2 files changed, 17 insertions, 10 deletions
diff --git a/v4l2-apps/lib/libv4l/libv4l1/Makefile b/v4l2-apps/lib/libv4l/libv4l1/Makefile
index 769811ade..d12e747fb 100644
--- a/v4l2-apps/lib/libv4l/libv4l1/Makefile
+++ b/v4l2-apps/lib/libv4l/libv4l1/Makefile
@@ -1,4 +1,4 @@
-override CPPFLAGS += -I../include -I../../../../linux/include
+override CPPFLAGS += -I../include -I../../../../linux/include -fvisibility=hidden
 
 CFLAGS := -g -O1
 CFLAGS += -Wall -Wno-unused -Wpointer-arith -Wstrict-prototypes -Wmissing-prototypes
diff --git a/v4l2-apps/lib/libv4l/libv4l1/v4l1compat.c b/v4l2-apps/lib/libv4l/libv4l1/v4l1compat.c
index 8edc9f9a9..e4293d2f9 100644
--- a/v4l2-apps/lib/libv4l/libv4l1/v4l1compat.c
+++ b/v4l2-apps/lib/libv4l/libv4l1/v4l1compat.c
@@ -34,7 +34,13 @@
 #error open/read/mmap is a prepocessor macro !!
 #endif
 
-int open (const char *file, int oflag, ...)
+#if __GNUC__ >= 4
+#define LIBV4L_PUBLIC __attribute__ ((visibility("default")))
+#else
+#define LIBV4L_PUBLIC
+#endif
+
+LIBV4L_PUBLIC int open (const char *file, int oflag, ...)
 {
   int fd;
 
@@ -55,7 +61,7 @@ int open (const char *file, int oflag, ...)
   return fd;
 }
 
-int open64 (const char *file, int oflag, ...)
+LIBV4L_PUBLIC int open64 (const char *file, int oflag, ...)
 {
   int fd;
 
@@ -76,16 +82,16 @@ int open64 (const char *file, int oflag, ...)
   return fd;
 }
 
-int close(int fd) {
+LIBV4L_PUBLIC int close(int fd) {
   return v4l1_close(fd);
 }
 
-int dup(int fd)
+LIBV4L_PUBLIC int dup(int fd)
 {
   return v4l1_dup(fd);
 }
 
-int ioctl (int fd, unsigned long int request, ...)
+LIBV4L_PUBLIC int ioctl (int fd, unsigned long int request, ...)
 {
   void *arg;
   va_list ap;
@@ -97,24 +103,25 @@ int ioctl (int fd, unsigned long int request, ...)
   return v4l1_ioctl (fd, request, arg);
 }
 
-ssize_t read(int fd, void* buffer, size_t n)
+LIBV4L_PUBLIC ssize_t read(int fd, void* buffer, size_t n)
 {
   return v4l1_read (fd, buffer, n);
 }
 
-void *mmap(void *start, size_t length, int prot, int flags, int fd,
+LIBV4L_PUBLIC void *mmap(void *start, size_t length, int prot, int flags, int fd,
   __off_t offset)
 {
   return v4l1_mmap(start, length, prot, flags, fd, offset);
 }
 
-void *mmap64(void *start, size_t length, int prot, int flags, int fd,
+LIBV4L_PUBLIC void *mmap64(void *start, size_t length, int prot, int flags, int fd,
   __off64_t offset)
 {
   return v4l1_mmap(start, length, prot, flags, fd, offset);
 }
 
-int munmap(void *start, size_t length)
+LIBV4L_PUBLIC int munmap(void *start, size_t length)
 {
   return v4l1_munmap(start, length);
 }
+