build-package.sh: Handle weird file names better

[termux-packages] / ndk_patches / sys-shm.h.patch

--- /home/vishal/Android/Sdk/ndk-bundle/platforms/android-21/arch-arm/usr/include/sys/shm.h	2016-10-12 15:11:58.000000000 +0530
+++ ./usr/include/sys/shm.h	2017-01-24 08:21:49.997228838 +0530
@@ -31,4 +31,17 @@
 
 #include <linux/shm.h>
 
+#ifdef TERMUX_SHMEM_STUBS
+
+#include <sys/syscall.h>
+#include <limits.h>
+
+#define SHMLBA PAGE_SIZE
+#define shmget(key, size, shmflg) syscall(__NR_shmget, key, size, shmflg)
+#define shmctl(shmid, cmd, buf) syscall(__NR_shmctl, shmid, cmd, buf)
+#define shmat(shmid, shmaddr, shmflg) syscall(__NR_shmat, shmid, shmaddr, shmflg)
+#define shmdt(shmaddr) syscall(__NR_shmdt, shmaddr)
+
+#endif /* TERMUX_SHMEM_STUBS */
+
 #endif /* _SYS_SHM_H_ */