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1.62. gcc44
1.62.1. RHBA-2009:1375: bug fix and enhancement update
The GNU Compiler Collection (GCC) version 4.4.0 is now available as Technology Preview.
The gcc44 packages provide the GNU Compiler Collection (GCC), which includes GNU compilers and related support libraries for C, C++, and Fortran programming languages. These packages also include libgomp, the GNU implementation of the OpenMP Application Programming Interface for multi-platform shared-memory parallel programming.
These new gcc43 packages provide a snapshot release of GCC version 4.4.0 as a Technology Preview. The libgomp version included in this release supports OpenMP version 3.0, a backward-compatible update to the OpenMP 2-series. (BZ#494563)
This release also features the following bug fixes:
- GFortran provided improper DWARF definitions for array parameters (i.e. missing upper bounds). This was caused by a bug in gcc/fortran/trans-decl.c that provided incorrect debugging information for variable-length, non-desc Fortran arrays. With this release, Gfortran now provides proper DWARF definitions for arrays parameters. (BZ#459374)
- A bug in GFortran made it possible for an internal compiler error to incorrectly escalate to a segmentation fault (instead of terminating the compilation gracefully). An upstream fix for this bug is now included with this release. (BZ#466928)
- Whenever gcc is used with the option -march=z9-ec or -march=z10, hardware decimal floating point (DFP) support is used by default. (BZ#474367)
- An improper option (i.e. %global _use_internal_dependency_generator 0) used during the build of libgomp in previous releases disabled "file coloring". This caused RPM to erroneously detect a file conflict on /usr/lib/libgomp.so.1.0.0 when installing libgomp from the Itanium compatibility layer. This release includes a properly-built libgomp, which resolves this issue. (BZ#503725)
Note
the -fgnu89-inline option instructs GCC to use traditional GNU semantics for inline functions when in C99 mode. In this Technology Preview, -fgnu89-inline is used by default. This is necessary because the Red Hat Enterprise Linux 5 header files expect GNU inline semantics instead of ISO C99 semantics. Further, these header files have not been adjusted to request inline settings through attributes. (BZ#493929)
All users interested in testing gcc44 as a Technology Preview are advised to install these packages. Note that this release replaces the gcc43 Technology Preview packages provided in previous releases.
