Get eaccess from libgen if available; that's where it is on Solaris 9.

ChangeLog

@@ -1,5 +1,8 @@
 2004-07-27  Paul Eggert  <eggert@cs.ucla.edu>
 
+	* src/Makefile.am (cp_LDADD, ginstall_LDADD, mv_LDADD,
+	pathchk_LDADD, rm_LDADD, test_LDADD): New vars, for eaccess.
+
 	* tests/readlink/can-e: Don't assume that we can remove the
 	working directory: this isn't possible under Solaris 8, say.
 	* tests/readlink/can-f: Likewise.

lib/ChangeLog

@@ -1,5 +1,9 @@
 2004-07-27  Paul Eggert  <eggert@cs.ucla.edu>
 
+	* euidaccess.c [HAVE_LIBGEN_H]: Include <libgen.h>, for
+	eaccess on Solaris and SVR4-like systems.
+	(euidaccess): Use HAVE_EACCESS, not HAVE_DECL_EACCESS.
+
 	cycle-check integer overflow fixup.
 
 	* cycle-check.h: Remove now-inaccurate comment about the files

m4/ChangeLog

@@ -1,5 +1,10 @@
 2004-07-27  Paul Eggert  <eggert@cs.ucla.edu>
 
+	* euidaccess.m4 (gl_PREREQ_EUIDACCESS): Don't bother checking for
+	unistd.h, as autoconf does this for us.  Check for libgen.h.
+	Also look for eaccess within -lgen, which is where it is in
+	Solaris.  Set LIB_EACCESS accordingly.
+
 	* backupfile.m4 (gl_BACKUPFILE): AC_REQUIRE
 	gl_CHECK_TYPE_STRUCT_DIRENT_D_INO instead of invoking it directly.
 	Do not require AC_FUNC_CLOSEDIR_VOID.