diff options
| -rw-r--r-- | m4/fp_find_cxx_std_lib.m4 | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/m4/fp_find_cxx_std_lib.m4 b/m4/fp_find_cxx_std_lib.m4 index d0bb3195c6..68ac0e617d 100644 --- a/m4/fp_find_cxx_std_lib.m4 +++ b/m4/fp_find_cxx_std_lib.m4 @@ -19,7 +19,7 @@ unknown EOF AC_MSG_CHECKING([C++ standard library flavour]) if "$CXX" -E actest.cpp -o actest.out; then - if grep "libc++" actest.out; then + if grep "libc++" actest.out >/dev/null; then CXX_STD_LIB_LIBS="c++ c++abi" p="`"$CXX" --print-file-name libc++.so`" d="`dirname "$p"`" @@ -32,7 +32,7 @@ EOF CXX_STD_LIB_LIB_DIRS="$d" CXX_STD_LIB_DYN_LIB_DIRS="$d" AC_MSG_RESULT([libc++]) - elif grep "libstdc++" actest.out; then + elif grep "libstdc++" actest.out >/dev/null; then CXX_STD_LIB_LIBS="stdc++" p="`"$CXX" --print-file-name libstdc++.so`" d="`dirname "$p"`" |