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libsdl-image: Fix link failure by pointing OBJC at CC

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configure.in calls AC_PROG_OBJC and libSDL_image_la_SOURCES carries an
Objective-C source, so automake selects Objective-C as the link language
for the library and emits:

  libSDL_image_la_LINK = $(LIBTOOL) ... --mode=link $(OBJCLD) \
                         $(AM_OBJCFLAGS) $(OBJCFLAGS) ...
  OBJCLD = $(OBJC)

AC_PROG_OBJC detects a bare compiler carrying none of TOOLCHAIN_OPTIONS,
so while compilation goes through $(CC) and is fine, the link drops
--sysroot and the tune flags and falls over:

  ld.lld: error: cannot open crtbeginS.o: No such file or directory
  ld.lld: error: unable to find library -lpng
  ld.lld: error: unable to find library -ljpeg
  ld.lld: error: unable to find library -ltiff
  ld.lld: error: unable to find library -lz
  ld.lld: error: unable to find library -lSDL

Export OBJC as CC so the link gets the full toolchain options.
configure.in already forces OBJCFLAGS=$CFLAGS, so that needs nothing.

Signed-off-by: Khem Raj <khem.raj@oss.qualcomm.com>
This commit is contained in:
Khem Raj
2026-08-05 10:09:17 -07:00
parent dc537b280b
commit 57623e3e5d
1 changed files with 8 additions and 0 deletions
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meta-oe/recipes-graphics/libsdl/libsdl-image_1.2.12.bb
+8
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@@ -17,6 +17,14 @@ inherit autotools pkgconfig
export SDL_CONFIG = "${STAGING_BINDIR_CROSS}/sdl-config"
# configure.in runs AC_PROG_OBJC and libSDL_image_la_SOURCES carries an
# Objective-C file, so automake picks Objective-C as the link language and
# links via $(OBJCLD) = $(OBJC) instead of $(CC). AC_PROG_OBJC detects a bare
# compiler with none of the toolchain options, so the link loses --sysroot and
# the tune flags and then fails to find crtbeginS.o, -lz, -lSDL and friends.
# Point OBJC at the full CC; configure.in already forces OBJCFLAGS=$CFLAGS.
export OBJC = "${CC}"
# Disable the run-time loading of the libs and bring back the soname dependencies.
EXTRA_OECONF += "--disable-jpg-shared --disable-png-shared -disable-tif-shared"