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* csu/Makefile [$(elf)=yes] (have-initfini): Set to yes.

Browse Source 
[$(have-initfini)=yes]: Test this rather than $(elf) for crtstuff.
	[start-installed-name-rule]: If this is defined, elide rule for
	$(objpfx)$(start-installed-name).
	* sysdeps/unix/sysv/sco3.2.4/Makefile [$(subdir)=csu]
 	(start-installed-rule, start-installed-name-rule): New variables;
 	specify crt1.o, created by our own rule.
	($(objpfx)crt1.o): New rule.
	* configure.in: Require autoconf 2.4.2 or later.  Change all
 	AC_CACHE_VAL uses to use new AC_CACHE_CHECK macro instead;
 	prettify some messages.
	[$elf!=yes] (libc_cv_have_initfini): New test for `.init' and `.fini'
	sections.
	* munch-tmpl.c [HAVE_INITFINI]: Call _init and atexit (_fini) in
 	this case rather than #ifdef HAVE_ELF.
	* config.h.in (HAVE_INITFINI): New macro.
This commit is contained in:
Roland McGrath 1995-07-27 09:00:07 +00:00
parent 4e1bac76a8
commit b8dc6a10ee
7 changed files with 276 additions and 73 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
ChangeLog
View File

@ -1,5 +1,22 @@
Wed Jul 26 02:00:29 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
* csu/Makefile [$(elf)=yes] (have-initfini): Set to yes.
[$(have-initfini)=yes]: Test this rather than $(elf) for crtstuff.
[start-installed-name-rule]: If this is defined, elide rule for
$(objpfx)$(start-installed-name).
* sysdeps/unix/sysv/sco3.2.4/Makefile [$(subdir)=csu]
(start-installed-rule, start-installed-name-rule): New variables;
specify crt1.o, created by our own rule.
($(objpfx)crt1.o): New rule.
* configure.in: Require autoconf 2.4.2 or later. Change all
AC_CACHE_VAL uses to use new AC_CACHE_CHECK macro instead;
prettify some messages.
[$elf!=yes] (libc_cv_have_initfini): New test for `.init' and `.fini'
sections.
* munch-tmpl.c [HAVE_INITFINI]: Call _init and atexit (_fini) in
this case rather than #ifdef HAVE_ELF.
* config.h.in (HAVE_INITFINI): New macro.
* stdio/vfscanf.c (conv_error): Simplify expression to avoid
"value computed is not used" warning.

3
config.h.in
View File

@ -11,6 +11,9 @@
linker being used. Set by --with-weak-symbols. */
#undef HAVE_WEAK_SYMBOLS
/* Define if not using ELF, but `.init' and `.fini' sections are available. */
#undef HAVE_INITFINI
/* Define if using the GNU assembler, gas. */
#undef HAVE_GNU_AS

255
configure vendored
View File

@ -2,7 +2,7 @@
# From configure.in CVSid
# Guess values for system-dependent variables and create Makefiles.
# Generated automatically using autoconf version 2.4
# Generated automatically using autoconf version 2.4.2
# Copyright (C) 1992, 1993, 1994 Free Software Foundation, Inc.
#
# This configure script is free software; the Free Software Foundation
@ -54,6 +54,18 @@ target=NONE
verbose=
x_includes=NONE
x_libraries=NONE
bindir='${exec_prefix}/bin'
sbindir='${exec_prefix}/sbin'
libexecdir='${exec_prefix}/libexec'
datadir='${prefix}/share'
sysconfdir='${prefix}/etc'
sharedstatedir='${prefix}/com'
localstatedir='${prefix}/var'
libdir='${exec_prefix}/lib'
includedir='${prefix}/include'
oldincludedir='/usr/include'
infodir='${prefix}/info'
mandir='${prefix}/man'
