Use %{_target_cpu} to support both i386 and x86_64.

nmap.spec.in

@@ -53,12 +53,12 @@ both console and graphical versions are available.
 # compat-glibc and compat-gcc-34-c++.
 CC=gcc34; export CC
 CXX=g++34; export CXX
-CPPFLAGS="-I/usr/lib/i386-redhat-linux4E/include -B/usr/lib/i386-redhat-linux4E/lib/ $CPPFLAGS"; export CPPFLAGS
-CFLAGS="-I/usr/lib/i386-redhat-linux4E/include -B/usr/lib/i386-redhat-linux4E/lib/ $CFLAGS"; export CFLAGS
-CXXFLAGS="-I/usr/lib/i386-redhat-linux4E/include -B/usr/lib/i386-redhat-linux4E/lib/ $CXXFLAGS"; export CXXFLAGS
+CPPFLAGS="-I/usr/lib/%{_target_cpu}-redhat-linux4E/include -B/usr/lib/%{_target_cpu}-redhat-linux4E/lib/ $CPPFLAGS"; export CPPFLAGS
+CFLAGS="-I/usr/lib/%{_target_cpu}-redhat-linux4E/include -B/usr/lib/%{_target_cpu}-redhat-linux4E/lib/ $CFLAGS"; export CFLAGS
+CXXFLAGS="-I/usr/lib/%{_target_cpu}-redhat-linux4E/include -B/usr/lib/%{_target_cpu}-redhat-linux4E/lib/ $CXXFLAGS"; export CXXFLAGS
 # Settings LDFLAGS seems logical but leads to an error on C++ link:
 # /usr/lib/gcc/i386-redhat-linux/3.4.6/libgcc_s.so: undefined reference to `__stack_chk_fail@GLIBC_2.4'
-# LDFLAGS="-B/usr/lib/i386-redhat-linux4E/lib/ $LDFLAGS"; export LDFLAGS
+# LDFLAGS="-B/usr/lib/%{_target_cpu}-redhat-linux4E/lib/ $LDFLAGS"; export LDFLAGS
 
 %configure --with-openssl=%{openssl} --without-zenmap --with-ndiff --with-libdnet=included --with-libpcap=included --with-libpcre=included --with-liblua=included
 %if "%{buildncat}" == "0"