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12de17db02
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16415 91177308-0d34-0410-b5e6-96231b3b80d8
23 lines
654 B
Plaintext
23 lines
654 B
Plaintext
#
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# Determine if the system can handle the -R option being passed to the linker.
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#
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# This macro is specific to LLVM.
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#
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AC_DEFUN([AC_LINK_USE_R],
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[
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AC_MSG_CHECKING([for compiler -Wl,-R<path> option])
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AC_LANG_PUSH([C])
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oldcflags="$CFLAGS"
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CFLAGS="$CFLAGS -Wl,-R."
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AC_LINK_IFELSE([int main() { return 0; }],[ac_cv_link_use_r=yes],[ac_cv_link_use_r=no])
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CFLAGS="$oldcflags"
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AC_LANG_POP([C])
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AC_MSG_RESULT($ac_cv_link_use_r)
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if test "$ac_cv_link_use_r" = yes
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then
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AC_DEFINE([HAVE_LINK_R],[1],[Define if you can use -Wl,-R. to pass -R. to the linker, in order to add the current directory to the dynamic linker search path.])
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fi
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])
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