radare2: don't fiddle with $CC.

srcpkgs/radare2/patches/trust-cc.patch

@@ -0,0 +1,13 @@
+--- configure.orig
++++ configure
+@@ -330,10 +330,6 @@
+ COMPILER=CC
+ printf "checking for c compiler... "
+ HAVE_LANG_C=1
+-if [ "${CROSSBUILD}" = 1 ]; then
+- (command -v ${HOST}-${CC} >/dev/null 2>&1)
+- if [ $? = 0 ]; then CC="${HOST}-${CC}"; fi
+-fi
+ echo "int main(int argc, char **argv){return 0;}" > test.c
+  (exec ${CC} ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} test.c >/dev/null 2>&1)
+ if [ $? = 0 ]; then echo ${CC}; else