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-rwxr-xr-xtools/update/acpolish15
1 files changed, 11 insertions, 4 deletions
diff --git a/tools/update/acpolish b/tools/update/acpolish
index 6cb14f3586..b86c225111 100755
--- a/tools/update/acpolish
+++ b/tools/update/acpolish
@@ -404,10 +404,17 @@ sub subst_line
{ # makefile variable addition
# print STDERR "MACRO: <$1> += <$2>\n";
my $p = "$1" ;
- ${"var_$p+"}="$2" ;
- # place a marker
- push @tbuf, "§5$p\n" ;
- push @vars, "$p+" ;
+ if ( not defined ${"var_$p+"} )
+ {
+ # place a marker
+ push @tbuf, "§5$p\n" ;
+ push @vars, "$p+" ;
+ }
+ else
+ {
+ print STDERR "WARNING += $_" ;
+ }
+ ${"var_$p+"} .=" $2" ;
}
elsif ( /^[\s]*(\@[^\s]+\@)$/o )
{ # autoconf variable