Fix more build issues

Author: TheAssassin

CMakeLists.txt

@@ -38,6 +38,12 @@ include(GNUInstallDirs)
 
 option(USE_SYSTEM_ZSYNC2 OFF "Use existing libzsync2 installed on system (or inside CMAKE_PREFIX_PATH)")
 if(USE_SYSTEM_ZSYNC2)
+    set(USE_SYSTEM_CPR ON)
+
+    # we use cpr in AppImageUpdate, too
+    find_package(cpr REQUIRED)
+    add_library(cpr ALIAS cpr::cpr)
+
     # note: find_package calls must be made in the same or a parent scope
     find_package(zsync2 REQUIRED)
 endif()

ci/Dockerfile.i386

@@ -14,7 +14,7 @@ RUN apt-get update && \
         build-essential libssl-dev autoconf automake libtool \
         wget vim-common desktop-file-utils pkgconf \
         libglib2.0-dev libcairo2-dev librsvg2-dev libfuse-dev git libcurl4-openssl-dev argagg-dev libgcrypt20-dev && \
-    wget -qO- https://artifacts.assassinate-you.net/prebuilt-cmake/cmake-v3.22.1-ubuntu_xenial-$ARCH.tar.gz | tar xzv -C/ --strip-components=1
+    wget -qO- https://artifacts.assassinate-you.net/prebuilt-cmake/cmake-v3.22.1-ubuntu_xenial-$ARCH.tar.gz | tar xzv -C/usr --strip-components=1
 
 COPY libgcrypt.pc /usr/lib/i386-linux-gnu/pkgconfig/libgcrypt.pc
 RUN sed -i 's|x86_64|i386|g' /usr/lib/i386-linux-gnu/pkgconfig/libgcrypt.pc

ci/Dockerfile.x86_64

@@ -14,7 +14,7 @@ RUN apt-get update && \
         build-essential libssl-dev autoconf automake libtool \
         wget vim-common desktop-file-utils pkgconf \
         libglib2.0-dev libcairo2-dev librsvg2-dev libfuse-dev git libcurl4-openssl-dev argagg-dev libgcrypt20-dev && \
-    wget -qO- https://artifacts.assassinate-you.net/prebuilt-cmake/cmake-v3.22.1-ubuntu_xenial-$ARCH.tar.gz | tar xzv -C/ --strip-components=1
+    wget -qO- https://artifacts.assassinate-you.net/prebuilt-cmake/cmake-v3.22.1-ubuntu_xenial-$ARCH.tar.gz | tar xzv -C/usr --strip-components=1
 
 COPY libgcrypt.pc /usr/lib/x86_64-linux-gnu/pkgconfig/libgcrypt.pc
 

src/CMakeLists.txt

@@ -16,8 +16,6 @@ add_definitions("-DAPPIMAGEUPDATE_GIT_COMMIT=\"${GIT_COMMIT}\"")
 add_definitions("-DBUILD_DATE=\"${DATE}\"")
 add_definitions("-DBUILD_NUMBER=\"${BUILD_NUMBER}\"")
 
-add_subdirectory(util)
-
 if(USE_SYSTEM_LIBAPPIMAGE)
     set(LIBAPPIMAGE_LINK_TYPE PUBLIC)
 else()
@@ -32,6 +30,8 @@ else()
     set(ZSYNC2_LINK_TYPE PRIVATE)
 endif()
 
+add_subdirectory(util)
+
 # core library
 add_library(libappimageupdate SHARED
     ${PROJECT_SOURCE_DIR}/include/appimage/update.h

src/updateinformation/GithubReleasesZsyncUpdateInformation.h

@@ -36,7 +36,7 @@ namespace appimage::update::updateinformation {
                 url << "tags/" << tag;
             }
 
-            auto response = cpr::Get(url.str());
+            auto response = cpr::Get(cpr::Url{url.str()});
 
             // counter that will be evaluated later to give some meaningful feedback why parsing API
             // response might have failed

src/util/CMakeLists.txt

@@ -8,4 +8,4 @@ add_library(util STATIC
 target_include_directories(util PUBLIC
     $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>
 )
-target_link_libraries(util PRIVATE libappimage_shared libzsync2_static)
+target_link_libraries(util PRIVATE libappimage_shared ${ZSYNC2_LIBRARY_NAME} cpr)