[PATCH] python3: RDEPEND on libgcc

[Joshua Watt <jpewhacker@gmail.com>]

Python uses features of glibc that require it to dynamically load (i.e.
dlopen()) libgcc_s at runtime. However, since this isn't a link time
dependency, it doesn't get picked up automatically by bitbake so
manually add it to RDEPENDS.

There is an outstanding bug in Python to make it explicitly link against
libgcc at link time which would remove the need for this. See:
https://bugs.python.org/issue37395

Signed-off-by: Joshua Watt <JPEWhacker@gmail.com>
---
 meta/recipes-devtools/python/python3_3.7.5.bb | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/meta/recipes-devtools/python/python3_3.7.5.bb b/meta/recipes-devtools/python/python3_3.7.5.bb
index 57eaaea5e7..4c8d5134a7 100644
--- a/meta/recipes-devtools/python/python3_3.7.5.bb
+++ b/meta/recipes-devtools/python/python3_3.7.5.bb
@@ -336,6 +336,8 @@ FILES_${PN}-misc = "${libdir}/python${PYTHON_MAJMIN} ${libdir}/python${PYTHON_MA
 PACKAGES += "${PN}-man"
 FILES_${PN}-man = "${datadir}/man"
 
+# See https://bugs.python.org/issue18748 and https://bugs.python.org/issue37395
+RDEPENDS_${PN} = "libgcc"
 RDEPENDS_${PN}-ptest = "${PN}-modules ${PN}-tests unzip bzip2 libgcc tzdata-europe coreutils sed"
 RDEPENDS_${PN}-ptest_append_libc-glibc = " locale-base-tr-tr.iso-8859-9"
 RDEPENDS_${PN}-tkinter += "${@bb.utils.contains('PACKAGECONFIG', 'tk', 'tk tk-lib', '', d)}"
-- 
2.23.0