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[SCM] GNU M4 source repository branch, branch-1.6, updated. v1.5.89a-52-
From: |
Eric Blake |
Subject: |
[SCM] GNU M4 source repository branch, branch-1.6, updated. v1.5.89a-52-g400b93f |
Date: |
Thu, 21 Aug 2008 14:42:58 +0000 |
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http://git.sv.gnu.org/gitweb/?p=m4.git;a=commitdiff;h=400b93fe78014c96de11d6e18198ddd38639ca3c
The branch, branch-1.6 has been updated
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from b8829779ba82826040f16fe78420f0e5a2fe881e (commit)
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- Log -----------------------------------------------------------------
commit 400b93fe78014c96de11d6e18198ddd38639ca3c
Author: Eric Blake <address@hidden>
Date: Thu Aug 21 07:52:14 2008 -0600
Fix crash with traced defn(undef), regression from 2007-08-09.
* src/builtin.c (m4_defn): Handle traced but undefined macros.
* doc/m4.texinfo (Trace): Test it.
* NEWS: Document it.
Signed-off-by: Eric Blake <address@hidden>
(cherry picked from commit 349bbb7400ee079878cb5859ee850a2b34a74c40)
-----------------------------------------------------------------------
Summary of changes:
ChangeLog | 7 +++++++
NEWS | 10 ++++++----
doc/m4.texinfo | 5 ++++-
src/builtin.c | 2 +-
4 files changed, 18 insertions(+), 6 deletions(-)
diff --git a/ChangeLog b/ChangeLog
index 533bc55..0e06082 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2008-08-21 Eric Blake <address@hidden>
+
+ Fix crash with traced defn(undef), regression from 2007-08-09.
+ * src/builtin.c (m4_defn): Handle traced but undefined macros.
+ * doc/m4.texinfo (Trace): Test it.
+ * NEWS: Document it.
+
2008-08-18 Eric Blake <address@hidden>
Remove deprecated -N option; fixes a regression from 2006-09-14.
diff --git a/NEWS b/NEWS
index 77472fe..109c80a 100644
--- a/NEWS
+++ b/NEWS
@@ -9,13 +9,15 @@ Foundation, Inc.
a macro. This was most noticeable with `traceon(`traceon')', but
would also happen in cases such as `foo(traceon(`foo'))'.
-** Fix regressions introduced in 1.4.10b but not present in 1.4.11:
+** Fix regressions introduced in 1.4.10b:
*** Using `builtin' or `indir' to perform nested `shift' calls triggered
- an assertion failure.
+ an assertion failure (not present in 1.4.11).
*** The command-line option -dV, as well as the builtin `debugmode(V)',
- failed to enable `t' and `c' debug options.
+ failed to enable `t' and `c' debug options (not present in 1.4.11).
*** Comments that contain unbalanced quotes were not rescanned correctly
- when passed through address@hidden
+ when passed through $@ (not present in 1.4.11).
+*** Using `defn' on a traced but undefined macro triggered an assertion
+ failure (also present in 1.4.11, but not 1.4.12).
** Remove the undocumented command-line option '-N', as no one complained
about the assertion failure regression that it introduced in 1.4.7.
diff --git a/doc/m4.texinfo b/doc/m4.texinfo
index bfb6108..7540b2e 100644
--- a/doc/m4.texinfo
+++ b/doc/m4.texinfo
@@ -3770,6 +3770,9 @@ traceon(`foo')
@result{}
foo
@result{}foo
+defn(`foo')
address@hidden:stdin:4: Warning: defn: undefined macro `foo'
address@hidden
define(`foo', `bar')
@result{}
foo
@@ -3780,7 +3783,7 @@ undefine(`foo')
ifdef(`foo', `yes', `no')
@result{}no
indir(`foo')
address@hidden:stdin:8: Warning: indir: undefined macro `foo'
address@hidden:stdin:9: Warning: indir: undefined macro `foo'
@result{}
define(`foo', `blah')
@result{}
diff --git a/src/builtin.c b/src/builtin.c
index cc21ea2..b8449a0 100644
--- a/src/builtin.c
+++ b/src/builtin.c
@@ -1044,7 +1044,7 @@ m4_defn (struct obstack *obs, int argc, macro_arguments
*argv)
continue;
}
s = lookup_symbol (ARG (i), ARG_LEN (i), SYMBOL_LOOKUP);
- if (s == NULL)
+ if (s == NULL || SYMBOL_TYPE (s) == TOKEN_VOID)
{
m4_warn (0, me, _("undefined macro %s"),
quotearg_style_mem (locale_quoting_style, ARG (i),
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