[PATCH] systemd: fix build with gcc8

[Martin Jansa <martin.jansa@gmail.com>]

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
---
 ...ild-with-gcc8-Werror-format-truncati.patch | 53 +++++++++++++++++++
 meta/recipes-core/systemd/systemd_237.bb      |  1 +
 2 files changed, 54 insertions(+)
 create mode 100644 meta/recipes-core/systemd/systemd/0036-time-util-fix-build-with-gcc8-Werror-format-truncati.patch

diff --git a/meta/recipes-core/systemd/systemd/0036-time-util-fix-build-with-gcc8-Werror-format-truncati.patch b/meta/recipes-core/systemd/systemd/0036-time-util-fix-build-with-gcc8-Werror-format-truncati.patch
new file mode 100644
index 0000000000..e44f431073
--- /dev/null
+++ b/meta/recipes-core/systemd/systemd/0036-time-util-fix-build-with-gcc8-Werror-format-truncati.patch
@@ -0,0 +1,53 @@
+From f9fd4546c25a15629544bc4642a74d7909cc0840 Mon Sep 17 00:00:00 2001
+From: Martin Jansa <Martin.Jansa@gmail.com>
+Date: Fri, 1 Jun 2018 15:22:28 +0000
+Subject: [PATCH] time-util: fix build with gcc8 -Werror=format-truncation=
+
+* it fails with gcc8 when -O1 or -Os is used (and -ftree-vrp which is added by -O2 and higher isn't used)
+
+../git/src/basic/time-util.c: In function 'format_timespan':
+../git/src/basic/time-util.c:508:46: error: '%0*llu' directive output between 1 and 2147483647 bytes may cause result to exceed 'INT_MAX' [-Werror=format-truncation=]
+                                              "%s"USEC_FMT".%0*"PRI_USEC"%s",
+                                              ^~~~
+../git/src/basic/time-util.c:508:60: note: format string is defined here
+                                              "%s"USEC_FMT".%0*"PRI_USEC"%s",
+../git/src/basic/time-util.c:508:46: note: directive argument in the range [0, 18446744073709551614]
+                                              "%s"USEC_FMT".%0*"PRI_USEC"%s",
+                                              ^~~~
+../git/src/basic/time-util.c:507:37: note: 'snprintf' output 4 or more bytes (assuming 2147483651) into a destination of size 4294967295
+                                 k = snprintf(p, l,
+                                     ^~~~~~~~~~~~~~
+                                              "%s"USEC_FMT".%0*"PRI_USEC"%s",
+                                              ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+                                              p > buf ? " " : "",
+                                              ~~~~~~~~~~~~~~~~~~~
+                                              a,
+                                              ~~
+                                              j,
+                                              ~~
+                                              b,
+                                              ~~
+                                              table[i].suffix);
+                                              ~~~~~~~~~~~~~~~~
+cc1: some warnings being treated as errors
+
+Upstream-Status: Submitted https://github.com/systemd/systemd/pull/9156
+
+Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
+---
+ src/basic/time-util.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/src/basic/time-util.c b/src/basic/time-util.c
+index 0601d4fa9..db5a9cd78 100644
+--- a/src/basic/time-util.c
++++ b/src/basic/time-util.c
+@@ -484,7 +484,7 @@ char *format_timespan(char *buf, size_t l, usec_t t, usec_t accuracy) {
+                 /* Let's see if we should shows this in dot notation */
+                 if (t < USEC_PER_MINUTE && b > 0) {
+                         usec_t cc;
+-                        int j;
++                        char j;
+ 
+                         j = 0;
+                         for (cc = table[i].usec; cc > 1; cc /= 10)
diff --git a/meta/recipes-core/systemd/systemd_237.bb b/meta/recipes-core/systemd/systemd_237.bb
index 2e6558ded1..0113c2dc72 100644
--- a/meta/recipes-core/systemd/systemd_237.bb
+++ b/meta/recipes-core/systemd/systemd_237.bb
@@ -54,6 +54,7 @@ SRC_URI += "file://touchscreen.rules \
            file://libmount.patch \
            file://0034-Fix-format-truncation-compile-failure-by-typecasting.patch \
            file://0035-Define-glibc-compatible-basename-for-non-glibc-syste.patch \
+           file://0036-time-util-fix-build-with-gcc8-Werror-format-truncati.patch \
            "
 SRC_URI_append_qemuall = " file://0001-core-device.c-Change-the-default-device-timeout-to-2.patch"
 
-- 
2.17.0