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ifstat fails to build with GCC 15 due to an incorrect detection of the signal handler return type. The configure script shipped with ifstat uses an obsolete K&R-style declaration: void (*signal())(); With GCC 15 this causes the signal() return type check to incorrectly assume 'int' instead of 'void'. As a result, the generated code defines signal handlers returning int, which conflicts with struct sigaction expecting a void (*)(int) handler and leads to a build failure: assignment to 'void (*)(int)' from incompatible pointer type 'int (*)(int)' Enable autoreconf during the build to regenerate the configure script, which correctly detects the signal handler type and fixes the compilation error. Signed-off-by: Til Kaiser <mail@tk154.de>
BKPepe
reviewed
Jan 9, 2026
| PKG_LICENSE:=GPL-2.0 | ||
| PKG_LICENSE_FILES:=COPYING | ||
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| PKG_FIXUP:=autoreconf |
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@neheb is here autoreconf guru for removing and adding it back. 😆
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📦 Package Details
Maintainer: @nikil
Description:
ifstatfails to build with GCC 15 due to an incorrect detection of the signal handler return type.The configure script shipped with
ifstatuses an obsolete K&R-style declaration:void (*signal())();With GCC 15 this causes the
signal()return type check to incorrectly assumeintinstead ofvoid.As a result, the generated code defines signal handlers returning
int, which conflicts withstruct sigactionexpecting avoid (*)(int)handler and leads to a build failure:Enable
autoreconfduring the build to regenerate the configure script, which correctly detects the signal handler type and fixes the compilation error.🧪 Run Testing Details
✅ Formalities