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Added options-helpers.patch.

            1  +Index: book.xml
            2  +===================================================================
            3  +diff --git a/head/en_US.ISO8859-1/books/porters-handbook/book.xml b/head/en_US.ISO8859-1/books/porters-handbook/book.xml
            4  +--- a/head/en_US.ISO8859-1/books/porters-handbook/book.xml	(revision 42469)
            5  ++++ b/head/en_US.ISO8859-1/books/porters-handbook/book.xml	(working copy)
            6  +@@ -4645,6 +4645,246 @@
            7  + .if ${VARIABLE:MVALUE}</programlisting>
            8  + 	</note>
            9  +       </sect2>
           10  ++      <sect2>
           11  ++	<title>Options helpers</title>
           12  ++
           13  ++	<para>A couple of helpers exists to simplify handling actions
           14  ++	  based on the value of an option.</para>
           15  ++
           16  ++	<para>If <makevar>OPTIONS_SUB</makevar> is set to
           17  ++	  <literal>yes</literal> then all <makevar>PLIST_SUB<makevar>
           18  ++	  will be populated automatically for each options defined in
           19  ++	  <makevar>OPTIONS_DEFINE</makevar>, for example:</para>
           20  ++
           21  ++	<programlisting>OPTIONS_DEFINE=	OPT1
           22  ++OPTIONS_SUB=	yes</programlisting>
           23  ++
           24  ++	<para> is equivalent of:</para>
           25  ++
           26  ++	<programlisting>OPTIONS_DEFINE=	OPT1
           27  ++
           28  ++.include &ls;bsd.port.options.mk&gt;
           29  ++
           30  ++.if ${PORT_OPTIONS:MOPT1}
           31  ++PLIST_SUB+=	OPT1=""
           32  ++.else
           33  ++PLIST_SUB+=	OPT1="@comment "
           34  ++.endif</programlisting>
           35  ++
           36  ++	<para>If <makevar>X_CONFIGURE_ENABLE</makevar> is set then it
           37  ++	  will add <literal>--enable-${X_CONFIGURE_ENABLE}</literal>
           38  ++	  or <literal>--disable-${X_CONFIGURE_ENABLE}</literal> to
           39  ++	  <makevar>CONFIGURE_ARGS</makevar depending the value of the
           40  ++	  option<makevar>X</makevar>, for example:</para>
           41  ++
           42  ++	<programlisting>OPTIONS_DEFINE=	OPT1
           43  ++OPT1_CONFIGURE_ENABLE=	test</programlisting>
           44  ++
           45  ++	<para>is equivalent of:</para>
           46  ++
           47  ++	<programlisting>OPTIONS_DEFINE=	OPT1
           48  ++
           49  ++.include &ls;bsd.port.options.mk&gt;
           50  ++
           51  ++.if ${PORT_OPTIONS:MOPT1}
           52  ++CONFIGURE_ARGS+=	--enable-test
           53  ++.else
           54  ++CONFIGURE_ARGS+=	--disable-test
           55  ++.endif</programlisting>
           56  ++
           57  ++	<para>If <makevar>X_CONFIGURE_WITH</makevar> is set then it
           58  ++	  will add <literal>--with-${X_CONFIGURE_WITH}</literal>
           59  ++	  or <literal>--without-${X_CONFIGURE_WITH}</literal> to
           60  ++	  <makevar>CONFIGURE_ARGS</makevar depending the value of the
           61  ++	  option<makevar>X</makevar>, for example:</para>
           62  ++
           63  ++	<programlisting>OPTIONS_DEFINE=	OPT1
           64  ++OPT1_CONFIGURE_WITH=	test</programlisting>
           65  ++
           66  ++	<para>is equivalent of:</para>
           67  ++
           68  ++	<programlisting>OPTIONS_DEFINE=	OPT1
           69  ++
           70  ++.include &ls;bsd.port.options.mk&gt;
           71  ++
           72  ++.if ${PORT_OPTIONS:MOPT1}
           73  ++CONFIGURE_ARGS+=	--with-test
           74  ++.else
           75  ++CONFIGURE_ARGS+=	--without-test
