do not overwrite prepare if it already existed

1 files changed, 10 insertions, 4 deletions

diff --git a/extra/xfce4-diskperf-plugin/PKGBUILD b/extra/xfce4-diskperf-plugin/PKGBUILD
index f42f1cb5..74532d0b 100644
--- a/extra/xfce4-diskperf-plugin/PKGBUILD
+++ b/extra/xfce4-diskperf-plugin/PKGBUILD
@@ -1,5 +1,11 @@
 # see https://bugs.archlinux.org/task/60632
-prepare() {
-  cd $pkgname-$pkgver
-  sed -i '/#include <sys\/types.h>/ a #include <sys\/sysmacros.h>/' panel-plugin/devperf.c 
-}
+eval "$(
+  {
+    declare -f prepare || \
+    printf 'prepare() {\n}\n'
+  } \
+  | sed '
+    $ i cd "$srcdir/$pkgname-$pkgver"\
+        sed -i '"'"'/#include <sys\/types.h>/ a #include <sys\/sysmacros.h>/'"'"' panel-plugin/devperf.c
+  '
+)"