On Jan 28, 2006, at 3:13 AM, zmoelnig@iem.at wrote:
Zitiere Hans-Christoph Steiner hans@eds.org:
Any problem with using the right functions on Mac OS X? This should speed things up a bit, no? I'll make the patch if there's no problem...
yes! the "right functions" have been only been added to recent versions of os-X. so abandoning the macros would make pd unusable on older versions of this os. in zexy and Gem, jamie has incorporated a more or less generic way (without(!) autoconf, just header magic) to test whether the right functions exist or not.
This is what autoconf is all about. Its pretty easy to do, and it would look something like this in x_arithmetic.c:
#if defined(MSW) || ( defined(__APPLE__) && !defined(HAVE_LIBMX) ) #define sinf sin #define cosf cos #define atanf atan #define atan2f atan2 #define sqrtf sqrt #define logf log #define expf exp #define fabsf fabs #define powf pow #endif
and this in configure.in:
dnl Checking for `powf' function in -lmx, which provides : AC_CHECK_LIB(mx, powf, PDLIB="$PDLIB -lmx"; MORECFLAGS="$MORECFLAGS -DHAVE_LIBMX", echo "using libmx for single precision")
And by the way, compiling with gcc 4.0 on Mac OS X automatically includes libmx, so Pd builds on Mac OS X 10.4 will only run on 10.3.9 or newer (unless you make it compile with gcc 3.3 and compatibility libs).
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