yet another variant of the c library. now the header has to be generated manually.

examples/lang_c/.gitignore

@@ -1,4 +0,0 @@
-.idea
-out
-rust-target
-include

examples/lang_c/Makefile

@@ -1,7 +1,9 @@
 ROOT_DIR := $(dir $(realpath $(lastword $(MAKEFILE_LIST))))
-RUST_TARGET_DIR := ${ROOT_DIR}rust-target
-export SP2_INCLUDE_DIR := ${ROOT_DIR}sp2
-OUT_DIR := ${ROOT_DIR}out
+OUT_DIR := ${ROOT_DIR}/out
+
+SP2_DIR := ${ROOT_DIR}/../../servicepoint2
+SP2_INCLUDE := ${SP2_DIR}/include
+SP2_TARGET_RELEASE := ${ROOT_DIR}/../../target/release
 
 .PHONY: clean
 
@@ -10,14 +12,14 @@ run: ${OUT_DIR}/lang_c
 
 all: ${OUT_DIR}/lang_c
 
-${OUT_DIR}/lang_c: ${SP2_INCLUDE_DIR}/sp2-bindings.h main.c
+${OUT_DIR}/lang_c: ${SP2_TARGET_RELEASE} main.c
 	mkdir -p ${OUT_DIR}
-	gcc ${SP2_INCLUDE_DIR}/sp2-bindings.h main.c -L ${RUST_TARGET_DIR}/release/ -Wl,-Bstatic -l servicepoint2 -Wl,-Bdynamic  -o ${OUT_DIR}/lang_c --verbose
+	gcc main.c -I ${SP2_INCLUDE} -L ${SP2_TARGET_RELEASE} -Wl,-Bstatic -lservicepoint2 -Wl,-Bdynamic -o ${OUT_DIR}/lang_c
 
-${SP2_INCLUDE_DIR}/sp2-bindings.h:
-	cd ../../servicepoint2/ && cargo build --release --target-dir ${RUST_TARGET_DIR} --all-features
+${SP2_TARGET_RELEASE}:
+	cd ${SP2_DIR} && cargo build --release --all-features
 
 clean:
 	rm -r ${SP2_INCLUDE_DIR} || true
 	rm -r ${OUT_DIR} || true
-	rm -r ${RUST_TARGET_DIR} || true
+	rm -r ${SP2_TARGET_RELEASE} || true

examples/lang_c/main.c

@@ -1,5 +1,5 @@
 #include <stdio.h>
-#include "sp2/sp2-bindings.h"
+#include "servicepoint2.h"
 
 int main(void) {
     sp2_Connection *connection = sp2_connection_open("localhost:2342");