@@ -34,6 +34,7 @@ AC_PROVIDE([AS_SHELL_FN_as_fn_set_status])dnl
AC_PROVIDE([AS_SHELL_FN_as_fn_exit])dnl
AC_PROVIDE([AS_SHELL_FN_as_fn_arith])dnl
AC_PROVIDE([AS_SHELL_FN_ac_fn_c_try_compile])dnl
+AC_PROVIDE([AS_SHELL_FN_ac_fn_c_try_cpp])dnl
define([AS_MESSAGE_LOG_FD],5)dnl
define([AS_MESSAGE_FD],6)dnl
dnl Ripped out of AS_INIT, which does more cruft we do not want.
@@ -1746,6 +1746,43 @@ fi
as_fn_set_status $ac_retval
} # ac_fn_c_try_link
+
+# ac_fn_c_try_cpp LINENO
+# ----------------------
+# Try to preprocess conftest.$ac_ext, and return whether this succeeded.
+ac_fn_c_try_cpp ()
+{
+ as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+ if { { ac_try="$ac_cpp conftest.$ac_ext"
+case "(($ac_try" in
+ *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+ *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+ (eval "$ac_cpp conftest.$ac_ext") 2>conftest.err
+ ac_status=$?
+ if test -s conftest.err; then
+ grep -v '^ *+' conftest.err >conftest.er1
+ cat conftest.er1 >&5
+ mv -f conftest.er1 conftest.err
+ fi
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; } > conftest.i && {
+ test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" ||
+ test ! -s conftest.err
+ }; then :
+ ac_retval=0
+else
+ $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ ac_retval=1
+fi
+ eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+ as_fn_set_status $ac_retval
+
+} # ac_fn_c_try_cpp
cat >config.log <<_ACEOF
This file contains any messages produced by compilers while
running configure, to aid debugging if configure makes a mistake.
@@ -3763,6 +3800,7 @@ else
fi
+
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
@@ -3777,12 +3815,12 @@ main ()
return 0;
}
_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_cpp "$LINENO"; then :
libc_cv_compiler_default_cet=yes
else
libc_cv_compiler_default_cet=no
fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f conftest.err conftest.i conftest.$ac_ext
# Check whether --enable-cet was given.
if test "${enable_cet+set}" = set; then :
@@ -5158,12 +5196,12 @@ main ()
return 0;
}
_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_cpp "$LINENO"; then :
libc_cv_compiler_ok=yes
else
libc_cv_compiler_ok=no
fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f conftest.err conftest.i conftest.$ac_ext
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_compiler_ok" >&5
$as_echo "$libc_cv_compiler_ok" >&6; }
@@ -466,10 +466,10 @@ AC_ARG_ENABLE([mathvec],
[build_mathvec=$enableval],
[build_mathvec=notset])
-AC_TRY_COMPILE([], [
+AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[]], [[
#ifndef __CET__
# error no CET compiler support
-#endif],
+#endif]])],
[libc_cv_compiler_default_cet=yes],
[libc_cv_compiler_default_cet=no])
@@ -1034,10 +1034,10 @@ AC_CHECK_PROG_VER(BISON, bison, --version,
[2.7*|[3-9].*|[1-9][0-9]*], critic_missing="$critic_missing bison")
AC_CACHE_CHECK([if $CC is sufficient to build libc], libc_cv_compiler_ok, [
-AC_TRY_COMPILE([], [
+AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[]], [[
#if !defined __GNUC__ || __GNUC__ < 6 || (__GNUC__ == 6 && __GNUC_MINOR__ < 2)
#error insufficient compiler
-#endif],
+#endif]])],
[libc_cv_compiler_ok=yes],
[libc_cv_compiler_ok=no])])
AS_IF([test $libc_cv_compiler_ok != yes],
@@ -1649,10 +1649,10 @@ dnl Check for silly hacked compilers predefining _FORTIFY_SOURCE.
dnl Since we are building the implementations of the fortified functions here,
dnl having the macro defined interacts very badly.
