[1.5] Create a new cmake option to choose between convienient copy of getopt and system installed one

Udapte issue 301

CMakeLists.txt

@@ -233,6 +233,8 @@ IF(BUILD_JPIP)
 ENDIF(BUILD_JPIP)
 OPTION(BUILD_VIEWER "Build the OPJViewer executable (C++)" OFF)
 OPTION(BUILD_JAVA "Build the openjpeg jar (Java)" OFF)
+OPTION(USE_SYSTEM_GETOPT "Prefer system installed getopt()" OFF)
+MARK_AS_ADVANCED(USE_SYSTEM_GETOPT)
 MARK_AS_ADVANCED(BUILD_VIEWER)
 MARK_AS_ADVANCED(BUILD_JAVA)
 

applications/codec/CMakeLists.txt

@@ -5,8 +5,12 @@ SET(common_SRCS
   convert.c
   index.c
   ${OPENJPEG_SOURCE_DIR}/applications/common/color.c
+  )
+if(NOT USE_SYSTEM_GETOPT)
+  list(APPEND common_SRCS
     ${OPENJPEG_SOURCE_DIR}/applications/common/opj_getopt.c
   )
+endif()
 
 # Headers file are located here:
 INCLUDE_DIRECTORIES(

applications/common/opj_getopt.c

@@ -38,6 +38,10 @@ static char sccsid[] = "@(#)opj_getopt.c	8.3 (Berkeley) 4/27/95";
 #include <string.h>
 #include "opj_getopt.h"
 
+#ifdef USE_SYSTEM_GETOPT
+#error
+#endif
+
 int opj_opterr = 1,			/* if error message should be printed */
  opj_optind = 1,			/* index into parent argv vector */
  opj_optopt,			/* character checked for validity */

applications/common/opj_getopt.h

@@ -1,5 +1,7 @@
 /* last review : october 29th, 2002 */
 
+#include "opj_config.h"
+
 #ifndef _GETOPT_H_
 #define _GETOPT_H_
 
@@ -9,12 +11,25 @@ typedef struct opj_option
 	int has_arg;
 	int *flag;
 	int val;
-}opj_option_t;
+} opj_option_t;
 
 #define	NO_ARG	0
 #define REQ_ARG	1
 #define OPT_ARG	2
 
+#ifdef USE_SYSTEM_GETOPT
+#include <getopt.h>
+
+#define opj_opterr opterr
+#define opj_optind optind
+#define opj_optopt optopt
+#define opj_optreset optreset
+#define opj_optarg optarg
+
+#define opj_getopt getopt
+#define opj_getopt_long getopt_long
+
+#else
 extern int opj_opterr;
 extern int opj_optind;
 extern int opj_optopt;
@@ -26,4 +41,5 @@ extern int opj_getopt_long(int argc, char * const argv[], const char *optstring,
 			const opj_option_t *longopts, int totlen);
 extern void reset_options_reading(void);
 
+#endif /* USE_SYSTEM_GETOPT */
 #endif				/* _GETOPT_H_ */

opj_config.h.cmake.in

@@ -19,6 +19,7 @@
 #cmakedefine HAVE_LIBLCMS2
 #cmakedefine HAVE_LCMS1_H
 #cmakedefine HAVE_LCMS2_H
+#cmakedefine USE_SYSTEM_GETOPT
 
 /* Byte order.  */
 /* All compilers that support Mac OS X define either __BIG_ENDIAN__ or

tests/CMakeLists.txt

@@ -11,14 +11,15 @@ INCLUDE_DIRECTORIES(
 # First thing define the common source:
 SET(comparePGXimages_SRCS comparePGXimages.c
   ${OPENJPEG_SOURCE_DIR}/applications/codec/convert.c
-  ${OPENJPEG_SOURCE_DIR}/applications/common/opj_getopt.c
   )
+SET(compare_dump_files_SRCS compare_dump_files.c)
+SET(compareRAWimages_SRCS compareRAWimages.c)
 
-SET(compare_dump_files_SRCS compare_dump_files.c
-  ${OPENJPEG_SOURCE_DIR}/applications/common/opj_getopt.c)
-
-SET(compareRAWimages_SRCS compareRAWimages.c
-  ${OPENJPEG_SOURCE_DIR}/applications/common/opj_getopt.c)
+if(NOT USE_SYSTEM_GETOPT)
+  list(APPEND comparePGXimages_SRCS ${OPENJPEG_SOURCE_DIR}/applications/common/opj_getopt.c)
+  list(APPEND compare_dump_files_SRCS ${OPENJPEG_SOURCE_DIR}/applications/common/opj_getopt.c)
+  list(APPEND compareRAWimages_SRCS ${OPENJPEG_SOURCE_DIR}/applications/common/opj_getopt.c)
+endif()
 
 ADD_EXECUTABLE(comparePGXimages ${comparePGXimages_SRCS})
 TARGET_LINK_LIBRARIES(comparePGXimages