Since a1f20223cfcf7b9eae8c9e7e7a07e7bf1377f65b in some build configurations PATH_MAX is undefined. Build log from Buildroot testing failure: http://autobuild.buildroot.net/results/3ec818e676827c03f08c264c6c7a53b025b7ba1d/build-end.log ... /home/giuliobenetti/autobuild/run/instance-0/output-1/host/bin/arm-buildroot-linux-musleabihf-gcc -Wall -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -O2 -I/home/giuliobenetti/autobuild/run/instance-0/output-1/host/arm-buildroot-linux-musleabihf/sysroot/usr/include -c libbridge_misc.c libbridge_init.c: In function 'isbridge': libbridge_init.c:49:12: error: 'PATH_MAX' undeclared (first use in this function); did you mean 'AF_MAX'? 49 | char path[PATH_MAX]; | ^~~~~~~~ | AF_MAX libbridge_init.c:49:12: note: each undeclared identifier is reported only once for each function it appears in libbridge_init.c:49:7: warning: unused variable 'path' [-Wunused-variable] 49 | char path[PATH_MAX]; | ^~~~ make[2]: *** [Makefile:37: libbridge_init.o] Error 1 make[2]: *** Waiting for unfinished jobs.... libbridge_devif.c: In function 'fpopen': libbridge_devif.c:33:12: error: 'PATH_MAX' undeclared (first use in this function); did you mean 'AF_MAX'? 33 | char path[PATH_MAX]; | ^~~~~~~~ | AF_MAX Signed-off-by: Matthew Weber <matthew.weber@xxxxxxxxxxxxxxxxxxx> --- libbridge/libbridge_devif.c | 1 + libbridge/libbridge_init.c | 1 + 2 files changed, 2 insertions(+) diff --git a/libbridge/libbridge_devif.c b/libbridge/libbridge_devif.c index 8b7d954..95f7769 100644 --- a/libbridge/libbridge_devif.c +++ b/libbridge/libbridge_devif.c @@ -24,6 +24,7 @@ #include <string.h> #include <dirent.h> #include <fcntl.h> +#include <linux/limits.h> #include "libbridge.h" #include "libbridge_private.h" diff --git a/libbridge/libbridge_init.c b/libbridge/libbridge_init.c index c914971..645dda6 100644 --- a/libbridge/libbridge_init.c +++ b/libbridge/libbridge_init.c @@ -24,6 +24,7 @@ #include <dirent.h> #include <sys/types.h> #include <sys/stat.h> +#include <linux/limits.h> #include "libbridge.h" #include "libbridge_private.h" -- 2.17.1