diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7bc0bb2..5378a0a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -30,6 +30,7 @@ set(GettextTranslate_ALL 1)
 set(GettextTranslate_GMO_BINARY 1)
 
 set_property(GLOBAL PROPERTY ALLOW_DUPLICATE_CUSTOM_TARGETS ON)
+add_definitions(-DCRITERION_BUILDING_DLL=1)
 
 set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -Wextra -Werror -g -std=gnu99")
 
diff --git a/include/criterion/abort.h b/include/criterion/abort.h
index f20e300..1df05c0 100644
--- a/include/criterion/abort.h
+++ b/include/criterion/abort.h
@@ -26,6 +26,6 @@
 
 # include "common.h"
 
-NORETURN void criterion_abort_test(void);
+CR_API NORETURN void criterion_abort_test(void);
 
 #endif /* !CRITERION_ABORT_H_ */
diff --git a/include/criterion/common.h b/include/criterion/common.h
index 2a1a630..238a9c2 100644
--- a/include/criterion/common.h
+++ b/include/criterion/common.h
@@ -111,4 +111,29 @@
 #  define FORMAT(Archetype, Index, Ftc)
 # endif
 
+# if defined _WIN32 || defined __CYGWIN__
+#  ifdef CRITERION_BUILDING_DLL
+#   ifdef __GNUC__
+#    define CR_API __attribute__ ((dllexport))
+#   else
+#    define CR_API __declspec(dllexport)
+#   endif
+#  else
+#   ifdef __GNUC__
+#    define CR_API __attribute__ ((dllimport))
+#   else
+#    define CR_API __declspec(dllimport)
+#   endif
+#  endif
+#  define CR_LOCAL
+# else
+#  if __GNUC__ >= 4
+#   define CR_API __attribute__ ((visibility ("default")))
+#   define CR_LOCAL  __attribute__ ((visibility ("hidden")))
+#  else
+#   define CR_API
+#   define CR_LOCAL
+#  endif
+# endif
+
 #endif /* !CRITERION_COMMON_H_ */
diff --git a/include/criterion/criterion.h b/include/criterion/criterion.h
index e68f841..51c82fd 100644
--- a/include/criterion/criterion.h
+++ b/include/criterion/criterion.h
@@ -67,6 +67,6 @@
         .data     = &SUITE_IDENTIFIER_(Name, extra),                           \
     } SECTION_SUFFIX_
 
-int criterion_run_all_tests(void);
+CR_API int criterion_run_all_tests(void);
 
 #endif /* !CRITERION_H_ */
diff --git a/include/criterion/event.h b/include/criterion/event.h
index 99c85c8..db6cfe3 100644
--- a/include/criterion/event.h
+++ b/include/criterion/event.h
@@ -26,9 +26,10 @@
 
 # include <stddef.h>
 # include <stdio.h>
+# include "common.h"
 
 extern FILE *g_event_pipe;
 
-void send_event(int kind, void *data, size_t size);
+CR_API void send_event(int kind, void *data, size_t size);
 
 #endif /* !CRITERION_EVENT_H_ */
diff --git a/include/criterion/logging.h b/include/criterion/logging.h
index 667bca9..c5bea18 100644
--- a/include/criterion/logging.h
+++ b/include/criterion/logging.h
@@ -76,13 +76,13 @@ extern const struct criterion_prefix_data g_criterion_logging_prefixes[];
 # define CRITERION_PREFIX_PASS   (&g_criterion_logging_prefixes[CRITERION_LOGGING_PREFIX_PASS  ])
 # define CRITERION_PREFIX_FAIL   (&g_criterion_logging_prefixes[CRITERION_LOGGING_PREFIX_FAIL  ])
 
-void criterion_vlog(enum criterion_logging_level level, const char *msg, va_list args);
+CR_API void criterion_vlog(enum criterion_logging_level level, const char *msg, va_list args);
 
 FORMAT(printf, 3, 4)
-void criterion_plog(enum criterion_logging_level level, const struct criterion_prefix_data *prefix, const char *msg, ...);
+CR_API void criterion_plog(enum criterion_logging_level level, const struct criterion_prefix_data *prefix, const char *msg, ...);
 
 FORMAT(printf, 2, 3)
-void criterion_log(enum criterion_logging_level level, const char *msg, ...);
+CR_API void criterion_log(enum criterion_logging_level level, const char *msg, ...);
 
 # define criterion_info(...) criterion_log(CRITERION_INFO, __VA_ARGS__)
 # define criterion_important(...) criterion_log(CRITERION_IMPORTANT, __VA_ARGS__)
diff --git a/include/criterion/ordered-set.h b/include/criterion/ordered-set.h
index 4b71081..514f601 100644
--- a/include/criterion/ordered-set.h
+++ b/include/criterion/ordered-set.h
@@ -50,10 +50,10 @@ struct criterion_test_set {
     size_t tests;
 };
 
-struct criterion_ordered_set *new_ordered_set(f_criterion_cmp cmp,
+CR_API struct criterion_ordered_set *new_ordered_set(f_criterion_cmp cmp,
                                               void (*dtor)(void *, void *));
 
-void *insert_ordered_set(struct criterion_ordered_set *l,
+CR_API void *insert_ordered_set(struct criterion_ordered_set *l,
                          void *ptr,
                          size_t size);
 
diff --git a/include/criterion/theories.h b/include/criterion/theories.h
index 3f7cd80..ab98781 100644
--- a/include/criterion/theories.h
+++ b/include/criterion/theories.h
@@ -29,14 +29,14 @@
 
 struct criterion_theory_context;
 
-struct criterion_theory_context* cr_theory_init(void);
-void cr_theory_push_arg(struct criterion_theory_context *ctx, bool is_float, size_t size, void *ptr);
-void cr_theory_free(struct criterion_theory_context *ctx);
-void cr_theory_abort(void);
-int cr_theory_mark(void);
+CR_API struct criterion_theory_context* cr_theory_init(void);
+CR_API void cr_theory_push_arg(struct criterion_theory_context *ctx, bool is_float, size_t size, void *ptr);
+CR_API void cr_theory_free(struct criterion_theory_context *ctx);
+CR_API void cr_theory_abort(void);
+CR_API int cr_theory_mark(void);
 
-void cr_theory_reset(struct criterion_theory_context *ctx);
-void cr_theory_call(struct criterion_theory_context *ctx, void (*fnptr)(void));
+CR_API void cr_theory_reset(struct criterion_theory_context *ctx);
+CR_API void cr_theory_call(struct criterion_theory_context *ctx, void (*fnptr)(void));
 
 # define TheoryDataPoints(Category, Name) \
     static struct criterion_datapoints IDENTIFIER_(Category, Name, dps)[]
@@ -64,7 +64,7 @@ struct criterion_datapoints {
             cr_theory_abort(); \
     } while (0);
 
-void cr_theory_main(struct criterion_datapoints *dps, size_t datapoints, void (*fnptr)(void));
+CR_API void cr_theory_main(struct criterion_datapoints *dps, size_t datapoints, void (*fnptr)(void));
 
 # define CR_VAARG_ID(Suffix, Category, Name, ...) \
     IDENTIFIER_(Category, Name, Suffix)