[meta-gnome,whinlatter] gimp: patch libunwind detection

Gimp 3.0.8's meson file detects the presence of libunwind incorrectly,
making it fail on some platforms, even when libunwind is explicitly disabled:

| <snip>i686-oe-linux-musl-ld: app/core/libappcore.a.p/gimpbacktrace-linux.c.o: in function `gimp_backtrace_get_address_info':
| /usr/src/debug/gimp/3.0.8/../sources/gimp-3.0.8/app/core/gimpbacktrace-linux.c:708:(.text+0xbd7): undefined reference to `_ULx86_init_local'

This backported patch fixes this.

Signed-off-by: Gyorgy Sarvari <skandigraun@gmail.com>
---
 ...ind-header-detection-on-non-macOS-pl.patch | 51 +++++++++++++++++++
 meta-gnome/recipes-gimp/gimp/gimp_3.0.8.bb    |  1 +
 2 files changed, 52 insertions(+)
 create mode 100644 meta-gnome/recipes-gimp/gimp/gimp/0001-meson-Fix-libunwind-header-detection-on-non-macOS-pl.patch

On Wed, Feb 4, 2026 at 4:53 AM Gyorgy Sarvari via
lists.openembedded.org <skandigraun=gmail.com@lists.openembedded.org>
wrote:
>
> Gimp 3.0.8's meson file detects the presence of libunwind incorrectly,
> making it fail on some platforms, even when libunwind is explicitly disabled:
>
> | <snip>i686-oe-linux-musl-ld: app/core/libappcore.a.p/gimpbacktrace-linux.c.o: in function `gimp_backtrace_get_address_info':
> | /usr/src/debug/gimp/3.0.8/../sources/gimp-3.0.8/app/core/gimpbacktrace-linux.c:708:(.text+0xbd7): undefined reference to `_ULx86_init_local'
>
> This backported patch fixes this.
>
> Signed-off-by: Gyorgy Sarvari <skandigraun@gmail.com>
> ---
>  ...ind-header-detection-on-non-macOS-pl.patch | 51 +++++++++++++++++++
>  meta-gnome/recipes-gimp/gimp/gimp_3.0.8.bb    |  1 +
>  2 files changed, 52 insertions(+)
>  create mode 100644 meta-gnome/recipes-gimp/gimp/gimp/0001-meson-Fix-libunwind-header-detection-on-non-macOS-pl.patch
>
> diff --git a/meta-gnome/recipes-gimp/gimp/gimp/0001-meson-Fix-libunwind-header-detection-on-non-macOS-pl.patch b/meta-gnome/recipes-gimp/gimp/gimp/0001-meson-Fix-libunwind-header-detection-on-non-macOS-pl.patch
> new file mode 100644
> index 0000000000..879529b80e
> --- /dev/null
> +++ b/meta-gnome/recipes-gimp/gimp/gimp/0001-meson-Fix-libunwind-header-detection-on-non-macOS-pl.patch
> @@ -0,0 +1,51 @@
> +From 8862f36fcec74152afeee2a99c0e04b84b6cf5b3 Mon Sep 17 00:00:00 2001
> +From: Bruno Lopes <brunvonlope@outlook.com>
> +Date: Sun, 25 Jan 2026 11:11:48 -0300
> +Subject: [PATCH] meson: Fix libunwind header detection on non-macOS platforms
> +
> +Closes: #15750
> +
> +Upstream-Status: Backport [https://gitlab.gnome.org/GNOME/gimp/-/commit/1aa51ca0637db88a4ea958d03fa6692e6ac0289b]
> +Signed-off-by: Gyorgy Sarvari <skandigraun@gmail.com>
> +---
> + meson.build | 17 ++++++++++-------
> + 1 file changed, 10 insertions(+), 7 deletions(-)
> +
> +diff --git a/meson.build b/meson.build
> +index 2192968..cfa1f71 100644
> +--- a/meson.build
> ++++ b/meson.build
> +@@ -731,11 +731,14 @@ conf.set('HAVE_LIBBACKTRACE', libbacktrace.found())
> + ## Check for libunwind
> + # In most platforms, unw_*() functions are in the libunwind library.
> + # In macOS, it is on libSystem (there we only need the SDK header).
> +-libunwind = ( get_option('libunwind')
> +-  ? dependency('libunwind', version: '>=1.1.0', required: false)
> +-  : no_dep
> +-)
> +-have_unwind = libunwind.found() or cc.has_header('libunwind.h', required: false)
> ++libunwind = no_dep
> ++if get_option('libunwind')
> ++  libunwind = dependency('libunwind', version: '>=1.1.0', required: false)
> ++  libunwind_h = platform_osx ? cc.has_header('libunwind.h', required: false) : false
> ++  have_unwind = libunwind.found() or libunwind_h
> ++else
> ++  have_unwind = false
> ++endif
> + conf.set('HAVE_LIBUNWIND', have_unwind ? 1 : false)
> +
> + ## Check for backtrace() API
> +@@ -758,11 +761,11 @@ if platform_windows
> + elif platform_linux
> +   if not have_execinfo_h
> +     dashboard_backtrace='no (missing: execinfo.h)'
> +-  elif not libbacktrace.found() and not libunwind.found()
> ++  elif not libbacktrace.found() and not have_unwind
> +     dashboard_backtrace='rough (missing: libbacktrace and libunwind)'
> +   elif not libbacktrace.found()
> +     dashboard_backtrace='partially detailed (missing: libbacktrace)'
> +-  elif not libunwind.found()
> ++  elif not have_unwind
> +     dashboard_backtrace='partially detailed (missing: libunwind)'
> +   else
> +     dashboard_backtrace='detailed'
> diff --git a/meta-gnome/recipes-gimp/gimp/gimp_3.0.8.bb b/meta-gnome/recipes-gimp/gimp/gimp_3.0.8.bb
> index 863d9a1667..860fb5d26b 100644
> --- a/meta-gnome/recipes-gimp/gimp/gimp_3.0.8.bb
> +++ b/meta-gnome/recipes-gimp/gimp/gimp_3.0.8.bb
> @@ -60,6 +60,7 @@ SRC_URI = "https://download.gimp.org/gimp/v3.0/${BP}.tar.xz \
>             file://0002-meson.build-reproducibility-fix.patch \
>             file://0001-meson.build-dont-check-for-lgi.patch \
>             file://0001-meson.build-require-iso-codes-native.patch \
> +           file://0001-meson-Fix-libunwind-header-detection-on-non-macOS-pl.patch \
>             "
>  SRC_URI[sha256sum] = "feb498acc01b26827cff1ff95aa8fb82cdd6a60d7abf773cfcd19abeafca3386"
>
>

Thanks for the patch, LGTM

Reviewed-by: Ankur Tyagi <ankur.tyagi85@gmail.com>

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