[PATCH v2 16/23] contrib/buildsystems: handle options starting with a slash

["Johannes Schindelin via GitGitGadget" <gitgitgadget@xxxxxxxxx>]

From: Johannes Schindelin <johannes.schindelin@xxxxxx>

With the recent changes to allow building with MSVC=1, we now pass the
/OPT:REF option to the compiler. This confuses the parser that wants to
turn the output of a dry run into project definitions for QMake and Visual
Studio:

	Unhandled link option @ line 213: /OPT:REF at [...]

Let's just extend the code that passes through options that start with a
dash, so that it passes through options that start with a slash, too.

Signed-off-by: Johannes Schindelin <johannes.schindelin@xxxxxx>
---
 contrib/buildsystems/engine.pl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/contrib/buildsystems/engine.pl b/contrib/buildsystems/engine.pl
index 9bde7ae15b..8bb07e8e25 100755
--- a/contrib/buildsystems/engine.pl
+++ b/contrib/buildsystems/engine.pl
@@ -351,7 +351,7 @@ sub handleLinkLine
             push(@libs, "expat.lib");
         } elsif ("$part" eq "-liconv") {
             push(@libs, "libiconv.lib");
-        } elsif ($part =~ /^-/) {
+        } elsif ($part =~ /^[-\/]/) {
             push(@lflags, $part);
         } elsif ($part =~ /\.(a|lib)$/) {
             $part =~ s/\.a$/.lib/;
-- 
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