[vlc-commits] [Git][videolan/vlc][master] qt: enable --gc-sections / -dead_strip linker flags

[Steve Lhomme (@robUx4)]

Steve Lhomme pushed to branch master at VideoLAN / VLC


Commits:
bde4f02e by Steve Lhomme at 2026-06-06T14:28:58+00:00
qt: enable --gc-sections / -dead_strip linker flags

Qt builds by default with -ffunction-sections -fdata-sections when supported by the compiler.
By using the proper linker flag we can reduce the size of the binary.

- - - - -


2 changed files:

- modules/gui/qt/Makefile.am
- modules/gui/qt/meson.build


Changes:

=====================================
modules/gui/qt/Makefile.am
=====================================
@@ -70,7 +70,7 @@ if HAVE_LIBATOMIC
 libqt_plugin_la_CXXFLAGS += -DQT_HAS_LIBATOMIC
 libqt_plugin_la_LIBADD += -latomic
 endif
-libqt_plugin_la_LDFLAGS = $(AM_LDFLAGS) $(QT_LDFLAGS)
+libqt_plugin_la_LDFLAGS = $(AM_LDFLAGS) $(QT_LDFLAGS) $(GC_SECTIONS_LDFLAGS)
 if HAVE_OSX
 libqt_plugin_la_LDFLAGS += -Wl,-framework,Cocoa
 endif


=====================================
modules/gui/qt/meson.build
=====================================
@@ -9,7 +9,7 @@ qt_include_dir = include_directories('.')
 qt_extra_deps = []
 qt_extra_flags = ['-DQT_STRICT_ITERATORS','-DQT_USE_QSTRINGBUILDER','-DQT_NO_CAST_TO_ASCII','-DQT_NO_CAST_FROM_BYTEARRAY']
 qt_cppargs = []
-qt_link_args = []
+qt_link_args = [gc_sections_linkargs]
 
 qt6_dep = dependency('qt6',
     # Note that Qt < 6.2.5 does not provide pc files!



View it on GitLab: https://code.videolan.org/videolan/vlc/-/commit/bde4f02e2afb8c7cf51b4d34e359a753536a5d03

-- 
View it on GitLab: https://code.videolan.org/videolan/vlc/-/commit/bde4f02e2afb8c7cf51b4d34e359a753536a5d03
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