homebrew-core/Formula/mpfr.rb

56 lines
1.7 KiB
Ruby

class Mpfr < Formula
desc "C library for multiple-precision floating-point computations"
homepage "http://www.mpfr.org/"
url "https://ftp.gnu.org/gnu/mpfr/mpfr-3.1.6.tar.xz"
mirror "https://ftpmirror.gnu.org/mpfr/mpfr-3.1.6.tar.xz"
sha256 "7a62ac1a04408614fccdc506e4844b10cf0ad2c2b1677097f8f35d3a1344a950"
bottle do
cellar :any
sha256 "a8f99b5754688942fdb644a6c00f37d3c4311bcd4477f58b6dc356b0f32ee29d" => :sierra
sha256 "853b75811634d2d0f10772dd68f0b81b46af29dab53588edcac1cd2bebc16a3c" => :el_capitan
sha256 "e1687f23e9e15cad619bd857ecb06de89add3f9f392e426484c10daa0a4c7ec0" => :yosemite
end
depends_on "gmp"
fails_with :clang do
build 421
cause <<-EOS.undent
clang build 421 segfaults while building in superenv;
see https://github.com/Homebrew/homebrew/issues/15061
EOS
end
def install
system "./configure", "--disable-dependency-tracking", "--prefix=#{prefix}",
"--disable-silent-rules"
system "make"
system "make", "check"
system "make", "install"
end
test do
(testpath/"test.c").write <<-EOS.undent
#include <mpfr.h>
#include <math.h>
#include <stdlib.h>
int main() {
mpfr_t x, y;
mpfr_inits2 (256, x, y, NULL);
mpfr_set_ui (x, 2, MPFR_RNDN);
mpfr_root (y, x, 2, MPFR_RNDN);
mpfr_pow_si (x, y, 4, MPFR_RNDN);
mpfr_add_si (y, x, -4, MPFR_RNDN);
mpfr_abs (y, y, MPFR_RNDN);
if (fabs(mpfr_get_d (y, MPFR_RNDN)) > 1.e-30) abort();
return 0;
}
EOS
system ENV.cc, "test.c", "-L#{lib}", "-L#{Formula["gmp"].opt_lib}",
"-lgmp", "-lmpfr", "-o", "test"
system "./test"
end
end