# Initialize some other variables.
subdirs=
@ -78,9 +90,14 @@ do
case "$ac_option" in
-build | --build | --buil | --bui | --bu | --b)
-bindir | --bindir | --bindi | --bind | --bin | --bi)
ac_prev=bindir ;;
-bindir=* | --bindir=* | --bindi=* | --bind=* | --bin=* | --bi=*)
bindir="$ac_optarg" ;;
-build | --build | --buil | --bui | --bu)
ac_prev=build ;;
-build=* | --build=* | --buil=* | --bui=* | --bu=* | --b=*)
-build=* | --build=* | --buil=* | --bui=* | --bu=*)
build="$ac_optarg" ;;
-cache-file | --cache-file | --cache-fil | --cache-fi \
@ -90,6 +107,12 @@ do
| --cache-f=* | --cache-=* | --cache=* | --cach=* | --cac=* | --ca=* | --c=*)
cache_file="$ac_optarg" ;;
-datadir | --datadir | --datadi | --datad | --data | --dat | --da)
ac_prev=datadir ;;
-datadir=* | --datadir=* | --datadi=* | --datad=* | --data=* | --dat=* \
| --da=*)
datadir="$ac_optarg" ;;
-disable-* | --disable-*)
ac_feature=`echo $ac_option|sed -e 's/-*disable-//'`
# Reject names that are not valid shell variable names.
@ -140,12 +163,26 @@ Configuration:
Directory and file names:
--prefix=PREFIX install architecture-independent files in PREFIX
[$ac_default_prefix]
--exec-prefix=PREFIX install architecture-dependent files in PREFIX
--exec-prefix=EPREFIX install architecture-dependent files in EPREFIX
[same as prefix]
--bindir=DIR user executables in DIR [EPREFIX/bin]
--sbindir=DIR system admin executables in DIR [EPREFIX/sbin]
--libexecdir=DIR program executables in DIR [EPREFIX/libexec]
--datadir=DIR read-only architecture-independent data in DIR [PREFIX/share]
--sysconfdir=DIR read-only single-machine data in DIR [PREFIX/etc]
--sharedstatedir=DIR modifiable architecture-independent data in DIR [PREFIX/com]
--localstatedir=DIR modifiable single-machine data in DIR [PREFIX/var]
--libdir=DIR object code libraries in DIR [EPREFIX/lib]
--includedir=DIR C header files in DIR [PREFIX/include]
--oldincludedir=DIR C header files for non-gcc in DIR [/usr/include]
--infodir=DIR info documentation in DIR [PREFIX/info]
--mandir=DIR man documentation in DIR [PREFIX/man]
--srcdir=DIR find the sources in DIR [configure dir or ..]
--program-prefix=PREFIX prepend PREFIX to installed program names
--program-suffix=SUFFIX append SUFFIX to installed program names
--program-transform-name=PROGRAM run sed PROGRAM on installed program names
EOF
cat << EOF
Host type:
--build=BUILD configure for building on BUILD [BUILD=HOST]
--host=HOST configure for HOST [guessed]
@ -166,6 +203,44 @@ EOF
-host=* | --host=* | --hos=* | --ho=*)
host="$ac_optarg" ;;
-includedir | --includedir | --includedi | --included | --include \
| --includ | --inclu | --incl | --inc)
ac_prev=includedir ;;
-includedir=* | --includedir=* | --includedi=* | --included=* | --include=* \
| --includ=* | --inclu=* | --incl=* | --inc=*)
includedir="$ac_optarg" ;;
-infodir | --infodir | --infodi | --infod | --info | --inf)
ac_prev=infodir ;;
-infodir=* | --infodir=* | --infodi=* | --infod=* | --info=* | --inf=*)
infodir="$ac_optarg" ;;
-libdir | --libdir | --libdi | --libd)
ac_prev=libdir ;;
-libdir=* | --libdir=* | --libdi=* | --libd=*)
libdir="$ac_optarg" ;;
-libexecdir | --libexecdir | --libexecdi | --libexecd | --libexec \
| --libexe | --libex | --libe)
ac_prev=libexecdir ;;
-libexecdir=* | --libexecdir=* | --libexecdi=* | --libexecd=* | --libexec=* \
| --libexe=* | --libex=* | --libe=*)
libexecdir="$ac_optarg" ;;
-localstatedir | --localstatedir | --localstatedi | --localstated \
| --localstate | --localstat | --localsta | --localst \
| --locals | --local | --loca | --loc | --lo)
ac_prev=localstatedir ;;
-localstatedir=* | --localstatedir=* | --localstatedi=* | --localstated=* \
| --localstate=* | --localstat=* | --localsta=* | --localst=* \
| --locals=* | --local=* | --loca=* | --loc=* | --lo=*)
localstatedir="$ac_optarg" ;;
-mandir | --mandir | --mandi | --mand | --man | --ma | --m)
ac_prev=mandir ;;
-mandir=* | --mandir=* | --mandi=* | --mand=* | --man=* | --ma=* | --m=*)
mandir="$ac_optarg" ;;
-nfp | --nfp | --nf)