           76  ++.endif</programlisting>
           77  ++
           78  ++	<para>If <makevar>X_CONFIGURE_ON<makevar> is then its value
           79  ++	  will be appended to <makevar>CONFIGURE_ARGS</makevar> if
           80  ++	  the options <makevar>X</makevar> is activated, for example:
           81  ++	</para>
           82  ++
           83  ++	<programlisting>OPTIONS_DEFINE=	OPT1
           84  ++OPT1_CONFIGURE_ON=	--add-test</programlisting>
           85  ++
           86  ++	<para>is equivalent of</para>
           87  ++
           88  ++	<programlisting>OPTIONS_DEFINE=	OPT1
           89  ++
           90  ++.include &ls;bsd.port.options.mk&gt;
           91  ++
           92  ++.if ${PORT_OPTIONS:MOPT1}
           93  ++CONFIGURE_ARGS+=	--add-test
           94  ++.endif</programlisting>
           95  ++
           96  ++	<para>If <makevar>X_CONFIGURE_OFF<makevar> is then its value
           97  ++	  will be appended to <makevar>CONFIGURE_ARGS</makevar> if
           98  ++	  the options <makevar>X</makevar> is deactivated, for example:
           99  ++	</para>
          100  ++
          101  ++	<programlisting>OPTIONS_DEFINE=	OPT1
          102  ++OPT1_CONFIGURE_OFF=	--no-test</programlisting>
          103  ++
          104  ++	<para>is equivalent of</para>
          105  ++
          106  ++	<programlisting>OPTIONS_DEFINE=	OPT1
          107  ++.include &ls;bsd.port.options.mk&gt;
          108  ++.if ! ${PORT_OPTIONS:MOPT1}
          109  ++CONFIGURE_ARGS+=	--no-test
          110  ++.endif</programlisting>
          111  ++
          112  ++	<para>If <makevar>X_CMAKE_ON<makevar> is then its value
          113  ++	  will be appended to <makevar>CMAKE_ARGS</makevar> if
          114  ++	  the options <makevar>X</makevar> is activated, for example:
          115  ++	</para>
          116  ++
          117  ++	<programlisting>OPTIONS_DEFINE=	OPT1
          118  ++OPT1_CMAKE_ON=	-DTEST:BOOL=true</programlisting>
          119  ++
          120  ++	<para>is equivalent of</para>
          121  ++
          122  ++	<programlisting>OPTIONS_DEFINE=	OPT1
          123  ++
          124  ++.include &ls;bsd.port.options.mk&gt;
          125  ++
          126  ++.if ${PORT_OPTIONS:MOPT1}
          127  ++CMAKE_ARGS+=	-DTEST:BOOL=true
          128  ++.endif</programlisting>
          129  ++
          130  ++	<para>If <makevar>X_CMAKE_OFF<makevar> is then its value
          131  ++	  will be appended to <makevar>CMAKE_ARGS</makevar> if
          132  ++	  the options <makevar>X</makevar> is deactivated, for example:
          133  ++	</para>
          134  ++
          135  ++	<programlisting>OPTIONS_DEFINE=	OPT1
          136  ++OPT1_CMAKE_OFF=	-DTEST:BOOL=false</programlisting>
          137  ++
          138  ++	<para>is equivalent of</para>
          139  ++
          140  ++	<programlisting>OPTIONS_DEFINE=	OPT1
          141  ++
          142  ++.include &ls;bsd.port.options.mk&gt;
          143  ++
          144  ++.if ! ${PORT_OPTIONS:MOPT1}
          145  ++CMAKE_ARGS+=	-DTEST:BOOL=false
          146  ++.endif<programlisting>
          147  ++
          148  ++	<para>For any of the following variables:</para>
          149  ++
          150  ++	<itemizedlist>
          151  ++	    <listitem>
          152  ++	      <para><makevar>CFLAGS</makevar>.</para>
          153  ++	    </listitem>
          154  ++
          155  ++	    <listitem>
          156  ++	      <para><makevar>CXXFLAGS</makevar>.</para>
          157  ++	    </listitem>
          158  ++
          159  ++	    <listitem>
          160  ++	      <para><makevar>LDLAGS</makevar>.</para>
