| |
| # ac_fn_c_check_header_compile LINENO HEADER VAR INCLUDES |
| # ------------------------------------------------------- |
| # Tests whether HEADER exists and can be compiled using the include files in |
| # INCLUDES, setting the cache variable VAR accordingly. |
| ac_fn_c_check_header_compile () |
| { |
| as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack |
| { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5 |
| $as_echo_n "checking for $2... " >&6; } |
| if eval \${$3+:} false; then : |
| $as_echo_n "(cached) " >&6 |
| else |
| cat confdefs.h - <<_ACEOF >conftest.$ac_ext |
| /* end confdefs.h. */ |
| $4 |
| #include <$2> |
| _ACEOF |
| if ac_fn_c_try_compile "$LINENO"; then : |
| eval "$3=yes" |
| else |
| eval "$3=no" |
| fi |
| rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext |
| fi |
| eval ac_res=\$$3 |
| { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5 |
| $as_echo "$ac_res" >&6; } |
| eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno |
| |
| } # ac_fn_c_check_header_compile |
| # This file is generated from configure.ac by Autoconf. DO NOT EDIT! |
| # Local configure fragment for sysdeps/unix/sysv/linux. |
| |
| # Don't bother trying to generate any glue code to be compatible with the |
| # existing system library, because we are the only system library. |
| inhibit_glue=yes |
| |
| if test -n "$sysheaders"; then |
| OLD_CPPFLAGS=$CPPFLAGS |
| CPPFLAGS="$CPPFLAGS $SYSINCLUDES" |
| fi |
| |
| |
| { $as_echo "$as_me:${as_lineno-$LINENO}: checking for grep that handles long lines and -e" >&5 |
| $as_echo_n "checking for grep that handles long lines and -e... " >&6; } |
| if ${ac_cv_path_GREP+:} false; then : |
| $as_echo_n "(cached) " >&6 |
| else |
| if test -z "$GREP"; then |
| ac_path_GREP_found=false |
| # Loop through the user's path and test for each of PROGNAME-LIST |
| as_save_IFS=$IFS; IFS=$PATH_SEPARATOR |
| for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin |
| do |
| IFS=$as_save_IFS |
| test -z "$as_dir" && as_dir=. |
| for ac_prog in grep ggrep; do |
| for ac_exec_ext in '' $ac_executable_extensions; do |
| ac_path_GREP="$as_dir/$ac_prog$ac_exec_ext" |
| { test -f "$ac_path_GREP" && $as_test_x "$ac_path_GREP"; } || continue |
| # Check for GNU ac_path_GREP and select it if it is found. |
| # Check for GNU $ac_path_GREP |
| case `"$ac_path_GREP" --version 2>&1` in |
| *GNU*) |
| ac_cv_path_GREP="$ac_path_GREP" ac_path_GREP_found=:;; |
| *) |
| ac_count=0 |
| $as_echo_n 0123456789 >"conftest.in" |
| while : |
| do |
| cat "conftest.in" "conftest.in" >"conftest.tmp" |
| mv "conftest.tmp" "conftest.in" |
| cp "conftest.in" "conftest.nl" |
| $as_echo 'GREP' >> "conftest.nl" |
| "$ac_path_GREP" -e 'GREP$' -e '-(cannot match)-' < "conftest.nl" >"conftest.out" 2>/dev/null || break |
| diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break |
| as_fn_arith $ac_count + 1 && ac_count=$as_val |
| if test $ac_count -gt ${ac_path_GREP_max-0}; then |
| # Best one so far, save it but keep looking for a better one |
| ac_cv_path_GREP="$ac_path_GREP" |
| ac_path_GREP_max=$ac_count |
| fi |
| # 10*(2^10) chars as input seems more than enough |
| test $ac_count -gt 10 && break |
| done |
| rm -f conftest.in conftest.tmp conftest.nl conftest.out;; |
| esac |
| |
| $ac_path_GREP_found && break 3 |
| done |
| done |
| done |
| IFS=$as_save_IFS |
| if test -z "$ac_cv_path_GREP"; then |
| as_fn_error $? "no acceptable grep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5 |
| fi |
| else |
| ac_cv_path_GREP=$GREP |
| fi |
| |
| fi |
| { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_GREP" >&5 |
| $as_echo "$ac_cv_path_GREP" >&6; } |
| GREP="$ac_cv_path_GREP" |
| |
| |
| { $as_echo "$as_me:${as_lineno-$LINENO}: checking for egrep" >&5 |
| $as_echo_n "checking for egrep... " >&6; } |
| if ${ac_cv_path_EGREP+:} false; then : |
| $as_echo_n "(cached) " >&6 |
| else |
| if echo a | $GREP -E '(a|b)' >/dev/null 2>&1 |
| then ac_cv_path_EGREP="$GREP -E" |
| else |
| if test -z "$EGREP"; then |
| ac_path_EGREP_found=false |
| # Loop through the user's path and test for each of PROGNAME-LIST |
| as_save_IFS=$IFS; IFS=$PATH_SEPARATOR |
| for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin |
| do |
| IFS=$as_save_IFS |
| test -z "$as_dir" && as_dir=. |
| for ac_prog in egrep; do |
| for ac_exec_ext in '' $ac_executable_extensions; do |
| ac_path_EGREP="$as_dir/$ac_prog$ac_exec_ext" |
| { test -f "$ac_path_EGREP" && $as_test_x "$ac_path_EGREP"; } || continue |
| # Check for GNU ac_path_EGREP and select it if it is found. |
| # Check for GNU $ac_path_EGREP |
| case `"$ac_path_EGREP" --version 2>&1` in |
| *GNU*) |
| ac_cv_path_EGREP="$ac_path_EGREP" ac_path_EGREP_found=:;; |
| *) |
| ac_count=0 |
| $as_echo_n 0123456789 >"conftest.in" |
| while : |
| do |
| cat "conftest.in" "conftest.in" >"conftest.tmp" |
| mv "conftest.tmp" "conftest.in" |
| cp "conftest.in" "conftest.nl" |
| $as_echo 'EGREP' >> "conftest.nl" |
| "$ac_path_EGREP" 'EGREP$' < "conftest.nl" >"conftest.out" 2>/dev/null || break |
| diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break |
| as_fn_arith $ac_count + 1 && ac_count=$as_val |
| if test $ac_count -gt ${ac_path_EGREP_max-0}; then |
| # Best one so far, save it but keep looking for a better one |
| ac_cv_path_EGREP="$ac_path_EGREP" |
| ac_path_EGREP_max=$ac_count |
| fi |
| # 10*(2^10) chars as input seems more than enough |
| test $ac_count -gt 10 && break |
| done |
| rm -f conftest.in conftest.tmp conftest.nl conftest.out;; |
| esac |
| |
| $ac_path_EGREP_found && break 3 |
| done |
| done |
| done |
| IFS=$as_save_IFS |
| if test -z "$ac_cv_path_EGREP"; then |
| as_fn_error $? "no acceptable egrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5 |
| fi |
| else |
| ac_cv_path_EGREP=$EGREP |
| fi |
| |
| fi |
| fi |
| { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_EGREP" >&5 |
| $as_echo "$ac_cv_path_EGREP" >&6; } |
| EGREP="$ac_cv_path_EGREP" |
| |
| |
| { $as_echo "$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_linux2619+:} false; then : |
| $as_echo_n "(cached) " >&6 |
| else |
| cat confdefs.h - <<_ACEOF >conftest.$ac_ext |
| /* end confdefs.h. */ |
| #include <linux/version.h> |
| #if !defined LINUX_VERSION_CODE || LINUX_VERSION_CODE < (2 *65536+ 6 *256+ 19) /* 2.6.19 */ |
| eat flaming death |
| #endif |
| _ACEOF |
| if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | |
| $EGREP "eat flaming death" >/dev/null 2>&1; then : |
| libc_cv_linux2619='TOO OLD!' |
| else |
| libc_cv_linux2619='2.6.19 or later' |
| fi |
| rm -f conftest* |
| |
| fi |
| { $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_linux2619" >&5 |
| $as_echo "$libc_cv_linux2619" >&6; } |
| if test "$libc_cv_linux2619" != '2.6.19 or later'; then |
| as_fn_error $? "GNU libc requires kernel header files from |
| Linux 2.6.19 or later to be installed before configuring. |
| The kernel header files are found usually in /usr/include/asm and |
| /usr/include/linux; make sure these directories use files from |
| Linux 2.6.19 or later. This check uses <linux/version.h>, so |
| make sure that file was built correctly when installing the kernel header |
