mirror of
https://github.com/NixOS/nixpkgs.git
synced 2024-12-22 05:33:23 +00:00
58 lines
2.1 KiB
Diff
58 lines
2.1 KiB
Diff
diff --git a/core/Main.cc b/core/Main.cc
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index 2b0d97b..9ba985d 100644
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--- a/core/Main.cc
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+++ b/core/Main.cc
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@@ -77,9 +77,13 @@ int main(int argc, char** argv)
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setUsageHelp("USAGE: %s [options] <input-file> <result-output-file>\n\n where input may be either in plain or gzipped DIMACS.\n");
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// printf("This is MiniSat 2.0 beta\n");
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-#if defined(__linux__)
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- fpu_control_t oldcw, newcw;
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- _FPU_GETCW(oldcw); newcw = (oldcw & ~_FPU_EXTENDED) | _FPU_DOUBLE; _FPU_SETCW(newcw);
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+#if defined(__linux__) && defined(__x86_64__)
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+ fenv_t fenv;
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+
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+ fegetenv(&fenv);
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+ fenv.__control_word &= ~0x300; /* _FPU_EXTENDED */
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+ fenv.__control_word |= 0x200; /* _FPU_DOUBLE */
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+ fesetenv(&fenv);
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printf("WARNING: for repeatability, setting FPU to use double precision\n");
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#endif
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// Extra options:
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diff --git a/simp/Main.cc b/simp/Main.cc
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index 2804d7f..7fbdb33 100644
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--- a/simp/Main.cc
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+++ b/simp/Main.cc
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@@ -78,9 +78,13 @@ int main(int argc, char** argv)
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setUsageHelp("USAGE: %s [options] <input-file> <result-output-file>\n\n where input may be either in plain or gzipped DIMACS.\n");
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// printf("This is MiniSat 2.0 beta\n");
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-#if defined(__linux__)
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- fpu_control_t oldcw, newcw;
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- _FPU_GETCW(oldcw); newcw = (oldcw & ~_FPU_EXTENDED) | _FPU_DOUBLE; _FPU_SETCW(newcw);
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+#if defined(__linux__) && defined(__x86_64__)
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+ fenv_t fenv;
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+
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+ fegetenv(&fenv);
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+ fenv.__control_word &= ~0x300; /* _FPU_EXTENDED */
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+ fenv.__control_word |= 0x200; /* _FPU_DOUBLE */
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+ fesetenv(&fenv);
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printf("WARNING: for repeatability, setting FPU to use double precision\n");
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#endif
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// Extra options:
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diff --git a/utils/System.h b/utils/System.h
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index 1758192..840bee5 100644
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--- a/utils/System.h
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+++ b/utils/System.h
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@@ -21,8 +21,8 @@ OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWA
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#ifndef Minisat_System_h
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#define Minisat_System_h
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-#if defined(__linux__)
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-#include <fpu_control.h>
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+#if defined(__linux__) && defined(__x86_64__)
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+#include <fenv.h>
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#endif
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#include "mtl/IntTypes.h"
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