AC_CACHE_CHECK([for _FORTIFY_SOURCE predefine], libc_cv_predef_fortify_source,
-[AC_TRY_COMPILE([], [
+[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[
#ifdef _FORTIFY_SOURCE
# error bogon
-#endif],
+#endif]])],
[libc_cv_predef_fortify_source=no],
[libc_cv_predef_fortify_source=yes])])
if test $libc_cv_predef_fortify_source = yes; then
@@ -1720,7 +1720,7 @@ fi
AC_CACHE_CHECK(for __builtin_trap with no external dependencies,
libc_cv_builtin_trap, [dnl
libc_cv_builtin_trap=no
-AC_TRY_COMPILE([], [__builtin_trap ()], [
+AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[__builtin_trap ()]])],[
libc_undefs=`$NM -u conftest.o |
LC_ALL=C $AWK '$1 == "U" { print $2 | "sort -u"; next } { exit(1) }' \
2>&AS_MESSAGE_LOG_FD` || {
@@ -1729,7 +1729,7 @@ libc_undefs=`$NM -u conftest.o |
echo >&AS_MESSAGE_LOG_FD "libc_undefs='$libc_undefs'"
if test -z "$libc_undefs"; then
libc_cv_builtin_trap=yes
-fi])])
+fi],[])])
if test $libc_cv_builtin_trap = yes; then
AC_DEFINE([HAVE_BUILTIN_TRAP])
fi
@@ -6,13 +6,13 @@ AC_CACHE_CHECK(whether $CC $CFLAGS supports -mlong-double-128,
libc_cv_mlong_double_128, [dnl
save_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -mlong-double-128"
-AC_TRY_COMPILE(, [
+AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[
#ifndef __LONG_DOUBLE_128__
# error "compiler did not predefine __LONG_DOUBLE_128__ as expected"
#endif
-long double foobar (long double x) { return x; }],
- libc_cv_mlong_double_128=yes,
- libc_cv_mlong_double_128=no)
+long double foobar (long double x) { return x; }]])],
+ [libc_cv_mlong_double_128=yes],
+ [libc_cv_mlong_double_128=no])
CFLAGS="$save_CFLAGS"])
if test "$libc_cv_mlong_double_128" = no; then
AC_MSG_ERROR([this configuration requires -mlong-double-128 support])
@@ -1,42 +1,4 @@
-
-# ac_fn_c_try_cpp LINENO
-# ----------------------
-# Try to preprocess conftest.$ac_ext, and return whether this succeeded.
-ac_fn_c_try_cpp ()
-{
- as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
- if { { ac_try="$ac_cpp conftest.$ac_ext"
-case "(($ac_try" in
- *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
- *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-$as_echo "$ac_try_echo"; } >&5
- (eval "$ac_cpp conftest.$ac_ext") 2>conftest.err
- ac_status=$?
- if test -s conftest.err; then
- grep -v '^ *+' conftest.err >conftest.er1
- cat conftest.er1 >&5
- mv -f conftest.er1 conftest.err
- fi
- $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
- test $ac_status = 0; } > conftest.i && {
- test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" ||
- test ! -s conftest.err
- }; then :
- ac_retval=0
-else
- $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
- ac_retval=1
-fi
- eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
- as_fn_set_status $ac_retval
-
-} # ac_fn_c_try_cpp
-
# ac_fn_c_check_header_preproc LINENO HEADER VAR
# ----------------------------------------------
# Tests whether HEADER is present, setting the cache variable VAR accordingly.
@@ -25,8 +25,8 @@ dnl If not, compile with -Dfoo_t=bar_t.
dnl
AC_DEFUN([mach_TYPE_CHECK], [dnl
AC_CACHE_CHECK(for $1 in mach/mach_types.h, libc_cv_mach_$1,
-AC_TRY_COMPILE([#include <mach/mach_types.h>], [extern $1 foo;],
-libc_cv_mach_$1=$1, libc_cv_mach_$1=$2))
+AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <mach/mach_types.h>]], [[extern $1 foo;]])],
+[libc_cv_mach_$1=$1], [libc_cv_mach_$1=$2]))
if test [$]libc_cv_mach_$1 != $1; then
DEFINES="$DEFINES -D$1=$2"
fi])
@@ -42,10 +42,10 @@ dnl The creation_time field is a GNU Mach addition the other variants lack.
