![](https://secure.gravatar.com/avatar/db2b8768e55888615195a7492260fd1b.jpg?s=120&d=mm&r=g)
Hi, I could succesfully compile numarray (see numpy.org) on Cygwin (updated last week), using the standard Cygwin python. However many tests fail, due to "missing" overflow or "division by zero" exceptions. I took a quick look at the test-failures of numarray on numpy. The first problem is that we don't get a "Overflow error" warning when it is expected: ,----[Cygwin] | >>> array([1, 8, 100, 100], type=Int8) * array([1, 8, 100, -100], type=Int8) | array([ 1, 64, 127, -128], type=Int8) `---- Whereas on Linux we get ,----[Linux] | >>> array([1, 8, 100, 100], type=Int8) * array([1, 8, 100, -100], type=Int8) | Warning: Encountered overflow(s) in multiply | array([ 1, 64, 127, -128], type=Int8) `---- Is this related to a configuration option of python (--with-sigfpe ?) or a "feature" of the Cygwin libm/libc? Any ideas? Btw, I tried to rebuild python (cvs maint22-release patched for _socket) but got the following errors with the math module (similar for cmath): ,---- | gcc -shared -Wl,--enable-auto-image-base build/temp.cygwin-1.3.12-i686-2.2/mathmodule.o -L/usr/local/lib -L. -lm -lpython2.2 -o build/lib.cygwin-1.3.12-i686-2.2/math.dll | build/temp.cygwin-1.3.12-i686-2.2/mathmodule.o: In function `math_1': | /home/software/programming/compiler/python/dist/src/Modules/mathmodule.c:57: undefined reference to `PyFPE_counter' | /home/software/programming/compiler/python/dist/src/Modules/mathmodule.c:57: undefined reference to `PyFPE_counter' | /home/software/programming/compiler/python/dist/src/Modules/mathmodule.c:57: undefined reference to `PyFPE_jbuf' | /home/software/programming/compiler/python/dist/src/Modules/mathmodule.c:57: undefined reference to `PyFPE_counter' | /home/software/programming/compiler/python/dist/src/Modules/mathmodule.c:59: undefined reference to `PyFPE_dummy' | /home/software/programming/compiler/python/dist/src/Modules/mathmodule.c:59: undefined reference to `PyFPE_counter' | build/temp.cygwin-1.3.12-i686-2.2/mathmodule.o: In function `math_2': | /home/software/programming/compiler/python/dist/src/Modules/mathmodule.c:74: undefined reference to `PyFPE_counter' | /home/software/programming/compiler/python/dist/src/Modules/mathmodule.c:74: undefined reference to `PyFPE_counter' | /home/software/programming/compiler/python/dist/src/Modules/mathmodule.c:74: undefined reference to `PyFPE_jbuf' | /home/software/programming/compiler/python/dist/src/Modules/mathmodule.c:74: undefined reference to `PyFPE_counter' | /home/software/programming/compiler/python/dist/src/Modules/mathmodule.c:76: undefined reference to `PyFPE_dummy' | /home/software/programming/compiler/python/dist/src/Modules/mathmodule.c:76: undefined reference to `PyFPE_counter' | build/temp.cygwin-1.3.12-i686-2.2/mathmodule.o: In function `math_ldexp': | /home/software/programming/compiler/python/dist/src/Modules/mathmodule.c:173: undefined reference to `PyFPE_counter' | /home/software/programming/compiler/python/dist/src/Modules/mathmodule.c:173: undefined reference to `PyFPE_counter' | /home/software/programming/compiler/python/dist/src/Modules/mathmodule.c:173: undefined reference to `PyFPE_jbuf' | /home/software/programming/compiler/python/dist/src/Modules/mathmodule.c:173: undefined reference to `PyFPE_counter' | /home/software/programming/compiler/python/dist/src/Modules/mathmodule.c:175: undefined reference to `PyFPE_dummy' | /home/software/programming/compiler/python/dist/src/Modules/mathmodule.c:175: undefined reference to `PyFPE_counter' | collect2: ld returned 1 exit status | WARNING: building of extension "math" failed: command 'gcc' failed with exit status 1 `---- Greetings, Jochen -- University of North Carolina phone: +1-919-962-4403 Department of Chemistry phone: +1-919-962-1579 Venable Hall CB#3290 (Kenan C148) fax: +1-919-843-6041 Chapel Hill, NC 27599, USA GnuPG key: 44BCCD8E
participants (1)
-
Jochen Küpper