From: Zack Weinberg Date: Fri, 24 Sep 2004 21:39:06 +0000 (+0000) Subject: warnings.m4: New file. X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=018a4785065ba0b5164d5aae330613e42c5653ac;p=gcc.git warnings.m4: New file. config: * warnings.m4: New file. libcpp: * configure.ac: Move AC_PROG_MAKE_SET, AC_PROG_INSTALL to programs cluster. Use ACX_PROG_CC_WARNING_OPTS, ACX_PROG_CC_WARNING_ALMOST_PEDANTIC, ACX_PROG_CC_WARNINGS_ARE_ERRORS. * aclocal.m4, configure: Regenerate. * init.c: Include localedir.h. * Makefile.in (WARN_CFLAGS, ALL_CFLAGS): New variables. (DEFS): Delete. (.c.o): Use $(ALL_CFLAGS). (localedir.h, localedir.hs): New rules. (clean): Use rm -rf to remove directories. (distclean): Also delete localedir.h and localedir.hs. (init.o): Update dependencies. From-SVN: r88074 --- diff --git a/config/ChangeLog b/config/ChangeLog index 08b315d6edb..5e417bdd259 100644 --- a/config/ChangeLog +++ b/config/ChangeLog @@ -1,3 +1,7 @@ +2004-09-24 Zack Weinberg + + * warnings.m4: New file. + 2004-09-23 H.J. Lu PR bootstrap/17369 diff --git a/config/warnings.m4 b/config/warnings.m4 new file mode 100644 index 00000000000..5501be92046 --- /dev/null +++ b/config/warnings.m4 @@ -0,0 +1,97 @@ +# Autoconf include file defining macros related to compile-time warnings. + +# Copyright 2004 Free Software Foundation, Inc. + +#This file is part of GCC. + +#GCC is free software; you can redistribute it and/or modify it under +#the terms of the GNU General Public License as published by the Free +#Software Foundation; either version 2, or (at your option) any later +#version. + +#GCC is distributed in the hope that it will be useful, but WITHOUT +#ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or +#FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License +#for more details. + +#You should have received a copy of the GNU General Public License +#along with GCC; see the file COPYING. If not, write to the Free +#Software Foundation, 59 Temple Place - Suite 330, Boston, MA +#02111-1307, USA. + +# ACX_PROG_CC_WARNING_OPTS([-Wfoo -Wbar -Wbaz]) +# Sets @WARN_CFLAGS@ to the subset of the given options which the +# compiler accepts. +AC_DEFUN([ACX_PROG_CC_WARNING_OPTS], +[AC_REQUIRE([AC_PROG_CC])dnl +AC_SUBST([WARN_CFLAGS])dnl +WARN_CFLAGS= +save_CFLAGS="$CFLAGS" +for option in $1; do + AS_VAR_PUSHDEF([acx_Woption], [acx_cv_prog_cc_warning_$option]) + AC_CACHE_CHECK([whether $CC supports $option], acx_Woption, + [CFLAGS="$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], + [WARN_CFLAGS="$WARN_CFLAGS${WARN_CFLAGS:+ }$option"]) + AS_VAR_POPDEF([acx_Woption])dnl +done +CFLAGS="$save_CFLAGS" +])# ACX_PROG_CC_WARNING_OPTS + +# ACX_PROG_CC_WARNING_ALMOST_PEDANTIC([-Wno-long-long ...]) +# Sets WARN_PEDANTIC to "-pedantic" + the argument, if the compiler +# accepts all of those options simultaneously, otherwise to nothing. +AC_DEFUN([ACX_PROG_CC_WARNING_ALMOST_PEDANTIC], +[AC_REQUIRE([AC_PROG_CC])dnl +AC_SUBST([WARN_PEDANTIC])dnl +AS_VAR_PUSHDEF([acx_Pedantic], [acx_cv_prog_cc_pedantic_$1])dnl +WARN_PEDANTIC= +AC_CACHE_CHECK([whether $CC supports -pedantic $1], acx_Pedantic, +[save_CFLAGS="$CFLAGS" +CFLAGS="-pedantic $1" +AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],[])], + [AS_VAR_SET(acx_Pedantic, yes)], + [AS_VAR_SET(acx_Pedantic, no)]) +CFLAGS="$save_CFLAGS"]) +AS_IF([test