[SCM] GNU Autoconf source repository branch, master, updated. v2.64-23-g1fbc0eb

[Eric Blake]

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- Log -----------------------------------------------------------------
commit 1fbc0eb1148e871c20c68d6349cbf11c6e4bc175
Author: Thomas Jahns <address@hidden>
Date:   Fri Sep 4 11:48:44 2009 +0200

    Fix illegal tab character in Fortran source.
    
    * lib/autoconf/fortran.m4 (AC_FC_SRCEXT): Change TAB back to
    multiple spaces; regression introduced 2008-10-23.
    * NEWS: Mention this.
    * THANKS: Update.
    
    Signed-off-by: Eric Blake <address@hidden>

commit ef9e3bf13a069123eded46f10d6fb080264c836c
Author: Eric Blake <address@hidden>
Date:   Thu Aug 20 09:38:48 2009 -0600

    * .gitignore: Ignore html files.
    
    Signed-off-by: Eric Blake <address@hidden>

-----------------------------------------------------------------------

Summary of changes:
 .gitignore              |    1 +
 ChangeLog               |    8 ++++++++
 NEWS                    |    4 ++++
 THANKS                  |    1 +
 lib/autoconf/fortran.m4 |    3 ++-
 5 files changed, 16 insertions(+), 1 deletions(-)

diff --git a/.gitignore b/.gitignore
index f36511c..119a0ce 100644
--- a/.gitignore
+++ b/.gitignore
@@ -34,6 +34,7 @@ Makefile.in
 /doc/*.??
 !/doc/Makefile.am
 /doc/*.???
+/doc/*.html
 /doc/*.info*
 /doc/manual
 /doc/stamp-vti
diff --git a/ChangeLog b/ChangeLog
index b468323..1ff51b4 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,11 @@
+2009-09-04  Thomas Jahns  <address@hidden>  (tiny change)
+
+       Fix illegal tab character in Fortran source.
+       * lib/autoconf/fortran.m4 (AC_FC_SRCEXT): Change TAB back to
+       multiple spaces; regression introduced 2008-10-23.
+       * NEWS: Mention this.
+       * THANKS: Update.
+
 2009-08-22  Romain Lenglet  <address@hidden>
 
        Fix AT_CHECK_EUNIT for versions of Erlang/OTP without init:stop/1.
diff --git a/NEWS b/NEWS
index 8df44f1..3d24b8f 100644
--- a/NEWS
+++ b/NEWS
@@ -9,6 +9,10 @@ GNU Autoconf NEWS - User visible changes.
 
    These macros are present only for backwards compatibility purposes.
 
+** The AC_FC_FREEFORM macro no longer suffers from a whitespace bug that
+   made it fail with some Fortran compilers (regression introduced in
+   2.64).
+
 ** The following documented autotest macros are new:
    AT_CHECK_EUNIT
 
diff --git a/THANKS b/THANKS
index 1c10fe4..c9237e0 100644
--- a/THANKS
+++ b/THANKS
@@ -351,6 +351,7 @@ T.E. Dickey                 address@hidden
 Ted Bullock                 address@hidden
 Theodore Ts'o               address@hidden
 Thien-Thi Nguyen            address@hidden
+Thomas Jahns                address@hidden
 Thomas Winder               address@hidden
 Tim Freeman                 address@hidden
 Tim Mooney                  address@hidden
diff --git a/lib/autoconf/fortran.m4 b/lib/autoconf/fortran.m4
index 93b5f9d..a460366 100644
--- a/lib/autoconf/fortran.m4
+++ b/lib/autoconf/fortran.m4
@@ -1200,11 +1200,12 @@ for ac_flag in none -ffree-form -FR -free -qfree -Mfree 
-Mfreeform \
               -freeform "-f free"
 do
   test "x$ac_flag" != xnone && FCFLAGS="$ac_fc_freeform_FCFLAGS_save $ac_flag"
+dnl Use @&t@ below to ensure that editors don't turn 8+ spaces into tab.
   AC_COMPILE_IFELSE([
   program freeform
        ! FIXME: how to best confuse non-freeform compilers?
        print *, 'Hello ', &
-          'world.'
+     @&t@     'world.'
        end],
                    [ac_cv_fc_freeform=$ac_flag; break])
 done


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