dnl
AC_CACHE_CHECK(for creation_time in task_basic_info,
libc_cv_mach_task_creation_time, [dnl
-AC_TRY_COMPILE([#include <mach/task_info.h>], [
+AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <mach/task_info.h>]], [[
extern struct task_basic_info *i;
long s = i->creation_time.seconds;
-], libc_cv_mach_task_creation_time=yes, libc_cv_mach_task_creation_time=no)])
+]])], [libc_cv_mach_task_creation_time=yes], [libc_cv_mach_task_creation_time=no])])
if test $libc_cv_mach_task_creation_time = no; then
AC_MSG_ERROR([you need Mach headers supporting task_info.creation_time])
fi
@@ -9,6 +9,7 @@ if test -n "$sysheaders"; then
fi
+
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking Hurd header version" >&5
$as_echo_n "checking Hurd header version... " >&6; }
if ${libc_cv_hurd_version+:} false; then :
@@ -29,12 +30,12 @@ main ()
return 0;
}
_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_cpp "$LINENO"; then :
libc_cv_hurd_version=ok
else
libc_cv_hurd_version=bad
fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f conftest.err conftest.i conftest.$ac_ext
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_hurd_version" >&5
$as_echo "$libc_cv_hurd_version" >&6; }
@@ -11,14 +11,14 @@ if test -n "$sysheaders"; then
fi
AC_CACHE_CHECK(Hurd header version, libc_cv_hurd_version, [dnl
-AC_TRY_COMPILE(dnl
-[#include <hurd/version.h>], [
+AC_PREPROC_IFELSE([AC_LANG_PROGRAM(dnl
+[[#include <hurd/version.h>]], [[
#define NEED_VERSION 20020609
#if HURD_INTERFACE_VERSION < NEED_VERSION
# error Hurd version too old: HURD_INTERFACE_VERSION < NEED_VERSION
-#endif],
- libc_cv_hurd_version=ok,
- libc_cv_hurd_version=bad)])
+#endif]])],
+ [libc_cv_hurd_version=ok],
+ [libc_cv_hurd_version=bad])])
if test "x$libc_cv_hurd_version" != xok; then
AC_MSG_ERROR(Hurd headers not installed or too old)
fi
@@ -301,6 +301,7 @@ then
fi
+
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC is sufficient to build libc on s390x" >&5
$as_echo_n "checking if $CC is sufficient to build libc on s390x... " >&6; }
if ${libc_cv_compiler_ok_on_s390x+:} false; then :
@@ -322,12 +323,12 @@ main ()
return 0;
}
_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_cpp "$LINENO"; then :
libc_cv_compiler_ok_on_s390x=yes
else
libc_cv_compiler_ok_on_s390x=no
fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f conftest.err conftest.i conftest.$ac_ext
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_compiler_ok_on_s390x" >&5
$as_echo "$libc_cv_compiler_ok_on_s390x" >&6; }
@@ -222,11 +222,11 @@ dnl overflow
dnl (https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98269)
AC_CACHE_CHECK([if $CC is sufficient to build libc on s390x],
libc_cv_compiler_ok_on_s390x, [
-AC_TRY_COMPILE([], [
+AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[]], [[
#if !defined __GNUC__ || __GNUC__ < 7 || (__GNUC__ == 7 && __GNUC_MINOR__ < 1)
#error insufficient compiler for building on s390x
#endif
-],
+]])],
[libc_cv_compiler_ok_on_s390x=yes],
[libc_cv_compiler_ok_on_s390x=no])])
if test "$libc_cv_compiler_ok_on_s390x" != yes; then
@@ -6,6 +6,7 @@ if test -n "$sysheaders"; then
CPPFLAGS="$CPPFLAGS $SYSINCLUDES"
fi
+
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking installed Linux kernel header files" >&5
$as_echo_n "checking installed Linux kernel header files... " >&6; }
if ${libc_cv_linux320+:} false; then :
@@ -25,12 +26,12 @@ main ()
return 0;
}
_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_cpp "$LINENO"; then :
libc_cv_linux320='3.2.0 or later'
else
libc_cv_linux320='missing or too old!'
fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f conftest.err conftest.i conftest.$ac_ext
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_linux320" >&5
$as_echo "$libc_cv_linux320" >&6; }
@@ -84,12 +85,12 @@ main ()
return 0;
}
_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_cpp "$LINENO"; then :
libc_minimum_kernel=ok
else
libc_minimum_kernel='too old!'
fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f conftest.err conftest.i conftest.$ac_ext
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_minimum_kernel" >&5
$as_echo "$libc_minimum_kernel" >&6; }
if test "$libc_minimum_kernel" = ok; then
@@ -8,12 +8,12 @@ if test -n "$sysheaders"; then
fi
define([libc_cv_linuxVER], [libc_cv_linux]patsubst(LIBC_LINUX_VERSION,[\.]))dnl
AC_CACHE_CHECK(installed Linux kernel header files, libc_cv_linuxVER, [dnl
-AC_TRY_COMPILE([#include <linux/version.h>
+AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[#include <linux/version.h>
#if !defined LINUX_VERSION_CODE || LINUX_VERSION_CODE < ]dnl
patsubst(LIBC_LINUX_VERSION,[^\([^.]*\)\.\([^.]*\)\.\([^.]*\)$],dnl
[ (\1 *65536+ \2 *256+ \3) /* \1.\2.\3 */])[
# error kernel headers missing or too old
-#endif], [],
+#endif]], [[]])],
[libc_cv_linuxVER='LIBC_LINUX_VERSION or later'],
[libc_cv_linuxVER='missing or too old!'])])
if test "$libc_cv_linuxVER" != 'LIBC_LINUX_VERSION or later'; then
@@ -52,10 +52,10 @@ changequote(,)dnl
decnum=`echo "$minimum_kernel.0.0.0" | sed 's/\([0-9]*\)\.\([0-9]*\)\.\([0-9]*\).*/(\1 * 65536 + \2 * 256 + \3)/'`;
abinum=`echo "$minimum_kernel.0.0.0" | sed 's/\([0-9]*\)\.\([0-9]*\)\.\([0-9]*\).*/\1,\2,\3/'`;
changequote([,])dnl
-AC_TRY_COMPILE([#include <linux/version.h>
+AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[#include <linux/version.h>
#if LINUX_VERSION_CODE < $decnum
# error kernel headers too old
-#endif], [], [libc_minimum_kernel=ok], [libc_minimum_kernel='too old!'])
+#endif]], [[]])], [libc_minimum_kernel=ok], [libc_minimum_kernel='too old!'])
AC_MSG_RESULT($libc_minimum_kernel)
if test "$libc_minimum_kernel" = ok; then
AC_DEFINE_UNQUOTED(__LINUX_KERNEL_VERSION, $decnum)
@@ -6,11 +6,11 @@ AC_CACHE_CHECK(whether $CC $CFLAGS -mlong-double-128 uses IBM extended format,
libc_cv_mlong_double_128ibm, [dnl
save_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -mlong-double-128"
-AC_TRY_COMPILE([#include <float.h>], [
+AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <float.h>]], [[
#if LDBL_MANT_DIG != 106
# error "compiler doesn't implement IBM extended format of long double"
#endif
-long double foobar (long double x) { return x; }],
+long double foobar (long double x) { return x; }]])],
libc_cv_mlong_double_128ibm=yes,
libc_cv_mlong_double_128ibm=no)
CFLAGS="$save_CFLAGS"])
@@ -20,11 +20,11 @@ if test "$libc_cv_mlong_double_128ibm" = no; then
libc_cv_mabi_ibmlongdouble, [dnl
save_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -mlong-double-128 -mabi=ibmlongdouble"
- AC_TRY_COMPILE([#include <float.h>], [
+ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <float.h>]], [[
#if LDBL_MANT_DIG != 106
# error "compiler doesn't implement IBM extended format of long double"
#endif
-long double foobar (long double x) { return x; }],
+long double foobar (long double x) { return x; }]])],
libc_cv_mabi_ibmlongdouble=yes,
libc_cv_mabi_ibmlongdouble=no)
CFLAGS="$save_CFLAGS"])