On an OS X machine, the sympow build prints a warning at the start. Well, it calls it an error and then proceeds to build anyway:
------------- CFLAGS for SYMPOW: -std=gnu17 -fno-fast-math -mfpmath=sse -ffp-contract=on -Dx86 -O0 The double precision of your FPU is 105 bits. Error: the Quad Double library used by SYMPOW assumes IEEE-754 double precision numbers with exactly 53 bits in the mantissa (64 bits in total). Unfortunately, this is not the case on your system and we currently have no workaround for your system. Running SYMPOW will almost certainly fail on some inputs. Please report this problem to sage-devel (http://groups.google.com/group/sage-devel), mentioning in particular your operating system, processor type and compiler version (run gcc --version). ------------- So I'm reporting to sage-devel. This is with OS X 11.6. For processor type: % sysctl -n machdep.cpu.brand_string Intel(R) Xeon(R) W-2140B CPU @ 3.20GHz And gcc: % gcc --version Configured with: --prefix=/Applications/Xcode.app/Contents/Developer/usr --with-gxx-include-dir=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/c++/4.2.1 Apple clang version 13.0.0 (clang-1300.0.29.3) Target: x86_64-apple-darwin20.6.0 Thread model: posix InstalledDir: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/sage-devel/7cf8fac7-e81b-4d6c-aeb3-275260b21d4en%40googlegroups.com.
