[Buildroot] [git commit] package/brcm-patchram-plus: fix build w/ gcc-15

[Buildroot] [git commit] package/brcm-patchram-plus: fix build w/ gcc-15

[Peter Korsgaard]

commit: https://git.buildroot.net/buildroot/commit/?id=73331b68a9a8b72876a69f1138a0917b44ad67db
branch: https://git.buildroot.net/buildroot/commit/?id=refs/heads/master

Fixes http://autobuild.buildroot.net/results/2058934e442c0b3f3d0bd81bd7ed080c2eaade31/

The source code uses empty argument function pointer prototypes, which
changed behaviour in C23 (default in gcc-15):

https://gcc.gnu.org/gcc-15/porting_to.html#c23-fn-decls-without-parameters

Causing build issues. Fix it by forcing gnu99 mode instead.

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
---
 package/brcm-patchram-plus/brcm-patchram-plus.mk | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/package/brcm-patchram-plus/brcm-patchram-plus.mk b/package/brcm-patchram-plus/brcm-patchram-plus.mk
index d873330769..81ffc47aee 100644
--- a/package/brcm-patchram-plus/brcm-patchram-plus.mk
+++ b/package/brcm-patchram-plus/brcm-patchram-plus.mk
@@ -10,4 +10,8 @@ BRCM_PATCHRAM_PLUS_LICENSE = Apache-2.0
 BRCM_PATCHRAM_PLUS_LICENSE_FILES = COPYING
 BRCM_PATCHRAM_PLUS_AUTORECONF = YES
 
+# C23 changes meaning of empty argument prototypes like int (*)()
+# causing build failures, so force gnu99
+BRCM_PATCHRAM_PLUS_CONF_ENV += CFLAGS="$(TARGET_CFLAGS) -std=gnu99"
+
 $(eval $(autotools-package))
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