| files. To use kernel headers not from /usr/include/linux, use the |
| configure option --with-headers." "$LINENO" 5 |
| fi |
| |
| # If the user gave a minimal version number test whether the available |
| # kernel headers are young enough. Additionally we have minimal |
| # kernel versions for some architectures. If a previous configure fragment |
| # set arch_minimum_kernel already, let that override our defaults here. |
| # Note that we presume such a fragment has set libc_cv_gcc_unwind_find_fde |
| # if appropriate too. |
| test -n "$arch_minimum_kernel" || |
| case "$machine" in |
| i386*) |
| libc_cv_gcc_unwind_find_fde=yes |
| arch_minimum_kernel=2.6.16 |
| ;; |
| x86_64/x32) |
| arch_minimum_kernel=3.4.0 |
| ;; |
| powerpc/powerpc32*) |
| libc_cv_gcc_unwind_find_fde=yes |
| arch_minimum_kernel=2.6.16 |
| ;; |
| s390/s390-32) |
| libc_cv_gcc_unwind_find_fde=yes |
| arch_minimum_kernel=2.6.16 |
| ;; |
| s390/s390-64) |
| libc_cv_gcc_unwind_find_fde=yes |
| arch_minimum_kernel=2.6.16 |
| ;; |
| sh*) |
| arch_minimum_kernel=2.6.16 |
| libc_cv_gcc_unwind_find_fde=yes |
| ;; |
| sparc/sparc64*) |
| libc_cv_gcc_unwind_find_fde=yes |
| arch_minimum_kernel=2.6.16 |
| ;; |
| sparc*) |
| libc_cv_gcc_unwind_find_fde=yes |
| arch_minimum_kernel=2.6.16 |
| ;; |
| *) |
| arch_minimum_kernel=2.6.16 |
| ;; |
| esac |
| if test -n "$minimum_kernel"; then |
| |
| user_version=$((`echo "$minimum_kernel.0.0.0" | sed 's/\([0-9]*\)\.\([0-9]*\)\.\([0-9]*\).*/\1 \* 65536 + \2 \* 256 + \3/'`)) |
| arch_version=$((`echo "$arch_minimum_kernel.0.0.0" | sed 's/\([0-9]*\)\.\([0-9]*\)\.\([0-9]*\).*/\1 \* 65536 + \2 \* 256 + \3/'`)) |
| |
| if test $user_version -lt $arch_version; then |
| { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: minimum kernel version reset to $arch_minimum_kernel" >&5 |
| $as_echo "$as_me: WARNING: minimum kernel version reset to $arch_minimum_kernel" >&2;} |
| minimum_kernel=$arch_minimum_kernel |
| fi |
| else |
| minimum_kernel=$arch_minimum_kernel |
| fi |
| |
| { $as_echo "$as_me:${as_lineno-$LINENO}: checking for kernel header at least $minimum_kernel" >&5 |
| $as_echo_n "checking for kernel header at least $minimum_kernel... " >&6; } |
| decnum=`echo "$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/'`; |
| cat confdefs.h - <<_ACEOF >conftest.$ac_ext |
| /* end confdefs.h. */ |
| #include <linux/version.h> |
| #if LINUX_VERSION_CODE < $decnum |
| eat flaming death |
| #endif |
| _ACEOF |
| if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | |
| $EGREP "eat flaming death" >/dev/null 2>&1; then : |
| libc_minimum_kernel='too old!' |
| else |
| libc_minimum_kernel=ok |
| fi |
| rm -f conftest* |
| |
| { $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_minimum_kernel" >&5 |
| $as_echo "$libc_minimum_kernel" >&6; } |
| if test "$libc_minimum_kernel" = ok; then |
| cat >>confdefs.h <<_ACEOF |
| #define __LINUX_KERNEL_VERSION $decnum |
| _ACEOF |
| |
| cat >>confdefs.h <<_ACEOF |
| #define __ABI_TAG_VERSION $abinum |
| _ACEOF |
| |
| else |
| as_fn_error $? "*** The available kernel headers are older than the requested |
| *** compatible kernel version" "$LINENO" 5 |
| fi |
| |
| # Until we start requiring 2.6.37+ headers, we need to check for the |
| # availability of linux/fanotify.h for testing purposes. |
| ac_fn_c_check_header_compile "$LINENO" "linux/fanotify.h" "ac_cv_header_linux_fanotify_h" "/* No default includes. */ |
| " |
| if test "x$ac_cv_header_linux_fanotify_h" = xyes; then : |
| $as_echo "#define HAVE_LINUX_FANOTIFY_H 1" >>confdefs.h |
| |
| fi |
| |
| |
| |
