45 lines
1.4 KiB
Plaintext
45 lines
1.4 KiB
Plaintext
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dnl
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dnl Copyright 2005 Free Software Foundation, Inc.
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dnl
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dnl This file is part of GNU Radio
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dnl
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dnl GNU Radio is free software; you can redistribute it and/or modify
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dnl it under the terms of the GNU General Public License as published by
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dnl the Free Software Foundation; either version 3, or (at your option)
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dnl any later version.
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dnl
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dnl GNU Radio is distributed in the hope that it will be useful,
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dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
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dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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dnl GNU General Public License for more details.
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dnl
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dnl You should have received a copy of the GNU General Public License
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dnl along with GNU Radio; see the file COPYING. If not, write to
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dnl the Free Software Foundation, Inc., 51 Franklin Street,
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dnl Boston, MA 02110-1301, USA.
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dnl
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# GR_NO_UNDEFINED()
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#
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# Detemine whether we need to use the -no-undefined linker flag
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# when building shared libraries.
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# Sets NO_UNDEFINED to "" or "-no-undefined"
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#
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# As far as I can tell, we need -no-undefined only when building
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# windows DLLs. This occurs when using MinGW and Cygwin.
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#
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# For now, we stub this out.
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AC_DEFUN([GR_NO_UNDEFINED],[
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AC_REQUIRE([AC_CANONICAL_HOST])
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no_undefined=""
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case "${host_os}" in
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*mingw* | *cygwin*)
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# on MinGW/Cygwin extra LDFLAGS are required
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no_undefined="-no-undefined"
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;;
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esac
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AC_SUBST(NO_UNDEFINED,[$no_undefined])
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])
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