GitHub actions (#2)

* Updated readme, enabled automatc testing

* Snapshot support

* Release CI support

Co-authored-by: Salomon BRYS <salomon@kodein.net>

native/build.gradle.kts

@@ -25,10 +25,13 @@ val buildSecp256k1Jvm by tasks.creating {
     group = "build"
     buildSecp256k1.dependsOn(this)
 }
+val noCrossCompile: String? by project
 fun creatingBuildSecp256k1(target: String, cross: Cross?) = tasks.creating(Exec::class) {
     group = "build"
     buildSecp256k1Jvm.dependsOn(this)
 
+    if (noCrossCompile == "true") onlyIf { cross == null }
+
     inputs.files(projectDir.resolve("build.sh"))
     outputs.dir(projectDir.resolve("build/$target"))
 

native/build.sh

@@ -12,12 +12,15 @@ cd "$(dirname "$0")"
 cd secp256k1
 
 if [ "$TARGET" == "mingw" ]; then
-  CONF_OPTS="CFLAGS=-fpic --host=x86_64-w64-mingw32"
+  CONF_OPTS="CFLAGS=-fPIC --host=x86_64-w64-mingw32"
 elif [ "$TARGET" == "linux" ]; then
-  CONF_OPTS="CFLAGS=-fpic"
+  CONF_OPTS="CFLAGS=-fPIC"
   [ "$CROSS" == "1" ] && sudo apt -y install libgmp-dev
 elif [ "$TARGET" == "darwin" ]; then
   CONF_OPTS="--host=x86_64-w64-darwin"
+else
+  echo "Unknown TARGET=$TARGET"
+  exit 1
 fi
 
 ./autogen.sh