Hello busybox overlords,
I have a fresh checkout of busybox version 1.31.1 (git hash
bd754746394a382e04d116df02547f61b2026da9), and I’m trying to build it on Ubuntu
18.04 with gcc 7.4 with an out-of-tree build (per per
https://github.com/jgunthorpe/busybox/blob/master/INSTALL#L95
<https://github.com/jgunthorpe/busybox/blob/master/INSTALL#L95>) with
defconfig. But I’m getting some build errors:
root@e581c80974df:~/bbbuild# make
make -C /src O=/root/bbbuild
Using /src as source for busybox
GEN /root/bbbuild/Makefile
SPLIT include/autoconf.h -> include/config/*
GEN include/bbconfigopts.h
GEN include/common_bufsiz.h
GEN include/embedded_scripts.h
HOSTCC applets/usage
In file included from /src/applets/usage.c:30:0:
/src/include/applets.h:338:1: warning: implicit declaration of function
'IF_RMMOD'; did you mean 'IF_CHMOD'? [-Wimplicit-function-declaration]
IF_RMMOD( IF_MODPROBE_SMALL(APPLET_NOEXEC( rmmod, modprobe, BB_DIR_SBIN,
BB_SUID_DROP, rmmod )))
^~~~~~~~
IF_CHMOD
In file included from /src/applets/usage.c:11:0:
/src/applets/usage.c:25:34: error: expected expression before '{' token
#define MAKE_USAGE(aname, usage) { aname, usage },
^
/src/include/autoconf.h:3528:33: note: in definition of macro
'IF_MODPROBE_SMALL'
# define IF_MODPROBE_SMALL(...) __VA_ARGS__
^~~~~~~~~~~
/src/include/applets.h:43:46: note: in expansion of macro 'MAKE_USAGE'
# define APPLET_NOEXEC(name,main,l,s,help) MAKE_USAGE(#name,
help##_trivial_usage help##_full_usage)
^~~~~~~~~~
/src/include/applets.h:338:31: note: in expansion of macro 'APPLET_NOEXEC'
IF_RMMOD( IF_MODPROBE_SMALL(APPLET_NOEXEC( rmmod, modprobe, BB_DIR_SBIN,
BB_SUID_DROP, rmmod )))
^~~~~~~~~~~~~
/src/applets/usage.c: In function 'main':
/src/applets/usage.c:52:3: warning: ignoring return value of 'write', declared
with attribute warn_unused_result [-Wunused-result]
write(STDOUT_FILENO, usage_array[i].usage, strlen(usage_array[i].usage) + 1);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
scripts/Makefile.host:104: recipe for target 'applets/usage' failed
make[3]: *** [applets/usage] Error 1
/src/Makefile:372: recipe for target 'applets_dir' failed
make[2]: *** [applets_dir] Error 2
Makefile:112: recipe for target '_all' failed
make[1]: *** [_all] Error 2
Makefile:14: recipe for target 'all' failed
make: *** [all] Error 2
root@e581c80974df:~/bbbuild# cc --version
cc (Ubuntu 7.4.0-1ubuntu1~18.04.1) 7.4.0
Copyright (C) 2017 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
root@e581c80974df:~/bbbuild# gcc --version
gcc (Ubuntu 7.4.0-1ubuntu1~18.04.1) 7.4.0
Copyright (C) 2017 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
root@e581c80974df:~/bbbuild#
Building works fine if I don’t try to do it out-of-tree.
Best,
Samuel _______________________________________________
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