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* config.if (cxx_interface, libstdcxx_interface): Do not try to set
these if the appropriate directories and files to not exist.
From-SVN: r23166
88 lines
2.0 KiB
Plaintext
88 lines
2.0 KiB
Plaintext
#! /dev/null
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# Don't call it directly. This shell script fragment is called to
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# determine:
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#
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# 1. libstcxx_interface: the interface name for libstdc++.
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# 2. cxx_interface: the interface name for c++.
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# 3. libc_interface: the interface name for libc.
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#
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# Get the top level src dir.
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if [ -z "${topsrcdir}" -a -z "${top_srcdir}" ]
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then
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echo "Undefined top level src dir: topsrcdir and top_srcdir are empty" >&2
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exit 1
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fi
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if [ -n "${topsrcdir}" ]
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then
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if_topsrcdir=${topsrcdir}
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else
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if_topsrcdir=${top_srcdir}
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fi
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if [ -f ${if_topsrcdir}/libstdc++/Makefile.in ]; then
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# We check libstdc++ for libstdcxx_interface.
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libstdcxx_interface=`grep "^INTERFACE" ${if_topsrcdir}/libstdc++/Makefile.in | sed 's/INTERFACE[ ]*=[ ]*\(.*\)/\1/'`
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else
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libstdcxx_interface=
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fi
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if [ -f ${if_topsrcdir}/gcc/cp/Makefile.in ]; then
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# We check gcc/cp for cxx_interface.
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cxx_interface=`grep "^INTERFACE" ${if_topsrcdir}/gcc/cp/Makefile.in | sed 's/INTERFACE[ ]*=[ ]*\(.*\)/\1/'`
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else
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cxx_interface=
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fi
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# The trickiest part is libc_interface.
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if [ -z "${libc_interface}" ]
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then
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case ${target_os} in
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*linux*libc1*|*linux*libc5*)
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case ${target_alias} in
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*alpha*|*powerpc*)
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libc_interface=-libc5.9-
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;;
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*)
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libc_interface=-libc5-
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;;
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esac
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;;
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*linux*gnu*)
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# We have to work harder to figure it out.
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if [ ${target_alias} = ${build_alias} ]
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then
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dummy=if$$
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cat >$dummy.c <<EOF
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#include <features.h>
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main(argc, argv)
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int argc;
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char *argv[];
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{
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printf("%d\n", __GLIBC_MINOR__);
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return 0;
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}
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EOF
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${CC-cc} $dummy.c -o $dummy 2>/dev/null
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if [ "$?" = 0 ]
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then
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libc_interface=-libc6.`./$dummy`-
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rm -f $dummy.c $dummy
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else
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# It should never happen.
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echo "Cannot find the GNU C library minor version number." >&2
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rm -f $dummy.c $dummy
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exit 1
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fi
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else
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# Cross compiling. Assume glibc 2.1.
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libc_interface=-libc6.1-
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fi
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;;
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*)
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libc_interface=-
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;;
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esac
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fi
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