unsetenv: Add missing declaration on OSF/1 5.1.

[pspp] / lib / stdlib.in.h

diff --git a/lib/stdlib.in.h b/lib/stdlib.in.h
index 84097dce027cad17f1289c023e8e12c4dbb1485b..72c992fc0a8d9b49b60ef0ebbc615676ab7f0828 100644 (file)
--- a/lib/stdlib.in.h
+++ b/lib/stdlib.in.h
@@ -704,12 +704,14 @@ _GL_WARN_ON_USE (unlockpt, "unlockpt is not portable - "
 _GL_FUNCDECL_RPL (unsetenv, int, (const char *name) _GL_ARG_NONNULL ((1)));
 _GL_CXXALIAS_RPL (unsetenv, int, (const char *name));
 # else
-#  if !@HAVE_UNSETENV@
+#  if !@HAVE_DECL_UNSETENV@
 _GL_FUNCDECL_SYS (unsetenv, int, (const char *name) _GL_ARG_NONNULL ((1)));
 #  endif
 _GL_CXXALIAS_SYS (unsetenv, int, (const char *name));
 # endif
+# if !(@REPLACE_UNSETENV@ && !@HAVE_DECL_UNSETENV@)
 _GL_CXXALIASWARN (unsetenv);
+# endif
 #elif defined GNULIB_POSIXCHECK
 # undef unsetenv
 # if HAVE_RAW_DECL_UNSETENV