File giflib-visibility.patch of Package giflib

--- lib/gif_lib_private.h.orig
+++ lib/gif_lib_private.h
@@ -30,6 +30,8 @@
 #define IS_READABLE(Private)    (Private->FileState & FILE_STATE_READ)
 #define IS_WRITEABLE(Private)   (Private->FileState & FILE_STATE_WRITE)
 
+#pragma GCC visibility push(hidden)
+
 typedef struct GifFilePrivateType {
     GifWord FileState, FileHandle,  /* Where all this data goes to! */
       BitsPerPixel,     /* Bits per pixel (Codes uses at least this + 1). */
@@ -55,5 +57,5 @@ typedef struct GifFilePrivateType {
 } GifFilePrivateType;
 
 extern int _GifError;
-
+#pragma GCC visibility pop
 #endif /* _GIF_LIB_PRIVATE_H */
--- lib/getarg.h.orig
+++ lib/getarg.h
@@ -16,6 +16,8 @@
 #define CMD_ERR_NumRead   4    /* Failed on reading number. */
 #define CMD_ERR_AllSatis  5    /* Fail to satisfy (must-'!') option. */
 
+#pragma GCC visibility push(hidden)
+
 #ifdef HAVE_STDARG_H
 int GAGetArgs(int argc, char **argv, char *CtrlStr, ...);
 #elif defined (HAVE_VARARGS_H)
@@ -25,4 +27,5 @@ int GAGetArgs(int va_alist, ...);
 void GAPrintErrMsg(int Error);
 void GAPrintHowTo(char *CtrlStr);
 
+#pragma GCC visibility pop
 #endif /* _GETARG_H */
--- lib/gif_hash.h.orig
+++ lib/gif_hash.h
@@ -47,6 +47,8 @@
 #define HT_PUT_KEY(l)	(l << 12)
 #define HT_PUT_CODE(l)	(l & 0x0FFF)
 
+#pragma GCC visibility push(hidden)
+
 typedef struct GifHashTableType {
     UINT32 HTable[HT_SIZE];
 } GifHashTableType;
@@ -56,4 +58,6 @@ void _ClearHashTable(GifHashTableType *H
 void _InsertHashTable(GifHashTableType *HashTable, UINT32 Key, int Code);
 int _ExistsHashTable(GifHashTableType *HashTable, UINT32 Key);
 
+#pragma GCC visibility pop
+
 #endif /* _GIF_HASH_H_ */
--- Makefile.am.orig
+++ Makefile.am
@@ -1,3 +1,4 @@
+ACLOCAL_AMFLAGS = -I m4
 SUBDIRS = lib util doc pic
 WINDOWS = $(top_srcdir)/windows/GifWin.cpp \
 	  $(top_srcdir)/windows/GifWin.h \
--- configure.ac.orig
+++ configure.ac
@@ -3,11 +3,14 @@ AC_INIT(giflib, [4.1.6], [abadger1999@so
 AC_CONFIG_SRCDIR([lib/dgif_lib.c])
 AM_INIT_AUTOMAKE([gnu check-news dist-bzip2 -Wall])
 AM_CONFIG_HEADER(config.h)
+AC_CONFIG_MACRO_DIR([m4])
 
 dnl Checks for programs.
-AC_PROG_LIBTOOL
-AC_PROG_CC
+AC_PROG_CC_STDC
+AC_USE_SYSTEM_EXTENSIONS
+AC_SYS_LARGEFILE
 AC_PROG_CPP
+LT_INIT([pic-only disable-static])
 AC_PROG_INSTALL
 AC_PROG_LN_S
 AC_PROG_MAKE_SET
--- lib/Makefile.am.orig
+++ lib/Makefile.am
@@ -21,6 +21,6 @@ libgif_la_SOURCES = dev2gif.c   \
                     quantize.c  \
 					gif_lib_private.h
 
-libgif_la_LDFLAGS = -version-info 5:6:1
+libgif_la_LDFLAGS = -no-undefined -version-info 5:6:1
 libgif_la_LIBADD = @DEVS@
 libgif_CFLAGS = $(X_CFLAGS) $(AM_CFLAGS)