src/libadacl.c: use asprintf() instead of snprintf() for paths.

[apply-default-acl.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index e4742341dc04e8cccf74f4b2addbc9ed9a63629f..80f678dce14fe57f9f1f94e0ff98cbf8115507da 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -20,7 +20,6 @@ AC_HEADER_REQUIRE(acl/libacl.h)
 AC_HEADER_REQUIRE(fcntl.h)
 AC_HEADER_REQUIRE(getopt.h)
 AC_HEADER_REQUIRE(libgen.h)
-AC_HEADER_REQUIRE(limits.h)
 AC_HEADER_REQUIRE(linux/xattr.h)
 AC_HEADER_REQUIRE(sys/acl.h)
 AC_HEADER_REQUIRE(unistd.h)
@@ -44,5 +43,11 @@ AC_CHECK_DECLS([O_PATH],
                [[#define _GNU_SOURCE
                 #include <fcntl.h>]])
 
+# And check for the GNU/BSD extension asprintf(), which lets us avoid
+# praying to the PATH_MAX gods while constructing long paths.
+AC_CHECK_FUNC(asprintf,
+              [],
+              AC_MSG_ERROR(missing required asprintf function))
+
 LT_INIT
 AC_OUTPUT