Depends-on:
math
-log10 [test $HAVE_LOG10F = 0]
+extensions
+log10 [test $HAVE_LOG10F = 0 || test $REPLACE_LOG10F = 1]
configure.ac:
gl_FUNC_LOG10F
-if test $HAVE_LOG10F = 0; then
+if test $HAVE_LOG10F = 0 || test $REPLACE_LOG10F = 1; then
AC_LIBOBJ([log10f])
fi
gl_MATH_MODULE_INDICATOR([log10f])