civetweb: Add new recipe with git-based version

Add recipe for CivetWeb: easy to use, powerful, C/C++ embeddable web
server with optional CGI, SSL and Lua support, under MIT license.

CivetWeb provides C and C++ libraries and a standalone server binary.

Choose specific post-v1.10 git revision b8148afe8fa4 which has a fixed
SSL support (depending on OpenSSL v1.0.2).

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-networking/recipes-connectivity/civetweb/civetweb/0001-Test-Fix-missing-librt-and-libm-during-native-compil.patch

@@ -0,0 +1,42 @@
+From cd93e2c538cecb3192fd24c0fbd6e834d0c47eec Mon Sep 17 00:00:00 2001
+From: Krzysztof Kozlowski <krzk@kernel.org>
+Date: Wed, 18 Apr 2018 14:11:52 +0200
+Subject: [PATCH] Unittest: Fix missing librt and libm during native compilation
+
+civetweb looks for librt and libm in weird places and for native build
+this fails:
+
+    | ../third_party/lib/libcheck.a(check.c.o): In function `tcase_create':
+    | build/tmp/work/x86_64-linux/civetweb-native/1.10-r0/build/third_party/src/check-unit-test-framework/src/check.c:145: undefined reference to `floor'
+    | build/tmp/work/x86_64-linux/civetweb-native/1.10-r0/build/third_party/src/check-unit-test-framework/src/check.c:148: undefined reference to `floor'
+
+These are needed dependencies so try regular system linkage in such
+case.
+
+Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
+---
+ unittest/CMakeLists.txt | 4 ++++
+ 1 file changed, 4 insertions(+)
+
+diff --git a/unittest/CMakeLists.txt b/unittest/CMakeLists.txt
+index f34b2e0e4ce4..05d25702178c 100644
+--- a/unittest/CMakeLists.txt
++++ b/unittest/CMakeLists.txt
+@@ -60,10 +60,14 @@ endif()
+ find_package(LibM)
+ if (LIBM_FOUND)
+   set(CHECK_LIBRARIES "${CHECK_LIBRARIES};LIBM::LIBM")
++else()
++  set(CHECK_LIBRARIES "${CHECK_LIBRARIES};-lm")
+ endif()
+ find_package(LibRt)
+ if (LIBRT_FOUND)
+   set(CHECK_LIBRARIES "${CHECK_LIBRARIES};LIBRT::LIBRT")
++else()
++  set(CHECK_LIBRARIES "${CHECK_LIBRARIES};-lrt")
+ endif()
+ 
+ # Build the C unit tests
+-- 
+2.7.4
+

meta-networking/recipes-connectivity/civetweb/civetweb_git.bb

@@ -0,0 +1,47 @@
+SUMMARY = "Civetweb embedded web server"
+HOMEPAGE = "https://github.com/civetweb/civetweb"
+
+LICENSE = "MIT"
+LIC_FILES_CHKSUM = "file://LICENSE.md;md5=6f28fdcba0dda735eed62bac6a397562"
+
+SRCREV = "b8148afe8fa44c64f75e69655c4fdc9095565568"
+PV = "1.10+git${SRCPV}"
+SRC_URI = "git://github.com/civetweb/civetweb.git"
+SRC_URI_append_class-native = " \
+    file://0001-Test-Fix-missing-librt-and-libm-during-native-compil.patch \
+"
+S = "${WORKDIR}/git"
+
+# civetweb supports building with make or cmake (although cmake lacks few features)
+inherit cmake
+
+# Disable Lua and Duktape because they do not compile from CMake (as of v1.8, v1.9 and v1.10).
+# Disable ASAN as it is included only in Debug build.
+EXTRA_OECMAKE = " \
+    -DBUILD_SHARED_LIBS=ON \
+    -DCIVETWEB_ENABLE_DUKTAPE=OFF \
+    -DCIVETWEB_ENABLE_LUA=OFF \
+    -DCIVETWEB_ENABLE_ASAN=OFF \
+"
+EXTRA_OECMAKE_class-native = " \
+    -DBUILD_SHARED_LIBS=ON \
+    -DCIVETWEB_ENABLE_DUKTAPE=OFF \
+    -DCIVETWEB_ENABLE_LUA=OFF \
+    -DCIVETWEB_ENABLE_ASAN=OFF \
+"
+
+# Building with ninja fails on missing third_party/lib/libcheck.a (which
+# should come from external CMake project)
+OECMAKE_GENERATOR = "Unix Makefiles"
+
+PACKAGECONFIG ??= "caching ipv6 server ssl websockets"
+PACKAGECONFIG[caching] = "-DCIVETWEB_DISABLE_CACHING=OFF,-DCIVETWEB_DISABLE_CACHING=ON,"
+PACKAGECONFIG[cgi] = "-DCIVETWEB_DISABLE_CGI=OFF,-DCIVETWEB_DISABLE_CGI=ON,"
+PACKAGECONFIG[cpp] = "-DCIVETWEB_ENABLE_CXX=ON,-DCIVETWEB_ENABLE_CXX=OFF,"
+PACKAGECONFIG[debug] = "-DCIVETWEB_ENABLE_MEMORY_DEBUGGING=ON,-DCIVETWEB_ENABLE_MEMORY_DEBUGGING=OFF,"
+PACKAGECONFIG[ipv6] = "-DCIVETWEB_ENABLE_IPV6=ON,-DCIVETWEB_ENABLE_IPV6=OFF,"
+PACKAGECONFIG[server] = "-DCIVETWEB_INSTALL_EXECUTABLE=ON,-DCIVETWEB_INSTALL_EXECUTABLE=OFF,"
+PACKAGECONFIG[ssl] = "-DCIVETWEB_ENABLE_SSL=ON -DCIVETWEB_SSL_OPENSSL_API_1_1=OFF -DCIVETWEB_ENABLE_SSL_DYNAMIC_LOADING=OFF,-DCIVETWEB_ENABLE_SSL=OFF,openssl (=1.0.2%),"
+PACKAGECONFIG[websockets] = "-DCIVETWEB_ENABLE_WEBSOCKETS=ON,-DCIVETWEB_ENABLE_WEBSOCKETS=OFF,"
+
+BBCLASSEXTEND = "native"