| # The result of the above test for the use of the FDE code is invalid if |
| # the user overrides the decision about the minimum ABI. |
| if test "$oldest_abi" != default && test "2.2.4" \< "$oldest_abi"; then |
| libc_cv_gcc_unwind_find_fde=no |
| fi |
| |
| if test -n "$sysheaders"; then |
| CPPFLAGS=$OLD_CPPFLAGS |
| fi |
| |
| # Under Linux the NPTL add-on should be available. |
| case $add_ons in |
| # It is available. Good. |
| *nptl*) |
| nptl_missing= |
| ;; |
| *) |
| nptl_missing=yes |
| ;; |
| esac |
| |
| if test "$nptl_missing"; then |
| if test $enable_sanity = yes; then |
| echo "\ |
| *** On GNU/Linux systems it is normal to compile GNU libc with the |
| *** \`nptl' add-on. Without that, the library will be |
| *** incompatible with normal GNU/Linux systems. |
| *** If you really mean to not use this add-on, run configure again |
| *** using the extra parameter \`--disable-sanity-checks'." |
| exit 1 |
| else |
| echo "\ |
| *** WARNING: Are you sure you do not want to use the \`nptl' |
| *** add-on?" |
| fi |
| fi |
| |
| if test "$prefix" = "/usr/local" -o "$prefix" = "/usr/local/" -o "$prefix" = "NONE"; then |
| if test $enable_sanity = yes; then |
| echo "\ |
| *** On GNU/Linux systems the GNU C Library should not be installed into |
| *** /usr/local since this might make your system totally unusable. |
| *** We strongly advise to use a different prefix. For details read the FAQ. |
| *** If you really mean to do this, run configure again using the extra |
| *** parameter \`--disable-sanity-checks'." |
| exit 1 |
| else |
| echo "\ |
| *** WARNING: Do you really want to install the GNU C Library into /usr/local? |
| *** This might make your system totally unusable, for details read the FAQ." |
| fi |
| fi |
| |
| |
| # One Linux we use ldconfig. |
| use_ldconfig=yes |
| |
| # We need some extensions to the `ldd' script. |
| |
| case "$machine" in |
| i[3456]86*) |
| ldd_rewrite_script=sysdeps/unix/sysv/linux/ldd-rewrite.sed |
| ;; |
| s390*) |
| ldd_rewrite_script=sysdeps/unix/sysv/linux/s390/ldd-rewrite.sed |
| ;; |
| sparc*) |
| ldd_rewrite_script=sysdeps/unix/sysv/linux/sparc/ldd-rewrite.sed |
| ;; |
| x86_64*) |
| ldd_rewrite_script=sysdeps/unix/sysv/linux/x86_64/ldd-rewrite.sed |
| ;; |
| powerpc*) |
| ldd_rewrite_script=sysdeps/unix/sysv/linux/powerpc/ldd-rewrite.sed |
| ;; |
| *) |
| ;; |
| esac |
| |
| |
| if test $host = $build; then |
| # If $prefix/include/{net,scsi} are symlinks, make install will |
| # clobber what they're linked to (probably a kernel tree). |
| # test -L ought to work on all Linux boxes. |
| if test "x$prefix" != xNONE; then |
| ac_prefix=$prefix |
| else |
| ac_prefix=$ac_default_prefix |
| fi |
| { $as_echo "$as_me:${as_lineno-$LINENO}: checking for symlinks in ${ac_prefix}/include" >&5 |
| $as_echo_n "checking for symlinks in ${ac_prefix}/include... " >&6; } |
| ac_message= |
| if test -L ${ac_prefix}/include/net; then |
| ac_message="$ac_message |
| ${ac_prefix}/include/net is a symlink" |
| fi |
| if test -L ${ac_prefix}/include/scsi; then |
| ac_message="$ac_message |
| ${ac_prefix}/include/scsi is a symlink" |
| fi |
| if test -n "$ac_message"; then |
| as_fn_error $? "$ac_message |
| \`make install' will destroy the target of the link(s). |
| Delete the links and re-run configure, or better still, move the entire |
| ${ac_prefix}/include directory out of the way." "$LINENO" 5 |
| else |
| { $as_echo "$as_me:${as_lineno-$LINENO}: result: ok" >&5 |
| $as_echo "ok" >&6; } |
| fi |
| fi |
| |
| # We have inlined syscalls. |
| $as_echo "#define HAVE_INLINED_SYSCALLS 1" >>confdefs.h |
| |