Mpfr Compile Error
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at this version if possible. What are the differences between MPF from GMP and MPFR? How to convert my program written using MPF to MPFR? At configure time, I get the mpfr install error: libgmp not found or uses a different ABI. I get undefined reference mpfr documentation to __gmp_get_memory_functions. When I link my program with MPFR, I get undefined reference to __gmpXXXX. My program crashes with high mpfr c++ precisions. Though I have increased the precision, the results are not more accurate. How can I detect MPFR installation using autoconf or pkg-config? How to cite MPFR in a scientific publication? When configure: error: libmpfr not found or uses a different abi. I build MPFR, I get an error asking me to recompile with -fPIC. 1. What are the differences between MPF from GMP and MPFR? The main differences are: The precision of a MPFR variable is the exact number of bits used for its mantissa, whereas in MPF, the precision requested by the user is a minimum value (MPF generally uses a higher precision). With
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the additional difference below, this implies that the MPFR results do not depend on the number of bits (16, 32, 64 or more) of the underlying architecture. As a consequence, MPFR uses a base-2 exponent, whereas in MPF, this is a base-232 or base-264 exponent, depending on the limb size. For this reason (and other internal ones), the maximum exponent range in MPFR is different (and smaller, if the exponent is represented by the same type as in MPF). MPFR provides an additional rounding mode argument to its functions; furthermore, it is guaranteed that the result of any operation is the nearest possible floating-point value from the exact result (considering the input variables as exact values), taking into account the precision of the destination variable and the rounding mode. MPFR also says whether the rounded result is above or below the exact result. MPFR supports much more functions (in particular transcendental functions such as exponentials, logarithms, trigonometric functions and so on) and special values: signed zeros, infinities, not-a-number (NaN). 2. How to convert my program written using MPF to MPFR? You need to add r to the function names, and to specify
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Stack Overflow the company Business Learn more about hiring developers or posting ads with libgmp not found or uses a different abi (including static vs shared) us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is install mpc a community of 6.2 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Cannot configure gcc - mpfr not found up vote 12 down vote favorite http://www.mpfr.org/faq.html 7 I'm installing gcc 4.5.2 with mpc 0.8.2, mpfr 3.1.0, and gmp 5.0.2. I've copied each of the mpc, mpfr, and gmp directories into the gcc-4.5.2 directory (removing the version tags). GCC successfully configures. When I run make, however, I get: checking for MPFR... no configure: error: libmpfr not found or uses a different ABI. make[1]: *** [configure-mpc] Error 1 make[1]: leaving directory cross/build/gcc make: *** [all] Error 2 MPFR http://stackoverflow.com/questions/9297933/cannot-configure-gcc-mpfr-not-found is located in cross/src/gcc-4.5.2/mpfr. MPFR already was built successfully. Anyone know why mpc is unable to configure? I think the problem may partially have to do with the libs/headers for MPFR being in cross/src/gcc-4.5.2/mpfr/src and not in cross/src/gcc-4.5.2/mpfr. All I did was extract and copy though- this is the default directory structure. gcc compilation mpfr share|improve this question edited Apr 6 '12 at 7:22 joelparkerhenderson 21.1k105998 asked Feb 15 '12 at 17:12 Robert Mason 2,01621433 add a comment| 6 Answers 6 active oldest votes up vote 23 down vote I was having the same issue. But it seems this happens because latest version of MPFR (in your case 3.1.0) changed the directory hierarchy. Instead, before configuring, run the following when you are inside gcc's source directory (may only work for gcc4.5.2 or later): ./contrib/download_prerequisites It will download the necessary MPFR, GMP and MPC versions (but probably not the latest versions) and unpack those for gcc installation. After that, you can continue with your configure, make and make install. Hope this helps. -Rakib share|improve this answer edited Jun 23 '15 at 15:22 answered Apr 26 '12 at 19:09 Rakib 519415 Awesome answer. This works great. I did not know that the libs could be downloaded automatically. –user1356386
Building GCC requires GMP 4.2+, MPFR 2.3.1+ and MPC 0.8.0+. From: Satya Prakash Prasad
[ subject ] [ author ] On 2014-04-14 19:28:41 -0600, Matthew Niemerg wrote: > As suggested, here are the config.log files for both GMP and MPFR (renamed > appropriately). As you can see, I did both the clang compiler and the > gcc-4.7.3 compiler, with both yielding the same error message. 1. In config.log_mpfr_clang: conftest.c:59:27: error: use of undeclared identifier 'BYTES_PER_MP_LIMB' return GMP_NUMB_BITS == BYTES_PER_MP_LIMB * CHAR_BIT ^ conftest.c:60:34: error: use of undeclared identifier 'BYTES_PER_MP_LIMB' && sizeof(mp_limb_t) == BYTES_PER_MP_LIMB ? 0 : 1; ^ Even though configure outputs "error: GMP_NUMB_BITS is incorrect.", the real error is that BYTES_PER_MP_LIMB is undefined. This seems to be a change in GMP 6 (I can confirm). So, don't use --with-gmp-build for the moment. We'll publish a patch for MPFR 3.1.2. 2. In config.log_mpfr_gcc-4.7.3: conftest.c:59:27: error: 'BYTES_PER_MP_LIMB' undeclared (first use in this function) So, same problem. In this second case, there is another problem, though: > On Mon, Apr 14, 2014 at 5:29 PM, Vincent Lefevre