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package/libmpeg2: fix build with C23 compilers

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libmpeg2 contains code using K&R-style empty parameter list
declarations, which no longer builds with C23 compilers.

This causes issues with:

- GCC >= 15.x, which defaults to C23

- GCC 14.x, since the bump of autoconf to 2.73 in commit
  a6e8c07a33, as it causes -std=c23 to
  be added in the CFLAGS by the autoconf machinery. This doesn't
  happen with GCC 13.

Fixes:

  http://autobuild.buildroot.net/results/53daf0b4bd8b476252ca219e53a966405ece7e51

Signed-off-by: Shubham Chakraborty <chakrabortyshubham66@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
This commit is contained in:
Shubham Chakraborty
2026-08-10 22:21:05 +05:30
committed by Thomas Petazzoni
parent c23815ad18
commit 8f472d08d8
1 changed files with 4 additions and 0 deletions
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4
package/libmpeg2/libmpeg2.mk
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@@ -16,6 +16,10 @@ LIBMPEG2_INSTALL_STAGING = YES
LIBMPEG2_AUTORECONF = YES
LIBMPEG2_CONF_OPTS = --without-x --disable-directx
# Compilers using C23 no longer allows K&R style function
# declarations, so force to use gnu89 standard.
LIBMPEG2_CONF_ENV += CFLAGS="$(TARGET_CFLAGS) -std=gnu89"
LIBMPEG2_CPE_ID_VENDOR = videolan
ifeq ($(BR2_PACKAGE_SDL),y)