# Obsolete; use --without-fp.
with_fp=no ;;
@ -178,6 +253,15 @@ EOF
| --no-recurs | --no-recur | --no-recu | --no-rec | --no-re | --no-r)
no_recursion=yes ;;
-oldincludedir | --oldincludedir | --oldincludedi | --oldincluded \
| --oldinclude | --oldinclud | --oldinclu | --oldincl | --oldinc \
| --oldin | --oldi | --old | --ol | --o)
ac_prev=oldincludedir ;;
-oldincludedir=* | --oldincludedir=* | --oldincludedi=* | --oldincluded=* \
| --oldinclude=* | --oldinclud=* | --oldinclu=* | --oldincl=* | --oldinc=* \
| --oldin=* | --oldi=* | --old=* | --ol=* | --o=*)
oldincludedir="$ac_optarg" ;;
-prefix | --prefix | --prefi | --pref | --pre | --pr | --p)
ac_prev=prefix ;;
-prefix=* | --prefix=* | --prefi=* | --pref=* | --pre=* | --pr=* | --p=*)
@ -218,6 +302,23 @@ EOF
| -silent | --silent | --silen | --sile | --sil)
silent=yes ;;
-sbindir | --sbindir | --sbindi | --sbind | --sbin | --sbi | --sb)
ac_prev=sbindir ;;
-sbindir=* | --sbindir=* | --sbindi=* | --sbind=* | --sbin=* \
| --sbi=* | --sb=*)
sbindir="$ac_optarg" ;;
-sharedstatedir | --sharedstatedir | --sharedstatedi \
| --sharedstated | --sharedstate | --sharedstat | --sharedsta \
| --sharedst | --shareds | --shared | --share | --shar \
| --sha | --sh)
ac_prev=sharedstatedir ;;
-sharedstatedir=* | --sharedstatedir=* | --sharedstatedi=* \
| --sharedstated=* | --sharedstate=* | --sharedstat=* | --sharedsta=* \
| --sharedst=* | --shareds=* | --shared=* | --share=* | --shar=* \
| --sha=* | --sh=*)
sharedstatedir="$ac_optarg" ;;
-site | --site | --sit)
ac_prev=site ;;
-site=* | --site=* | --sit=*)
@ -228,6 +329,13 @@ EOF
-srcdir=* | --srcdir=* | --srcdi=* | --srcd=* | --src=* | --sr=*)
srcdir="$ac_optarg" ;;
-sysconfdir | --sysconfdir | --sysconfdi | --sysconfd | --sysconf \
| --syscon | --sysco | --sysc | --sys | --sy)
ac_prev=sysconfdir ;;
-sysconfdir=* | --sysconfdir=* | --sysconfdi=* | --sysconfd=* | --sysconf=* \
| --syscon=* | --sysco=* | --sysc=* | --sys=* | --sy=*)
sysconfdir="$ac_optarg" ;;
-target | --target | --targe | --targ | --tar | --ta | --t)
ac_prev=target ;;
-target=* | --target=* | --targe=* | --targ=* | --tar=* | --ta=* | --t=*)
@ -237,7 +345,7 @@ EOF
verbose=yes ;;
-version | --version | --versio | --versi | --vers)
echo "configure generated by autoconf version 2.4"
echo "configure generated by autoconf version 2.4.2"
exit 0 ;;
-with-* | --with-*)
@ -402,9 +510,12 @@ fi
ac_ext=c
# CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
ac_cpp='$CPP $CPPFLAGS'
ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5 2>&5'
ac_link='${CC-cc} -o conftest $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5 2>&5'
ac_cpp='echo $CPP $CPPFLAGS 1>&5;
$CPP $CPPFLAGS'
ac_compile='echo ${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5;
${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5 2>&5'
ac_link='echo ${CC-cc} -o conftest $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5;
${CC-cc} -o conftest $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5 2>&5'
