The "test" brackets in the "AC_CACHE_VAL" shell script test
disappear. The second clause is entirely quoted, so why do
they disappear?
ALSO: I'm sure there is a better way to do this. My desire
is to add either `-R/path/to/libs' or `-Wl,-R/path/to/libs'
to the output for $(library-config ldflags), but only if I
can figure out the right spelling.
AC_DEFUN([AG_TEST_LDFLAGS],[
AC_MSG_CHECKING([whether runtime library dirs can be specified])
AC_CACHE_VAL([ag_cv_test_ldflags],[
ag_cv_test_ldflags=`exec 2> /dev/null
echo 'int main() { return 0; }' > conftest.$ac_ext
libs="${LIBS}"
LIBS="${LIBS} -Wl,-R/tmp"
if (eval $ac_link) > /dev/null 2>&1
then ; echo '-Wl,-R' ; exit 0 ; fi
LIBS="${libs} -R/tmp"
if (eval $ac_link) > /dev/null 2>&1
then ; echo '-R' ; exit 0 ; fi
exit 1`
if [ $? -ne 0 ]
then ag_cv_test_ldflags=no
elif [ -z "$ag_cv_test_ldflags" ]
then ag_cv_test_ldflags=no
fi
]) # end of CACHE_VAL of ag_cv_test_ldflags
AC_MSG_RESULT([${ag_cv_test_ldflags}])
if test "X${ag_cv_test_ldflags}" != Xno
then
AG_LDFLAGS="@S|@{ag_cv_test_ldflags}"
LIBS="@S|@{ag_cv_test_ldflags}@S|@{libdir} @S|@{LIBS}"
else
AG_LDFLAGS=''
fi
AC_SUBST([AG_LDFLAGS])
]) # end of AC_DEFUN of AG_TEST_LDFLAGS
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