Fix bug reported by Paul Townsend on AIX 4.3.3.0 with CFLAGS=-O4

or CFLAGS=-O5.  In that case, the linker has a relaxed view of
fatal errors, and AC_CHECK_LIB causes it to include libraries even
when they don't exist.

* lib/autoconf/headers.m4 (AC_HEADER_DIRENT): Use AC_SEARCH_LIBS,
not AC_CHECK_LIB, so that we don't use -ldir or -lx if we don't
need it.

* lib/autoconf/specific.m4 (AC_ISC_POSIX): Replace the old, crufty
version with the version used by fileutils 4.1, except use
AC_SEARCH_LIBS, not AC_CHECK_LIB, so that we don't use -lcposix if
we don't need it.

* doc/autoconf.texi (AC_ISC_POSIX): Describe new behavior.

diff --git a/ChangeLog b/ChangeLog
index af861c8802f44053889483494a13e5eb2b2ac5c2..529105a4e3dd3329e2e7669a86c588edf1f09434 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,21 @@
+2001-09-17  Paul Eggert  <eggert@twinsun.com>
+
+       Fix bug reported by Paul Townsend on AIX 4.3.3.0 with CFLAGS=-O4
+       or CFLAGS=-O5.  In that case, the linker has a relaxed view of
+       fatal errors, and AC_CHECK_LIB causes it to include libraries even
+       when they don't exist.
+
+       * lib/autoconf/headers.m4 (AC_HEADER_DIRENT): Use AC_SEARCH_LIBS,
+       not AC_CHECK_LIB, so that we don't use -ldir or -lx if we don't
+       need it.
+
+       * lib/autoconf/specific.m4 (AC_ISC_POSIX): Replace the old, crufty
+       version with the version used by fileutils 4.1, except use
+       AC_SEARCH_LIBS, not AC_CHECK_LIB, so that we don't use -lcposix if
+       we don't need it.
+       
+       * doc/autoconf.texi (AC_ISC_POSIX): Describe new behavior.
+
 2001-09-13  Akim Demaille  <akim@epita.fr>
 
        * tests/base.at, tests/m4sh.at: Be sure to issue the bangshe line