--- a/configure.in
+++ b/configure.in
@@ -1973,16 +1973,24 @@ ia64*-hpux*)
     i*86-*)
         if test "$HAVE_64BIT_OS"; then
             AC_MSG_ERROR([You are targeting i386 but using the 64-bit compiler.])
         fi
 
         if test $_MSC_VER -ge 1400; then
             LDFLAGS="$LDFLAGS -SAFESEH"
         fi
+
+        if test -n "$GNU_CC"; then
+            CFLAGS="$CFLAGS -mstackrealign -fno-keep-inline-dllexport"
+            CXXFLAGS="$CXXFLAGS -mstackrealign -fno-keep-inline-dllexport"
+        else
+            AC_DEFINE(HAVE_STDCALL)
+        fi
+
     	AC_DEFINE(_X86_)
 	;;
     alpha-*)
     	AC_DEFINE(_ALPHA_)
 	;;
     mips-*)
     	AC_DEFINE(_MIPS_)
 	;;