gentoo-overlay/net-analyzer/tcptrace/files/tcptrace-6.6.7-cross-compile.patch

--- a/configure.in
+++ b/configure.in
@@ -3,8 +3,6 @@
 
 AC_CANONICAL_SYSTEM
 
-AC_LBL_C_INIT(V_CCOPT, V_INCLS)
-
 dnl Checks for programs.
 AC_PROG_CC
 AC_PROG_MAKE_SET
@@ -43,13 +41,12 @@
 dnl check for the IPv6 routines inet_pton
 AC_CHECK_FUNCS(inet_pton)
 
-AC_MSG_CHECKING(how to print unsigned long long)
-AC_SUBST(FS_ULL)
 dnl AC_TRY_RUN is a test program that performs a run-time test to find out
 dnl the correct syntax to print unsigned long long ints in printf stmts.
 dnl If strcmp returns 0, we are on an enironment that uses %llu, otherwise
 dnl we are on a MacOSX environment that uses %qu
-AC_TRY_RUN([
+AC_CACHE_CHECK([how to print unsigned long long], ac_cv_unsigned_long_long_printf_format,
+  [AC_TRY_RUN([
 #include <stdio.h>
 
 #define NIX "%llu"
@@ -63,11 +60,17 @@
      exit (0);
   else
      exit (1);
-}],
-AC_DEFINE(USE_LLU)
-AC_MSG_RESULT(%llu), 
-AC_MSG_RESULT(%qu),
-AC_MSG_ERROR(can not run test program while cross compiling))
+}
+    ],
+    ac_cv_unsigned_long_long_printf_format=%llu,
+    ac_cv_unsigned_long_long_printf_format=%qu,
+    [AS_ECHO_N(["cross-comiling, assuming "])]
+    ac_cv_unsigned_long_long_printf_format=%llu
+  )]
+)
+AS_IF([test $ac_cv_unsigned_long_long_printf_format = %llu],
+  AC_DEFINE(USE_LLU)
+)
 
 dnl Grab standard includes under weird Linux versions
 dnl case "$target_os" in