cmake: Don't try to use readline if you don't also have curses.
Fixes #17.
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@ -209,13 +209,15 @@ if(PHYSFS_BUILD_TEST)
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find_path(HISTORY_H readline/history.h)
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if(READLINE_H AND HISTORY_H)
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find_library(CURSES_LIBRARY NAMES curses ncurses)
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set(CMAKE_REQUIRED_LIBRARIES ${CURSES_LIBRARY})
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find_library(READLINE_LIBRARY readline)
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if(READLINE_LIBRARY)
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set(HAVE_SYSTEM_READLINE TRUE)
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set(TEST_PHYSFS_LIBS ${TEST_PHYSFS_LIBS} ${READLINE_LIBRARY} ${CURSES_LIBRARY})
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include_directories(SYSTEM ${READLINE_H} ${HISTORY_H})
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add_definitions(-DPHYSFS_HAVE_READLINE=1)
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if(CURSES_LIBRARY)
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set(CMAKE_REQUIRED_LIBRARIES ${CURSES_LIBRARY})
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find_library(READLINE_LIBRARY readline)
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if(READLINE_LIBRARY)
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set(HAVE_SYSTEM_READLINE TRUE)
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set(TEST_PHYSFS_LIBS ${TEST_PHYSFS_LIBS} ${READLINE_LIBRARY} ${CURSES_LIBRARY})
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include_directories(SYSTEM ${READLINE_H} ${HISTORY_H})
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add_definitions(-DPHYSFS_HAVE_READLINE=1)
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endif()
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endif()
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endif()
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add_executable(test_physfs test/test_physfs.c)
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