systemd: fix build on uClibc

[PATCH] fix build with uClibc

Based on OE patch from Khem Raj:

http://cgit.openembedded.org/meta-openembedded/tree/meta-oe/recipes-core/systemd/systemd/paper-over-mkostemp.patch

But extended to also cover execvpe (OE carries a patch adding execvpe

support to uClibc).

Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

---

 src/macro.h |   15 +++++++++++++++

 1 file changed, 15 insertions(+)

Index: systemd-37/src/macro.h

===================================================================

--- systemd-37.orig/src/macro.h

+++ systemd-37/src/macro.h

@@ -27,6 +27,21 @@

 #include <sys/uio.h>

 #include <inttypes.h>

+#ifdef __UCLIBC__

+/* uclibc does not implement mkostemp GNU extension */

+#define mkostemp(x,y) mkstemp(x)

+/* uclibc does not implement execvpe GNU extension */

+#ifndef _GNU_SOURCE

+#define _GNU_SOURCE

+#endif

+#include <unistd.h>

+static inline int execvpe(const char *file, char *const argv[],

+                          char *const envp[])

+{

+        environ = (char **)envp;

+        return execvp(file, argv);

+}

+#endif

 #define _printf_attr_(a,b) __attribute__ ((format (printf, a, b)))

 #define _sentinel_ __attribute__ ((sentinel))

 #define _noreturn_ __attribute__((noreturn))

	SYSTEMD_CONF_OPT += --disable-acl

endif

# mq_getattr needs -lrt

SYSTEMD_MAKE_OPT += LIBS=-lrt

define SYSTEMD_INSTALL_INIT_HOOK

	ln -fs ../bin/systemd $(TARGET_DIR)/sbin/init

	ln -fs ../bin/systemctl $(TARGET_DIR)/sbin/halt