if (echo "testing\c"; echo 1,2,3) | grep c >/dev/null; then
# Stardent Vistra SVR4 grep lacks -e, says ghazi@caip.rutgers.edu.
@ -434,8 +545,8 @@ config_vars=
# Check for a --with-gmp argument and set gmp-srcdir in config.make.
# Check whether --with-gmp or --without-gmp was given.
withval="$with_gmp"
if test -n "$withval"; then
if test "${with_gmp+set}" = set; then
withval="$with_gmp"
case "$with_gmp" in
yes) { echo "configure: error: --with-gmp requires an argument; use --with-gmp=DIRECTORY" 1>&2; exit 1; } ;;
''|no) ;;
@ -447,32 +558,32 @@ fi
# Check whether --with-fp or --without-fp was given.
withval="$with_fp"
if test -n "$withval"; then
if test "${with_fp+set}" = set; then
withval="$with_fp"
with_fp=$withval
else
with_fp=yes
fi
# Check whether --with-gnu-binutils or --without-gnu-binutils was given.
withval="$with_gnu_binutils"
if test -n "$withval"; then
if test "${with_gnu_binutils+set}" = set; then
withval="$with_gnu_binutils"
gnu_binutils=$withval
else
gnu_binutils=no
fi
# Check whether --with-gnu-ld or --without-gnu-ld was given.
withval="$with_gnu_ld"
if test -n "$withval"; then
if test "${with_gnu_ld+set}" = set; then
withval="$with_gnu_ld"
gnu_ld=$withval
else
gnu_ld=no
fi
# Check whether --with-gnu-as or --without-gnu-as was given.
withval="$with_gnu_as"
if test -n "$withval"; then
if test "${with_gnu_as+set}" = set; then
withval="$with_gnu_as"
gnu_as=$withval
else
gnu_as=no
@ -480,16 +591,16 @@ fi
test $gnu_binutils = yes && gnu_as=yes gnu_ld=yes
# Check whether --with-elf or --without-elf was given.
withval="$with_elf"
if test -n "$withval"; then
if test "${with_elf+set}" = set; then
withval="$with_elf"
elf=$withval
else
elf=no
fi
# Check whether --with-weak-symbols or --without-weak-symbols was given.
withval="$with_weak_symbols"
if test -n "$withval"; then
if test "${with_weak_symbols+set}" = set; then
withval="$with_weak_symbols"
weak=$withval
else
weak=no
@ -497,24 +608,24 @@ fi
# Check whether --enable-shared or --disable-shared was given.
enableval="$enable_shared"
if test -n "$enableval"; then
if test "${enable_shared+set}" = set; then
enableval="$enable_shared"
shared=$enableval
else
shared=default
fi
# Check whether --enable-profile or --disable-profile was given.
enableval="$enable_profile"
if test -n "$enableval"; then
if test "${enable_profile+set}" = set; then
enableval="$enable_profile"
profile=$enableval
else
profile=yes
fi
# Check whether --enable-omitfp or --disable-omitfp was given.
enableval="$enable_omitfp"
if test -n "$enableval"; then
if test "${enable_omitfp+set}" = set; then
enableval="$enable_omitfp"
omitfp=$enableval
else
omitfp=no
@ -777,8 +888,8 @@ done
libc_cv_sysdirs="$sysnames"
fi
echo "$ac_t""$libc_cv_sysdirs" 1>&4
sysnames="$libc_cv_sysdirs"
echo "$ac_t""${sysnames}" 1>&4
# Find a good install program. We prefer a C program (faster),
# so one script is as good as another. But avoid the broken or
@ -819,10 +930,17 @@ else
esac
done
IFS="$ac_save_ifs"
# As a last resort, use the slow shell script.
test -z "$ac_cv_path_install" && ac_cv_path_install="$ac_install_sh"
fi
INSTALL="$ac_cv_path_install"
if test "${ac_cv_path_install+set}" = set; then
INSTALL="$ac_cv_path_install"
else
# As a last resort, use the slow shell script. We don't cache a
# path for INSTALL within a source directory, because that will
# break other packages using the cache if that directory is
# removed, or if the path is relative.
INSTALL="$ac_install_sh"
fi
fi
echo "$ac_t""$INSTALL" 1>&4
@ -870,7 +988,7 @@ else
ac_cv_prog_CC="$CC" # Let the user override the test.
