From: Sergei Trofimovich <slyfox@gentoo.org>
Date: Sun, 14 Jun 2020 19:28:07 +0000 (+0100)
Subject: elfutils/configure.ac: use $READELF, not readelf
X-Git-Tag: elfutils-0.181~32
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=9698a399292fbc5e07eac17217af2de8bf5cb4b0;p=thirdparty%2Felfutils.git

elfutils/configure.ac: use $READELF, not readelf

Allow user to specify own readelf. Use detected readelf,
not 'readelf'.

Noticed when was building elfutils on tuple-prefixed toolchain:

```
checking whether the compiler generates build-ids...
  ./configure: line 5197: readelf: command not found
no
```

Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
---

diff --git a/ChangeLog b/ChangeLog
index 763fa002a..8e79ec5cf 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2020-06-15  Sergei Trofimovich <slyfox@gentoo.org>
+
+	* configure.ac: Use READELF in build-id check.
+
 2020-06-11  Mark Wielaard  <mark@klomp.org>
 
 	* configure.ac: Set version to 0.180.
diff --git a/configure.ac b/configure.ac
index 74cc749db..8d3bcb7b6 100644
--- a/configure.ac
+++ b/configure.ac
@@ -200,7 +200,7 @@ fi
 # We really want build-ids. Warn and force generating them if gcc was
 # configure without --enable-linker-build-id
 AC_CACHE_CHECK([whether the compiler generates build-ids], ac_cv_buildid, [dnl
-AC_LINK_IFELSE([AC_LANG_PROGRAM()],[ac_cv_buildid=yes; readelf -n conftest$EXEEXT | grep -q NT_GNU_BUILD_ID || ac_cv_buildid=no],AC_MSG_FAILURE([unexpected compile failure]))])
+AC_LINK_IFELSE([AC_LANG_PROGRAM()],[ac_cv_buildid=yes; $READELF -n conftest$EXEEXT | grep -q NT_GNU_BUILD_ID || ac_cv_buildid=no],AC_MSG_FAILURE([unexpected compile failure]))])
 if test "$ac_cv_buildid" = "no"; then
 	AC_MSG_WARN([compiler doesn't generate build-id by default])
 	LDFLAGS="$LDFLAGS -Wl,--build-id"