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Diffstat (limited to 'libstdc++-v3/doc/html/manual/internals.html')
| -rw-r--r-- | libstdc++-v3/doc/html/manual/internals.html | 14 |
1 files changed, 0 insertions, 14 deletions
diff --git a/libstdc++-v3/doc/html/manual/internals.html b/libstdc++-v3/doc/html/manual/internals.html index f61b0b12b80..08c1a1829f2 100644 --- a/libstdc++-v3/doc/html/manual/internals.html +++ b/libstdc++-v3/doc/html/manual/internals.html @@ -41,20 +41,6 @@ OS portion of the triplet (the default), then nothing needs to be changed. </p><p>The first file to create in this directory, should be called <code class="code">os_defines.h</code>. This file contains basic macro definitions that are required to allow the C++ library to work with your C library. - </p><p>Several libstdc++ source files unconditionally define the macro -<code class="code">_POSIX_SOURCE</code>. On many systems, defining this macro causes -large portions of the C library header files to be eliminated -at preprocessing time. Therefore, you may have to <code class="code">#undef</code> this -macro, or define other macros (like <code class="code">_LARGEFILE_SOURCE</code> or -<code class="code">__EXTENSIONS__</code>). You won't know what macros to define or -undefine at this point; you'll have to try compiling the library and -seeing what goes wrong. If you see errors about calling functions -that have not been declared, look in your C library headers to see if -the functions are declared there, and then figure out what macros you -need to define. You will need to add them to the -<code class="code">CPLUSPLUS_CPP_SPEC</code> macro in the GCC configuration file for your -target. It will not work to simply define these macros in -<code class="code">os_defines.h</code>. </p><p>At this time, there are a few libstdc++-specific macros which may be defined: </p><p><code class="code">_GLIBCXX_USE_C99_CHECK</code> may be defined to 1 to check C99 |