else
IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:"
for ac_dir in $PATH; do
for ac_dir in gcc; do
test -z "$ac_dir" && ac_dir=.
if test -f $ac_dir/$ac_word; then
ac_cv_prog_CC="${ac_tool_prefix}gcc"
@ -900,7 +1018,7 @@ else
ac_cv_prog_AR="$AR" # Let the user override the test.
else
IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:"
for ac_dir in $PATH; do
for ac_dir in ar; do
test -z "$ac_dir" && ac_dir=.
if test -f $ac_dir/$ac_word; then
ac_cv_prog_AR="${ac_tool_prefix}ar"
@ -960,7 +1078,7 @@ else
ac_cv_prog_RANLIB="$RANLIB" # Let the user override the test.
else
IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:"
for ac_dir in $PATH; do
for ac_dir in :; do
test -z "$ac_dir" && ac_dir=.
if test -f $ac_dir/$ac_word; then
ac_cv_prog_RANLIB="ranlib"
@ -998,7 +1116,7 @@ else
# On the NeXT, cc -E runs the code through the compiler's parser,
# not just through cpp.
cat > conftest.$ac_ext <<EOF
#line 1002 "configure"
#line 1120 "configure"
#include "confdefs.h"
#include <assert.h>
Syntax Error
@ -1012,7 +1130,7 @@ else
rm -rf conftest*
CPP="${CC-cc} -E -traditional-cpp"
cat > conftest.$ac_ext <<EOF
#line 1016 "configure"
#line 1134 "configure"
#include "confdefs.h"
#include <assert.h>
Syntax Error
@ -1038,7 +1156,7 @@ fi
echo "$ac_t""$CPP" 1>&4
echo $ac_n "checking signed size_t type""... $ac_c" 1>&4
echo $ac_n "checking for signed size_t type""... $ac_c" 1>&4
if eval "test \"`echo '$''{'libc_cv_signed_size_t'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&4
else
@ -1061,12 +1179,12 @@ if test $libc_cv_signed_size_t = yes; then
EOF
fi
echo $ac_n "checking libc-friendly stddef.h""... $ac_c" 1>&4
echo $ac_n "checking for libc-friendly stddef.h""... $ac_c" 1>&4
if eval "test \"`echo '$''{'libc_cv_friendly_stddef'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&4
else
cat > conftest.$ac_ext <<EOF
#line 1070 "configure"
#line 1188 "configure"
#include "confdefs.h"
#define __need_size_t
#define __need_wchar_t
@ -1183,6 +1301,40 @@ EOF
fi
if test $elf != yes; then
echo $ac_n "checking for .init and .fini sections""... $ac_c" 1>&4
if eval "test \"`echo '$''{'libc_cv_have_initfini'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&4
else
cat > conftest.$ac_ext <<EOF
#line 1311 "configure"
#include "confdefs.h"
int main() { return 0; }
int t() {
asm (".section .init");
asm (".section .fini");
