--- a/sysdep.h
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+++ b/sysdep.h
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@@ -37,12 +37,14 @@ int tun_read(int fd, unsigned char *buf,
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int tun_get_hwaddr(int fd, char *dev, uint8_t *hwaddr);
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/***************************************************************************/
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-#if defined(__linux__) || defined(__GLIBC__)
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+#if defined(__GLIBC__) || defined(__UCLIBC__)
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#include <error.h>
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+#define HAVE_ERROR 1
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+#endif
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+#if defined(__linux__) || defined(__GLIBC__)
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#define HAVE_VASPRINTF 1
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#define HAVE_ASPRINTF 1
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-#define HAVE_ERROR 1
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#define HAVE_UNSETENV 1
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#define HAVE_SETENV 1
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#endif
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--- a/sysdep.c
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+++ b/sysdep.c
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@@ -59,7 +59,9 @@
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#if defined(__DragonFly__)
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#include <net/tun/if_tun.h>
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#elif defined(__linux__)
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-#include <linux/if_tun.h>
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+# if defined(__GLIBC__) || defined(__UCLIBC__)
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+# include <linux/if_tun.h>
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+# endif
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#elif defined(__APPLE__)
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/* no header for tun */
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#elif defined(__CYGWIN__)
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--- a/config.c
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+++ b/config.c
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@@ -28,6 +28,7 @@
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#include <unistd.h>
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#include <string.h>
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#include <errno.h>
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+#include <sys/ttydefaults.h>
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#include <sys/types.h>
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#include <sys/utsname.h>
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#include <sys/wait.h>
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