patches/ppl/0.10.2/100-fix-configure-with-gmp-5_0_1.patch
author Michael Hope <michael.hope@linaro.org>
Thu Sep 29 12:40:42 2011 +1300 (2011-09-29)
changeset 2695 f2495884ca3e
permissions -rw-r--r--
config: add a 'auto' value for the number of parallel jobs

When CT_PARALLEL_JOBS is -1, set the number of parallel jobs to the
number of online CPUs + 1. Update documentation to match.

I find this useful when building in the cloud. You can use the same
.config file and have the build adapt to the number of processors
available. Limited testing shows that NCPUS+1 is faster than NCPUS+0
or NCPUS+2.

Signed-off-by: Michael Hope <michael.hope@linaro.org>
     1 --- ppl-0.10.2/configure.orig	2010-08-04 21:48:19.000000000 -0400
     2 +++ ppl-0.10.2/configure	2010-08-04 21:50:04.000000000 -0400
     3 @@ -16443,6 +16443,10 @@
     4  #GMP version 4.1.3 or higher is required
     5  #endif
     6  
     7 +#ifndef BITS_PER_MP_LIMB
     8 +#define BITS_PER_MP_LIMB GMP_LIMB_BITS
     9 +#endif
    10 +
    11  int
    12  main() {
    13    std::string header_version;
    14 @@ -16469,11 +16473,11 @@
    15      return 1;
    16    }
    17  
    18 -  if (sizeof(mp_limb_t)*CHAR_BIT != GMP_LIMB_BITS
    19 -      || GMP_LIMB_BITS != mp_bits_per_limb) {
    20 +  if (sizeof(mp_limb_t)*CHAR_BIT != BITS_PER_MP_LIMB
    21 +      || BITS_PER_MP_LIMB != mp_bits_per_limb) {
    22      std::cerr
    23        << "GMP header (gmp.h) and library (ligmp.*) bits-per-limb mismatch:\n"
    24 -      << "header gives " << __GMP_BITS_PER_MP_LIMB << ";\n"
    25 +      << "header gives " << BITS_PER_MP_LIMB << ";\n"
    26        << "library gives " << mp_bits_per_limb << ".\n"
    27        << "This probably means you are on a bi-arch system and\n"
    28        << "you are compiling with the wrong header or linking with\n"