| 1 | // $Id: build_tool.doxygen 2384 2010-12-22 14:03:36Z peter $ |
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| 2 | // |
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| 3 | // Copyright (C) 2008 Jari Häkkinen, Peter Johansson |
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| 4 | // Copyright (C) 2009, 2010 Peter Johansson |
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| 5 | // |
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| 6 | // This file is part of the yat library, http://dev.thep.lu.se/yat |
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| 7 | // |
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| 8 | // The yat library is free software; you can redistribute it and/or |
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| 9 | // modify it under the terms of the GNU General Public License as |
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| 10 | // published by the Free Software Foundation; either version 3 of the |
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| 11 | // License, or (at your option) any later version. |
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| 12 | // |
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| 13 | // The yat library is distributed in the hope that it will be useful, |
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| 14 | // but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 15 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 16 | // General Public License for more details. |
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| 17 | // |
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| 18 | // You should have received a copy of the GNU General Public License |
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| 19 | // along with yat. If not, see <http://www.gnu.org/licenses/>. |
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| 20 | |
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| 21 | |
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| 22 | /** |
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| 23 | \page build_tool Build Tools |
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| 24 | |
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| 25 | \section yat-config |
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| 26 | |
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| 27 | The \c yat-config script provides information on the local version of |
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| 28 | the library. For instance the following command shows that yat was |
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| 29 | installed at prefix \c `/usr/local' |
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| 30 | |
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| 31 | \verbatim |
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| 32 | #> yat-config --prefix |
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| 33 | /usr/local |
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| 34 | \endverbatim |
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| 35 | |
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| 36 | This information can then be used in a Makefile, for example, as follows: |
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| 37 | |
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| 38 | \verbatim |
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| 39 | BIN=foo |
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| 40 | SRC=$(BIN).cc |
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| 41 | OBJECTS=$(SRC:.cc=.o) |
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| 42 | |
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| 43 | CPPFLAGS+=`yat-config --cppflags` |
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| 44 | CXXFLAGS+=`yat-config --cxxflags` |
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| 45 | LDFLAGS+=`yat-config --ldflags` |
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| 46 | LIBS+=`yat-config --libs` |
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| 47 | |
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| 48 | all: $(BIN) |
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| 49 | |
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| 50 | $(BIN): $(OBJECTS) |
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| 51 | $(CXX) $(LDFLAGS) $(OBJECTS) -o $(BIN) $(LIBS) |
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| 52 | |
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| 53 | .cc.o: |
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| 54 | $(CXX) $(CPPFLAGS) $(CXXFLAGS) -c $< -o $@ |
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| 55 | |
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| 56 | clean:; rm -f $(OBJECTS) $(BIN) |
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| 57 | \endverbatim |
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| 58 | |
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| 59 | From yat 0.6 an alternative \c CBLAS library can be specified using \c |
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| 60 | YAT_CBLAS_LIB environment variable. By default the \c CBLAS library |
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| 61 | detected during configuration of yat is used. |
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| 62 | |
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| 63 | For further information on yat-config use \c `yat-config \c --help' |
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| 64 | |
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| 65 | \since New in yat 0.5 |
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| 66 | |
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| 67 | \section macro Autoconf Macro |
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| 68 | |
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| 69 | For applications using autoconf there is a macro available in \c |
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| 70 | yat.m4. The macro can be called from your \c configure.ac: |
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| 71 | |
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| 72 | \verbatim |
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| 73 | YAT_CHECK_YAT([minimum-version], [action-if-found], [action-if-not-found]) |
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| 74 | \endverbatim |
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| 75 | |
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| 76 | The argument minimum-version should be the number (\c MAJOR.MINOR or |
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| 77 | \c MAJOR.MINOR.PATCH) of the version you require. If yat header files |
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| 78 | and library are not found or the version is not new enough, macro will |
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| 79 | complain and execute shell command \c action-if-not-found. A suitable |
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| 80 | \c action-if-not-found could be |
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| 81 | |
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| 82 | \verbatim |
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| 83 | AC_MSG_ERROR([could not find required version of yat]) |
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| 84 | \endverbatim |
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| 85 | |
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| 86 | If the test is successful, \c HAVE_YAT is defined and \c |
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| 87 | action-if-found is executed. The test calls \c yat-config and sets |
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| 88 | variables \c YAT_CPPFLAGS, \c YAT_CXXFLAGS, \c YAT_LDFLAGS, \c |
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| 89 | YAT_LIBS, and \c YAT_LA_FILE. These flags can then be used in the \c |
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| 90 | Makefile.am. For instance: |
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| 91 | |
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| 92 | \verbatim |
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| 93 | AM_CPPFLAGS = $(YAT_CPPFLAGS) |
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| 94 | AM_CXXFLAGS = $(YAT_CXXFLAGS) |
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| 95 | AM_LDFLAGS = $(YAT_LDFLAGS) |
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| 96 | LDADD = $(YAT_LIBS) |
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| 97 | \endverbatim |
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| 98 | |
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| 99 | \note this macro assumes that \c yat-config has been installed; \c |
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| 100 | yat-config was introduced in yat \b 0.5 and consequently this macro |
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| 101 | \b does \b not work with yat \b 0.4.x (or older). |
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| 102 | |
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| 103 | */ |
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| 104 | |
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