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authorFilipe Brandenburger <filbranden@google.com>2018-07-15 22:43:35 -0700
committerLuke Shumaker <lukeshu@parabola.nu>2018-08-16 21:50:42 -0400
commitd2737956424ae1694855a23116a354d93960255d (patch)
treed07414d58b7124449bef3e9d72b6289a4352f1ac
parentde7436b02badc82200dc127ff190b8155769b8e7 (diff)
build-sys: Detect whether struct statx is defined in sys/stat.h
Starting with glibc 2.27.9000-36.fc29, include file sys/stat.h will have a definition for struct statx, in which case include file linux/stat.h should be avoided, in order to prevent a duplicate definition. In file included from ../src/basic/missing.h:18, from ../src/basic/util.h:28, from ../src/basic/hashmap.h:10, from ../src/shared/bus-util.h:12, from ../src/libsystemd/sd-bus/bus-creds.c:11: /usr/include/linux/stat.h:99:8: error: redefinition of ‘struct statx’ struct statx { ^~~~~ In file included from /usr/include/sys/stat.h:446, from ../src/basic/util.h:19, from ../src/basic/hashmap.h:10, from ../src/shared/bus-util.h:12, from ../src/libsystemd/sd-bus/bus-creds.c:11: /usr/include/bits/statx.h:36:8: note: originally defined here struct statx ^~~~~ Extend our meson.build to look for struct statx when only sys/stat.h is included and, in that case, do not include linux/stat.h anymore. Tested that systemd builds correctly when using a glibc version that includes a definition for struct statx. glibc Fedora RPM update: https://src.fedoraproject.org/rpms/glibc/c/28cb5d31fc1e5887912283c889689c47076278ae glibc upstream commit: https://sourceware.org/git/?p=glibc.git;a=commitdiff;h=fd70af45528d59a00eb3190ef6706cb299488fcd (cherry picked from commit 75720bff62a84896e9a0654afc7cf9408cf89a38)
-rw-r--r--meson.build5
-rw-r--r--src/basic/missing.h5
-rw-r--r--src/basic/xattr-util.c1
3 files changed, 9 insertions, 2 deletions
diff --git a/meson.build b/meson.build
index 04331dd41a..a0e7240708 100644
--- a/meson.build
+++ b/meson.build
@@ -425,6 +425,7 @@ decl_headers = '''
#include <sys/stat.h>
'''
# FIXME: key_serial_t is only defined in keyutils.h, this is bound to fail
+# FIXME: these should use -D_GNU_SOURCE, since that is defined at build time
foreach decl : ['char16_t',
'char32_t',
@@ -439,6 +440,10 @@ foreach decl : ['char16_t',
conf.set10('HAVE_' + decl.underscorify().to_upper(), have)
endforeach
+conf.set10('HAVE_STRUCT_STATX_IN_SYS_STAT_H', cc.sizeof('struct statx', prefix : '''
+#include <sys/stat.h>
+''', args : '-D_GNU_SOURCE') > 0)
+
foreach decl : [['IFLA_INET6_ADDR_GEN_MODE', 'linux/if_link.h'],
['IN6_ADDR_GEN_MODE_STABLE_PRIVACY', 'linux/if_link.h'],
['IFLA_VRF_TABLE', 'linux/if_link.h'],
diff --git a/src/basic/missing.h b/src/basic/missing.h
index 71a07d0574..14ad3d4914 100644
--- a/src/basic/missing.h
+++ b/src/basic/missing.h
@@ -15,7 +15,6 @@
#include <linux/neighbour.h>
#include <linux/oom.h>
#include <linux/rtnetlink.h>
-#include <linux/stat.h>
#include <net/ethernet.h>
#include <stdlib.h>
#include <sys/resource.h>
@@ -25,6 +24,10 @@
#include <uchar.h>
#include <unistd.h>
+#if !HAVE_STRUCT_STATX_IN_SYS_STAT_H
+#include <linux/stat.h>
+#endif
+
#if HAVE_AUDIT
#include <libaudit.h>
#endif
diff --git a/src/basic/xattr-util.c b/src/basic/xattr-util.c
index c5c55ea846..0ee0979837 100644
--- a/src/basic/xattr-util.c
+++ b/src/basic/xattr-util.c
@@ -2,7 +2,6 @@
#include <errno.h>
#include <fcntl.h>
-#include <linux/stat.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>