From: Kai Kang <kai.kang@windriver.com>

It needs to run `dot -c` first before call 'dot' command, otherwise it
fails with:

| Format: "png" not recognized. No formats found.
| Perhaps "dot -c" needs to be run (with installer's privileges) to
  register the plugins?

Signed-off-by: Kai Kang <kai.kang@windriver.com>

Wrong list. Sorry for the noise.

Kai

---
v2:
* add guard to check qemu-usermode is supported

 .../graphviz/graphviz_2.50.0.bb               | 19 ++++++++++++++++++-
 1 file changed, 18 insertions(+), 1 deletion(-)

diff --git a/meta-oe/recipes-graphics/graphviz/graphviz_2.50.0.bb b/meta-oe/recipes-graphics/graphviz/graphviz_2.50.0.bb
index 0eca7fdba..66353b837 100644
--- a/meta-oe/recipes-graphics/graphviz/graphviz_2.50.0.bb
+++ b/meta-oe/recipes-graphics/graphviz/graphviz_2.50.0.bb
@@ -17,7 +17,7 @@ DEPENDS = " \
 DEPENDS:append:class-target = " ${BPN}-native"
 DEPENDS:append:class-nativesdk = " ${BPN}-native"
 
-inherit autotools-brokensep pkgconfig gettext
+inherit autotools-brokensep pkgconfig gettext qemu
 
 SRC_URI = "https://gitlab.com/api/v4/projects/4207231/packages/generic/${BPN}-releases/${PV}/${BP}.tar.xz \
            "
@@ -81,6 +81,23 @@ graphviz_sstate_postinst() {
 }
 SYSROOT_PREPROCESS_FUNCS:append:class-native = " graphviz_sstate_postinst"
 
+pkg_postinst:${PN} () {
+    if [ -n "$D" ]; then
+        if ${@bb.utils.contains('MACHINE_FEATURES', 'qemu-usermode', 'true', 'false', d)}; then
+            ${@qemu_run_binary(d, '$D', '${bindir}/dot')} -c
+        fi
+    else
+        dot -c
+    fi
+}
+
+pkg_postrm:${PN} () {
+    rm -f $D${libdir}/graphviz/config*
+    rmdir --ignore-fail-on-non-empty $D${libdir}/graphviz
+}
+
+PACKAGE_WRITE_DEPS += "qemu-native"
+
 PACKAGES =+ "${PN}-python ${PN}-perl ${PN}-demo"
 
 FILES:${PN}-python += "${libdir}/python*/site-packages/ ${libdir}/graphviz/python/"

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-- 
Kai Kang
Wind River Linux