JNI built in JNI

jni/build.sh

@@ -0,0 +1,36 @@
+#!/usr/bin/env bash
+set -e
+
+[[ -z "$TARGET" ]] && echo "Please set the TARGET variable" && exit 1
+
+if [ "$(id -u)" == "0" ]; then
+  [[ -z "$TO_UID" ]] && echo "Please set the TO_UID variable" && exit 1
+fi
+
+cd "$(dirname "$0")"
+
+CC=gcc
+JNI_HEADERS=$TARGET
+
+if [ "$TARGET" == "linux" ]; then
+  OUTFILE=libsecp256k1-jni.so
+  ADD_LIB=-lgmp
+elif [ "$TARGET" == "darwin" ]; then
+  OUTFILE=libsecp256k1-jni.dylib
+  if [ -z "$CROSS_TRIPLE" ]; then
+    ADD_LIB=-lgmp
+  fi
+elif [ "$TARGET" == "mingw" ]; then
+  OUTFILE=secp256k1-jni.dll
+  CC=/usr/src/mxe/usr/bin/x86_64-w64-mingw32.static-gcc
+  JNI_HEADERS=linux
+  CC_OPTS="-fpic"
+fi
+
+mkdir -p build/jni/$TARGET
+
+$CC -shared $CC_OPTS -o build/jni/$TARGET/$OUTFILE c/src/org_bitcoin_Secp256k1CFunctions.c -Ic/headers/ -Ic/headers/java -Ic/headers/$JNI_HEADERS/ -I../native/secp256k1/ -lsecp256k1 -L../native/build/$TARGET/ $ADD_LIB
+
+[[ ! -z "$TO_UID" ]] && chown -R $TO_UID:$TO_UID .
+
+echo "Build done for $TARGET"