From: Dario Binacchi <dario.binacchi@amarulasolutions.com>
To: buildroot@buildroot.org
Cc: Dario Binacchi <dario.binacchi@amarulasolutions.com>,
Lothar Felten <lothar.felten@gmail.com>
Subject: [Buildroot] [PATCH 1/2] package/am33x-cm3: fix build with gcc >= 15
Date: Wed, 14 Oct 2026 09:37:42 +0200 [thread overview]
Message-ID: <20261014073743.3673307-1-dario.binacchi@amarulasolutions.com> (raw)
gcc 15 defaults to the C23 standard, where bool, true and false are
keywords. The am33x-cm3 code base defines them in its own stddef.h,
so the build fails with:
src/include/stddef.h:18:15: error: 'bool' cannot be defined via 'typedef'
18 | typedef _Bool bool;
| ^~~~
src/include/stddef.h:19:8: error: cannot use keyword 'false' as enumeration constant
19 | enum { false, true };
| ^~~~~
The upstream project has not received any commit since 2018 and none
of its branches fix this issue, so rather than carrying a patch that
cannot be submitted to an active upstream, force the GNU C11 standard
in the .mk file.
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
---
package/am33x-cm3/am33x-cm3.mk | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/package/am33x-cm3/am33x-cm3.mk b/package/am33x-cm3/am33x-cm3.mk
index 8c890a75fc3c..f753e46134b3 100644
--- a/package/am33x-cm3/am33x-cm3.mk
+++ b/package/am33x-cm3/am33x-cm3.mk
@@ -13,8 +13,10 @@ AM33X_CM3_LICENSE_FILES = License.txt
# The build command below will use the standard cross-compiler (normally
# build for Cortex-A8, to build the FW for the Cortex-M3.
+# The code base predates C23 and defines its own bool/true/false, so
+# force an older C standard to build with gcc >= 15.
define AM33X_CM3_BUILD_CMDS
- $(TARGET_MAKE_ENV) $(MAKE) CC="$(TARGET_CC)" CROSS_COMPILE="$(TARGET_CROSS)" -C $(@D) all
+ $(TARGET_MAKE_ENV) $(MAKE) CC="$(TARGET_CC) -std=gnu11" CROSS_COMPILE="$(TARGET_CROSS)" -C $(@D) all
endef
define AM33X_CM3_INSTALL_TARGET_CMDS
--
2.43.0
_______________________________________________
buildroot mailing list
buildroot@buildroot.org
https://lists.buildroot.org/mailman/listinfo/buildroot
next reply other threads:[~2026-10-14 7:37 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-14 7:37 Dario Binacchi [this message]
2026-10-14 7:37 ` [Buildroot] [PATCH 2/2] configs/beaglebone: bump Linux to 6.18.56 and U-Boot to 2026.10 Dario Binacchi
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20261014073743.3673307-1-dario.binacchi@amarulasolutions.com \
--to=dario.binacchi@amarulasolutions.com \
--cc=buildroot@buildroot.org \
--cc=lothar.felten@gmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox