From f3ccf06d10df980f57c01908e5dac376c027fd8a Mon Sep 17 00:00:00 2001
From: Matthieu Moy <git@matthieu-moy.fr>
Date: Wed, 26 Jun 2019 19:08:39 +0200
Subject: [PATCH] use $git_prefix when set, not the opposite

---
 git-latexdiff | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/git-latexdiff b/git-latexdiff
index 3bb7ed1..cae75c9 100755
--- a/git-latexdiff
+++ b/git-latexdiff
@@ -596,17 +596,17 @@ if test "$subtree" = 1 && test -n "$git_prefix"; then
     checkoutroot=$git_prefix
     # create the build directory (containing the final PDFs) if the param was set
     if test -n "$use_build_dir" ; then
-	builddir="$use_build_dir"
+	builddir="$git_prefix/$use_build_dir"
     else
-	builddir="."
+	builddir="$git_prefix"
     fi
 else
     checkoutroot="."
     # create the build directory (containing the final PDFs) if the param was set
     if test -n "$use_build_dir" ; then
-	builddir="$git_prefix/$use_build_dir"
+	builddir="$use_build_dir"
     else
-	builddir="$git_prefix"
+	builddir="."
     fi
 fi