; return 0; }
EOF
if eval $ac_compile; then
rm -rf conftest*
libc_cv_have_initfini=yes
else
rm -rf conftest*
libc_cv_have_initfini=no
fi
rm -f conftest*
fi
echo "$ac_t""$libc_cv_have_initfini" 1>&4
if test $libc_cv_have_initfini = yes; then
cat >> confdefs.h <<\EOF
#define HAVE_INITFINI 1
EOF
fi
fi
# sysdeps configure fragments may set these with files to be linked below.
libc_link_dests=
@ -1214,7 +1366,7 @@ if test "$uname" = generic; then
fi
echo $ac_n "checking OS release for uname""... $ac_c" 1>&4
if eval "test \"`echo '$''{'libc_cv_uname_release'+set}'`\" = set"; then
if eval "test \"`echo '$''{'libc_cv_uname_release'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&4
else
kernel_release=`echo "$kernel_id" | sed 's/^[^0-9.]*\([0-9.]*\).*$/\1/'`
@ -1231,11 +1383,11 @@ else
fi
fi
echo "$ac_t""$libc_cv_uname_release" 1>&4
echo "$ac_t""$libc_cv_uname_release" 1>&4
uname_release="$libc_cv_uname_release"
echo $ac_n "checking OS version for uname""... $ac_c" 1>&4
if eval "test \"`echo '$''{'libc_cv_uname_version'+set}'`\" = set"; then
if eval "test \"`echo '$''{'libc_cv_uname_version'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&4
else
kernel_version=`echo "$kernel_id" | sed 's/^[^#]*#\([0-9]*\).*$/\1/'`
@ -1246,7 +1398,7 @@ else
fi
fi
echo "$ac_t""$libc_cv_uname_version" 1>&4
echo "$ac_t""$libc_cv_uname_version" 1>&4
uname_version="$libc_cv_uname_version"
config_uname=config-name.h:config-name.in
@ -1373,7 +1525,7 @@ do
echo "running \${CONFIG_SHELL-/bin/sh} $0 $ac_configure_args --no-create --no-recursion"
exec \${CONFIG_SHELL-/bin/sh} $0 $ac_configure_args --no-create --no-recursion ;;
-version | --version | --versio | --versi | --vers | --ver | --ve | --v)
echo "$CONFIG_STATUS generated by autoconf version 2.4"
echo "$CONFIG_STATUS generated by autoconf version 2.4.2"
exit 0 ;;
-help | --help | --hel | --he | --h)
echo "\$ac_cs_usage"; exit 0 ;;
@ -1400,6 +1552,18 @@ s%@LIBS@%$LIBS%g
s%@exec_prefix@%$exec_prefix%g
s%@prefix@%$prefix%g
s%@program_transform_name@%$program_transform_name%g
s%@bindir@%$bindir%g
s%@sbindir@%$sbindir%g
s%@libexecdir@%$libexecdir%g
s%@datadir@%$datadir%g
s%@sysconfdir@%$sysconfdir%g
s%@sharedstatedir@%$sharedstatedir%g
s%@localstatedir@%$localstatedir%g
s%@libdir@%$libdir%g
s%@includedir@%$includedir%g
s%@oldincludedir@%$oldincludedir%g
s%@infodir@%$infodir%g
s%@mandir@%$mandir%g
s%@host@%$host%g
s%@host_alias@%$host_alias%g
s%@host_cpu@%$host_cpu%g
@ -1417,6 +1581,7 @@ s%@CC@%$CC%g
s%@AR@%$AR%g
s%@RANLIB@%$RANLIB%g
s%@CPP@%$CPP%g
s%@libc_cv_have_initfini@%$libc_cv_have_initfini%g
s%@uname_sysname@%$uname_sysname%g
s%@uname_release@%$uname_release%g
s%@uname_version@%$uname_version%g

47
configure.in
View File

@ -1,6 +1,6 @@
dnl Process this file with autoconf to produce a configure script.
AC_REVISION([$CVSid$])
AC_PREREQ(2.2)dnl dnl Minimum Autoconf version required.
AC_PREREQ(2.4.2)dnl dnl Minimum Autoconf version required.
AC_INIT(features.h)
AC_CONFIG_HEADER(config.h)
