Blame sysdeps/mach/hurd/configure.ac
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GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
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dnl We need this setting because of the need for PLT calls in ld.so.
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dnl See Roland's comment in
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dnl https://sourceware.org/bugzilla/show_bug.cgi?id=15605
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AC_DEFINE([NO_RTLD_HIDDEN])
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if test -n "$sysheaders"; then
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OLD_CPPFLAGS=$CPPFLAGS
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CPPFLAGS="$CPPFLAGS $SYSINCLUDES"
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fi
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AC_CACHE_CHECK(Hurd header version, libc_cv_hurd_version, [dnl
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AC_TRY_COMPILE(dnl
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[#include <hurd/version.h>], [
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#define NEED_VERSION 20020609
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#if HURD_INTERFACE_VERSION < NEED_VERSION
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# error Hurd version too old: HURD_INTERFACE_VERSION < NEED_VERSION
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#endif],
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libc_cv_hurd_version=ok,
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libc_cv_hurd_version=bad)])
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if test "x$libc_cv_hurd_version" != xok; then
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AC_MSG_ERROR(Hurd headers not installed or too old)
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fi
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if test -n "$sysheaders"; then
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CPPFLAGS=$OLD_CPPFLAGS
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fi
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dnl ifunc does not work yet for static binaries
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dnl http://www.gnu.org/software/hurd/open_issues/ifunc.html
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libc_cv_ld_gnu_indirect_function=no
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