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The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
87 lines
2.9 KiB
Groff
87 lines
2.9 KiB
Groff
.TH sdl2-config 1 "2012-02-20" "SDL 2.0"
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.SH NAME
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sdl2-config \- script to get information about the installed version of SDL
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.SH SYNOPSIS
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.B sdl2-config
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[ --prefix=
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.IR DIR ]
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[ --exec-prefix=
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.IR DIR ]
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[ --version ] [ --libs | --library-libs | --plugin-libs ] [ --cflags ]
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.SH DESCRIPTION
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.B sdl2-config
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is a tool that is used to configure and determine the compiler and linker
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flags that should be used to compile and link programs, libraries, and
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plugins that use SDL. It is also used internally by the m4 macros that are
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included with SDL.
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.SH OPTIONS
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.TP
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.B --cflags
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Print the compiler flags that are necessary to compile a program or library
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that uses SDL.
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.TP
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.BI --exec-prefix= DIR
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If specified, use
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.I DIR
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instead of the installation exec prefix that SDL was build with when
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computing the output for the --cflags, --libs, --library-libs, and
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--plugin-libs options. This option must be specified before any of the
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--cflags, --libs, --library-libs, and --plugin-libs options.
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.TP
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.B --libs
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Print the linker flags that are necessary to link a program that uses SDL.
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.TP
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.B --static-libs
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Print the linker flags that are necessary to statically link a program that uses SDL.
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.TP
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.B --library-libs
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Print the linker flags that are necessary to link a library that uses SDL.
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(This excludes any static objects required for linking, since these must be
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linked only by executable programs.)
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.TP
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.B --plugin-libs
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Print the linker flags that are necessary to link an SDL-using object that
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is to be accessed via
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.IR dlopen (3).
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This may include static objects with PIC symbol information. This option
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should
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.B not
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be used for ordinary shared libraries or standalone applications.
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.TP
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.BI --prefix= DIR
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If specified, use PREFIX instead of the installation prefix that SDL was
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built with when computing the output for the --cflags, --libs,
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--library-libs, and --plugin-libs options. This option is also used for
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the exec prefix if --exec-prefix was not specified. This option must be
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specified before any of the --cflags, --libs, --library-libs, and
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--plugin-libs options.
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.TP
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.B --version
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Prints the currently installed version of SDL on standard output.
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.SH EXAMPLES
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.TP
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gcc -o main.o $(sdl2-config --cflags) main.c
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is how you might use
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.B sdl2-config
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to compile a C source file for an executable program.
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.TP
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gcc -o my_app $(sdl2-config --libs) main.o util.o
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is how you might use
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.B sdl2-config
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to link compiled objects into an executable program.
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.TP
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gcc -o libSDL_nifty-2.0.so.0.0.1 $(sdl --library-libs) read.o write.o munge.o
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is how you might use
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.B sdl2-config
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to link compiled objects into a shared library.
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.TP
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gcc -o libnifty_xmms.so $(sdl --plugin-libs) stream.o blit.o deinterlace.o
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is how you might use
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.B sdl2-config
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to link compiled objects into a plugin for use by another program.
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.SH AUTHOR
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The Simple DirectMedia Layer (SDL) library was written by Sam Lantinga.
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.PP
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This manual page was written by Branden Robinson, originally for Progeny
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Linux Systems, Inc., and the Debian Project.
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