GCC 4.4 Release Series
Changes, New Features, and Fixes

Caveats

• __builtin_stdarg_start has been completely removed from GCC. Support for <varargs.h> had been deprecated since GCC 4.0. Use __builtin_va_start as a replacement.
• Some of the errors issued by the C++ front end that could be downgraded to warnings in previous releases by using -fpermissive are now warnings by default. They can be converted into errors by using -pedantic-errors.

General Optimizer Improvements

New Languages and Language specific improvements

C family

C++

• Improved experimental support for the upcoming ISO C++ standard, C++0x, including support for inline namespaces.
• Those errors that may be downgraded to warnings to build legacy code now mention -fpermissive when -fdiagnostics-show-option is enabled.

Runtime Library (libstdc++)

Fortran

Java (GCJ)

New Targets and Target Specific Improvements

IA-32/x86-64

• Support for Intel AES built-in functions and code generation are available via -maes.
• Support for Intel PCLMUL built-in function and code generation are available via -mpclmul.

Documentation improvements

Other significant improvements

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Last modified 2008-04-13