diff --git a/deps/dablooms/CMakeLists.txt b/deps/dablooms/CMakeLists.txt
index e0618d7..f8dee88 100644
--- a/deps/dablooms/CMakeLists.txt
+++ b/deps/dablooms/CMakeLists.txt
@@ -1,5 +1,5 @@
-add_library(dablooms dablooms.cpp murmur.cpp)
+add_library(dablooms dablooms.c murmur.c)
 target_include_directories(dablooms PUBLIC ${CMAKE_CURRENT_LIST_DIR})
-target_link_libraries(dablooms)
+target_link_libraries(dablooms m)
 
 add_subdirectory(test)
\ No newline at end of file
diff --git a/deps/dablooms/dablooms.cpp b/deps/dablooms/dablooms.c
similarity index 100%
rename from deps/dablooms/dablooms.cpp
rename to deps/dablooms/dablooms.c
diff --git a/deps/dablooms/murmur.cpp b/deps/dablooms/murmur.c
similarity index 91%
rename from deps/dablooms/murmur.cpp
rename to deps/dablooms/murmur.c
index 83baeb4..02e942f 100644
--- a/deps/dablooms/murmur.cpp
+++ b/deps/dablooms/murmur.c
@@ -92,50 +92,50 @@ void MurmurHash3_x64_128(const void *key, const int len, const uint32_t seed, vo
 	{
 	case 15:
 		k2 ^= ((uint64_t)tail[14]) << 48;
-		[[fallthrough]];
+		/* fallthrough */
 	case 14:
 		k2 ^= ((uint64_t)tail[13]) << 40;
-		[[fallthrough]];
+		/* fallthrough */
 	case 13:
 		k2 ^= ((uint64_t)tail[12]) << 32;
-		[[fallthrough]];
+		/* fallthrough */
 	case 12:
 		k2 ^= ((uint64_t)tail[11]) << 24;
-		[[fallthrough]];
+		/* fallthrough */
 	case 11:
 		k2 ^= ((uint64_t)tail[10]) << 16;
-		[[fallthrough]];
+		/* fallthrough */
 	case 10:
 		k2 ^= ((uint64_t)tail[9]) << 8;
-		[[fallthrough]];
+		/* fallthrough */
 	case 9:
 		k2 ^= ((uint64_t)tail[8]) << 0;
 		k2 *= c2;
 		k2 = ROTL64(k2, 33);
 		k2 *= c1;
 		h2 ^= k2;
-		[[fallthrough]];
+		/* fallthrough */
 	case 8:
 		k1 ^= ((uint64_t)tail[7]) << 56;
-		[[fallthrough]];
+		/* fallthrough */
 	case 7:
 		k1 ^= ((uint64_t)tail[6]) << 48;
-		[[fallthrough]];
+		/* fallthrough */
 	case 6:
 		k1 ^= ((uint64_t)tail[5]) << 40;
-		[[fallthrough]];
+		/* fallthrough */
 	case 5:
 		k1 ^= ((uint64_t)tail[4]) << 32;
-		[[fallthrough]];
+		/* fallthrough */
 	case 4:
 		k1 ^= ((uint64_t)tail[3]) << 24;
-		[[fallthrough]];
+		/* fallthrough */
 	case 3:
 		k1 ^= ((uint64_t)tail[2]) << 16;
-		[[fallthrough]];
+		/* fallthrough */
 	case 2:
 		k1 ^= ((uint64_t)tail[1]) << 8;
-		[[fallthrough]];
+		/* fallthrough */
 	case 1:
 		k1 ^= ((uint64_t)tail[0]) << 0;
 		k1 *= c1;
diff --git a/deps/dablooms/murmur.h b/deps/dablooms/murmur.h
index 6e3c133..f30ac3f 100644
--- a/deps/dablooms/murmur.h
+++ b/deps/dablooms/murmur.h
@@ -5,8 +5,17 @@
 #ifndef _MURMURHASH3_H_
 #define _MURMURHASH3_H_
 
