re PR rtl-optimization/79003 (r238991 breaks ODR)
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
Jakub Jelinek
parent
d8dc87c24c
commit
8a1f09e4d9
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@ -1,3 +1,13 @@
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2017-01-08 Jakub Jelinek <jakub@redhat.com>
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PR bootstrap/79003
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* Makefile.in (CFLAGS, CPPFLAGS, LDFLAGS): Remove -fno-lto.
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(NOLTO_FLAGS): New variable.
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(ALL_CFLAGS): Use it.
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* configure.ac (nolto_flags): New ACX_PROG_CC_WARNING_OPTS,
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check for whether -fno-lto works.
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* configure: Regenerated.
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2017-01-06 Martin Liska <mliska@suse.cz>
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PR bootstrap/79003
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@ -31,19 +31,20 @@ ACLOCAL = @ACLOCAL@
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AUTOCONF = @AUTOCONF@
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AUTOHEADER = @AUTOHEADER@
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CC = @CC@
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CFLAGS = @CFLAGS@ -fno-lto
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CFLAGS = @CFLAGS@
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WARN_CFLAGS = @WARN_CFLAGS@ @WARN_PEDANTIC@ @WERROR@
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CPP = @CPP@
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CPPFLAGS = @CPPFLAGS@ -fno-lto
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CPPFLAGS = @CPPFLAGS@
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INSTALL_DATA = @INSTALL_DATA@
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INSTALL_PROGRAM = @INSTALL_PROGRAM@
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LDFLAGS = @LDFLAGS@ -fno-lto
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LDFLAGS = @LDFLAGS@
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LIBICONV = @LIBICONV@
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PACKAGE = @PACKAGE@
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PICFLAG = @PICFLAG@
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RANLIB = @RANLIB@
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SHELL = @SHELL@
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objext = @OBJEXT@
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NOLTO_FLAGS = @nolto_flags@
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datarootdir = @datarootdir@
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datadir = @datadir@
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@ -58,7 +59,8 @@ enable_decimal_float= @enable_decimal_float@
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INCLUDES = -I$(srcdir) -I.
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ALL_CFLAGS = $(CFLAGS) $(WARN_CFLAGS) $(INCLUDES) $(CPPFLAGS) $(PICFLAG)
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ALL_CFLAGS = $(CFLAGS) $(WARN_CFLAGS) $(NOLTO_FLAGS) $(INCLUDES) $(CPPFLAGS) \
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$(PICFLAG)
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bid_OBJS = bid2dpd_dpd2bid.$(objext) host-ieee32.$(objext) \
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host-ieee64.$(objext) host-ieee128.$(objext)
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@ -613,6 +613,7 @@ EGREP
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GREP
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CPP
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WERROR
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nolto_flags
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WARN_PEDANTIC
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WARN_CFLAGS
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AUTOHEADER
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@ -3382,6 +3383,64 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu
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ac_ext=c
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ac_cpp='$CPP $CPPFLAGS'
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ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
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ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
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ac_compiler_gnu=$ac_cv_c_compiler_gnu
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nolto_flags=
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save_CFLAGS="$CFLAGS"
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for real_option in -fno-lto; do
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# Do the check with the no- prefix removed since gcc silently
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# accepts any -Wno-* option on purpose
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case $real_option in
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-Wno-*) option=-W`expr x$real_option : 'x-Wno-\(.*\)'` ;;
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*) option=$real_option ;;
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esac
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as_acx_Woption=`$as_echo "acx_cv_prog_cc_warning_$option" | $as_tr_sh`
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC supports $option" >&5
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$as_echo_n "checking whether $CC supports $option... " >&6; }
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if { as_var=$as_acx_Woption; eval "test \"\${$as_var+set}\" = set"; }; then :
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$as_echo_n "(cached) " >&6
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else
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CFLAGS="$option"
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cat confdefs.h - <<_ACEOF >conftest.$ac_ext
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/* end confdefs.h. */
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int
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main ()
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{
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;
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return 0;
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}
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_ACEOF
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if ac_fn_c_try_compile "$LINENO"; then :
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eval "$as_acx_Woption=yes"
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else
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eval "$as_acx_Woption=no"
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fi
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rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
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fi
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eval ac_res=\$$as_acx_Woption
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
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$as_echo "$ac_res" >&6; }
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if test `eval 'as_val=${'$as_acx_Woption'};$as_echo "$as_val"'` = yes; then :
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nolto_flags="$nolto_flags${nolto_flags:+ }$real_option"
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fi
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done
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CFLAGS="$save_CFLAGS"
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ac_ext=c
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ac_cpp='$CPP $CPPFLAGS'
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ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
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ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
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ac_compiler_gnu=$ac_cv_c_compiler_gnu
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# Only enable with --enable-werror-always until existing warnings are
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# corrected.
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ac_ext=c
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@ -43,6 +43,8 @@ ACX_PROG_CC_WARNING_OPTS([-W -Wall -Wwrite-strings -Wstrict-prototypes \
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-Wmissing-format-attribute -Wcast-qual])
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ACX_PROG_CC_WARNING_ALMOST_PEDANTIC([-Wno-long-long])
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ACX_PROG_CC_WARNING_OPTS([-fno-lto], [nolto_flags])
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# Only enable with --enable-werror-always until existing warnings are
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# corrected.
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ACX_PROG_CC_WARNINGS_ARE_ERRORS([manual])
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