diff options
| -rw-r--r-- | pkgs/applications/science/logic/cvc4/default.nix | 5 | ||||
| -rw-r--r-- | pkgs/applications/science/logic/cvc4/minisat-fenv.patch | 65 |
2 files changed, 70 insertions, 0 deletions
diff --git a/pkgs/applications/science/logic/cvc4/default.nix b/pkgs/applications/science/logic/cvc4/default.nix index 6b213226635..25effdcd403 100644 --- a/pkgs/applications/science/logic/cvc4/default.nix +++ b/pkgs/applications/science/logic/cvc4/default.nix @@ -22,6 +22,11 @@ stdenv.mkDerivation rec { "--with-boost=${boost.dev}" ]; + prePatch = '' + patch -p1 -i ${./minisat-fenv.patch} -d src/prop/minisat + patch -p1 -i ${./minisat-fenv.patch} -d src/prop/bvminisat + ''; + preConfigure = '' patchShebangs ./src/ ''; diff --git a/pkgs/applications/science/logic/cvc4/minisat-fenv.patch b/pkgs/applications/science/logic/cvc4/minisat-fenv.patch new file mode 100644 index 00000000000..686d5a1c5b4 --- /dev/null +++ b/pkgs/applications/science/logic/cvc4/minisat-fenv.patch @@ -0,0 +1,65 @@ +From 7f1016ceab9b0f57a935bd51ca6df3d18439b472 Mon Sep 17 00:00:00 2001 +From: Will Dietz <w@wdtz.org> +Date: Tue, 17 Oct 2017 22:57:02 -0500 +Subject: [PATCH] use fenv instead of non-standard fpu_control + +--- + core/Main.cc | 8 ++++++-- + simp/Main.cc | 8 ++++++-- + utils/System.h | 2 +- + 3 files changed, 13 insertions(+), 5 deletions(-) + +diff --git a/core/Main.cc b/core/Main.cc +index 2b0d97b..8ad95fb 100644 +--- a/core/Main.cc ++++ b/core/Main.cc +@@ -78,8 +78,12 @@ int main(int argc, char** argv) + // printf("This is MiniSat 2.0 beta\n"); + + #if defined(__linux__) +- fpu_control_t oldcw, newcw; +- _FPU_GETCW(oldcw); newcw = (oldcw & ~_FPU_EXTENDED) | _FPU_DOUBLE; _FPU_SETCW(newcw); ++ fenv_t fenv; ++ ++ fegetenv(&fenv); ++ fenv.__control_word &= ~0x300; /* _FPU_EXTENDED */ ++ fenv.__control_word |= 0x200; /* _FPU_DOUBLE */ ++ fesetenv(&fenv); + printf("WARNING: for repeatability, setting FPU to use double precision\n"); + #endif + // Extra options: +diff --git a/simp/Main.cc b/simp/Main.cc +index 2804d7f..39bfb71 100644 +--- a/simp/Main.cc ++++ b/simp/Main.cc +@@ -79,8 +79,12 @@ int main(int argc, char** argv) + // printf("This is MiniSat 2.0 beta\n"); + + #if defined(__linux__) +- fpu_control_t oldcw, newcw; +- _FPU_GETCW(oldcw); newcw = (oldcw & ~_FPU_EXTENDED) | _FPU_DOUBLE; _FPU_SETCW(newcw); ++ fenv_t fenv; ++ ++ fegetenv(&fenv); ++ fenv.__control_word &= ~0x300; /* _FPU_EXTENDED */ ++ fenv.__control_word |= 0x200; /* _FPU_DOUBLE */ ++ fesetenv(&fenv); + printf("WARNING: for repeatability, setting FPU to use double precision\n"); + #endif + // Extra options: +diff --git a/utils/System.h b/utils/System.h +index 1758192..c0ad13a 100644 +--- a/utils/System.h ++++ b/utils/System.h +@@ -22,7 +22,7 @@ OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWA + #define Minisat_System_h + + #if defined(__linux__) +-#include <fpu_control.h> ++#include <fenv.h> + #endif + + #include "mtl/IntTypes.h" +-- +2.14.2 + |