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changeset 2009:47b6abb24040

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effectively require AC_CHECK_HEADERS(unistd.h)
author Jim Meyering <jim@meyering.net>
date Mon, 08 Nov 1999 09:18:27 +0000
parents 2d8ab27e705c
children 2d3c82271495
files m4/link-follow.m4
diffstat 1 files changed, 5 insertions(+), 0 deletions(-) [+]
line wrap: on
line diff
--- a/m4/link-follow.m4
+++ b/m4/link-follow.m4
@@ -7,6 +7,11 @@
   AC_CACHE_CHECK([whether link(2) follows symlinks],
 		 jm_ac_cv_func_link_follows_symlink,
   [
+    dnl poor-man's AC_REQUIRE: FIXME: repair this once autoconf-3 provides
+    dnl the appropriate framework.
+    test -z "$ac_cv_header_unistd_h" \
+      && AC_CHECK_HEADERS(unistd.h)
+
     # Create a regular file.
     echo > conftest.file
     AC_TRY_RUN(