* gfortran.h: Add bitmasks for different FPE traps. Add fpe
member to options_t.
* invoke.texi: Document the new -ffpe-trap option.
* lang.opt: Add -ffpe-trap option.
* options.c (gfc_init_options): Initialize the FPE option.
(gfc_handle_fpe_trap_option): New function to parse the argument
of the -ffpe-trap option.
(gfc_handle_option): Add case for -ffpe-trap.
* trans-decl.c: Declare a tree for the set_fpe library function.
(gfc_build_builtin_function_decls): Build this tree.
(gfc_generate_function_code): Generate a call to set_fpe at
the beginning of the main program.
* trans.h: New tree for the set_fpe library function.
* Makefile.am: Add fpu.c to the build process, and
target-dependent code as fpu-target.h.
* Makefile.in: Regenerate.
* configure.ac: Add call to configure.host to set
FPU_HOST_HEADER.
* configure: Regenerate.
* config.h.in: Regenerate.
* aclocal.m4: Regenerate.
* configure.host: New script to determine which host-dependent
code should go in.
* libgfortran.h: Add fpe option, remove previous fpu_ options.
Add bitmasks for different FPE traps. Add prototype for set_fpu.
* runtime/environ.c: Remove environment variables to control
fpu behaviour.
* runtime/fpu.c (set_fpe): New function for the front-end.
* runtime/main.c (init): Set FPU state.
* config: New directory to store host-dependent code.
* config/fpu-387.h: New file with code handling the i387 FPU.
* config/fpu-glibc.h: New file with code for glibc systems.
* config/fpu-generic.h: Fallback for the most generic host. Issue
warnings.
From-SVN: r105328
This directory contains the GNU Compiler Collection (GCC).
The GNU Compiler Collection is free software. See the file COPYING
for copying permission. The manuals, and some of the runtime
libraries, are under different terms; see the individual source files
for details.
The directory INSTALL contains copies of the installation information
as HTML and plain text. The source of this information is
gcc/doc/install.texi. The installation information includes details
of what is included in the GCC sources and what files GCC installs.
See the file gcc/doc/gcc.texi (together with other files that it
includes) for usage and porting information. An online readable
version of the manual is in the files gcc/doc/gcc.info*.
See http://gcc.gnu.org/bugs.html for how to report bugs usefully.
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