nixpkgs/pkgs/tools/filesystems/squashfs/darwin.patch

diff --git a/squashfs-tools/action.c b/squashfs-tools/action.c
index 4b06ccb..26365e7 100644
--- a/squashfs-tools/action.c
+++ b/squashfs-tools/action.c
@@ -38,6 +38,10 @@
 #include <limits.h>
 #include <errno.h>
 
+#ifndef FNM_EXTMATCH /* glibc extension */
+ #define FNM_EXTMATCH 0
+#endif
+
 #include "squashfs_fs.h"
 #include "mksquashfs.h"
 #include "action.h"
@@ -2284,9 +2288,12 @@ static char *get_start(char *s, int n)
 
 static int subpathname_fn(struct atom *atom, struct action_data *action_data)
 {
-	return fnmatch(atom->argv[0], get_start(strdupa(action_data->subpath),
+	char *path = strdup(action_data->subpath);
+	int is_match = fnmatch(atom->argv[0], get_start(path,
 		count_components(atom->argv[0])),
 		FNM_PATHNAME|FNM_PERIOD|FNM_EXTMATCH) == 0;
+	free(path);
+	return is_match;
 }
 
 /*
diff --git a/squashfs-tools/info.c b/squashfs-tools/info.c
index fe23d78..8efefe6 100644
--- a/squashfs-tools/info.c
+++ b/squashfs-tools/info.c
@@ -144,31 +144,22 @@ void dump_state()
 void *info_thrd(void *arg)
 {
 	sigset_t sigmask;
-	struct timespec timespec = { .tv_sec = 1, .tv_nsec = 0 };
-	int sig, waiting = 0;
+    int sig, err, waiting = 0;
 
 	sigemptyset(&sigmask);
 	sigaddset(&sigmask, SIGQUIT);
 	sigaddset(&sigmask, SIGHUP);
+    sigaddset(&sigmask, SIGALRM);
 
 	while(1) {
-		if(waiting)
-			sig = sigtimedwait(&sigmask, NULL, &timespec);
-		else
-			sig = sigwaitinfo(&sigmask, NULL);
+		err = sigwait(&sigmask, &sig);
 
-		if(sig == -1) {
+		if(err == -1) {
 			switch(errno) {
-			case EAGAIN:
-				/* interval timed out */
-				waiting = 0;
-				/* FALLTHROUGH */
 			case EINTR:
-				/* if waiting, the wait will be longer, but
-				   that's OK */
 				continue;
 			default:
-				BAD_ERROR("sigtimedwait/sigwaitinfo failed "
+				BAD_ERROR("sigwaitfailed "
 					"because %s\n", strerror(errno));
 			}
 		}
@@ -179,8 +170,12 @@ void *info_thrd(void *arg)
 			/* set one second interval period, if ^\ received
 			   within then, dump queue and cache status */
 			waiting = 1;
-		} else
+			alarm(1);
+		} else if (sig == SIGQUIT) {
 			dump_state();
+		} else if (sig == SIGALRM) {
+			waiting = 0;
+		}
 	}
 }
 
diff --git a/squashfs-tools/mksquashfs.c b/squashfs-tools/mksquashfs.c
index a45b77f..6d186ea 100644
--- a/squashfs-tools/mksquashfs.c
+++ b/squashfs-tools/mksquashfs.c
@@ -52,6 +52,10 @@
 #include <ctype.h>
 #include <sys/sysinfo.h>
 
+#ifndef FNM_EXTMATCH /* glibc extension */
+    #define FNM_EXTMATCH 0
+#endif
+
 #ifndef linux
 #define __BYTE_ORDER BYTE_ORDER
 #define __BIG_ENDIAN BIG_ENDIAN
@@ -4348,6 +4352,7 @@ void initialise_threads(int readq, int fragq, int bwriteq, int fwriteq,
 	sigemptyset(&sigmask);
 	sigaddset(&sigmask, SIGQUIT);
 	sigaddset(&sigmask, SIGHUP);
+	sigaddset(&sigmask, SIGALRM);
 	if(pthread_sigmask(SIG_BLOCK, &sigmask, NULL) != 0)
 		BAD_ERROR("Failed to set signal mask in intialise_threads\n");
 