AS_VAR_GET(acx_Pedantic) = yes], + [WARN_PEDANTIC="-pedantic $1"]) +AS_VAR_POPDEF([acx_Pedantic])dnl +])# ACX_PROG_CC_WARNING_ALMOST_PEDANTIC + +# ACX_PROG_CC_WARNINGS_ARE_ERRORS([x.y.z]) +# sets WERROR to "-Werror" if the compiler is GCC >=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 WERROR will be set to -Werror only if --enable-werror-always +# appeared on the configure command line. +AC_DEFUN([ACX_PROG_CC_WARNINGS_ARE_ERRORS], +[AC_REQUIRE([AC_PROG_CC])dnl +AC_SUBST([WERROR])dnl +WERROR= +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], + [WERROR=-Werror], + m4_if($1, [manual],, + [AS_VAR_PUSHDEF([acx_GCCvers], [acx_cv_prog_cc_gcc_$1_or_newer])dnl + AC_CACHE_CHECK([whether $CC is GCC >=$1], acx_GCCvers, + [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_GCCvers, yes)], + [AS_VAR_SET(acx_GCCvers, no)])]) + AS_IF([test AS_VAR_GET(acx_GCCvers) = yes], + [WERROR=-WerrorB]) + AS_VAR_POPDEF([acx_GCCvers])])) +])# ACX_PROG_CC_WARNINGS_ARE_ERRORS diff --git a/libcpp/ChangeLog b/libcpp/ChangeLog index 9203c5b6b81..839b559fad6 100644 --- a/libcpp/ChangeLog +++ b/libcpp/ChangeLog @@ -1,3 +1,18 @@ +2004-09-24 Zack Weinberg + + * configure.ac: Move AC_PROG_MAKE_SET, AC_PROG_INSTALL to + programs cluster. Use ACX_PROG_CC_WARNING_OPTS, + ACX_PROG_CC_WARNING_ALMOST_PEDANTIC, ACX_PROG_CC_WARNINGS_ARE_ERRORS. + * aclocal.m4, configure: Regenerate. + * init.c: Include localedir.h. + * Makefile.in (WARN_CFLAGS, ALL_CFLAGS): New variables. + (DEFS): Delete. + (.c.o): Use $(ALL_CFLAGS). + (localedir.h, localedir.hs): New rules. + (clean): Use rm -rf to remove directories. + (distclean): Also delete localedir.h and localedir.hs. + (init.o): Update dependencies. + 2004-09-22 Kelley Cook * Makefile.in (aclocal.m4): Update dependencies. diff --git a/libcpp/Makefile.in b/libcpp/Makefile.in index 9158d670f26..9c89a25c152 100644 --- a/libcpp/Makefile.in +++ b/libcpp/Makefile.in @@ -34,6 +34,7 @@ AUTOHEADER = @AUTOHEADER@ CATALOGS = @CATALOGS@ CC = @CC@ CFLAGS = @CFLAGS@ +WARN_CFLAGS = @WARN_CFLAGS@ @WARN_PEDANTIC@ @WERROR@ CPP = @CPP@ CPPFLAGS = @CPPFLAGS@ EXEEXT = @EXEEXT@ @@ -59,10 +60,11 @@ prefix = @prefix@ MSGMERGE = msgmerge mkinstalldirs = $(SHELL) $(srcdir)/../mkinstalldirs -DEFS = -DLOCALEDIR="\"$(localedir)\"" INCLUDES = -I$(srcdir) -I. -I$(srcdir)/../include @INCINTL@ \ -I$(srcdir)/include +ALL_CFLAGS = $(CFLAGS) $(WARN_CFLAGS) $(INCLUDES) $(CPPFLAGS) + libcpp_a_OBJS = charset.o directives.o errors.o expr.o files.o \ identifiers.o init.o lex.o line-map.o macro.o mkdeps.o \ pch.o symtab.o traditional.o @@ -116,7 +118,15 @@ stamp-h1: $(srcdir)/config.in config.status $(srcdir)/config.in: @MAINT@ $(srcdir)/configure cd $(srcdir) && $(AUTOHEADER) -rm -f stamp-h1 - + +# It is not possible to get LOCALEDIR defined in config.h because +# the value it needs to be defined to is only determined in the +# Makefile. Hence we do this instead. +localedir.h: localedir.hs; @true +localedir.hs: Makefile + echo "#define LOCALEDIR \"$(localedir)\"" > localedir.new + $(srcdir)/../move-if-change localedir.new localedir.h + echo timestamp > localedir.hs # Installation rules and other phony targets @@ -150,11 +160,12 @@ mostlyclean: -rm -f *.o clean: mostlyclean - -rm -f