X-Git-Url: https://ncurses.scripts.mit.edu/?a=blobdiff_plain;f=test%2Faclocal.m4;h=90903f5d6db0e6c931a28652c8d83518d9664e5b;hb=5079dc1dbbaa5128ac761358dcf81c8b606983c4;hp=e149eaf2221de6d9d021aed3f14cdd9c50a621a4;hpb=2ba352d86b57bddd1dd2a6e20892f380c34180b7;p=ncurses.git

diff --git a/test/aclocal.m4 b/test/aclocal.m4
index e149eaf2..90903f5d 100644
--- a/test/aclocal.m4
+++ b/test/aclocal.m4
@@ -27,7 +27,7 @@ dnl sale, use or other dealings in this Software without prior written       *
 dnl authorization.                                                           *
 dnl***************************************************************************
 dnl
-dnl $Id: aclocal.m4,v 1.182 2020/08/29 13:24:15 tom Exp $
+dnl $Id: aclocal.m4,v 1.183 2020/09/26 22:13:19 tom Exp $
 dnl
 dnl Author: Thomas E. Dickey
 dnl
@@ -1311,9 +1311,15 @@ if test "x$with_string_hacks" = "xyes"; then
 fi
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_ENABLE_WARNINGS version: 6 updated: 2020/08/28 04:10:22
+dnl CF_ENABLE_WARNINGS version: 7 updated: 2020/08/29 09:05:21
 dnl ------------------
 dnl Configure-option to enable gcc warnings
+dnl
+dnl $1 = extra options to add, if supported
+dnl $2 = option for checking attributes.  By default, this is done when
+dnl      warnings are enabled.  For other values:
+dnl      yes: always do this, e.g., to use in generated library-headers
+dnl      no: never do this
 AC_DEFUN([CF_ENABLE_WARNINGS],[
 if ( test "$GCC" = yes || test "$GXX" = yes )
 then
@@ -1328,9 +1334,10 @@ CF_ARG_ENABLE(warnings,
 AC_MSG_RESULT($with_warnings)
 if test "$with_warnings" = "yes"
 then
-	CF_GCC_ATTRIBUTES
+	ifelse($2,,[CF_GCC_ATTRIBUTES])
 	CF_GCC_WARNINGS($1)
 fi
+ifelse($2,yes,[CF_GCC_ATTRIBUTES])
 fi
 ])dnl
 dnl ---------------------------------------------------------------------------
@@ -1599,14 +1606,14 @@ AC_CACHE_CHECK(for openpty header,cf_cv_func_openpty,[
 ])
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_GCC_ATTRIBUTES version: 18 updated: 2020/03/10 18:53:47
+dnl CF_GCC_ATTRIBUTES version: 19 updated: 2020/08/29 09:05:21
 dnl -----------------
 dnl Test for availability of useful gcc __attribute__ directives to quiet
 dnl compiler warnings.  Though useful, not all are supported -- and contrary
 dnl to documentation, unrecognized directives cause older compilers to barf.
 AC_DEFUN([CF_GCC_ATTRIBUTES],
 [
-if test "$GCC" = yes
+if ( test "$GCC" = yes || test "$GXX" = yes )
 then
 cat > conftest.i <<EOF
 #ifndef GCC_PRINTF