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glibc: hide native c++ executable from build

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If glibc's configure finds the host c++ executable it assumes that
c++ should be enabled for the build. In case we don't have cross g++
built yet (ie, for headers), this causes the build to fail creating
C++ headers. So hide C++ from the build.

Signed-off-by: Dan McGregor <dan.mcgregor@usask.ca>
This commit is contained in:
Dan McGregor 2017-03-01 04:10:37 -06:00
parent a0ab14c4a7
commit c88621f740
1 changed files with 4 additions and 0 deletions
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4
scripts/build/libc/glibc.sh
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@ -247,6 +247,10 @@ do_libc_backend_once() {
[ -n "${CT_TOOLCHAIN_BUGURL}" ] && extra_config+=("--with-bugurl=${CT_TOOLCHAIN_BUGURL}")
touch config.cache
# Hide host C++ binary from configure
echo "ac_cv_prog_ac_ct_CXX=${CT_TARGET}-g++" >>config.cache
if [ "${CT_LIBC_GLIBC_FORCE_UNWIND}" = "y" ]; then
echo "libc_cv_forced_unwind=yes" >>config.cache
echo "libc_cv_c_cleanup=yes" >>config.cache