From f803c8cbba85a3e36715c0007eba25a13969a046 Mon Sep 17 00:00:00 2001
From: Nicholas Marriott <nicholas.marriott@gmail.com>
Date: Mon, 12 Oct 2026 17:03:23 +0100
Subject: [PATCH] Remove test that depends on compiler.

---
 regress/image-sixel-buffer.c  | 72 -----------------------------------
 regress/image-sixel-buffer.mk | 15 --------
 regress/image-sixel-buffer.sh | 32 ----------------
 3 files changed, 119 deletions(-)
 delete mode 100644 regress/image-sixel-buffer.c
 delete mode 100644 regress/image-sixel-buffer.mk
 delete mode 100644 regress/image-sixel-buffer.sh

diff --git a/regress/image-sixel-buffer.c b/regress/image-sixel-buffer.c
deleted file mode 100644
index d6869bc55..000000000
--- a/regress/image-sixel-buffer.c
+++ /dev/null
@@ -1,72 +0,0 @@
-/* Exercise SIXEL output lengths at the encoder's allocation boundary. */
-
-#undef NDEBUG
-#include <assert.h>
-
-#include "../tmux.h"
-
-#ifdef ENABLE_IMAGES
-#include "../image-sixel.c"
-#include "../xmalloc.c"
-
-/* Abort if an allocation or formatting check fails. */
-void
-fatal(__unused const char *fmt, ...)
-{
-	abort();
-}
-
-/* Abort if an allocation or formatting check fails. */
-void
-fatalx(__unused const char *fmt, ...)
-{
-	abort();
-}
-
-/* Encode lengths below, at and above the initial 8192-byte allocation. */
-int
-main(void)
-{
-	struct sixel_image	 image = { 0 };
-	u_int			 colour, width, x;
-	size_t			 size;
-	char			*data;
-
-	colour = (2u << 25) | (100u << 16) | (100u << 8) | 100u;
-	image.sy = 2;
-	image.ncolours = 1;
-	image.used_colours = 1;
-	image.colours = &colour;
-	image.lines = xcalloc(2, sizeof *image.lines);
-
-	/* Headers and controls add 26 bytes to these uncompressed rasters. */
-	for (width = 8165; width <= 8167; width++) {
-		image.sx = width;
-		image.lines[0].sx = width;
-		image.lines[1].sx = width;
-		image.lines[0].pixels = xcalloc(width, sizeof(uint16_t));
-		image.lines[1].pixels = xcalloc(width, sizeof(uint16_t));
-
-		/* Alternate row bits so adjacent columns cannot be compressed. */
-		for (x = 0; x < width; x++)
-			image.lines[x % 2].pixels[x] = 1;
-		data = sixel_print(&image, NULL, &size);
-		assert(data != NULL);
-		assert(size == width + 26);
-		assert(data[size] == '\0');
-		assert(strlen(data) == size);
-		free(data);
-		free(image.lines[0].pixels);
-		free(image.lines[1].pixels);
-	}
-	free(image.lines);
-	return (0);
-}
-#else
-/* Skip the encoder check when image support is disabled. */
-int
-main(void)
-{
-	return (0);
-}
-#endif
diff --git a/regress/image-sixel-buffer.mk b/regress/image-sixel-buffer.mk
deleted file mode 100644
index e76d1457c..000000000
--- a/regress/image-sixel-buffer.mk
+++ /dev/null
@@ -1,15 +0,0 @@
-# Use the configured compiler and flags for the standalone encoder check.
-
-.PHONY: sixel-buffer-probe sixel-buffer-test
-
-sixel-buffer-probe:
-	$(CC) $(CFLAGS) $(LDFLAGS) -fsanitize=address \
-	    -o "$(SIXEL_TEST_DIR)/probe" "$(SIXEL_TEST_DIR)/probe.c"
-
-sixel-buffer-test:
-	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) \
-	    $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -UNDEBUG \
-	    -ffunction-sections -fdata-sections -fsanitize=address \
-	    -fno-omit-frame-pointer $(SIXEL_TEST_LDFLAGS) $(LDFLAGS) \
-	    -o "$(SIXEL_TEST_DIR)/test" "$(srcdir)/regress/image-sixel-buffer.c" \
-	    "$(srcdir)/compat/reallocarray.c"
diff --git a/regress/image-sixel-buffer.sh b/regress/image-sixel-buffer.sh
deleted file mode 100644
index 142a5715f..000000000
--- a/regress/image-sixel-buffer.sh
+++ /dev/null
@@ -1,32 +0,0 @@
-#!/bin/sh
-
-# Catch a trailing NUL written beyond an exactly full SIXEL output buffer.
-
-PATH=/bin:/usr/bin
-export PATH
-
-SIXEL_TEST_DIR=$(mktemp -d) || exit 1
-trap 'rm -rf "$SIXEL_TEST_DIR"' 0 1 15
-export SIXEL_TEST_DIR
-ASAN_OPTIONS=detect_leaks=0
-export ASAN_OPTIONS
-
-case $(uname -s) in
-Darwin) SIXEL_TEST_LDFLAGS=-Wl,-dead_strip ;;
-*) SIXEL_TEST_LDFLAGS=-Wl,--gc-sections ;;
-esac
-export SIXEL_TEST_LDFLAGS
-
-# Skip when the configured compiler or its runtime cannot use ASan.
-printf 'int main(void) { return 0; }\n' >"$SIXEL_TEST_DIR/probe.c"
-if ! make -s -C .. -f Makefile -f regress/image-sixel-buffer.mk \
-    sixel-buffer-probe >"$SIXEL_TEST_DIR/probe.log" 2>&1; then
-	exit 0
-fi
-if ! "$SIXEL_TEST_DIR/probe" >"$SIXEL_TEST_DIR/probe.log" 2>&1; then
-	exit 0
-fi
-
-make -s -C .. -f Makefile -f regress/image-sixel-buffer.mk \
-    sixel-buffer-test || exit 1
-"$SIXEL_TEST_DIR/test" || exit 1