47 lines
1.5 KiB
Ruby
47 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 "https://www.mpfr.org/"
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url "https://ftp.gnu.org/gnu/mpfr/mpfr-4.0.2.tar.xz"
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mirror "https://ftpmirror.gnu.org/mpfr/mpfr-4.0.2.tar.xz"
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sha256 "1d3be708604eae0e42d578ba93b390c2a145f17743a744d8f3f8c2ad5855a38a"
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bottle do
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cellar :any
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sha256 "cfce7ab866e98360c9364cd924da620ae7936d3a224d686aacc209c2107d19aa" => :mojave
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sha256 "bf5d21e7e8e549f7e8d07791a90f44a487f4c7151897b7c64d02928b5bd73520" => :high_sierra
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sha256 "4fb1860a481e24c70eefc8e5782030612840f1bb8f50586ca76a4c6c53629deb" => :sierra
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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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