diff -ruN mesa-26.1.4/include/c99_alloca.h mesa-26.1.4-banan_os/include/c99_alloca.h
--- mesa-26.1.4/include/c99_alloca.h	2026-07-01 17:16:13.000000000 +0300
+++ mesa-26.1.4-banan_os/include/c99_alloca.h	2026-07-05 12:36:39.805616590 +0300
@@ -35,7 +35,7 @@
 
 #  define alloca _alloca
 
-#elif defined(__sun) || defined(__CYGWIN__)
+#elif defined(__sun) || defined(__CYGWIN__) || defined(__banan_os__)
 
 #  include <alloca.h>
 
diff -ruN mesa-26.1.4/include/drm-uapi/drm.h mesa-26.1.4-banan_os/include/drm-uapi/drm.h
--- mesa-26.1.4/include/drm-uapi/drm.h	2026-07-01 17:16:13.000000000 +0300
+++ mesa-26.1.4-banan_os/include/drm-uapi/drm.h	2026-07-05 12:36:39.797829778 +0300
@@ -47,6 +47,41 @@
 #include <sys/types.h>
 #if defined(__GNU__)
 #include <sys/ioctl.h>
+#elif defined(__banan_os__)
+#define _IOC_NRBITS    8
+#define _IOC_TYPEBITS  8
+#define _IOC_SIZEBITS 14
+#define _IOC_DIRBITS   2
+
+#define _IOC_NRMASK   ((1 << _IOC_NRBITS  ) - 1)
+#define _IOC_TYPEMASK ((1 << _IOC_TYPEBITS) - 1)
+#define _IOC_SIZEMASK ((1 << _IOC_SIZEBITS) - 1)
+#define _IOC_DIRMASK  ((1 << _IOC_DIRBITS ) - 1)
+
+#define _IOC_NRSHIFT   0
+#define _IOC_TYPESHIFT (_IOC_NRSHIFT   + _IOC_NRBITS  )
+#define _IOC_SIZESHIFT (_IOC_TYPESHIFT + _IOC_TYPEBITS)
+#define _IOC_DIRSHIFT  (_IOC_SIZESHIFT + _IOC_SIZEBITS)
+
+#define _IOC_NONE  0U
+#define _IOC_WRITE 1U
+#define _IOC_READ  2U
+
+#define _IOC(dir, type, nr, size) \
+	(((dir)  << _IOC_DIRSHIFT ) | \
+	 ((size) << _IOC_SIZESHIFT) | \
+	 ((type) << _IOC_TYPESHIFT) | \
+	 ((nr)   << _IOC_NRSHIFT  ))
+
+#define _IO(type, nr)         _IOC(_IOC_NONE,            (type), (nr), 0)
+#define _IOR(type, nr, size)  _IOC(_IOC_READ,            (type), (nr), sizeof(size))
+#define _IOW(type, nr, size)  _IOC(_IOC_WRITE,           (type), (nr), sizeof(size))
+#define _IOWR(type, nr, size) _IOC(_IOC_READ|_IOC_WRITE, (type), (nr), sizeof(size))
+
+#define _IOC_DIR(nr)  (((nr) >> _IOC_DIRSHIFT ) & _IOC_DIRMASK )
+#define _IOC_TYPE(nr) (((nr) >> _IOC_TYPESHIFT) & _IOC_TYPEMASK)
+#define _IOC_NR(nr)   (((nr) >> _IOC_NRSHIFT  ) & _IOC_NRMASK  )
+#define _IOC_SIZE(nr) (((nr) >> _IOC_SIZESHIFT) & _IOC_SIZEMASK)
 #else
 #include <sys/ioccom.h>
 #endif
diff -ruN mesa-26.1.4/src/util/detect_os.h mesa-26.1.4-banan_os/src/util/detect_os.h
--- mesa-26.1.4/src/util/detect_os.h	2026-07-01 17:16:13.000000000 +0300
+++ mesa-26.1.4-banan_os/src/util/detect_os.h	2026-07-05 12:36:41.342028269 +0300
@@ -91,6 +91,10 @@
 #define DETECT_OS_POSIX 1
 #endif
 
+#if defined(__banan_os__)
+#define DETECT_OS_BANANOS 1
+#define DETECT_OS_POSIX 1
+#endif
 
 /*
  * Make sure DETECT_OS_* are always defined, so that they can be used with #if
@@ -146,5 +150,8 @@
 #ifndef DETECT_OS_MANAGARM
 #define DETECT_OS_MANAGARM 0
 #endif
+#ifndef DETECT_OS_BANANOS
+#define DETECT_OS_BANANOS 0
+#endif
 
