Ian Hinder:

Cactus supports a variable OPTIMISE=yes/no to control whether optimisation is performed during compilation. Setting this variable to "yes" (for example, make sim-config OPTIMISE=yes) adds the flags in C_OPTIMISE_FLAGS to CFLAGS so that optimisation is performed. This is the default. Setting OPTIMISE=no does not add the flags. For gcc, this results in an unoptimised configuration as gcc assumes -O0 as the default. The Intel compiler, however, uses -O2 as the default. Hence, setting OPTIMISE=no has no effect on Intel, and -O2 is still used.

This patch adds new configuration options C_NO_OPTIMISE_FLAGS, CXX_NO_OPTIMISE_FLAGS, F77_NO_OPTIMISE_FLAGS and F90_NO_OPTIMISE_FLAGS to complement the *_OPTIMISE_FLAGS options. These are added to the flags when OPTIMISE=no is used, and they default to -O0, which for the commonly used gcc and Intel compilers will lead to an unoptimised configuration.

This requires a CONFIG-reconfig, but this is not enforced because this option doesn't affect most people, and failing to -reconfig is not fatal.


git-svn-id: http://svn.cactuscode.org/flesh/trunk@4681 17b73243-c579-4c4c-a9d2-2d5706c11dac

0 files changed, 0 insertions, 0 deletions