Bug#905536: python3.7: disable -O3 on ia64 due to compiler bug
Source: python3.7
Severity: normal
Tags: patch
User: debian-ia64@lists.debian.org
Usertags: ia64
Dear Maintainer,
The attached patch includes a number of fixes to python3.7's
debian/rules:
1) Due to a gcc bug[1], -O3 needs to be disabled on ia64.
2) The -O2 override for m68k added for Debian bug #326903 is
no longer needed, and was removed
3) The -mieee and -O2 overrides for DEC Alpha added for Debian
bug #212912 are no longer needed, and were removed
[1] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85412
-- System Information:
Debian Release: buster/sid
APT prefers unreleased
APT policy: (500, 'unreleased'), (500, 'unstable')
Architecture: ia64
Kernel: Linux 4.17.0-1-mckinley (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled
--- debian/rules.orig 2018-08-05 13:09:54.027342191 -0400
+++ debian/rules 2018-08-05 13:12:50.900361875 -0400
@@ -160,14 +160,9 @@
OPT_CFLAGS := $(filter-out -O%,$(DPKG_CFLAGS)) # default is -O3
DEBUG_CFLAGS := $(patsubst -O%,-Og,$(DPKG_CFLAGS))
-# on alpha, use -O2 only, use -mieee
-ifeq ($(DEB_HOST_ARCH),alpha)
- OPT_CFLAGS += -mieee
- DEBUG_CFLAGS += -mieee
- EXTRA_OPT_FLAGS += -O2
-endif
-ifeq ($(DEB_HOST_ARCH),m68k)
- EXTRA_OPT_FLAGS += -O2
+# on ia64, disable -O3 until gcc bug #85412 is fixed
+ifeq ($(DEB_HOST_ARCH),ia64)
+ EXTRA_OPT_CFLAGS += -O2
endif
ifneq (,$(filter $(DEB_HOST_ARCH), ppc64 ppc64el))
OPT_CFLAGS += -fexceptions
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