@@ -5184,6 +5189,36 @@ int parse_mode(char *arg, mode_t *res)
 
 int get_physical_memory()
 {
+	int phys_mem;
+#ifndef linux
+	#ifdef HW_MEMSIZE
+		#define SYSCTL_PHYSMEM HW_MEMSIZE
+	#elif defined(HW_PHYSMEM64)
+		#define SYSCTL_PHYSMEM HW_PHYSMEM64
+	#else
+		#define SYSCTL_PHYSMEM HW_PHYSMEM
+	#endif
+
+	int mib[2];
+	uint64_t sysctl_physmem = 0;
+	size_t sysctl_len = sizeof(sysctl_physmem);
+
+	mib[0] = CTL_HW;
+	mib[1] = SYSCTL_PHYSMEM;
+
+	if(sysctl(mib, 2, &sysctl_physmem, &sysctl_len, NULL, 0) == 0) {
+		/* some systems use 32-bit values, work with what we're given */
+		if (sysctl_len == 4)
+			sysctl_physmem = *(uint32_t*)&sysctl_physmem;
+		phys_mem = sysctl_physmem >> 20;
+	} else {
+		ERROR_START("Failed to get amount of available "
+			"memory.");
+		ERROR_EXIT("  Defaulting to least viable amount\n");
+		phys_mem = SQUASHFS_LOWMEM;
+	}
+	#undef SYSCTL_PHYSMEM
+#else
 	/*
 	 * Long longs are used here because with PAE, a 32-bit
 	 * machine can have more than 4GB of physical memory
@@ -5193,7 +5228,6 @@ int get_physical_memory()
 	 */
 	long long num_pages = sysconf(_SC_PHYS_PAGES);
 	long long page_size = sysconf(_SC_PAGESIZE);
-	int phys_mem;
 
 	if(num_pages == -1 || page_size == -1) {
 		struct sysinfo sys;
@@ -5207,6 +5241,7 @@ int get_physical_memory()
 	}
 
 	phys_mem = num_pages * page_size >> 20;
+#endif
 
 	if(phys_mem < SQUASHFS_LOWMEM)
 		BAD_ERROR("Mksquashfs requires more physical memory than is "
diff --git a/squashfs-tools/mksquashfs.h b/squashfs-tools/mksquashfs.h
index 1beefef..88d0b5c 100644
--- a/squashfs-tools/mksquashfs.h
+++ b/squashfs-tools/mksquashfs.h
@@ -24,6 +24,7 @@
  * mksquashfs.h
  *
  */
+#include <pthread.h>
 
 struct dir_info {
 	char			*pathname;
diff --git a/squashfs-tools/pseudo.c b/squashfs-tools/pseudo.c
index 48e6b27..f8fd529 100644
--- a/squashfs-tools/pseudo.c
+++ b/squashfs-tools/pseudo.c
@@ -30,6 +30,7 @@
 #include <errno.h>
 #include <string.h>
 #include <stdlib.h>
+#include <sys/stat.h>
 #include <sys/types.h>
 #include <sys/wait.h>
 #include <sys/stat.h>
diff --git a/squashfs-tools/read_xattrs.c b/squashfs-tools/read_xattrs.c
index 4debedf..3257c30 100644
--- a/squashfs-tools/read_xattrs.c
+++ b/squashfs-tools/read_xattrs.c
@@ -39,13 +39,13 @@
 #include <endian.h>
 #endif
 
+#include <stdlib.h>
+
 #include "squashfs_fs.h"
 #include "squashfs_swap.h"
 #include "xattr.h"
 #include "error.h"
 
-#include <stdlib.h>
-
 extern int read_fs_bytes(int, long long, int, void *);
 extern int read_block(int, long long, long long *, int, void *);
 
diff --git a/squashfs-tools/unsquashfs.c b/squashfs-tools/unsquashfs.c
index 727f1d5..00615ce 100644
--- a/squashfs-tools/unsquashfs.c
+++ b/squashfs-tools/unsquashfs.c
@@ -32,8 +32,13 @@
 #include "stdarg.h"
 #include "fnmatch_compat.h"
 
+#ifndef linux
+#include <sys/sysctl.h>
+#else
 #include <sys/sysinfo.h>
 #include <sys/sysmacros.h>
+#endif
+
 #include <sys/types.h>
 #include <sys/time.h>
 #include <sys/resource.h>
@@ -2235,6 +2240,7 @@ void initialise_threads(int fragment_buffer_size, int data_buffer_size)
 	sigemptyset(&sigmask);
 	sigaddset(&sigmask, SIGQUIT);
 	sigaddset(&sigmask, SIGHUP);
+	sigaddset(&sigmask, SIGALRM);
 	if(pthread_sigmask(SIG_BLOCK, &sigmask, NULL) != 0)
 		EXIT_UNSQUASH("Failed to set signal mask in initialise_threads"
 			"\n");
diff --git a/squashfs-tools/unsquashfs.h b/squashfs-tools/unsquashfs.h
index 934618b..329eb9e 100644
--- a/squashfs-tools/unsquashfs.h
+++ b/squashfs-tools/unsquashfs.h
@@ -46,6 +46,10 @@
 #include <sys/ioctl.h>
 #include <sys/time.h>
 
