--- BasiliskII/src/Windows/configure.ac	2006/04/20 22:36:26	1.5
+++ BasiliskII/src/Windows/configure.ac	2006/04/29 10:57:56	1.6
@@ -105,6 +105,9 @@ AC_CHECK_TYPES(loff_t)
 AC_CHECK_TYPES(caddr_t)
 AC_TYPE_SIZE_T
 
+dnl Checks for library functions.
+AC_CHECK_FUNCS(strdup strerror)
+
 dnl Define a macro that translates a yesno-variable into a C macro definition
 dnl to be put into the config.h file
 dnl $1 -- the macro to define
@@ -259,6 +262,19 @@ AC_EGREP_CPP(xyes,
 #endif
 ], [AC_MSG_RESULT(yes); HAVE_GCC30=yes], AC_MSG_RESULT(no))
 
+dnl Add -fno-strict-aliasing for slirp sources
+if [[ "x$HAVE_GCC30" = "xyes" ]]; then
+  SAVED_CFLAGS="$CFLAGS"
+  CFLAGS="$CFLAGS -fno-strict-aliasing"
+  AC_CACHE_CHECK([whether the compiler supports -fno-strict-aliasing],
+    ac_cv_gcc_no_strict_aliasing, [
+    AC_TRY_COMPILE([],[],
+      [ac_cv_gcc_no_strict_aliasing=yes; AC_SUBST(SLIRP_CFLAGS, "-fno-strict-aliasing")],
+      [ac_cv_gcc_no_strict_aliasing=no])
+  ])
+  CFLAGS="$SAVED_CFLAGS"
+fi
+
 dnl Select appropriate CPU source and REGPARAM define.
 ASM_OPTIMIZATIONS=none
 CPUSRCS="cpuemu1.cpp cpuemu2.cpp cpuemu3.cpp cpuemu4.cpp cpuemu5.cpp cpuemu6.cpp cpuemu7.cpp cpuemu8.cpp"