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Index: sysdeps/powerpc/powerpc32/configure.in
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===================================================================
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--- libc/sysdeps/powerpc/powerpc32/configure.in (revision 7000)
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+++ libc/sysdeps/powerpc/powerpc32/configure.in (working copy)
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@@ -1,6 +1,8 @@
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GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
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# Local configure fragment for sysdeps/powerpc/powerpc32.
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+AC_PREREQ(2.50)
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+
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# See whether gas has R_PPC_REL16 relocs.
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AC_CACHE_CHECK(for R_PPC_REL16 gas support, libc_cv_ppc_rel16, [dnl
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cat > conftest.s <<\EOF
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Index: sysdeps/powerpc/powerpc32/elf/configure.in
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===================================================================
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--- libc/sysdeps/powerpc/powerpc32/elf/configure.in (revision 7000)
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+++ libc/sysdeps/powerpc/powerpc32/elf/configure.in (working copy)
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@@ -1,6 +1,8 @@
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GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
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# Local configure fragment for sysdeps/powerpc32/elf.
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+AC_PREREQ(2.50)
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+
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if test "$usetls" != no; then
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# Check for support of thread-local storage handling in assembler and
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# linker.
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Index: sysdeps/powerpc/configure.in
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===================================================================
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--- libc/sysdeps/powerpc/configure.in (revision 7000)
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+++ libc/sysdeps/powerpc/configure.in (working copy)
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@@ -1,6 +1,8 @@
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GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
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# Local configure fragment for sysdeps/powerpc.
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+AC_PREREQ(2.50)
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+
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# Accept binutils which knows about ".machine".
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AC_CACHE_CHECK(for .machine support, libc_cv_ppc_machine, [dnl
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cat > conftest.s <<\EOF
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Index: sysdeps/unix/sysv/linux/powerpc/configure.in
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===================================================================
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--- libc/sysdeps/unix/sysv/linux/powerpc/configure.in (revision 7000)
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+++ libc/sysdeps/unix/sysv/linux/powerpc/configure.in (working copy)
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@@ -2,6 +2,8 @@
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GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
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# Local configure fragment for sysdeps/unix/sysv/linux/powerpc/.
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+AC_PREREQ(2.50)
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+
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AC_CACHE_CHECK(whether $CC $CFLAGS -mlong-double-128 uses IBM extended format,
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libc_cv_mlong_double_128ibm, [dnl
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save_CFLAGS="$CFLAGS"
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Index: sysdeps/ieee754/ldbl-opt/configure.in
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===================================================================
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--- libc/sysdeps/ieee754/ldbl-opt/configure.in (revision 7000)
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+++ libc/sysdeps/ieee754/ldbl-opt/configure.in (working copy)
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@@ -2,6 +2,8 @@
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GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
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# Local configure fragment for sysdeps/ieee754/ldbl-opt/.
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+AC_PREREQ(2.50)
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+
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AC_CACHE_CHECK(whether $CC $CFLAGS supports -mlong-double-128,
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libc_cv_mlong_double_128, [dnl
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save_CFLAGS="$CFLAGS"
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Index: libidn/configure.in
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===================================================================
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--- libc/libidn/configure.in (revision 7000)
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+++ libc/libidn/configure.in (working copy)
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@@ -1,6 +1,8 @@
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dnl glibc configure fragment for libidn add-on
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GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
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+AC_PREREQ(2.50)
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+
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libc_add_on_canonical=
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libc_add_on_subdirs=.
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