diff options
| author | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2022-10-16 03:04:59 +0300 |
|---|---|---|
| committer | Denys Vlasenko <vda.linux@googlemail.com> | 2022-11-29 16:10:22 +0300 |
| commit | 77216c368f3ae65c3a9fc504d28d3fadd46d6d8d (patch) | |
| tree | 8f4bf1ca9cd3aea68214bc93ab5a586401979f47 /coreutils | |
| parent | 75fbff1326674b768cee66f32e3799d5bff5e194 (diff) | |
Fix non-Linux builds
Various tools are Linuxish and should thus only attempted to build on
Linux only. Some features are also Linux-only.
Also, libresolv is used on all GNU platforms, notably GNU/Hurd and
GNU/kfreeBSD.
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'coreutils')
| -rw-r--r-- | coreutils/dd.c | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/coreutils/dd.c b/coreutils/dd.c index 06c1b7b9c..3e034eb1e 100644 --- a/coreutils/dd.c +++ b/coreutils/dd.c @@ -200,6 +200,7 @@ static void dd_output_status(int UNUSED_PARAM cur_signal) } #if ENABLE_FEATURE_DD_IBS_OBS +# ifdef O_DIRECT static int clear_O_DIRECT(int fd) { if (errno == EINVAL) { @@ -211,6 +212,7 @@ static int clear_O_DIRECT(int fd) } return 0; } +# endif #endif static ssize_t dd_read(void *ibuf, size_t ibs) @@ -225,8 +227,10 @@ static ssize_t dd_read(void *ibuf, size_t ibs) #endif n = safe_read(ifd, ibuf, ibs); #if ENABLE_FEATURE_DD_IBS_OBS +# ifdef O_DIRECT if (n < 0 && (G.flags & FLAG_IDIRECT) && clear_O_DIRECT(ifd)) goto read_again; +# endif #endif return n; } @@ -239,8 +243,10 @@ static bool write_and_stats(const void *buf, size_t len, size_t obs, IF_FEATURE_DD_IBS_OBS(write_again:) n = full_write(ofd, buf, len); #if ENABLE_FEATURE_DD_IBS_OBS +# ifdef O_DIRECT if (n < 0 && (G.flags & FLAG_ODIRECT) && clear_O_DIRECT(ofd)) goto write_again; +# endif #endif #if ENABLE_FEATURE_DD_THIRD_STATUS_LINE @@ -501,8 +507,13 @@ int dd_main(int argc UNUSED_PARAM, char **argv) if (infile) { int iflag = O_RDONLY; #if ENABLE_FEATURE_DD_IBS_OBS - if (G.flags & FLAG_IDIRECT) + if (G.flags & FLAG_IDIRECT) { +# ifdef O_DIRECT iflag |= O_DIRECT; +# else + bb_error_msg_and_die("O_DIRECT not supported on this platform"); +# endif + } #endif xmove_fd(xopen(infile, iflag), ifd); } else { @@ -516,8 +527,13 @@ int dd_main(int argc UNUSED_PARAM, char **argv) if (G.flags & FLAG_APPEND) oflag |= O_APPEND; #if ENABLE_FEATURE_DD_IBS_OBS - if (G.flags & FLAG_ODIRECT) + if (G.flags & FLAG_ODIRECT) { +# ifdef O_DIRECT oflag |= O_DIRECT; +# else + bb_error_msg_and_die("O_DIRECT not supported on this platform"); +# endif + } #endif xmove_fd(xopen(outfile, oflag), ofd); |