From 132e052a959429bd844d5e1a485bfffd91ee6f00 Mon Sep 17 00:00:00 2001
From: Robert Clausecker <fuz@fuz.su>
Date: Fri, 8 Jul 2022 15:49:56 +0200
Subject: [PATCH] graphics/gegl: fix build on armv7
This applies the same patch that was previously applied to x11/babl
to adapt NEON detection on armv6/armv7 to FreeBSD's interfaces.
See also: PR #264942
See also: bb0f1da1920c245641a1f8a03dc17051631e66f0
---
.../gegl/files/patch-gegl_gegl-cpuaccel.c | 41 +++++++++++++++++++
1 file changed, 41 insertions(+)
create mode 100644 graphics/gegl/files/patch-gegl_gegl-cpuaccel.c
diff --git a/graphics/gegl/files/patch-gegl_gegl-cpuaccel.c b/graphics/gegl/files/patch-gegl_gegl-cpuaccel.c
new file mode 100644
index 000000000000..9566e2bfd1a1
--- /dev/null
+++ b/graphics/gegl/files/patch-gegl_gegl-cpuaccel.c
@@ -0,0 +1,41 @@
+--- gegl/gegl-cpuaccel.c.orig 2022-07-07 02:35:48 UTC
++++ gegl/gegl-cpuaccel.c
+@@ -552,32 +552,18 @@ arch_accel (void)
+ #include <fcntl.h>
+ #include <string.h>
+ #include <elf.h>
++#include <sys/auxv.h>
+
+ #define HAVE_ACCEL 1
+
+ static guint32
+ arch_accel (void)
+ {
+- /* TODO : add or hardcode the other ways it can be on arm, where
+- * this info comes from the system and not from running cpu
+- * instructions
+- */
+- int has_neon = 0;
+- int fd = open ("/proc/self/auxv", O_RDONLY);
+- Elf32_auxv_t auxv;
+- if (fd >= 0)
+- {
+- while (read (fd, &auxv, sizeof (Elf32_auxv_t)) == sizeof (Elf32_auxv_t))
+- {
+- if (auxv.a_type == AT_HWCAP)
+- {
+- if (auxv.a_un.a_val & 4096)
+- has_neon = 1;
+- }
+- }
+- close (fd);
+- }
+- return has_neon?GEGL_CPU_ACCEL_ARM_NEON:0;
++ unsigned long hwcap = 0;
++
++ elf_aux_info(AT_HWCAP, &hwcap, sizeof hwcap);
++
++ return hwcap & HWCAP_NEON ? GEGL_CPU_ACCEL_ARM_NEON : 0;
+ }
+
+ #endif /* ARCH_ARM */
--
2.35.2