docs: Update 3 files

README.md

@@ -75,7 +75,7 @@ cd build-base
 
 - **ipdemo**: Demonstrates Drogon HTTP utilities and JSON processing
 - **test_libs**: Tests all available libraries (fmt, spdlog, SQLite3, etc.)
-- **cprdemo**: Example using CPR library for HTTP requests (work in progress)
+- **cprdemo**: Example using CPR library for HTTP requests
 
 ### Environment Variables
 

build-base/Dockerfile.dropshell-build-base

@@ -134,8 +134,26 @@ WORKDIR /tmp
 RUN curl -LO https://curl.se/download/curl-${CURL_VERSION}.tar.gz && \
     tar xzf curl-${CURL_VERSION}.tar.gz && \
     cd curl-${CURL_VERSION} && \
-    ./configure --disable-shared --enable-static --with-ssl=/usr/local --prefix=/usr/local \
-        --with-zlib --with-zstd && \
+    mkdir build && cd build && \
+    cmake .. \
+        -DCMAKE_BUILD_TYPE=Release \
+        -DBUILD_SHARED_LIBS=OFF \
+        -DCMAKE_POSITION_INDEPENDENT_CODE=ON \
+        -DCMAKE_INSTALL_PREFIX=/usr/local \
+        -DCURL_STATICLIB=ON \
+        -DCURL_USE_OPENSSL=ON \
+        -DOPENSSL_ROOT_DIR=/usr/local \
+        -DOPENSSL_USE_STATIC_LIBS=TRUE \
+        -DCURL_ZLIB=ON \
+        -DCURL_ZSTD=ON \
+        -DZLIB_LIBRARY=/usr/lib/libz.a \
+        -DZLIB_INCLUDE_DIR=/usr/include \
+        -Dzstd_LIBRARY=/usr/lib/libzstd.a \
+        -Dzstd_INCLUDE_DIR=/usr/include \
+        -DCMAKE_FIND_LIBRARY_SUFFIXES=".a" \
+        -DBUILD_CURL_EXE=OFF \
+        -DBUILD_TESTING=OFF \
+        -DCURL_ENABLE_EXPORT_TARGET=ON && \
     make -j$(nproc) && \
     make install && \
     cd / && rm -rf /tmp/curl-${CURL_VERSION} /tmp/curl-${CURL_VERSION}.tar.gz
@@ -157,7 +175,10 @@ RUN curl -LO https://github.com/libcpr/cpr/archive/refs/tags/${CPR_VERSION}.tar.
         -DCURL_INCLUDE_DIR=/usr/local/include \
         -DCURL_LIBRARY=/usr/local/lib/libcurl.a \
         -DOPENSSL_ROOT_DIR=/usr/local \
-        -DOPENSSL_USE_STATIC_LIBS=TRUE && \
+        -DOPENSSL_USE_STATIC_LIBS=TRUE \
+        -DCMAKE_FIND_LIBRARY_SUFFIXES=".a" \
+        -DZLIB_LIBRARY=/usr/lib/libz.a \
+        -Dzstd_LIBRARY=/usr/lib/libzstd.a && \
     make -j$(nproc) && \
     make install && \
     cd / && rm -rf /tmp/cpr-${CPR_VERSION} /tmp/${CPR_VERSION}.tar.gz

tests/cprdemo/CMakeLists.txt

@@ -36,28 +36,26 @@ target_include_directories(${PROJECT_NAME} PRIVATE
 
 # Find packages
 find_package(OpenSSL REQUIRED)
-find_package(PkgConfig REQUIRED)
 find_package(nlohmann_json REQUIRED)
+find_package(PkgConfig REQUIRED)
 
-# Find CURL manually since we built it without CMake targets
-find_library(CURL_LIBRARY NAMES curl libcurl PATHS /usr/local/lib NO_DEFAULT_PATH)
-find_path(CURL_INCLUDE_DIR NAMES curl/curl.h PATHS /usr/local/include NO_DEFAULT_PATH)
+# Use pkg-config for libcurl since CMake config isn't available
+pkg_check_modules(CURL REQUIRED libcurl)
 
-# Create CURL target if not found
-if(NOT TARGET CURL::libcurl)
-    add_library(CURL::libcurl STATIC IMPORTED)
-    set_target_properties(CURL::libcurl PROPERTIES
-        IMPORTED_LOCATION ${CURL_LIBRARY}
-        INTERFACE_INCLUDE_DIRECTORIES ${CURL_INCLUDE_DIR}
-        INTERFACE_LINK_LIBRARIES "/usr/lib/libz.a;/usr/lib/libzstd.a"
-    )
-endif()
+# Create a static-only CPR target to avoid dynamic linking issues
+add_library(cpr::cpr_static STATIC IMPORTED)
+set_target_properties(cpr::cpr_static PROPERTIES
+    IMPORTED_LOCATION "/usr/local/lib/libcpr.a"
+    INTERFACE_INCLUDE_DIRECTORIES "/usr/local/include"
+)
 
-# Find CPR after CURL target is available
-find_package(cpr REQUIRED)
-
-# Link libraries
+# Link libraries with explicit static linking
 target_link_libraries(${PROJECT_NAME} PRIVATE
     nlohmann_json::nlohmann_json 
-    cpr::cpr
+    cpr::cpr_static
+    /usr/local/lib/libcurl.a
+    /usr/local/lib64/libssl.a
+    /usr/local/lib64/libcrypto.a
+    /usr/lib/libz.a
+    /usr/lib/libzstd.a
     lzma dl)