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
 #include <stdint.h>
 
 void MurmurHash3_x64_128(const void *key, int len, uint32_t seed, void *out);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif // _MURMURHASH3_H_
diff --git a/deps/interval_tree/CMakeLists.txt b/deps/interval_tree/CMakeLists.txt
index 2b297fa..8553f14 100644
--- a/deps/interval_tree/CMakeLists.txt
+++ b/deps/interval_tree/CMakeLists.txt
@@ -1,4 +1,4 @@
-add_library(interval_tree STATIC interval_tree.cpp)
+add_library(interval_tree STATIC interval_tree.c)
 target_include_directories(interval_tree PUBLIC ${CMAKE_CURRENT_LIST_DIR})
 target_include_directories(interval_tree PUBLIC ${CMAKE_SOURCE_DIR}/deps/rbtree)
 target_link_libraries(interval_tree rbtree)
diff --git a/deps/interval_tree/interval_tree.cpp b/deps/interval_tree/interval_tree.c
similarity index 100%
rename from deps/interval_tree/interval_tree.cpp
rename to deps/interval_tree/interval_tree.c
diff --git a/deps/interval_tree/interval_tree_generic.h b/deps/interval_tree/interval_tree_generic.h
index bf452c8..0c04395 100644
--- a/deps/interval_tree/interval_tree_generic.h
+++ b/deps/interval_tree/interval_tree_generic.h
@@ -12,6 +12,7 @@ extern "C"
 {
 #endif
 
+#include <stdbool.h>
 #include "rbtree_augmented.h"
 
 /*
diff --git a/deps/rbtree/CMakeLists.txt b/deps/rbtree/CMakeLists.txt
index c7debda..c67f638 100644
--- a/deps/rbtree/CMakeLists.txt
+++ b/deps/rbtree/CMakeLists.txt
@@ -1,2 +1,2 @@
-add_library(rbtree STATIC rbtree.cpp)
+add_library(rbtree STATIC rbtree.c)
 target_include_directories(rbtree PUBLIC ${CMAKE_CURRENT_LIST_DIR})
\ No newline at end of file
diff --git a/deps/rbtree/rbtree.cpp b/deps/rbtree/rbtree.c
similarity index 100%
rename from deps/rbtree/rbtree.cpp
rename to deps/rbtree/rbtree.c
diff --git a/deps/rbtree/rbtree.h b/deps/rbtree/rbtree.h
index 3f9b49a..521d652 100644
--- a/deps/rbtree/rbtree.h
+++ b/deps/rbtree/rbtree.h
@@ -22,6 +22,7 @@ extern "C"
 {
 #endif
 
+#include <stdbool.h>
 #include <stdlib.h>
 
 struct rb_node
diff --git a/deps/timeout/CMakeLists.txt b/deps/timeout/CMakeLists.txt
index c105544..af4acd2 100644
--- a/deps/timeout/CMakeLists.txt
+++ b/deps/timeout/CMakeLists.txt
@@ -1,2 +1,2 @@
-add_library(timeout STATIC timeout.cpp timeout-bitops.cpp)
+add_library(timeout STATIC timeout.c timeout-bitops.c)
 target_include_directories(timeout PUBLIC ${CMAKE_CURRENT_LIST_DIR})
\ No newline at end of file
diff --git a/deps/timeout/timeout-bitops.cpp b/deps/timeout/timeout-bitops.c
similarity index 100%
rename from deps/timeout/timeout-bitops.cpp
rename to deps/timeout/timeout-bitops.c
diff --git a/deps/timeout/timeout.cpp b/deps/timeout/timeout.c
similarity index 99%
rename from deps/timeout/timeout.cpp
rename to deps/timeout/timeout.c
index a2d57b6..d1e76e4 100644
--- a/deps/timeout/timeout.cpp
+++ b/deps/timeout/timeout.c
@@ -136,7 +136,7 @@
 #define WHEEL_MASK (WHEEL_LEN - 1)
 #define TIMEOUT_MAX ((TIMEOUT_C(1) << (WHEEL_BIT * WHEEL_NUM)) - 1)
 
-#include "timeout-bitops.cpp"
+#include "timeout-bitops.c"
 
 #if WHEEL_BIT == 6
 #define ctz(n) ctz64(n)
diff --git a/deps/toml/CMakeLists.txt b/deps/toml/CMakeLists.txt
index 4c02fa1..0c77b1d 100644
--- a/deps/toml/CMakeLists.txt
+++ b/deps/toml/CMakeLists.txt
@@ -1,3 +1,3 @@
-add_library(toml toml.cpp)
+add_library(toml toml.c)
 target_include_directories(toml PUBLIC ${CMAKE_CURRENT_LIST_DIR})
 target_link_libraries(toml)
\ No newline at end of file
diff --git a/deps/toml/toml.cpp b/deps/toml/toml.c
similarity index 100%
rename from deps/toml/toml.cpp
rename to deps/toml/toml.c