makedepend$(EXEEXT) libcpp.a $(srcdir)/autom4te.cache + -rm -rf makedepend$(EXEEXT) libcpp.a $(srcdir)/autom4te.cache distclean: clean -rm -f config.h stamp-h1 config.status config.cache config.log \ - configure.lineno configure.status.lineno Makefile + configure.lineno configure.status.lineno Makefile localedir.h \ + localedir.hs maintainer-clean: distclean @echo "This command is intended for maintainers to use" @@ -178,7 +189,7 @@ update-po: $(CATALOGS:.gmo=.pox) # Implicit rules and I18N .c.o: - $(CC) $(DEFS) $(INCLUDES) $(CPPFLAGS) $(CFLAGS) -c $< + $(CC) $(DEFS) $(INCLUDES) $(CPPFLAGS) $(ALL_CFLAGS) -c $< # N.B. We do not attempt to copy these into $(srcdir). .po.gmo: @@ -230,9 +241,8 @@ expr.o: $(srcdir)/expr.c $(COMMON_DEPS) files.o: $(srcdir)/files.c $(COMMON_DEPS) $(libcpp_incdir)/mkdeps.h \ $(top_incdir)/hashtab.h $(top_incdir)/md5.h - identifiers.o: $(srcdir)/identifiers.c $(COMMON_DEPS) -init.o: $(srcdir)/init.c $(COMMON_DEPS) $(libcpp_incdir)/mkdeps.h +init.o: $(srcdir)/init.c $(COMMON_DEPS) $(libcpp_incdir)/mkdeps.h localedir.h lex.o: $(srcdir)/lex.c $(COMMON_DEPS) line-map.o: $(srcdir)/line-map.c $(COMMON_DEPS) macro.o: $(srcdir)/macro.c $(COMMON_DEPS) diff --git a/libcpp/aclocal.m4 b/libcpp/aclocal.m4 index 50eb82f77f5..3640760e76a 100644 --- a/libcpp/aclocal.m4 +++ b/libcpp/aclocal.m4 @@ -18,3 +18,4 @@ m4_include([../config/iconv.m4]) m4_include([../config/lib-ld.m4]) m4_include([../config/lib-link.m4]) m4_include([../config/lib-prefix.m4]) +m4_include([../config/warnings.m4]) diff --git a/libcpp/configure b/libcpp/configure index c23f2f9a2c3..7a1bc914a5e 100755 --- a/libcpp/configure +++ b/libcpp/configure @@ -311,7 +311,7 @@ ac_includes_default="\ # include #endif" -ac_subst_vars='SHELL PATH_SEPARATOR PACKAGE_NAME PACKAGE_TARNAME PACKAGE_VERSION PACKAGE_STRING PACKAGE_BUGREPORT exec_prefix prefix program_transform_name bindir sbindir libexecdir datadir sysconfdir sharedstatedir localstatedir libdir includedir oldincludedir infodir mandir build_alias host_alias target_alias DEFS ECHO_C ECHO_N ECHO_T LIBS build build_cpu build_vendor build_os host host_cpu host_vendor host_os target target_cpu target_vendor target_os SET_MAKE INSTALL_PROGRAM INSTALL_SCRIPT INSTALL_DATA CC CFLAGS LDFLAGS CPPFLAGS ac_ct_CC EXEEXT OBJEXT RANLIB ac_ct_RANLIB ACLOCAL AUTOCONF AUTOHEADER CPP EGREP LIBOBJS ALLOCA USE_NLS LIBINTL LIBINTL_DEP INCINTL XGETTEXT GMSGFMT POSUB CATALOGS LIBICONV LTLIBICONV PACKAGE USED_CATALOGS MAINT LTLIBOBJS' +ac_subst_vars='SHELL PATH_SEPARATOR PACKAGE_NAME PACKAGE_TARNAME PACKAGE_VERSION PACKAGE_STRING PACKAGE_BUGREPORT exec_prefix prefix program_transform_name bindir sbindir libexecdir datadir sysconfdir sharedstatedir localstatedir libdir includedir oldincludedir infodir mandir build_alias host_alias target_alias DEFS ECHO_C ECHO_N ECHO_T LIBS build build_cpu build_vendor build_os host host_cpu host_vendor host_os target target_cpu target_vendor target_os SET_MAKE INSTALL_PROGRAM INSTALL_SCRIPT INSTALL_DATA CC CFLAGS LDFLAGS CPPFLAGS ac_ct_CC EXEEXT OBJEXT RANLIB ac_ct_RANLIB ACLOCAL AUTOCONF AUTOHEADER WARN_CFLAGS WARN_PEDANTIC WERROR CPP EGREP LIBOBJS ALLOCA USE_NLS LIBINTL LIBINTL_DEP INCINTL XGETTEXT GMSGFMT POSUB CATALOGS LIBICONV LTLIBICONV PACKAGE USED_CATALOGS MAINT LTLIBOBJS' ac_subst_files='' # Initialize