fixup: fix compile error with multiple inlines

Author: not-matthias

core/include/measurement.hpp

@@ -8,7 +8,7 @@
 #define ALWAYS_INLINE __forceinline
 #else
 #include <unistd.h>
-#define ALWAYS_INLINE __attribute__((always_inline))
+#define ALWAYS_INLINE __attribute__((always_inline)) inline
 #endif
 
 extern "C" {
@@ -36,16 +36,15 @@ inline void measurement_set_metadata() {
   instrument_hooks_set_integration(g_hooks, "codspeed-cpp", version.c_str());
 }
 
-ALWAYS_INLINE inline void measurement_start() {
+ALWAYS_INLINE void measurement_start() {
   instrument_hooks_start_benchmark_inline(g_hooks);
 }
 
-ALWAYS_INLINE inline void measurement_stop() {
+ALWAYS_INLINE void measurement_stop() {
   instrument_hooks_stop_benchmark_inline(g_hooks);
 }
 
-ALWAYS_INLINE inline void measurement_set_executed_benchmark(
-    const std::string& name) {
+ALWAYS_INLINE void measurement_set_executed_benchmark(const std::string& name) {
   auto current_pid = getpid();
   instrument_hooks_executed_benchmark(g_hooks, current_pid, name.c_str());
 }