@ -72,8 +72,7 @@ esac
# Compute the list of sysdep directories for this configuration.
sysdep_dir=$srcdir/sysdeps
AC_MSG_CHECKING(sysdep dirs)
AC_CACHE_VAL(libc_cv_sysdirs, [dnl
AC_CACHE_CHECK(sysdep dirs, libc_cv_sysdirs, [dnl
machine=$config_machine
vendor=$config_vendor
os=$config_os
@ -267,7 +266,6 @@ $name"
done
libc_cv_sysdirs="$sysnames"])
AC_SUBST(sysnames) sysnames="$libc_cv_sysdirs"
AC_MSG_RESULT(${sysnames})
AC_PROG_INSTALL
if test "$INSTALL" = "${srcdir}/install-sh"; then
@ -280,8 +278,7 @@ AC_CHECK_TOOL(AR, ar)
AC_CHECK_TOOL(RANLIB, ranlib, :)
AC_PROG_CPP
AC_MSG_CHECKING(signed size_t type)
AC_CACHE_VAL(libc_cv_signed_size_t, [dnl
AC_CACHE_CHECK(for signed size_t type, libc_cv_signed_size_t, [dnl
echo '#include <stddef.h>
FOOBAR __SIZE_TYPE__ FOOBAR' > conftest.c
if eval "$ac_cpp conftest.c 2>/dev/null" \
@ -291,7 +288,6 @@ else
libc_cv_signed_size_t=yes
fi
rm -f conftest*])
AC_MSG_RESULT($libc_cv_signed_size_t)
if test $libc_cv_signed_size_t = yes; then
dnl Do this by hand instead of AC_DEFINE so can add #undef to avoid warnings.
cat >> confdefs.h <<\EOF
@ -300,8 +296,7 @@ if test $libc_cv_signed_size_t = yes; then
EOF
fi
AC_MSG_CHECKING(libc-friendly stddef.h)
AC_CACHE_VAL(libc_cv_friendly_stddef, [dnl
AC_CACHE_CHECK(for libc-friendly stddef.h, libc_cv_friendly_stddef, [dnl
AC_TRY_COMPILE(dnl
[#define __need_size_t
#define __need_wchar_t
@ -314,14 +309,13 @@ AC_TRY_COMPILE(dnl
if (&size == NULL || &wchar == NULL) abort ();],
libc_cv_friendly_stddef=yes,
libc_cv_friendly_stddef=no)])
AC_MSG_RESULT($libc_cv_friendly_stddef)
if test $libc_cv_friendly_stddef = yes; then
config_vars="$config_vars
override stddef.h = # The installed <stddef.h> seems to be libc-friendly."
fi
AC_MSG_CHECKING(whether we need to use -P to assemble .S files)
AC_CACHE_VAL(libc_cv_need_minus_P, [dnl
AC_CACHE_CHECK(whether we need to use -P to assemble .S files,
libc_cv_need_minus_P, [dnl
cat > conftest.S <<EOF
#include "confdefs.h"
/* Nothing whatsoever. */
@ -332,14 +326,13 @@ else
libc_cv_need_minus_P=yes
fi
rm -f conftest*])
AC_MSG_RESULT($libc_cv_need_minus_P)
if test $libc_cv_need_minus_P = yes; then
config_vars="$config_vars
asm-CPPFLAGS = -P # The assembler can't grok cpp's # line directives."
fi
AC_MSG_CHECKING(for assembler global-symbol directive)
AC_CACHE_VAL(libc_cv_asm_global_directive, [dnl
AC_CACHE_CHECK(for assembler global-symbol directive,
libc_cv_asm_global_directive, [dnl
libc_cv_asm_global_directive=UNKNOWN
for ac_globl in .globl .global; do
cat > conftest.s <<EOF
@ -353,15 +346,13 @@ EOF
rm -f conftest*
test $libc_cv_asm_global_directive != UNKNOWN && break
done])
AC_MSG_RESULT($libc_cv_asm_global_directive)
if test $libc_cv_asm_global_directive = UNKNOWN; then
AC_MSG_ERROR(cannot determine asm global directive)
else
AC_DEFINE_UNQUOTED(ASM_GLOBAL_DIRECTIVE, ${libc_cv_asm_global_directive})
fi
AC_MSG_CHECKING(for .set assembler directive)
AC_CACHE_VAL(libc_cv_asm_set_directive, [dnl
AC_CACHE_CHECK(for .set assembler directive, libc_cv_asm_set_directive, [dnl
cat > conftest.s <<EOF
.text
foo: .long 0
@ -381,11 +372,21 @@ else
libc_cv_asm_set_directive=no
fi
rm -f conftest*])
AC_MSG_RESULT($libc_cv_asm_set_directive)
if test $libc_cv_asm_set_directive = yes; then
AC_DEFINE(HAVE_ASM_SET_DIRECTIVE)
fi
if test $elf != yes; then
AC_CACHE_CHECK(for .init and .fini sections, libc_cv_have_initfini,
[AC_TRY_COMPILE(, [asm (".section .init");
asm (".section .fini");],
libc_cv_have_initfini=yes,
libc_cv_have_initfini=no)])
AC_SUBST(libc_cv_have_initfini)dnl
if test $libc_cv_have_initfini = yes; then
AC_DEFINE(HAVE_INITFINI)
