Add bcond_with gcc_stdint.

contrib/crossrpms/gcc/gccnewlib.add

@@ -33,6 +33,10 @@ BuildRequires:  %{_host_rpmprefix}gcc
 # Bug in gcc-4.5-20100318, doesn't build them on x86_84 hosts.
 %bcond_with plugin
 
+# EXPERIMENTAL: Use gcc's stdint.h instead of newlib's
+# Should be applicable to gcc >= 4.5.0
+%bcond_with gcc_stdint
+
 # versions of libraries, we conditionally bundle if necessary
 %global mpc_version	0.8.1
 %global mpfr_version	2.4.2

contrib/crossrpms/gcc/prep.add

@@ -33,6 +33,10 @@ cd ..
 %{?PATCH5:%patch5 -p0}
 %endif
 
+%if %{with gcc_stdint}
+sed -i -e '/thread_file=.*rtems/,/use_gcc_stdint=wrap/ { s/use_gcc_stdint=wrap/use_gcc_stdint=provide/}' gcc-%{gcc_pkgvers}/gcc/config.gcc
+%endif
+
 %if %build_newlib
 %setup -q -T -D -n %{name}-%{version} -a50
 cd newlib-%{newlib_version}
@@ -40,6 +44,9 @@ cd newlib-%{newlib_version}
 cd ..
   # Copy the C library into gcc's source tree
   ln -s ../newlib-%{newlib_version}/newlib gcc-%{gcc_pkgvers}
+%if %{with gcc_stdint}
+rm newlib-%{newlib_version}/newlib/libc/include/stdint.h
+%endif
 %endif
 
 %if 0%{?_build_mpfr}