Bug #1243 ยป 0041-Autotools-Link-sdl2-subproject-checks-against-libm.patch
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ac_save_LIBS="$LIBS"
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CPPFLAGS="$CPPFLAGS $SDL2_CFLAGS"
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CFLAGS="$CFLAGS $SDL2_CFLAGS"
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LIBS="$LIBS $SDL2_LIBS"
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LIBS="$LIBS $SDL2_LIBS -lm"
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AC_CHECK_LIB([$1], [$2],
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[sdl2_lib_found="yes"], [sdl2_lib_found="no"
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sdl2_h_found="no"])
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