 #endif /* DETECT_OS_H */
diff -ruN mesa-26.1.4/src/util/os_misc.c mesa-26.1.4-banan_os/src/util/os_misc.c
--- mesa-26.1.4/src/util/os_misc.c	2026-07-01 17:16:13.000000000 +0300
+++ mesa-26.1.4-banan_os/src/util/os_misc.c	2026-07-05 12:36:41.310790644 +0300
@@ -58,7 +58,7 @@
 #  include <unistd.h>
 #  include <log/log.h>
 #  include <cutils/properties.h>
-#elif DETECT_OS_LINUX || DETECT_OS_CYGWIN || DETECT_OS_SOLARIS || DETECT_OS_HURD || DETECT_OS_MANAGARM
+#elif DETECT_OS_LINUX || DETECT_OS_CYGWIN || DETECT_OS_SOLARIS || DETECT_OS_HURD || DETECT_OS_MANAGARM || DETECT_OS_BANANOS
 #  include <unistd.h>
 #elif DETECT_OS_OPENBSD || DETECT_OS_FREEBSD
 #  include <sys/resource.h>
@@ -470,6 +470,15 @@
 
    *size = ((uint64_t)vm_stats.free_count + (uint64_t)vm_stats.inactive_count) * PAGE_SIZE;
    return true;
+#elif DETECT_OS_BANANOS
+   const long avphys_pages = sysconf(_SC_AVPHYS_PAGES);
+   const long page_size = sysconf(_SC_PAGESIZE);
+
+   if (avphys_pages <= 0 || page_size <= 0)
+      return false;
+
+   *size = (uint64_t)avphys_pages * (uint64_t)page_size;
+   return true;
 #else
    return false;
 #endif
diff -ruN mesa-26.1.4/src/util/u_process.c mesa-26.1.4-banan_os/src/util/u_process.c
--- mesa-26.1.4/src/util/u_process.c	2026-07-01 17:16:13.000000000 +0300
+++ mesa-26.1.4-banan_os/src/util/u_process.c	2026-07-05 12:36:41.320229357 +0300
@@ -48,7 +48,7 @@
 #include <sys/sysctl.h>
 #endif
 
-#if DETECT_OS_LINUX
+#if DETECT_OS_LINUX || DETECT_OS_BANANOS
 #include <fcntl.h>
 #endif
 
@@ -163,6 +163,21 @@
    get_image_info(B_CURRENT_TEAM, &info);
    return strdup(info.name);
 }
+#elif DETECT_OS_BANANOS
+static char *
+__getProgramName()
+{
+   char *progname = NULL;
+   char buf[PATH_MAX];
+   if (readlink("/proc/self/exe", buf, sizeof(buf)) > 0) {
+      progname = strrchr(buf, '/');
+      if (progname)
+         progname++;
+      else
+         progname = buf;
+   }
+   return strdup(progname);
+}
 #else
 #define GET_PROGRAM_NAME_NOT_AVAILABLE
 #endif
@@ -269,7 +284,7 @@
       cmdline[size - 1] = 0;
       return true;
    }
-#elif DETECT_OS_LINUX
+#elif DETECT_OS_LINUX || DETECT_OS_BANANOS
    int f = open("/proc/self/cmdline", O_RDONLY);
    if (f != -1) {
       const int n = read(f, cmdline, size - 1);
diff -ruN mesa-26.1.4/src/util/u_thread.c mesa-26.1.4-banan_os/src/util/u_thread.c
--- mesa-26.1.4/src/util/u_thread.c	2026-07-01 17:16:13.000000000 +0300
+++ mesa-26.1.4-banan_os/src/util/u_thread.c	2026-07-05 12:36:41.338559292 +0300
@@ -71,7 +71,7 @@
 void u_thread_setname( const char *name )
 {
 #if defined(HAVE_PTHREAD)
-#if DETECT_OS_LINUX || DETECT_OS_CYGWIN || DETECT_OS_SOLARIS || defined(__GLIBC__) || DETECT_OS_MANAGARM || DETECT_OS_FUCHSIA
+#if DETECT_OS_LINUX || DETECT_OS_CYGWIN || DETECT_OS_SOLARIS || defined(__GLIBC__) || DETECT_OS_MANAGARM || DETECT_OS_FUCHSIA || DETECT_OS_BANANOS
    int ret = pthread_setname_np(pthread_self(), name);
    if (ret == ERANGE) {
       char buf[16];
@@ -150,7 +150,7 @@
 int64_t
 util_thread_get_time_nano(thrd_t thread)
 {
-#if defined(HAVE_PTHREAD) && !defined(__APPLE__) && !defined(__HAIKU__) && !defined(__managarm__)
+#if defined(HAVE_PTHREAD) && !defined(__APPLE__) && !defined(__HAIKU__) && !defined(__managarm__) && !defined(__banan_os__)
    struct timespec ts;
    clockid_t cid;