feat: add build of p-net from source if available

Author: elupus

recipes-connectivity/p-net/files/.gitignore

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+p-net-sources-1.0.2-20250519.113257-21.zip

recipes-connectivity/p-net/files/README.md

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+# P-Net Yocto Files
+
+Place source code of p-net in `p-net-sources.zip` here
+to build from a source dump.

recipes-connectivity/p-net/p-net-src_1.0.2.bb

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+SUMMARY = "P-Net Profinet communication stack"
+LICENSE = "GPL-3.0-or-later"
+LIC_FILES_CHKSUM = "file://CMakeLists.txt;beginline=1;endline=14;md5=aa7e6f963fad674b02c35dc8e9aa5519"
+SECTION = "libs"
+PROVIDES = "p-net"
+
+SRC_URI = "file://p-net-sources-1.0.2-20250519.113257-21.zip"
+
+# Require activation to use the official stack
+# since this requires available sources.
+DEFAULT_PREFERENCE = "-1"
+
+S = "${WORKDIR}/p-net"
+
+FILES:${PN}-dev += " \
+    ${prefix}/cmake/*.cmake \
+"
+
+FILES:${PN} += " \
+    ${prefix}/share/profinet \
+"
+
+# We need network access to get Osal
+EXTRA_OECMAKE += "-DFETCHCONTENT_FULLY_DISCONNECTED=OFF"
+do_configure[network] =  "1"
+
+# Disable the tests since build fail
+# when cross compiling due to test discovery
+# using GOOGLE_TEST_INDIVIDUAL
+EXTRA_OECMAKE += "-DBUILD_TESTING=OFF"
+
+inherit pkgconfig cmake