some variables set by options. @@ -849,6 +849,7 @@ if test -n "$ac_init_help"; then Optional Features: --disable-FEATURE do not include FEATURE (same as --enable-FEATURE=no) --enable-FEATURE[=ARG] include FEATURE [ARG=yes] + --enable-werror-always enable -Werror despite compiler version --disable-rpath do not hardcode runtime library paths --enable-maintainer-mode enable rules only needed by maintainers --enable-checking enable expensive run-time checks @@ -1437,6 +1438,8 @@ test -n "$target_alias" && test "$program_prefix$program_suffix$program_transform_name" = \ NONENONEs,x,x, && program_prefix=${target_alias}- + +# Checks for programs. echo "$as_me:$LINENO: checking whether ${MAKE-make} sets \$(MAKE)" >&5 echo $ECHO_N "checking whether ${MAKE-make} sets \$(MAKE)... $ECHO_C" >&6 set dummy ${MAKE-make}; ac_make=`echo "$2" | sed 'y,:./+-,___p_,'` @@ -1545,8 +1548,6 @@ test -z "$INSTALL_SCRIPT" && INSTALL_SCRIPT='${INSTALL}' test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644' - -# Checks for programs. ac_ext=c ac_cpp='$CPP $CPPFLAGS' ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' @@ -2683,8 +2684,158 @@ done test -n "$AUTOHEADER" || AUTOHEADER="$MISSING autoheader" -# Checks for header files. +# Figure out what compiler warnings we can enable. +# See config/warnings.m4 for details. + + +WARN_CFLAGS= +save_CFLAGS="$CFLAGS" +for option in -W -Wall -Wwrite-strings -Wstrict-prototypes \ + -Wmissing-prototypes -Wold-style-definition; do + as_acx_Woption=`echo "acx_cv_prog_cc_warning_$option" | $as_tr_sh` + + echo "$as_me:$LINENO: checking whether $CC supports $option" >&5 +echo $ECHO_N "checking whether $CC supports $option... $ECHO_C" >&6 +if eval "test \"\${$as_acx_Woption+set}\" = set"; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + CFLAGS="$option" + cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +rm -f conftest.$ac_objext +if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 + (eval $ac_compile) 2>conftest.er1 + ac_status=$? + grep -v '^ *+' conftest.er1 >conftest.err + rm -f conftest.er1 + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } && + { ac_try='test -z "$ac_c_werror_flag" + || test ! -s conftest.err' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; } && + { ac_try='test -s conftest.$ac_objext' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; }; then + eval "$as_acx_Woption=yes" +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + +eval "$as_acx_Woption=no" +fi +rm -f conftest.err conftest.$ac_objext conftest.$ac_ext + +fi +echo "$as_me:$LINENO: result: `eval echo '${'$as_acx_Woption'}'`" >&5 +echo "${ECHO_T}`eval echo '${'$as_acx_Woption'}'`" >&6 + if test `eval echo '${'$as_acx_Woption'}'` = yes; then + WARN_CFLAGS="$WARN_CFLAGS${WARN_CFLAGS:+ }$option" +fi + + done +CFLAGS="$save_CFLAGS" +WARN_PEDANTIC= +echo "$as_me:$LINENO: checking whether $CC supports -pedantic -Wno-long-long" >&5 +echo $ECHO_N "checking whether $CC supports -pedantic -Wno-long-long... $ECHO_C" >&6 +if test "${acx_cv_prog_cc_pedantic__Wno_long_long+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + save_CFLAGS="$CFLAGS" +CFLAGS="-pedantic -Wno-long-long" +cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +rm -f conftest.