Add a "fork" of musl as //fusl.

fusl/include/sys/mtio.h

+#ifndef _SYS_MTIO_H
+#define _SYS_MTIO_H
+
+#include <sys/types.h>
+#include <sys/ioctl.h>
+
+struct mtop {
+        short mt_op;
+        int mt_count;
+};
+
+#define _IOT_mtop _IOT (_IOTS (short), 1, _IOTS (int), 1, 0, 0)
+#define _IOT_mtget _IOT (_IOTS (long), 7, 0, 0, 0, 0)
+#define _IOT_mtpos _IOT_SIMPLE (long)
+#define _IOT_mtconfiginfo _IOT (_IOTS (long), 2, _IOTS (short), 3, _IOTS (long), 1)
+
+
+#define MTRESET 0
+#define MTFSF   1
+#define MTBSF   2
+#define MTFSR   3
+#define MTBSR   4
+#define MTWEOF  5
+#define MTREW   6
+#define MTOFFL  7
+#define MTNOP   8
+#define MTRETEN 9
+#define MTBSFM  10
+#define MTFSFM  11
+#define MTEOM   12
+#define MTERASE 13
+#define MTRAS1  14
+#define MTRAS2  15
+#define MTRAS3  16
+#define MTSETBLK 20
+#define MTSETDENSITY 21
+#define MTSEEK  22
+#define MTTELL  23
+#define MTSETDRVBUFFER 24
+#define MTFSS   25
+#define MTBSS   26
+#define MTWSM   27
+#define MTLOCK  28
+#define MTUNLOCK 29
+#define MTLOAD  30
+#define MTUNLOAD 31
+#define MTCOMPRESSION 32
+#define MTSETPART 33
+#define MTMKPART  34
+
+struct mtget {
+        long mt_type;
+        long mt_resid;
+        long mt_dsreg;
+        long mt_gstat;
+        long mt_erreg;
+        int mt_fileno;
+        int mt_blkno;
+};
+
+#define MT_ISUNKNOWN            0x01
+#define MT_ISQIC02              0x02
+#define MT_ISWT5150             0x03
+#define MT_ISARCHIVE_5945L2     0x04
+#define MT_ISCMSJ500            0x05
+#define MT_ISTDC3610            0x06
+#define MT_ISARCHIVE_VP60I      0x07
+#define MT_ISARCHIVE_2150L      0x08
+#define MT_ISARCHIVE_2060L      0x09
+#define MT_ISARCHIVESC499       0x0A
+#define MT_ISQIC02_ALL_FEATURES 0x0F
+#define MT_ISWT5099EEN24        0x11
+#define MT_ISTEAC_MT2ST         0x12
+#define MT_ISEVEREX_FT40A       0x32
+#define MT_ISDDS1               0x51
+#define MT_ISDDS2               0x52
+#define MT_ISSCSI1              0x71
+#define MT_ISSCSI2              0x72
+#define MT_ISFTAPE_UNKNOWN      0x800000
+#define MT_ISFTAPE_FLAG         0x800000
+
+struct mt_tape_info {
+        long t_type;
+        char *t_name;
+};
+
+#define MT_TAPE_INFO \
+{                                                                             \
+        {MT_ISUNKNOWN,          "Unknown type of tape device"},               \
+        {MT_ISQIC02,            "Generic QIC-02 tape streamer"},              \
+        {MT_ISWT5150,           "Wangtek 5150, QIC-150"},                     \
+        {MT_ISARCHIVE_5945L2,   "Archive 5945L-2"},                           \
+        {MT_ISCMSJ500,          "CMS Jumbo 500"},                             \
+        {MT_ISTDC3610,          "Tandberg TDC 3610, QIC-24"},                 \
+        {MT_ISARCHIVE_VP60I,    "Archive VP60i, QIC-02"},                     \
+        {MT_ISARCHIVE_2150L,    "Archive Viper 2150L"},                       \
+        {MT_ISARCHIVE_2060L,    "Archive Viper 2060L"},                       \
+        {MT_ISARCHIVESC499,     "Archive SC-499 QIC-36 controller"},          \
+        {MT_ISQIC02_ALL_FEATURES, "Generic QIC-02 tape, all features"},       \
+        {MT_ISWT5099EEN24,      "Wangtek 5099-een24, 60MB"},                  \
