
if test `eval 'as_val=${'$as_acx_Woption'};$as_echo "$as_val"'` = yes; then :
nolto_flags="$nolto_flags${nolto_flags:+ }$real_option"
fi
done
CFLAGS="$save_CFLAGS"
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
# Only enable with --enable-werror-always until existing warnings are
# corrected.
ac_ext=c

2
libdecnumber/configure.ac
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@ -43,6 +43,8 @@ ACX_PROG_CC_WARNING_OPTS([-W -Wall -Wwrite-strings -Wstrict-prototypes \
-Wmissing-format-attribute -Wcast-qual])
ACX_PROG_CC_WARNING_ALMOST_PEDANTIC([-Wno-long-long])
ACX_PROG_CC_WARNING_OPTS([-fno-lto], [nolto_flags])
# Only enable with --enable-werror-always until existing warnings are
# corrected.
ACX_PROG_CC_WARNINGS_ARE_ERRORS([manual])