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@@ -0,0 +1,98 @@
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+dnl * Copyright 2014 Luke Dashjr
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+dnl *
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+dnl * This program is free software; you can redistribute it and/or modify it
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+dnl * under the terms of the GNU General Public License as published by the Free
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+dnl * Software Foundation; either version 3 of the License, or (at your option)
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+dnl * any later version. See COPYING for more details.
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+
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+m4_divert_text([DEFAULTS], [
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+origin_LDFLAGS=
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+origin_LDFLAGS_checked=false
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+maybe_ldconfig=
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+maybe_ldconfig_checked=false
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+BUNDLED_LIB_RULES=
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+])
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+
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+AC_SUBST(BUNDLED_LIB_RULES)
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+AM_SUBST_NOTMAKE(BUNDLED_LIB_RULES)
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+
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+AC_DEFUN([BFG_CHECK_LD_ORIGIN],[
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+if ! $origin_LDFLAGS_checked; then
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+ save_LDFLAGS="$LDFLAGS"
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+ LDFLAGS="$LDFLAGS -Wl,-zorigin"
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+ AC_MSG_CHECKING([whether the linker recognizes the -zorigin option])
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+ AC_TRY_LINK([],[],[
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+ AC_MSG_RESULT([yes])
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+ origin_LDFLAGS=',-zorigin'
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+ ],[
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+ AC_MSG_RESULT([no])
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+ ])
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+ LDFLAGS="$save_LDFLAGS"
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+ origin_LDFLAGS_checked=true
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+fi
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+])
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+
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+AC_DEFUN([BFG_CHECK_LDCONFIG],[
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+if ! $maybe_ldconfig_checked; then
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+ _ROOTPATH=$PATH$PATH_SEPARATOR`echo $PATH | sed s/bin/sbin/g`
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+ possible_ldconfigs="${target}-ldconfig"
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+ if test "x$cross_compiling" != "xyes"; then
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+ possible_ldconfigs="${possible_ldconfigs} ldconfig"
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+ fi
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+ AC_CHECK_PROGS([LDCONFIG],[${possible_ldconfigs}],[],[$_ROOTPATH])
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+ if test "x$LDCONFIG" != "x"; then
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+ maybe_ldconfig=" && $LDCONFIG"
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+ fi
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+ maybe_ldconfig_checked=true
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+fi
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+])
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+
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+AC_DEFUN([BFG_BUNDLED_LIB_VARS],[
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+ BFG_CHECK_LD_ORIGIN
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+ _AC_SRCDIRS(["$ac_dir"])
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+ $1_CFLAGS='-I'"${ac_abs_top_srcdir}"'/$2'
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+ $1_LIBS='-L'"${ac_abs_top_srcdir}"'/$2/.libs -Wl,-rpath,\$$ORIGIN/$2/.libs'"$origin_LDFLAGS"' m4_foreach_w([mylib],[$3],[ -l[]mylib])'
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+ $1_SUBDIRS=$2
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+ $1_EXTRADEPS=$1_directory
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+ BUNDLED_LIB_RULES="$BUNDLED_LIB_RULES
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+$1_directory:
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+ \$(MAKE) -C $2
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+"
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+ if $have_cygwin; then
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+ $1_EXTRADEPS="$$1_EXTRADEPS m4_foreach_w([mylib],[$3],[ cyg[]mylib[]-0.dll])"
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+ BUNDLED_LIB_RULES="$BUNDLED_LIB_RULES[]m4_foreach_w([mylib],[$3],[
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+cyg[]mylib[]-0.dll: $2/.libs/cyg[]mylib[]-0.dll
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+ cp -p \$< \$[]@
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+])"
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+ fi
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+])
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+
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+dnl BFG_BUNDLED_LIB([PKG-NAME],PKGCONF-NAME],[DEFAULT:YES/NO/AUTO],[PATH],[LIBS],[DEPENDENT-PKGS],[CONFIGURE-ARGS],[CONFIGURE-ARGS])
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+AC_DEFUN([BFG_BUNDLED_LIB],[
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+ AC_ARG_WITH([system-$1],[ifelse([$3],[no],AC_HELP_STRING([--with-system-$1], [Use system $1 rather than bundled one (default disabled)]),AC_HELP_STRING([--without-system-$1], [Use bundled $1 rather than system one]))],[true],[with_system_$1=$3])
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+ if test "x$with_system_$1" != "xno"; then
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+ PKG_CHECK_MODULES([$1],[$2],[
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+ with_system_$1=yes
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+ ],[
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+ if test "x$with_system_$1" = "xyes"; then
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+ AC_MSG_ERROR([Could not find system $1])
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+ else
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+ AC_MSG_NOTICE([Didn't find system $1, using bundled copy])
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+ with_system_$1=no
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+ fi
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+ ])
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+ fi
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+ if test "x$with_system_$1" = "xno"; then
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+ BFG_BUNDLED_LIB_VARS([$1],[$4],[$5])
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+ BFG_CUSTOM_SUBDIR([$4],[$7],[$8 m4_foreach_w([mydep],[$6],[ mydep[]_LIBS='$mydep[]_LIBS' mydep[]_CFLAGS='$mydep[]_CFLAGS'])])
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+ BFG_CHECK_LDCONFIG
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+ else
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+ $1_SUBDIRS=
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+ $1_EXTRADEPS=
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+ fi
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+ AC_SUBST($1_CFLAGS)
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+ AC_SUBST($1_LIBS)
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+ AC_SUBST($1_SUBDIRS)
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+ AC_SUBST($1_EXTRADEPS)
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+ AM_CONDITIONAL(NEED_[]m4_toupper([$1]), [test x$with_system_$1 != xyes])
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+])
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Luke Dashjr