[lxc-devel] [PATCH 01/21] configure.ac: Add code to detect bionic C library

[Stéphane Graber]

This adds a new IS_BIONIC define that can be used to detect whether we are
building with eglibc or with bionic.

Signed-off-by: Stéphane Graber <stgraber at ubuntu.com>
---
 configure.ac | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/configure.ac b/configure.ac
index 2add6a3..1a3f271 100644
--- a/configure.ac
+++ b/configure.ac
@@ -192,6 +192,20 @@ else
 fi
 AC_SUBST([CAP_LIBS])
 
+# Detect alternative C libraries
+AC_MSG_CHECKING(for bionic libc)
+AC_EGREP_CPP([BIONIC_LIBC], [#if defined(__ANDROID__)
+BIONIC_LIBC
+#endif
+	], libc_type="bionic")
+if test "x$libc_type" = "xbionic"; then
+	AC_MSG_RESULT([yes])
+	AC_DEFINE([IS_BIONIC], 1, [bionic libc])
+else
+	AC_MSG_RESULT([no])
+fi
+AM_CONDITIONAL([IS_BIONIC], [test "x$libc_type" = "xbionic"])
+
 # Some systems lack PR_CAPBSET_DROP definition => HAVE_DECL_PR_CAPBSET_DROP
 AC_CHECK_DECLS([PR_CAPBSET_DROP], [], [], [#include <sys/prctl.h>])
 
-- 
1.8.0