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autoconf: automatically detect if -ldl is required. 

This logic was copied from the xserver.
This commit is contained in:
Eric Anholt 2008-03-20 17:28:58 -07:00
parent bcb61987fb
commit 050c533cbf
1 changed files with 7 additions and 2 deletions
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9
configure.ac
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@ -43,6 +43,11 @@ if test "x$GCC" = xyes; then
fi fi
AC_SUBST(MKDEP_OPTIONS) AC_SUBST(MKDEP_OPTIONS)
dnl Check to see if dlopen is in default libraries (like Solaris, which
dnl has it in libc), or if libdl is needed to get it.
AC_CHECK_FUNC([dlopen], [],
AC_CHECK_LIB([dl], [dlopen], DLOPEN_LIBS="-ldl"))
dnl Make sure the pkg-config macros are defined dnl Make sure the pkg-config macros are defined
m4_ifdef([PKG_PROG_PKG_CONFIG],,[ m4_ifdef([PKG_PROG_PKG_CONFIG],,[
AC_MSG_ERROR([The pkg-config autoconf macros are not defined. AC_MSG_ERROR([The pkg-config autoconf macros are not defined.
@ -399,7 +404,7 @@ dri)
fi fi
# need DRM libs, -lpthread, etc. # need DRM libs, -lpthread, etc.
GL_LIB_DEPS="$GL_LIB_DEPS $LIBDRM_LIBS -lm -lpthread -ldl" GL_LIB_DEPS="$GL_LIB_DEPS $LIBDRM_LIBS -lm -lpthread $DLOPEN_LIBS"
;; ;;
osmesa) osmesa)
# No libGL for osmesa # No libGL for osmesa
@ -550,7 +555,7 @@ if test "$mesa_driver" = dri; then
AC_MSG_ERROR([Expat required for DRI.])) AC_MSG_ERROR([Expat required for DRI.]))
# put all the necessary libs together # put all the necessary libs together
DRI_LIB_DEPS="$SELINUX_LIBS $LIBDRM_LIBS $EXPAT_LIB -lm -lpthread -ldl" DRI_LIB_DEPS="$SELINUX_LIBS $LIBDRM_LIBS $EXPAT_LIB -lm -lpthread $DLOPEN_LIBS"
fi fi
AC_SUBST(DRI_DIRS) AC_SUBST(DRI_DIRS)
AC_SUBST(EXPAT_INCLUDES) AC_SUBST(EXPAT_INCLUDES)