$ac_objext +if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 + (eval $ac_compile) 2>conftest.er1 + ac_status=$? + grep -v '^ *+' conftest.er1 >conftest.err + rm -f conftest.er1 + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } && + { ac_try='test -z "$ac_c_werror_flag" + || test ! -s conftest.err' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; } && + { ac_try='test -s conftest.$ac_objext' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; }; then + acx_cv_prog_cc_pedantic__Wno_long_long=yes +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + +acx_cv_prog_cc_pedantic__Wno_long_long=no +fi +rm -f conftest.err conftest.$ac_objext conftest.$ac_ext +CFLAGS="$save_CFLAGS" +fi +echo "$as_me:$LINENO: result: $acx_cv_prog_cc_pedantic__Wno_long_long" >&5 +echo "${ECHO_T}$acx_cv_prog_cc_pedantic__Wno_long_long" >&6 +if test $acx_cv_prog_cc_pedantic__Wno_long_long = yes; then + WARN_PEDANTIC="-pedantic -Wno-long-long" +fi + + + +# Only enable with --enable-werror-always until existing warnings are +# corrected. +WERROR= +# Check whether --enable-werror-always or --disable-werror-always was given. +if test "${enable_werror_always+set}" = set; then + enableval="$enable_werror_always" + +else + enable_werror_always=no +fi; +if test $enable_werror_always = yes; then + WERROR=-Werror +fi + + + +# Checks for header files. echo "$as_me:$LINENO: checking whether time.h and sys/time.h may both be included" >&5 echo $ECHO_N "checking whether time.h and sys/time.h may both be included... $ECHO_C" >&6 if test "${ac_cv_header_time+set}" = set; then @@ -7564,6 +7715,9 @@ s,@ac_ct_RANLIB@,$ac_ct_RANLIB,;t t s,@ACLOCAL@,$ACLOCAL,;t t s,@AUTOCONF@,$AUTOCONF,;t t s,@AUTOHEADER@,$AUTOHEADER,;t t +s,@WARN_CFLAGS@,$WARN_CFLAGS,;t t +s,@WARN_PEDANTIC@,$WARN_PEDANTIC,;t t +s,@WERROR@,$WERROR,;t t s,@CPP@,$CPP,;t t s,@EGREP@,$EGREP,;t t s,@LIBOBJS@,$LIBOBJS,;t t diff --git a/libcpp/configure.ac b/libcpp/configure.ac index 60d00392199..0bcf1711b03 100644 --- a/libcpp/configure.ac +++ b/libcpp/configure.ac @@ -6,10 +6,10 @@ AC_INIT(cpplib, [ ], gcc-bugs@gcc.gnu.org, cpplib) AC_CONFIG_SRCDIR(ucnid.h) AC_CONFIG_MACRO_DIR(../config) AC_CANONICAL_SYSTEM -AC_PROG_MAKE_SET -AC_PROG_INSTALL # Checks for programs. +AC_PROG_MAKE_SET +AC_PROG_INSTALL AC_PROG_CC AC_PROG_RANLIB @@ -18,6 +18,17 @@ AC_CHECK_PROGS([ACLOCAL], [aclocal], [$MISSING aclocal]) AC_CHECK_PROGS([AUTOCONF], [autoconf], [$MISSING autoconf]) AC_CHECK_PROGS([AUTOHEADER], [autoheader], [$MISSING autoheader]) +# Figure out what compiler warnings we can enable. +# See config/warnings.m4 for details. + +ACX_PROG_CC_WARNING_OPTS([-W -Wall -Wwrite-strings -Wstrict-prototypes \ + -Wmissing-prototypes -Wold-style-definition]) +ACX_PROG_CC_WARNING_ALMOST_PEDANTIC([-Wno-long-long]) + +# Only enable with --enable-werror-always until existing warnings are +# corrected. +ACX_PROG_CC_WARNINGS_ARE_ERRORS([manual]) + # Checks for header files. AC_HEADER_TIME ACX_HEADER_STRING diff --git a/libcpp/init.c b/libcpp/init.c index aaf1d6b353c..b2be19a7136 100644 --- a/libcpp/init.c +++ b/libcpp/init.c @@ -24,6 +24,7 @@ Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include "cpplib.h" #include "internal.h" #include "mkdeps.h" +#include "localedir.h" static void init_library (void); static void mark_named_operators (cpp_reader *);