- acinclude: move HAVE_UCLIBC handling to configure.ac; fix handling

acinclude.m4

@@ -488,9 +488,6 @@ elif test "$BOXTYPE" = "mipsbox"; then
 	AC_DEFINE(HAVE_MIPS_HARDWARE, 1, [building for an mipsbox])
 fi
 
-# uclibc
-AM_CONDITIONAL(HAVE_UCLIBC, test "$targetlibdir/ld-uClibc.so.0")
-
 # generic
 if test "$BOXMODEL" = "generic"; then
 	AC_DEFINE(BOXMODEL_GENERIC, 1, [generic pc])

configure.ac

@@ -524,6 +524,9 @@ else
 	HWLIB_CFLAGS="$HWLIB_CFLAGS "'-I$(top_srcdir)/lib/hardware/coolstream'
 fi
 
+# uclibc
+AM_CONDITIONAL(HAVE_UCLIBC, $CC --version | grep -q "uclibc")
+
 # hack, so that framebuffer.h does not need to be included everywhere...
 AC_DEFINE(fb_pixel_t, uint32_t, [hack, so that framebuffer.h does not need to be included everywhere...])