48 lines
1.5 KiB
Ruby
48 lines
1.5 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-4.0.0.tar.xz"
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mirror "https://ftpmirror.gnu.org/mpfr/mpfr-4.0.0.tar.xz"
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mirror "http://www.mpfr.org/mpfr-4.0.0/mpfr-4.0.0.tar.xz"
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sha256 "fbe2cd1418b321f5c899ce4f0f0f4e73f5ecc7d02145b0e1fd096f5c3afb8a1d"
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bottle do
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cellar :any
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sha256 "e09cdf149a648968e92fb36f88e00746c9e63424f25738bebddb85904c27ba10" => :high_sierra
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sha256 "ff7915ee0cc083fda9c60d1a6c57686d3c64a06cb688965057072cb8b52bce92" => :sierra
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sha256 "01a35f06478a922f99469c2a98bf4de316a4a1271136941078483dc706a12131" => :el_capitan
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end
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depends_on "gmp"
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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
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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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