fi
fi
# sysdeps configure fragments may set these with files to be linked below.
libc_link_dests=
@ -428,8 +429,7 @@ AC_DEFUN(LIBC_KERNEL_ID, [dnl
fi
])dnl
AC_MSG_CHECKING(OS release for uname)
AC_CACHE_VAL(libc_cv_uname_release, [dnl
AC_CACHE_CHECK(OS release for uname, libc_cv_uname_release, [dnl
AC_REQUIRE([LIBC_KERNEL_ID])dnl
changequote(,)dnl
kernel_release=`echo "$kernel_id" | sed 's/^[^0-9.]*\([0-9.]*\).*$/\1/'`
@ -445,11 +445,9 @@ changequote([,])dnl
else
libc_cv_uname_release=unknown
fi])
AC_MSG_RESULT($libc_cv_uname_release)
uname_release="$libc_cv_uname_release"
AC_MSG_CHECKING(OS version for uname)
AC_CACHE_VAL(libc_cv_uname_version, [dnl
AC_CACHE_CHECK(OS version for uname, libc_cv_uname_version, [dnl
AC_REQUIRE([LIBC_KERNEL_ID])dnl
changequote(,)dnl
kernel_version=`echo "$kernel_id" | sed 's/^[^#]*#\([0-9]*\).*$/\1/'`
@ -459,7 +457,6 @@ changequote([,])dnl
else
libc_cv_uname_version=unknown
fi])
AC_MSG_RESULT($libc_cv_uname_version)
uname_version="$libc_cv_uname_version"
AC_SUBST(uname_sysname) AC_SUBST(uname_release) AC_SUBST(uname_version)dnl

7
csu/Makefile
View File

@ -48,6 +48,11 @@ else
# In the ELF universe, crt0.o is called crt1.o, and there are
# some additional bizarre files.
start-installed-name = crt1.o
have-initfini = yes
endif
ifeq (yes,$(have-initfini))
# These are the special initializer/finalizer files. They are always the
# first and last file in the link. crti.o ... crtn.o define the global
@ -82,11 +87,13 @@ endif
include ../Rules
ifndef start-installed-name-rule
# The startfile is installed under different names, so we just call our
# source file `start.c' and copy to the installed name after compiling.
$(objpfx)$(start-installed-name): $(objpfx)start.o
-rm -f $@
ln $< $@
endif
# These extra files are sometimes expected by system standard linking
# procedures, but we have nothing for them to do. So compile empty files.

6
munch-tmpl.c
View File

@ -29,12 +29,12 @@ __libc_init (argc, argv, envp)
{
CALLS
#ifdef HAVE_ELF
#ifdef HAVE_INITFINI
{
/* These functions are defined in crti.o to run the .init and .fini
sections, which are used for initializers in ELF. */
sections, which are used for initializers and finalizers. */
extern void _init __P ((void)), _fini __P ((void));
atexit (_fini); /* Arrange for _fini to run at exit. */
atexit (&_fini); /* Arrange for _fini to run at exit. */
_init ();
}
#endif

14
sysdeps/unix/sysv/sco3.2.4/Makefile
View File

@ -1,3 +1,17 @@
ifeq (posix,$(subdir))
sysdep_routines := $(sysdep_routines) pgrpsys sco_getgrp
endif
ifeq (csu,$(subdir))
# SCO uses crt1.o, and expects that single initializer file to also start
# the .init and .fini sections as crti.o normally does.
start-installed-name = crt1.o
start-installed-name-rule = yes
# Link together start.o and crti.o into the expected crt1.o.
# Now crt1.o as initializer and crtn.o as finalizer will work.
$(objpfx)crt1.o: $(objpfx)start.o $(objpfx)crti.o
$(CC) -nostdlib -nostartfiles -Wl,-r -o $@ $^
endif