LinuxSoftware

Coding and tramping in Aotearoa / New Zealand

The GNU Compiler Collection

http://gcc.gnu.org/

Components

cpp, gcc, cc1, cc1plus

How do they fit together?

Finding the Search Path

Include files

cpp -v -x c++

Libraries and Programs

g++ -print-search-dirs

Predefined macros

http://www.linuxtopia.org/online_books/programming_tool_guides/redhat_using_cpp_c_preprocessor/predefined-macros.html 

__FILE__
__LINE__
C99 introduces __func__
__FUNCTION__
__DATE__
__TIME__
__STDC__
__STDC_VERSION__
__STDC_HOSTED__
__cplusplus
__GNUC__, __GNUC_MINOR__, __GNUC_PATCHLEVEL__
__OBJC__
__GNUG__
__STRICT_ANSI__
__BASE_FILE__
__INCLUDE_LEVEL__
__VERSION__
__OPTIMIZE__, __OPTIMIZE_SIZE__, __NO_INLINE__
__CHAR_UNSIGNED__
__REGISTER_PREFIX__
__USER_LABEL_PREFIX__
__SIZE_TYPE__, __PTRDIFF_TYPE__, __WCHAR_TYPE__, __WINT_TYPE__
__USING_SJLJ_EXCEPTIONS__
unix __unix__ 
_mips  __mips__
linux __linux__