PR #20902 opened by Sebastian Ramacher (sebastinas)
URL: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/20902
Patch URL: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/20902.patch

Don't unconditionally link to libSPVRemapper which was removed in 16.0 in 
3a7f787

[Backport of f1e9032a2000b8b885cffd6fed8eacd47b37673f to release/8.0]


>From 22d0f109435450ea599f904ab6bccb0cec467273 Mon Sep 17 00:00:00 2001
From: Gyan Doshi <[email protected]>
Date: Sun, 28 Sep 2025 13:20:23 +0530
Subject: [PATCH] configure: unbreak glslang build

Don't unconditionally link to libSPVRemapper which was removed in 16.0 in 
3a7f787
---
 configure | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/configure b/configure
index 732de59292..1dc9a87909 100755
--- a/configure
+++ b/configure
@@ -7049,12 +7049,16 @@ enabled libfontconfig     && require_pkg_config 
libfontconfig fontconfig "fontco
 enabled libfreetype       && require_pkg_config libfreetype freetype2 
"ft2build.h FT_FREETYPE_H" FT_Init_FreeType
 enabled libfribidi        && require_pkg_config libfribidi fribidi fribidi.h 
fribidi_version_info
 enabled libharfbuzz       && require_pkg_config libharfbuzz harfbuzz hb.h 
hb_buffer_create
-enabled libglslang && { check_lib spirv_compiler 
glslang/Include/glslang_c_interface.h glslang_initialize_process \
+if enabled libglslang; then
+    spvremap="-lSPVRemapper"
+    require_headers "glslang/build_info.h" && { test_cpp_condition 
glslang/build_info.h "GLSLANG_VERSION_MAJOR >= 16" && spvremap="" ; }
+    check_lib spirv_compiler glslang/Include/glslang_c_interface.h 
glslang_initialize_process \
                             -lglslang -lMachineIndependent -lGenericCodeGen \
-                            -lSPVRemapper -lSPIRV -lSPIRV-Tools-opt 
-lSPIRV-Tools -lpthread -lstdc++ -lm ||
+                            ${spvremap} -lSPIRV -lSPIRV-Tools-opt 
-lSPIRV-Tools -lpthread -lstdc++ -lm ||
                         require spirv_compiler 
glslang/Include/glslang_c_interface.h glslang_initialize_process \
                             -lglslang -lMachineIndependent -lOSDependent 
-lHLSL -lOGLCompiler -lGenericCodeGen \
-                            -lSPVRemapper -lSPIRV -lSPIRV-Tools-opt 
-lSPIRV-Tools -lpthread -lstdc++ -lm ; }
+                            ${spvremap} -lSPIRV -lSPIRV-Tools-opt 
-lSPIRV-Tools -lpthread -lstdc++ -lm ;
+fi
 enabled libgme            && { check_pkg_config libgme libgme gme/gme.h 
gme_new_emu ||
                                require libgme gme/gme.h gme_new_emu -lgme 
-lstdc++; }
 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
-- 
2.49.1

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