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