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><A
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NAME="REF.NO-DEFINE"><SPAN
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NAME="REF.NO-DEFINE"><SPAN
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CLASS="PROPERTY"
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CLASS="PROPERTY"
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>no_define</SPAN
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>no_define</SPAN
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></H1
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></H1
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><DIV
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><DIV
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CLASS="REFNAMEDIV"
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CLASS="REFNAMEDIV"
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><A
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><A
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NAME="AEN4836"
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NAME="AEN4836"
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></A
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></A
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><H2
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><H2
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>Name</H2
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>Name</H2
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>Property <SPAN
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>Property <SPAN
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CLASS="PROPERTY"
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CLASS="PROPERTY"
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>no_define</SPAN
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>no_define</SPAN
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> -- Suppress the normal generation of a preprocessor
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> -- Suppress the normal generation of a preprocessor
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<TT
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<TT
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CLASS="LITERAL"
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CLASS="LITERAL"
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>#define</TT
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>#define</TT
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> symbol in a configuration header file.</DIV
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> symbol in a configuration header file.</DIV
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><DIV
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><DIV
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CLASS="REFSYNOPSISDIV"
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CLASS="REFSYNOPSISDIV"
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><A
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><A
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NAME="AEN4841"><H2
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NAME="AEN4841"><H2
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>Synopsis</H2
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>Synopsis</H2
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><TD
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><PRE
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><PRE
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CLASS="SYNOPSIS"
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CLASS="SYNOPSIS"
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>cdl_option <name> {
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>cdl_option <name> {
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no_define
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no_define
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…
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…
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}</PRE
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}</PRE
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></TD
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></TD
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CLASS="REFSECT1"
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CLASS="REFSECT1"
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><A
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><A
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NAME="AEN4843"
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NAME="AEN4843"
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></A
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></A
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><H2
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><H2
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>Description</H2
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>Description</H2
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><P
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><P
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>By default all active and enabled properties result in either one or
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>By default all active and enabled properties result in either one or
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two <TT
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two <TT
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CLASS="LITERAL"
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CLASS="LITERAL"
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>#define'd</TT
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>#define'd</TT
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> symbols in the package's
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> symbols in the package's
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configuration header file, and this is one of the main ways in which
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configuration header file, and this is one of the main ways in which
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options can affect packages at build-time. It is possible to suppress
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options can affect packages at build-time. It is possible to suppress
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the default <TT
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the default <TT
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CLASS="LITERAL"
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CLASS="LITERAL"
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>#define's</TT
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>#define's</TT
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> by specifying a
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> by specifying a
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<SPAN
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<SPAN
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CLASS="PROPERTY"
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CLASS="PROPERTY"
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>no_define</SPAN
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>no_define</SPAN
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> property in the body of an option or other <SPAN
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> property in the body of an option or other <SPAN
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CLASS="APPLICATION"
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CLASS="APPLICATION"
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>CDL</SPAN
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>CDL</SPAN
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> entity.
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> entity.
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This property takes no arguments and should occur only once in a given
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This property takes no arguments and should occur only once in a given
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body. </P
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body. </P
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><P
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><P
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>The <SPAN
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>The <SPAN
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CLASS="PROPERTY"
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CLASS="PROPERTY"
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>no_define</SPAN
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>no_define</SPAN
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> property is frequently used in conjunction with one of
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> property is frequently used in conjunction with one of
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the other header-file related properties such as <SPAN
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the other header-file related properties such as <SPAN
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CLASS="PROPERTY"
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CLASS="PROPERTY"
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>define</SPAN
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>define</SPAN
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>. If one of
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>. If one of
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the other properties is used to export the required information to a
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the other properties is used to export the required information to a
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configuration header file then often there is little point in
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configuration header file then often there is little point in
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exporting the default <TT
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exporting the default <TT
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CLASS="LITERAL"
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CLASS="LITERAL"
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>#define</TT
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>#define</TT
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> as
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> as
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well — in fact there could be a name clash. The
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well — in fact there could be a name clash. The
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<SPAN
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<SPAN
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CLASS="PROPERTY"
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CLASS="PROPERTY"
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>no_define</SPAN
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>no_define</SPAN
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> property can also be useful if the sole purpose of an
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> property can also be useful if the sole purpose of an
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option is to affect which files get built, and the default
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option is to affect which files get built, and the default
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<TT
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<TT
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CLASS="LITERAL"
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CLASS="LITERAL"
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>#define</TT
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>#define</TT
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> would never get tested in any source code.
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> would never get tested in any source code.
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However in such cases the default <TT
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However in such cases the default <TT
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CLASS="LITERAL"
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CLASS="LITERAL"
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>#define</TT
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>#define</TT
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> is
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> is
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mostly harmless and there is little to be gained by suppressing it.</P
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mostly harmless and there is little to be gained by suppressing it.</P
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></DIV
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></DIV
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><DIV
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><DIV
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CLASS="REFSECT1"
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CLASS="REFSECT1"
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><A
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><A
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NAME="AEN4857"
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NAME="AEN4857"
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></A
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></A
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><H2
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><H2
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>Example</H2
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>Example</H2
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><TABLE
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WIDTH="70%"
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><TR
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><TR
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><TD
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><TD
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><PRE
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><PRE
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CLASS="PROGRAMLISTING"
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CLASS="PROGRAMLISTING"
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>cdl_component CYG_HAL_STARTUP {
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>cdl_component CYG_HAL_STARTUP {
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display "Startup type"
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display "Startup type"
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flavor data
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flavor data
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legal_values { "RAM" "ROM" }
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legal_values { "RAM" "ROM" }
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default_value {"RAM"}
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default_value {"RAM"}
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no_define
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no_define
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define -file system.h CYG_HAL_STARTUP
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define -file system.h CYG_HAL_STARTUP
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…
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…
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}</PRE
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}</PRE
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></TD
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></TD
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></TR
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></TR
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CLASS="REFSECT1"
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CLASS="REFSECT1"
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><A
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><A
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NAME="AEN4860"
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NAME="AEN4860"
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></A
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></A
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><H2
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><H2
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>See Also</H2
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>See Also</H2
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><P
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><P
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>Properties <A
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>Properties <A
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HREF="ref.define.html"
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HREF="ref.define.html"
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><SPAN
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><SPAN
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CLASS="PROPERTY"
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CLASS="PROPERTY"
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>define</SPAN
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>define</SPAN
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></A
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></A
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>,
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>,
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<A
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<A
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HREF="ref.define-format.html"
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HREF="ref.define-format.html"
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><SPAN
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><SPAN
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CLASS="PROPERTY"
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CLASS="PROPERTY"
|
>define_format</SPAN
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>define_format</SPAN
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></A
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></A
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>,
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>,
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<A
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<A
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HREF="ref.define-header.html"
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HREF="ref.define-header.html"
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><SPAN
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><SPAN
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CLASS="PROPERTY"
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CLASS="PROPERTY"
|
>define_header</SPAN
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>define_header</SPAN
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></A
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></A
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>,
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>,
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<A
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<A
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HREF="ref.define-proc.html"
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HREF="ref.define-proc.html"
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><SPAN
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><SPAN
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CLASS="PROPERTY"
|
CLASS="PROPERTY"
|
>define_proc</SPAN
|
>define_proc</SPAN
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></A
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></A
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> and
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> and
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<A
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<A
|
HREF="ref.if-define.html"
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HREF="ref.if-define.html"
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><SPAN
|
><SPAN
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CLASS="PROPERTY"
|
CLASS="PROPERTY"
|
>if_define</SPAN
|
>if_define</SPAN
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></A
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></A
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>.</P
|
>.</P
|
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