Add wrapper for memcpy for linux x86_64 build so the library can be build on a new linux machine without enforcing a dependency on GLIBC 2.14

src/main/c/build/common.sh

@@ -75,5 +75,5 @@ build()
     chmod -x "$DISTDIR/"*
 
     # Cleanup
-#    rm -rf "$TMPDIR"
+    rm -rf "$TMPDIR"
 }

src/main/c/build/linux-x86_64.sh

@@ -9,8 +9,9 @@ set -e
 OS="linux"
 ARCH="x86_64"
 HOST="$ARCH-$OS-gnu"
-CFLAGS="-m64"
+CFLAGS="-m64 -Wl,--wrap=memcpy"
 LIBUSB_CONFIG="--disable-shared"
 USB4JAVA_LIBS="-lrt"
+USB4JAVA_CFLAGS="-DWRAP_MEMCPY"
 
 build

src/main/c/src/Makefile.am

@@ -4,6 +4,7 @@ libusb4java_la_LIBADD = $(LIBUSB_LIBS)
 libusb4java_la_LDFLAGS = -version-info 1:0:0 -no-undefined
 EXTRA_DIST = *.h
 libusb4java_la_SOURCES = \
+    wrappers.c \
     usb4java.c \
     LibUsb.c \
     Version.c \

src/main/c/src/wrappers.c

@@ -0,0 +1,15 @@
+/*
+ * Copyright (C) 2013 Klaus Reimer (k@ailis.de)
+ * See COPYING file for copying conditions
+ */
+
+#include <string.h>
+
+// Enforce usage of older memcpy to be compatible with older libc versions
+#if WRAP_MEMCPY
+asm (".symver memcpy, memcpy@GLIBC_2.2.5");
+void *__wrap_memcpy(void *dest, const void *src, size_t n)
+{
+    return memcpy(dest, src, n);
+}
+#endif