fix: Resolved windows build issues.

Author: amunra

CMakeLists.txt

@@ -22,6 +22,7 @@ option(
     OFF)
 
 # Build static and dynamic lib written in Rust by invoking `cargo`.
+# Imports `questdb_client` target.
 add_subdirectory(corrosion)
 corrosion_import_crate(
     MANIFEST_PATH Cargo.toml
@@ -30,6 +31,15 @@ corrosion_import_crate(
 target_include_directories(
     questdb_client INTERFACE
     ${CMAKE_CURRENT_SOURCE_DIR}/include)
+if(WIN32)
+    set_target_properties(
+        questdb_client-shared
+        PROPERTIES
+        DEFINE_SYMBOL "LINESENDER_DYN_LIB")
+    target_link_libraries(
+        questdb_client-shared
+        INTERFACE wsock32 ws2_32)
+endif(WIN32)
 
 function(set_compile_flags TARGET_NAME)
     if(MSVC)

include/questdb/ilp/line_sender.h

@@ -32,25 +32,15 @@ extern "C" {
 #include <stddef.h>
 #include <stdbool.h>
 
-#if defined(LINESENDER_DYN_LIB)
-#    if defined(_MSC_VER)
-#        if defined(LINESENDER_EXPORTS)
-#            define LINESENDER_API __declspec(dllexport)
-#        else
-#            define LINESENDER_API __declspec(dllimport)
-#        endif
-#    elif (__GNUC__ >= 4)
-#        define LINESENDER_API __attribute__ ((visibility("default")))
-#    else
-#        error "Compiler unsupported or badly detected."
-#    endif
+#if defined(LINESENDER_DYN_LIB) && defined(_MSC_VER)
+#    define LINESENDER_API __declspec(dllimport)
 #else
 #    define LINESENDER_API
 #endif
 
 
 /////////// Error handling.
-/** An error that occured when using the line sender. */
+/** An error that occurred when using the line sender. */
 typedef struct line_sender_error line_sender_error;
 
 /** Category of error. */