autoconf: automatically detect if -ldl is required.
This logic was copied from the xserver.
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bcb61987fb
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@ -43,6 +43,11 @@ if test "x$GCC" = xyes; then
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fi
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AC_SUBST(MKDEP_OPTIONS)
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dnl Check to see if dlopen is in default libraries (like Solaris, which
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dnl has it in libc), or if libdl is needed to get it.
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AC_CHECK_FUNC([dlopen], [],
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AC_CHECK_LIB([dl], [dlopen], DLOPEN_LIBS="-ldl"))
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dnl Make sure the pkg-config macros are defined
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m4_ifdef([PKG_PROG_PKG_CONFIG],,[
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AC_MSG_ERROR([The pkg-config autoconf macros are not defined.
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@ -399,7 +404,7 @@ dri)
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fi
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# need DRM libs, -lpthread, etc.
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GL_LIB_DEPS="$GL_LIB_DEPS $LIBDRM_LIBS -lm -lpthread -ldl"
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GL_LIB_DEPS="$GL_LIB_DEPS $LIBDRM_LIBS -lm -lpthread $DLOPEN_LIBS"
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;;
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osmesa)
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# No libGL for osmesa
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@ -550,7 +555,7 @@ if test "$mesa_driver" = dri; then
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AC_MSG_ERROR([Expat required for DRI.]))
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# put all the necessary libs together
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DRI_LIB_DEPS="$SELINUX_LIBS $LIBDRM_LIBS $EXPAT_LIB -lm -lpthread -ldl"
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DRI_LIB_DEPS="$SELINUX_LIBS $LIBDRM_LIBS $EXPAT_LIB -lm -lpthread $DLOPEN_LIBS"
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fi
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AC_SUBST(DRI_DIRS)
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AC_SUBST(EXPAT_INCLUDES)
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