blender/build_files/build_environment/patches/nasm.diff

diff --git a/output/macho.h b/output/macho.h
index 538c531e..fd5e8849 100644
--- a/output/macho.h
+++ b/output/macho.h
@@ -60,6 +60,8 @@
 #define LC_SEGMENT			0x1
 #define LC_SEGMENT_64			0x19
 #define LC_SYMTAB			0x2
+#define LC_VERSION_MIN_MACOSX		0x24
+#define LC_BUILD_VERSION		0x32
 
 /* Symbol type bits */
 #define N_STAB				0xe0
diff --git a/output/outmacho.c b/output/outmacho.c
index 08147883..de6ec902 100644
--- a/output/outmacho.c
+++ b/output/outmacho.c
@@ -38,6 +38,8 @@
 
 #include "compiler.h"
 
+#include <stdlib.h>
+
 #include "nctype.h"
 
 #include "nasm.h"
@@ -64,6 +66,8 @@
 #define MACHO_SYMCMD_SIZE		24
 #define MACHO_NLIST_SIZE		12
 #define MACHO_RELINFO_SIZE		8
+#define MACHO_BUILD_VERSION_SIZE	24
+#define MACHO_VERSION_MIN_MACOSX_SIZE	16
 
 #define MACHO_HEADER64_SIZE		32
 #define MACHO_SEGCMD64_SIZE		72
@@ -1224,6 +1228,46 @@ static void macho_layout_symbols (uint32_t *numsyms,
     }
 }
 
+static bool get_full_version_from_env (const char *variable_name,
+                                       int *r_major,
+                                       int *r_minor,
+                                       int *r_patch)  {
+    *r_major = 0;
+    *r_minor = 0;
+    *r_patch = 0;
+
+    const char *value = getenv(variable_name);
+    if (value == NULL || value[0] == '\0') {
+        return false;
+    }
+
+    const char *current_value = value;
+    const char *end_value = value + strlen(value);
+
+    char *endptr;
+
+    *r_major = strtol(current_value, &endptr, 10);
+    if (endptr >= end_value) {
+        return true;
+    }
+    current_value = endptr + 1;
+
+    *r_minor = strtol(current_value, &endptr, 10);
+    if (endptr >= end_value) {
+        return true;
+    }
+    current_value = endptr + 1;
+
+    *r_patch = strtol(current_value, &endptr, 10);
+
+    return true;
+}
+
+static bool need_version_min_macosx_command (void) {
+    return getenv("MACOSX_DEPLOYMENT_TARGET") &&
+           getenv("MACOSX_SDK_VERSION");
+}
+
 /* Calculate some values we'll need for writing later.  */
 
 static void macho_calculate_sizes (void)
@@ -1270,6 +1314,12 @@ static void macho_calculate_sizes (void)
         head_sizeofcmds += fmt.segcmd_size  + seg_nsects * fmt.sectcmd_size;
     }
 
+    /* LC_VERSION_MIN_MACOSX */
+    if (need_version_min_macosx_command()) {
+	++head_ncmds;
+	head_sizeofcmds += MACHO_VERSION_MIN_MACOSX_SIZE;
+    }
+
     if (nsyms > 0) {
 	++head_ncmds;
 	head_sizeofcmds += MACHO_SYMCMD_SIZE;
@@ -1653,6 +1703,33 @@ static void macho_write (void)
     else
         nasm_warn(WARN_OTHER, "no sections?");
 
+#define ENCODE_BUILD_VERSION(major, minor, patch) \
+    (((major) << 16) | ((minor) << 8) | (patch))
+
+    if (0) {
+        fwriteint32_t(LC_BUILD_VERSION, ofile); /* cmd == LC_BUILD_VERSION */
+        fwriteint32_t(MACHO_BUILD_VERSION_SIZE, ofile); /* size of load command */
+        fwriteint32_t(1, ofile);    /* platform */
+        fwriteint32_t(ENCODE_BUILD_VERSION(10, 13, 0), ofile);    /* minos, X.Y.Z is encoded in nibbles xxxx.yy.zz */
+        fwriteint32_t(ENCODE_BUILD_VERSION(10, 15, 4), ofile);    /* sdk, X.Y.Z is encoded in nibbles xxxx.yy.zz */
+        fwriteint32_t(0, ofile);    /* number of tool entries following this */
+    }
+
+    if (need_version_min_macosx_command()) {
+        int sdk_major, sdk_minor, sdk_patch;
+        get_full_version_from_env("MACOSX_SDK_VERSION", &sdk_major, &sdk_minor, &sdk_patch);
+
+        int version_major, version_minor, version_patch;
+        get_full_version_from_env("MACOSX_DEPLOYMENT_TARGET", &version_major, &version_minor, &version_patch);
+
+        fwriteint32_t(LC_VERSION_MIN_MACOSX, ofile); /* cmd == LC_VERSION_MIN_MACOSX */
+        fwriteint32_t(MACHO_VERSION_MIN_MACOSX_SIZE, ofile); /* size of load command */
+        fwriteint32_t(ENCODE_BUILD_VERSION(version_major, version_minor, version_patch), ofile);    /* minos, X.Y.Z is encoded in nibbles xxxx.yy.zz */
+        fwriteint32_t(ENCODE_BUILD_VERSION(sdk_major, sdk_minor, sdk_patch), ofile);    /* sdk, X.Y.Z is encoded in nibbles xxxx.yy.zz */
+    }
+
+#undef ENCODE_BUILD_VERSION
+
     if (nsyms > 0) {
         /* write out symbol command */
         fwriteint32_t(LC_SYMTAB, ofile); /* cmd == LC_SYMTAB */