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barrier/res/DefineIfExist.nsh

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; synergy -- mouse and keyboard sharing utility
; Copyright (C) 2012 Nick Bolton
;
; This package is free software; you can redistribute it and/or
; modify it under the terms of the GNU General Public License
; found in the file LICENSE that should have accompanied this file.
;
; This package is distributed in the hope that it will be useful,
; but WITHOUT ANY WARRANTY; without even the implied warranty of
; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
; GNU General Public License for more details.
;
; You should have received a copy of the GNU General Public License
; along with this program. If not, see <http://www.gnu.org/licenses/>.
2012-06-10 20:50:54 +04:00
!macro !defineifexist _VAR_NAME _FILE_NAME
!tempfile _TEMPFILE
!ifdef NSIS_WIN32_MAKENSIS
; Windows - cmd.exe
!system 'if exist "${_FILE_NAME}" echo !define ${_VAR_NAME} > "${_TEMPFILE}"'
!else
; Posix - sh
!system 'if [ -e "${_FILE_NAME}" ]; then echo "!define ${_VAR_NAME}" > "${_TEMPFILE}"; fi'
!endif
!include '${_TEMPFILE}'
!delfile '${_TEMPFILE}'
!undef _TEMPFILE
!macroend
!define !defineifexist "!insertmacro !defineifexist"