Fixes the build for mxe-cross-builds, and if building shared libraries.

3 files changed, 27 insertions, 2 deletions

diff --git a/libcmix-crypto/elgamal/CMakeLists.txt b/libcmix-crypto/elgamal/CMakeLists.txt
index 88f5ba8..b92e5ae 100644
--- a/libcmix-crypto/elgamal/CMakeLists.txt
+++ b/libcmix-crypto/elgamal/CMakeLists.txt
@@ -25,5 +25,6 @@ target_include_directories(elgamal-implementation
 )
 
 target_link_libraries(elgamal-implementation
+	PUBLIC elgamal-interface
 	PUBLIC elgamal-${elgamal_implementation}
-)	
+)
diff --git a/libcmix-crypto/elgamal/null/CMakeLists.txt b/libcmix-crypto/elgamal/null/CMakeLists.txt
index 39db0f0..76cd77c 100644
--- a/libcmix-crypto/elgamal/null/CMakeLists.txt
+++ b/libcmix-crypto/elgamal/null/CMakeLists.txt
@@ -11,6 +11,5 @@ target_compile_options(${target_name}
 )
 
 target_link_libraries(${target_name}
-	INTERFACE cmix-crypto
 	PRIVATE elgamal-interface
 )
diff --git a/libcmix-crypto/elgamal/null/null_elgamal.c b/libcmix-crypto/elgamal/null/null_elgamal.c
index e69de29..ef98912 100644
--- a/libcmix-crypto/elgamal/null/null_elgamal.c
+++ b/libcmix-crypto/elgamal/null/null_elgamal.c
@@ -0,0 +1,25 @@
+
+#include "api.h"
+
+#include <stddef.h>
+#include <stdbool.h>
+
+void elgamal_keypair_deleter(struct KeyPair p) {}
+
+struct KeyPair elgamal_create_keypair() {
+	return (struct KeyPair){
+		NULL,
+		NULL,
+		0,
+		0
+	};
+}
+
+void elgamal_shared_key_deleter(struct SharedKey s) {}
+
+struct SharedKey elgamal_derive_shared_key(struct KeyPair pair, unsigned char* pub_key, bool swap_pub_order) {
+	return (struct SharedKey){
+		NULL,
+		0
+	};
+}