Add an include to remove any C Preprocessor symbol libcdio's config.h creates. Programs using

libcdio can do this:

// for cdio:

// for your program

include/cdio/Makefile.am

@@ -35,6 +35,7 @@ libcdioinclude_HEADERS = \
 	bytesex_asm.h \
 	cdio.h \
 	cdio_config.h \
+	cdio_unconfig.h \
 	cd_types.h \
 	device.h \
 	disc.h \

include/cdio/cdio_unconfig.h

@@ -0,0 +1,116 @@
+/* You can include this to remove any C preprocessor symbols created in cdio_config.h.
+   For example, if your project has your own config.h which sets symbols do this:
+
+   // for cdio:
+   #include <cdio.h>
+   #include <cdio_unconfig.h>
+   // for your program
+   #include <config.h>
+*/
+#undef EMPTY_ARRAY_SIZE 
+#undef HAVE_BZERO
+#undef HAVE_CDDB
+#undef HAVE_CHDIR
+#undef HAVE_CURSES_H
+#undef HAVE_DAYLIGHT
+#undef HAVE_DLFCN_H
+#undef HAVE_DRAND48
+#undef HAVE_ERRNO_H
+#undef HAVE_FCNTL_H
+#undef HAVE_FTRUNCATE
+#undef HAVE_GETEUID
+#undef HAVE_GETGID
+#undef HAVE_GETOPT_H
+#undef HAVE_GETPWUID
+#undef HAVE_GETTIMEOFDAY
+#undef HAVE_GETUID
+#undef HAVE_GLOB_H
+#undef HAVE_GMTIME_R
+#undef HAVE_ICONV
+#undef HAVE_INTTYPES_H
+#undef HAVE_ISOC99_PRAGMA
+#undef HAVE_JOLIET
+#undef HAVE_KEYPAD
+#undef HAVE_LANGINFO_CODESET
+#undef HAVE_LIMITS_H
+#undef HAVE_LINUX_CDROM
+#undef HAVE_LINUX_CDROM_H
+#undef HAVE_LINUX_MAJOR_H
+#undef HAVE_LINUX_VERSION_H
+#undef HAVE_LOCALTIME_R
+#undef HAVE_LSTAT
+#undef HAVE_MEMCPY
+#undef HAVE_MEMORY_H
+#undef HAVE_MEMSET
+#undef HAVE_NCURSES_H
+#undef HAVE_PWD_H
+#undef HAVE_RAND
+#undef HAVE_READLINK
+#undef HAVE_REALPATH
+#undef HAVE_ROCK
+#undef HAVE_SETEGID
+#undef HAVE_SETENV
+#undef HAVE_SETEUID
+#undef HAVE_SLEEP
+#undef HAVE_SNPRINTF
+#undef HAVE_SOLARIS_CDROM
+#undef HAVE_STDARG_H
+#undef HAVE_STDBOOL_H
+#undef HAVE_STDINT_H
+#undef HAVE_STDIO_H
+#undef HAVE_STDLIB_H
+#undef HAVE_STRINGS_H
+#undef HAVE_STRING_H
+#undef HAVE_STRUCT_TIMESPEC
+#undef HAVE_SYS_CDIO_H
+#undef HAVE_SYS_PARAM_H
+#undef HAVE_SYS_STAT_H
+#undef HAVE_SYS_TIMEB_H
+#undef HAVE_SYS_TIME_H
+#undef HAVE_SYS_TYPES_H
+#undef HAVE_SYS_UTSNAME_H
+#undef HAVE_S_ISLNK
+#undef HAVE_S_ISSOCK
+#undef HAVE_TIMEGM
+#undef HAVE_TIMEZONE_VAR
+#undef HAVE_TM_GMTOFF
+#undef HAVE_TZNAME
+#undef HAVE_TZSET
+#undef HAVE_UNISTD_H
+#undef HAVE_UNSETENV
+#undef HAVE_USLEEP
+#undef HAVE_VCDINFO
+#undef HAVE_VSNPRINTF
+#undef HAVE_WIN32_CDROM
+#undef HAVE_WINDOWS_H
+#undef ICONV_CONST 
+#undef LIBCDIO_CONFIG_H
+#undef LIBCDIO_SOURCE_PATH
+#undef LT_OBJDIR
+#undef MINGW32
+#undef NEED_TIMEZONEVAR
+#undef NO_MINUS_C_MINUS_O
+#undef PACKAGE
+#undef PACKAGE_BUGREPORT
+#undef PACKAGE_NAME 
+#undef PACKAGE_STRING
+#undef PACKAGE_TARNAME
+#undef PACKAGE_URL
+#undef PACKAGE_VERSION
+#undef STDC_HEADERS
+#undef _ALL_SOURCE
+#undef _GNU_SOURCE
+#undef _POSIX_PTHREAD_SEMANTICS
+#undef _TANDEM_SOURCE
+#undef __EXTENSIONS__
+#undef VERSION 
+#undef AC_APPLE_UNIVERSAL_BUILD
+#undef __BIG_ENDIAN__
+#undef WORDS_BIGENDIAN
+#undef _FILE_OFFSET_BITS
+#undef _LARGEFILE_SOURCE
+#undef _LARGE_FILES
+#undef _MINIX
+#undef _POSIX_1_SOURCE
+#undef _POSIX_SOURCE
+#undef const