[Debian-med-packaging] Bug#881149: htslib FTBFS: test failures on i386

[Graham Inggs]

Control: tags -1 + patch

I found the documentation of the optimization flags for GCC 7.2.0 [1].
I was then able to bisect the list of flags enabled for -O2 and
determine which ones needed to be disabled in order to build htslib on
i386.  Patch follows.

--- a/debian/rules
+++ b/debian/rules
@@ -7,7 +7,9 @@

 include /usr/share/dpkg/default.mk

-export DEB_CFLAGS_MAINT_APPEND = -fno-strict-aliasing
+ifneq (,$(filter $(DEB_HOST_ARCH),i386))
+  export DEB_CFLAGS_MAINT_APPEND=-fno-strict-aliasing -fno-code-hoisting
+endif

 %:


[1] https://gcc.gnu.org/onlinedocs/gcc-7.2.0/gcc/Optimize-Options.html