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clang-wrapper: Guard against LD_LIBRARY_PATH.

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Petr Rockai 2013-09-07 11:02:50 +02:00
parent e3f2e2e10b
commit 7c3f07f97c
1 changed files with 6 additions and 0 deletions
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6
pkgs/build-support/clang-wrapper/clang-wrapper.sh
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@ -134,6 +134,12 @@ if test -n "$NIX_CLANG_WRAPPER_EXEC_HOOK"; then
source "$NIX_CLANG_WRAPPER_EXEC_HOOK"
fi
# We nuke LD_LIBRARY_PATH here, because clang dynamically links to LLVM.
# Unfortunately, when such clang is used to build LLVM again, it can get in
# trouble temporarily binding to the build-directory versions of the libraries
# (the buildsystem sets LD_LIBRARY_PATH). That is very undesirable and can
# cause mysterious failures.
LD_LIBRARY_PATH=
# Call the real `clang'. Filter out warnings from stderr about unused
# `-B' flags, since they confuse some programs. Deep bash magic to