[SCM] GNU Libtool branch, master, updated. v2.2.6-45-g447a831

[Ralf Wildenhues]

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- Log -----------------------------------------------------------------
commit 447a83159b6702d3644370774d334f3ba17c1bf4
Author: Ralf Wildenhues <address@hidden>
Date:   Sun Nov 23 15:36:14 2008 +0100

    Fix $ECHO test to not influence other _AS_DETECT_SUGGESTED code.
    
    * libltdl/m4/libtool.m4 (_LT_PROG_ECHO_BACKSLASH): Fix test to
    not influence further tests registered with _AS_DETECT_SUGGESTED
    and do not use a PATH below /tmp, to avoid influence by a third
    party.
    
    Signed-off-by: Ralf Wildenhues <address@hidden>

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

Summary of changes:
 ChangeLog             |    9 +++++++++
 libltdl/m4/libtool.m4 |   13 +++++++------
 2 files changed, 16 insertions(+), 6 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index af83a72..d7ae7cd 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,12 @@
+2008-11-23  Ralf Wildenhues  <address@hidden>
+           Eric Blake  <address@hidden>
+
+       Fix $ECHO test to not influence other _AS_DETECT_SUGGESTED code.
+       * libltdl/m4/libtool.m4 (_LT_PROG_ECHO_BACKSLASH): Fix test to
+       not influence further tests registered with _AS_DETECT_SUGGESTED
+       and do not use a PATH below /tmp, to avoid influence by a third
+       party.
+
 2008-11-23  Alon Bar-Lev  <address@hidden>  (tiny change)
 
        Fix func_win32_libid for 64-bit Windows.
diff --git a/libltdl/m4/libtool.m4 b/libltdl/m4/libtool.m4
index 633d8f8..5d1a131 100644
--- a/libltdl/m4/libtool.m4
+++ b/libltdl/m4/libtool.m4
@@ -1114,12 +1114,13 @@ esac
 
 m4_ifdef([_AS_DETECT_SUGGESTED],
 [_AS_DETECT_SUGGESTED([
-  
ECHO='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
-  ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO
-  ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO$ECHO
-  PATH=/tmp/nonexistent; export PATH;
-  FPATH=$PATH; export FPATH;
-  test "X`printf %s $ECHO`" = "X$ECHO"])])
+  test -n "${ZSH_VERSION+set}${BASH_VERSION+set}" || (
+    
ECHO='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
+    ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO
+    ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO$ECHO
+    PATH=/empty FPATH=/empty; export PATH FPATH
+    test "X`printf %s $ECHO`" = "X$ECHO" \
+      || test "X`print -r -- $ECHO`" = "X$ECHO" )])])
 
 _LT_DECL([], [SHELL], [1], [Shell to use when invoking shell scripts])
 _LT_DECL([], [ECHO], [1], [An echo program that protects backslashes])


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