Commit 6eb7510072 for ffmpeg

commit 6eb75100726e1a580d93112ad7c4235455178959
Author: Niklas Haas <git@haasn.dev>
Date:   Thu Oct 22 19:59:09 2026 +0200

    swscale/uops_macros_gen: use a per-backend header include guard

    Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
    Signed-off-by: Niklas Haas <git@haasn.dev>

diff --git a/libswscale/uops_macros_gen.c b/libswscale/uops_macros_gen.c
index 7927de4f5c..6985451168 100644
--- a/libswscale/uops_macros_gen.c
+++ b/libswscale/uops_macros_gen.c
@@ -222,6 +222,7 @@ enum {

 typedef struct Backend {
     const char *name;
+    const char *guard; /* include guard for the generated C header */
     SwsUOpFlags flags[2]; /* all flag combinations used by the backend */
 } Backend;

@@ -229,6 +230,7 @@ static const Backend backends[] = {
     {
         /* Currently also covers all uops used by the x86 backend */
         .name  = "c",
+        .guard = "SWSCALE_UOPS_MACROS_H",
         .flags = {
             COMMON_FLAGS,
             COMMON_FLAGS | SWS_UOP_FLAG_PSHUFB | SWS_UOP_FLAG_FMA,
@@ -387,7 +389,8 @@ fail:
  * Returns 0 or a negative error code. On success, an allocated string is
  * returned via `out_str`, and must be av_free()'d by the caller.
  */
-static int print_macros(struct AVTreeNode *root, char **out_str)
+static int print_macros(struct AVTreeNode *root, const Backend *backend,
+                        char **out_str)
 {
     AVBPrint bprint, *const bp = &bprint;
     av_bprint_init(bp, 0, AV_BPRINT_SIZE_UNLIMITED);
@@ -397,10 +400,9 @@ static int print_macros(struct AVTreeNode *root, char **out_str)
 " * This file is automatically generated. Do not edit manually.\n"
 " * To regenerate, run: make fate-sws-uops-macros GEN=1\n"
 " */\n"
-"\n"
-"#ifndef SWSCALE_UOPS_MACROS_H\n"
-"#define SWSCALE_UOPS_MACROS_H\n"
-"\n"
+"\n");
+    av_bprintf(bp, "#ifndef %s\n#define %s\n\n", backend->guard, backend->guard);
+    BPRINT_STR(
 "/**\n"
 " * Boilerplate helper macros, for template-based backends. These will be\n"
 " * instantiated like this, with parameters in struct order:\n"
@@ -429,7 +431,7 @@ static int print_macros(struct AVTreeNode *root, char **out_str)
         }
     }

-    BPRINT_STR("\n#endif /* SWSCALE_UOPS_MACROS_H */");
+    av_bprintf(bp, "\n#endif /* %s */", backend->guard);
     return av_bprint_finalize(bp, out_str);
 }

@@ -520,7 +522,7 @@ int main(int argc, char **argv)
         return ret;

     char *macros = NULL;
-    ret = print_macros(root, &macros);
+    ret = print_macros(root, backend, &macros);
     if (ret >= 0)
         puts(macros);
     av_free(macros);