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-rw-r--r--m4macros/ax_find_library.m44
1 files changed, 3 insertions, 1 deletions
diff --git a/m4macros/ax_find_library.m4 b/m4macros/ax_find_library.m4
index 26ce851929..8fdb00c5b9 100644
--- a/m4macros/ax_find_library.m4
+++ b/m4macros/ax_find_library.m4
@@ -146,7 +146,9 @@ AC_DEFUN([AX_FIND_LIBRARY], [
# Add to the runtime search path if the flag is not already added.
if test -n "${ISC_RPATH_FLAG}" && test "$(printf '%s\n' "${LIBRARY_LIBS}" | grep -Fc -e "${ISC_RPATH_FLAG}")" = 0; then
library_location=$(printf '%s\n' "${LIBRARY_LIBS}" | grep -Eo '\-L.*\b' | sed 's/-L//g')
- LIBRARY_LIBS="${LIBRARY_LIBS} ${ISC_RPATH_FLAG}${library_location}"
+ if test -n "${library_location}"; then
+ LIBRARY_LIBS="${LIBRARY_LIBS} ${ISC_RPATH_FLAG}${library_location}"
+ fi
fi
fi
])