diff options
Diffstat (limited to 'libstdc++-v3/docs')
| -rw-r--r-- | libstdc++-v3/docs/html/17_intro/porting.texi | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/libstdc++-v3/docs/html/17_intro/porting.texi b/libstdc++-v3/docs/html/17_intro/porting.texi index bafa62d1d19..6f3618c637d 100644 --- a/libstdc++-v3/docs/html/17_intro/porting.texi +++ b/libstdc++-v3/docs/html/17_intro/porting.texi @@ -156,6 +156,28 @@ port doesn't use thunks (although it is unclear that this is still useful since libio support isn't currently working and the g++ v3 ABI invalidates the assumption that some ports don't use thunks). +@code{_GLIBCPP_USE_C99_CHECK} may be defined to 1 to check C99 +function declarations (which are not covered by specialization below) +found in system headers against versions found in the library headers +derived from the standard. + +@code{_GLIBCPP_USE_C99_DYNAMIC} may be defined to an expression that +yields 0 if and only if the system headers are exposing proper support +for C99 functions (which are not covered by specialization below). If +defined, it must be 0 while bootstrapping the compiler/rebuilding the +library. + +@code{_GLIBCPP_USE_C99_LONG_LONG_CHECK} may be defined to 1 to check +the set of C99 long long function declarations found in system headers +against versions found in the library headers derived from the +standard. + +@code{_GLIBCPP_USE_C99_LONG_LONG_DYNAMIC} may be defined to an +expression that yields 0 if and only if the system headers are +exposing proper support for the set of C99 long long functions. If +defined, it must be 0 while bootstrapping the compiler/rebuilding the +library. + @code{_GLIBCPP_USE_C99_FP_MACROS_DYNAMIC} may be defined to an expression that yields 0 if and only if the system headers are exposing proper support for the related set of macros. If defined, |