[SOLVED] regression on -current with ffmpeg

kaott · 08-28-2023, 09:32 PM

Appears to be related to the new vulkan-sdk package.

The config.log file reports:

Code:

gcc -Wl,--as-needed -Wl,-z,noexecstack -o /tmp/ffconf.xfIYNHUx/test /tmp/ffconf.xfIYNHUx/test.o -lglslang -lOSDependent -lHLSL -lOGLCompiler -lSPVRemapper -lSPIRV -lSPIRV-Tools-opt -lSPIRV-Tools -lpthread -lstdc++ -lm
/usr/bin/ld: cannot find -lOSDependent: No such file or directory
/usr/bin/ld: cannot find -lOGLCompiler: No such file or directory
collect2: error: ld returned 1 exit status
ERROR: spirv_compiler not found

Looking at the files installed by the old vulkan-sdk package there are both files:

Code:

-rw-r--r-- root/root      3308 2022-03-06 13:18 usr/lib64/libOGLCompiler.a
-rw-r--r-- root/root      4942 2022-03-06 13:18 usr/lib64/libOSDependent.a

Not sure if this is a vulkan-sdk packaging problem (looks like a lot of churn in the SlackBuild), or an ffmpeg problem that is fixed in a newer version.

lucabon · 08-29-2023, 04:39 AM

Quote:

Originally Posted by kaott

Appears to be related to the new vulkan-sdk package.

The config.log file reports:

Code:

gcc -Wl,--as-needed -Wl,-z,noexecstack -o /tmp/ffconf.xfIYNHUx/test /tmp/ffconf.xfIYNHUx/test.o -lglslang -lOSDependent -lHLSL -lOGLCompiler -lSPVRemapper -lSPIRV -lSPIRV-Tools-opt -lSPIRV-Tools -lpthread -lstdc++ -lm
/usr/bin/ld: cannot find -lOSDependent: No such file or directory
/usr/bin/ld: cannot find -lOGLCompiler: No such file or directory
collect2: error: ld returned 1 exit status
ERROR: spirv_compiler not found

The new glslang's cmake files do not intall static libraries if BUILD_SHARED_LIBS is defined:

Code:

--- glslang-sdk-1.3.204/OGLCompilersDLL/CMakeLists.txt  2022-03-06 20:05:33.000000000 +0100
+++ glslang-sdk-1.3.250/OGLCompilersDLL/CMakeLists.txt  2023-08-12 20:54:02.000000000 +0200
@@ -41,8 +41,19 @@
     source_group("Source" FILES ${SOURCES})
 endif(WIN32)
 
-if(ENABLE_GLSLANG_INSTALL)
-    install(TARGETS OGLCompiler EXPORT OGLCompilerTargets
-            ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR})
-       install(EXPORT OGLCompilerTargets DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake)
-endif(ENABLE_GLSLANG_INSTALL)
+if(ENABLE_GLSLANG_INSTALL AND NOT BUILD_SHARED_LIBS)
+    install(TARGETS OGLCompiler EXPORT glslang-targets)
+

Quote:

Originally Posted by kaott

Not sure if this is a vulkan-sdk packaging problem (looks like a lot of churn in the SlackBuild), or an ffmpeg problem that is fixed in a newer version.

It seems an ffmpeg configure problem: removing the static libraries from configure's tests solves the issue.

Code:

--- ffmpeg-5.1.3/configure.orig 2023-03-26 16:21:00.000000000 +0200
+++ ffmpeg-5.1.3/configure      2023-08-29 10:50:29.433307045 +0200
@@ -6551,10 +6551,10 @@
 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 libglslang && { check_lib spirv_compiler glslang/Include/glslang_c_interface.h glslang_initialize_process \
-                            -lglslang -lMachineIndependent -lOSDependent -lHLSL -lOGLCompiler -lGenericCodeGen \
+                            -lglslang -lMachineIndependent -lHLSL -lGenericCodeGen \
                             -lSPVRemapper -lSPIRV -lSPIRV-Tools-opt -lSPIRV-Tools -lpthread -lstdc++ -lm ||
                         require spirv_compiler glslang/Include/glslang_c_interface.h glslang_initialize_process \
-                            -lglslang -lOSDependent -lHLSL -lOGLCompiler \
+                            -lglslang -lHLSL \
                             -lSPVRemapper -lSPIRV -lSPIRV-Tools-opt -lSPIRV-Tools -lpthread -lstdc++ -lm; }
 enabled libgme            && { check_pkg_config libgme libgme gme/gme.h gme_new_emu ||
                                require libgme gme/gme.h gme_new_emu -lgme -lstdc++; }

Submitted the patch to ffmpeg-devel mailing list: https://ffmpeg.org/pipermail/ffmpeg-devel/