[openwrt/openwrt] tools/elfutils: depend on m4

[LEDE Commits]

stintel pushed a commit to openwrt/openwrt.git, branch master:
https://git.openwrt.org/16e9ccd5fa39f3a32bca65831a881d9376d921bd

commit 16e9ccd5fa39f3a32bca65831a881d9376d921bd
Author: Stijn Tintel <stijn at linux-ipv6.be>
AuthorDate: Wed May 18 16:15:09 2022 +0300

    tools/elfutils: depend on m4
    
    Some buildbots fail to build elfutils due to m4 being missing. Add m4 as
    a dependency for elfutils to fix this.
    
    Fixes: ad79b9271949 ("elfutils: move host build to tools")
    Signed-off-by: Stijn Tintel <stijn at linux-ipv6.be>
---
 tools/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/Makefile b/tools/Makefile
index 507971c6d5..be1a23ed51 100644
--- a/tools/Makefile
+++ b/tools/Makefile
@@ -85,7 +85,7 @@ ifeq ($(HOST_OS),Darwin)
   tools-y += bash
 else
   $(curdir)/dwarves/compile += $(curdir)/elfutils/compile
-  $(curdir)/elfutils/compile := $(curdir)/zlib/compile
+  $(curdir)/elfutils/compile := $(curdir)/m4/compile $(curdir)/zlib/compile
   tools-$(CONFIG_DWARVES) += dwarves
   tools-y += elfutils
 endif