          161  ++	    </listitem>
          162  ++
          163  ++	    <listitem>
          164  ++	      <para><makevar>CONFIGURE_ENV</makevar>.</para>
          165  ++	    </listitem>
          166  ++
          167  ++	    <listitem>
          168  ++	      <para><makevar>MAKE_ENV</makevar>.</para>
          169  ++	    </listitem>
          170  ++
          171  ++	    <listitem>
          172  ++	      <para><makevar>USES</makevar>.</para>
          173  ++	    </listitem>
          174  ++
          175  ++	    <listitem>
          176  ++	      <para><makevar>DISTFILES</makevar>.</para>
          177  ++	    </listitem>
          178  ++	</itemizedlist>
          179  ++
          180  ++	<para>If <makevar>X_ABOVEVARIABLE</makevar> is defined then
          181  ++	  its value will be appended to
          182  ++	  <makevar>ABOVEVARIABLE</makevar> if <makevar>X</makevar>
          183  ++	  is activated, for example:</para>
          184  ++
          185  ++	<programlisting>OPTIONS_DEFINE=	OPT1
          186  ++OPT1_USES=	gmake
          187  ++OPT1_CFLAGS=	-DTEST</programlisting>
          188  ++
          189  ++	<para>is equivalent of:</para>
          190  ++
          191  ++	<programlisting>OPTIONS_DEFINE=	OPT1
          192  ++
          193  ++.include &ls;bsd.port.options.mk&gt;
          194  ++
          195  ++.if ${PORT_OPTIONS:MOPT1}
          196  ++USES+=		gmake
          197  ++CFLAGS+=	-DTEST
          198  ++.endif</programlisting>
          199  ++
          200  ++	<para>For any of the following dependency type:</para>
          201  ++
          202  ++	<itemizedlist>
          203  ++	    <listitem>
          204  ++	      <para><makevar>PKG_DEPENDS</makevar>.</para>
          205  ++	    </listitem>
          206  ++
          207  ++	    <listitem>
          208  ++	      <para><makevar>EXTRACT_DEPENDS</makevar>.</para>
          209  ++	    </listitem>
          210  ++
          211  ++	    <listitem>
          212  ++	      <para><makevar>PATCH_DEPENDS</makevar>.</para>
          213  ++	    </listitem>
          214  ++
          215  ++	    <listitem>
          216  ++	      <para><makevar>FETCH_DEPENDS</makevar>.</para>
          217  ++	    </listitem>
          218  ++
          219  ++	    <listitem>
          220  ++	      <para><makevar>BUILD_DEPENDS</makevar>.</para>
          221  ++	    </listitem>
          222  ++
          223  ++	    <listitem>
          224  ++	      <para><makevar>LIB_DEPENDS</makevar>.</para>
          225  ++	    </listitem>
          226  ++
          227  ++	    <listitem>
          228  ++	      <para><makevar>RUN_DEPENDS</makevar>.</para>
          229  ++	    </listitem>
          230  ++	</itemizedlist>
          231  ++
          232  ++	<para>If <makevar>X_ABOVEVARIABLE</makevar> is defined then
          233  ++	  its value will be appended to
          234  ++	  <makevar>ABOVEVARIABLE</makevar> if <makevar>X</makevar>
          235  ++	  is activated, for example:</para>
          236  ++
          237  ++	<programlisting>OPTIONS_DEFINE=	OPT1
          238  ++OPT1_LIB_DEPENDS=	liba.so:${PORTSDIR}/devel/a</programlisting>
          239  ++
          240  ++	<para>is equivalent of:</para>
          241  ++
          242  ++	<programlisting>OPTIONS_DEFINE=	OPT1
          243  ++
          244  ++.include &ls;bsd.port.options.mk&gt;
          245  ++
          246  ++.if ${PORT_OPTIONS:MOPT1}
          247  ++LIB_DEPENDS+=	liba.so:${PORTSDIR}/devel/a
          248  ++.endif</programlisting>
          249  ++      </sect2>
          250  +     </sect1>
          251  + 
          252  +     <sect1 id="makefile-wrkdir">