+        {MT_ISTEAC_MT2ST,       "Teac MT-2ST 155mb data cassette drive"},     \
+        {MT_ISEVEREX_FT40A,     "Everex FT40A, QIC-40"},                      \
+        {MT_ISSCSI1,            "Generic SCSI-1 tape"},                       \
+        {MT_ISSCSI2,            "Generic SCSI-2 tape"},                       \
+        {0, 0}                                                                \
+}
+
+struct mtpos {
+        long mt_blkno;
+};
+
+struct mtconfiginfo  {
+        long mt_type;
+        long ifc_type;
+        unsigned short irqnr;
+        unsigned short dmanr;
+        unsigned short port;
+        unsigned long debug;
+        unsigned have_dens:1;
+        unsigned have_bsf:1;
+        unsigned have_fsr:1;
+        unsigned have_bsr:1;
+        unsigned have_eod:1;
+        unsigned have_seek:1;
+        unsigned have_tell:1;
+        unsigned have_ras1:1;
+        unsigned have_ras2:1;
+        unsigned have_ras3:1;
+        unsigned have_qfa:1;
+        unsigned pad1:5;
+        char reserved[10];
+};
+
+#define MTIOCTOP _IOW('m', 1, struct mtop)
+#define MTIOCGET _IOR('m', 2, struct mtget)
+#define MTIOCPOS _IOR('m', 3, struct mtpos)
+
+#define MTIOCGETCONFIG  _IOR('m', 4, struct mtconfiginfo)
+#define MTIOCSETCONFIG  _IOW('m', 5, struct mtconfiginfo)
+
+#define GMT_EOF(x)              ((x) & 0x80000000)
+#define GMT_BOT(x)              ((x) & 0x40000000)
+#define GMT_EOT(x)              ((x) & 0x20000000)
+#define GMT_SM(x)               ((x) & 0x10000000)
+#define GMT_EOD(x)              ((x) & 0x08000000)
+#define GMT_WR_PROT(x)          ((x) & 0x04000000)
+#define GMT_ONLINE(x)           ((x) & 0x01000000)
+#define GMT_D_6250(x)           ((x) & 0x00800000)
+#define GMT_D_1600(x)           ((x) & 0x00400000)
+#define GMT_D_800(x)            ((x) & 0x00200000)
+#define GMT_DR_OPEN(x)          ((x) & 0x00040000)
+#define GMT_IM_REP_EN(x)        ((x) & 0x00010000)
+
+#define MT_ST_BLKSIZE_SHIFT     0
+#define MT_ST_BLKSIZE_MASK      0xffffff
+#define MT_ST_DENSITY_SHIFT     24
+#define MT_ST_DENSITY_MASK      0xff000000
+#define MT_ST_SOFTERR_SHIFT     0
+#define MT_ST_SOFTERR_MASK      0xffff
+#define MT_ST_OPTIONS           0xf0000000
+#define MT_ST_BOOLEANS          0x10000000
+#define MT_ST_SETBOOLEANS       0x30000000
+#define MT_ST_CLEARBOOLEANS     0x40000000
+#define MT_ST_WRITE_THRESHOLD   0x20000000
+#define MT_ST_DEF_BLKSIZE       0x50000000
+#define MT_ST_DEF_OPTIONS       0x60000000
+#define MT_ST_BUFFER_WRITES     0x1
+#define MT_ST_ASYNC_WRITES      0x2
+#define MT_ST_READ_AHEAD        0x4
+#define MT_ST_DEBUGGING         0x8
+#define MT_ST_TWO_FM            0x10
+#define MT_ST_FAST_MTEOM        0x20
+#define MT_ST_AUTO_LOCK         0x40
+#define MT_ST_DEF_WRITES        0x80
+#define MT_ST_CAN_BSR           0x100
+#define MT_ST_NO_BLKLIMS        0x200
+#define MT_ST_CAN_PARTITIONS    0x400
+#define MT_ST_SCSI2LOGICAL      0x800
+#define MT_ST_CLEAR_DEFAULT     0xfffff
+#define MT_ST_DEF_DENSITY       (MT_ST_DEF_OPTIONS | 0x100000)
+#define MT_ST_DEF_COMPRESSION   (MT_ST_DEF_OPTIONS | 0x200000)
+#define MT_ST_DEF_DRVBUFFER     (MT_ST_DEF_OPTIONS | 0x300000)
+#define MT_ST_HPLOADER_OFFSET 10000
+#ifndef DEFTAPE
+# define DEFTAPE        "/dev/tape"
+#endif
+
+#endif