+#ifndef FNM_EXTMATCH /* glibc extension */
+    #define FNM_EXTMATCH 0
+#endif
+
 #ifndef linux
 #define __BYTE_ORDER BYTE_ORDER
 #define __BIG_ENDIAN BIG_ENDIAN
diff --git a/squashfs-tools/unsquashfs_info.c b/squashfs-tools/unsquashfs_info.c
index c8e2b9b..7d4f7af 100644
--- a/squashfs-tools/unsquashfs_info.c
+++ b/squashfs-tools/unsquashfs_info.c
@@ -97,31 +97,22 @@ void dump_state()
 void *info_thrd(void *arg)
 {
 	sigset_t sigmask;
-	struct timespec timespec = { .tv_sec = 1, .tv_nsec = 0 };
-	int sig, waiting = 0;
+	int sig, err, waiting = 0;
 
 	sigemptyset(&sigmask);
 	sigaddset(&sigmask, SIGQUIT);
 	sigaddset(&sigmask, SIGHUP);
+	sigaddset(&sigmask, SIGALRM);
 
 	while(1) {
-		if(waiting)
-			sig = sigtimedwait(&sigmask, NULL, &timespec);
-		else
-			sig = sigwaitinfo(&sigmask, NULL);
+		err = sigwait(&sigmask, &sig);
 
-		if(sig == -1) {
+		if(err == -1) {
 			switch(errno) {
-			case EAGAIN:
-				/* interval timed out */
-				waiting = 0;
-				/* FALLTHROUGH */
 			case EINTR:
-				/* if waiting, the wait will be longer, but
-				   that's OK */
 				continue;
 			default:
-				BAD_ERROR("sigtimedwait/sigwaitinfo failed "
+				BAD_ERROR("sigwait failed "
 					"because %s\n", strerror(errno));
 			}
 		}
@@ -133,8 +124,12 @@ void *info_thrd(void *arg)
 			/* set one second interval period, if ^\ received
 			   within then, dump queue and cache status */
 			waiting = 1;
-		} else
+			alarm(1);
+		} else if (sig == SIGQUIT) {
 			dump_state();
+		} else if (sig == SIGALRM) {
+			waiting = 0;
+		}
 	}
 }
 
diff --git a/squashfs-tools/unsquashfs_xattr.c b/squashfs-tools/unsquashfs_xattr.c
index 7742dfe..26ccd39 100644
--- a/squashfs-tools/unsquashfs_xattr.c
+++ b/squashfs-tools/unsquashfs_xattr.c
@@ -27,6 +27,11 @@
 
 #include <sys/xattr.h>
 
+#ifdef XATTR_NOFOLLOW /* Apple's xattrs */
+    #define lsetxattr(path_, name_, val_, sz_, flags_) \
+        setxattr(path_, name_, val_, sz_, 0, flags_ | XATTR_NOFOLLOW)
+#endif
+
 #define NOSPACE_MAX 10
 
 extern int root_process;
diff --git a/squashfs-tools/xattr.c b/squashfs-tools/xattr.c
index 64dfd82..9c4532d 100644
--- a/squashfs-tools/xattr.c
+++ b/squashfs-tools/xattr.c
@@ -22,6 +22,14 @@
  * xattr.c
  */
 
+#ifndef linux
+#define __BYTE_ORDER BYTE_ORDER
+#define __BIG_ENDIAN BIG_ENDIAN
+#define __LITTLE_ENDIAN LITTLE_ENDIAN
+#else
+#include <endian.h>
+#endif
+
 #define TRUE 1
 #define FALSE 0
 
@@ -36,6 +44,13 @@
 #include <stdlib.h>
 #include <sys/xattr.h>
 
+#ifdef XATTR_NOFOLLOW /* Apple's xattrs */
+    #define llistxattr(path_, buf_, sz_) \
+        listxattr(path_, buf_, sz_, XATTR_NOFOLLOW)
+    #define lgetxattr(path_, name_, val_, sz_) \
+        getxattr(path_, name_, val_, sz_, 0, XATTR_NOFOLLOW)
+#endif
+
 #include "squashfs_fs.h"
 #include "squashfs_swap.h"
 #include "mksquashfs.h"
-- 
2.23.0