* aclang.m4 (_AC_PROG_CXX_EXIT_DECLARATION): Only add declaration to

confdefs.h when non-zero.

diff --git a/ChangeLog b/ChangeLog
index 4783fb04b81526d3a7cebc15ce4a3a5370bc3b80..b04adebe57ac7dbb7612f8c426d397aacd41ca52 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2001-06-28  Jens Petersen  <petersen@redhat.com>
+
+       * aclang.m4 (_AC_PROG_CXX_EXIT_DECLARATION): Only add declaration to
+       confdefs.h when non-zero.
+
 2001-06-28  Akim Demaille  <akim@epita.fr>
 
        * configure.in: Bump to 2.50c.

diff --git a/THANKS b/THANKS
index a26da153534d12aded7aceaa9c984d6ba8d6c48c..03f1f006f1c90e83af7c74e68a700f0a8b7f6028 100644 (file)
--- a/THANKS
+++ b/THANKS
@@ -65,6 +65,7 @@ James A. Lupo               lupoja@feynman.ml.wpafb.af.mil
 Jason Molenda               jsm@cygnus.com
 Jeff Garzik                 jgarzik@pobox.com
 Jeffrey A Law               law@cygnus.com
+Jens Petersen               petersen@redhat.com
 Jim Blandy                  jimb@wookumz.gnu.ai.mit.edu
 Jim Meyering                meyering@ascend.com
 Jiro Takabatake             jiro@din.or.jp

diff --git a/aclang.m4 b/aclang.m4
index 5f6078f58f9a6346b0697a4e5d93d9185ac442b3..2d25034e1ed523b97bafcbf564a21a2f02b8adc2 100644 (file)
--- a/aclang.m4
+++ b/aclang.m4
@@ -1221,9 +1221,11 @@ $ac_declaration],
                                       [exit (42);])],
                      [break])
 done
-echo '#ifdef __cplusplus' >>confdefs.h
-echo $ac_declaration      >>confdefs.h
-echo '#endif'             >>confdefs.h
+if test -n "$ac_declaration"; then
+  echo '#ifdef __cplusplus' >>confdefs.h
+  echo $ac_declaration      >>confdefs.h
+  echo '#endif'             >>confdefs.h
+fi
 ])# _AC_PROG_CXX_EXIT_DECLARATION
 
 

diff --git a/lib/autoconf/c.m4 b/lib/autoconf/c.m4
index 5f6078f58f9a6346b0697a4e5d93d9185ac442b3..2d25034e1ed523b97bafcbf564a21a2f02b8adc2 100644 (file)
--- a/lib/autoconf/c.m4
+++ b/lib/autoconf/c.m4
@@ -1221,9 +1221,11 @@ $ac_declaration],
                                       [exit (42);])],
                      [break])
 done
-echo '#ifdef __cplusplus' >>confdefs.h
-echo $ac_declaration      >>confdefs.h
-echo '#endif'             >>confdefs.h
+if test -n "$ac_declaration"; then
+  echo '#ifdef __cplusplus' >>confdefs.h
+  echo $ac_declaration      >>confdefs.h
+  echo '#endif'             >>confdefs.h
+fi
 ])# _AC_PROG_CXX_EXIT_DECLARATION
 
 

diff --git a/lib/autoconf/fortran.m4 b/lib/autoconf/fortran.m4
index 5f6078f58f9a6346b0697a4e5d93d9185ac442b3..2d25034e1ed523b97bafcbf564a21a2f02b8adc2 100644 (file)
--- a/lib/autoconf/fortran.m4
+++ b/lib/autoconf/fortran.m4
@@ -1221,9 +1221,11 @@ $ac_declaration],
                                       [exit (42);])],
                      [break])
 done
-echo '#ifdef __cplusplus' >>confdefs.h
-echo $ac_declaration      >>confdefs.h
-echo '#endif'             >>confdefs.h
+if test -n "$ac_declaration"; then
+  echo '#ifdef __cplusplus' >>confdefs.h
+  echo $ac_declaration      >>confdefs.h
+  echo '#endif'             >>confdefs.h
+fi
 ])# _AC_PROG_CXX_EXIT_DECLARATION
 
 

diff --git a/lib/autoconf/lang.m4 b/lib/autoconf/lang.m4
index 5f6078f58f9a6346b0697a4e5d93d9185ac442b3..2d25034e1ed523b97bafcbf564a21a2f02b8adc2 100644 (file)
--- a/lib/autoconf/lang.m4
+++ b/lib/autoconf/lang.m4
@@ -1221,9 +1221,11 @@ $ac_declaration],
                                       [exit (42);])],
                      [break])
 done
-echo '#ifdef __cplusplus' >>confdefs.h
-echo $ac_declaration      >>confdefs.h
-echo '#endif'             >>confdefs.h
+if test -n "$ac_declaration"; then
+  echo '#ifdef __cplusplus' >>confdefs.h
+  echo $ac_declaration      >>confdefs.h
+  echo '#endif'             >>confdefs.h
+fi
 ])# _AC_PROG_CXX_EXIT_DECLARATION