Comment # 1 on bug 1133245 from Dr. Werner Fink

Could you please explain what yo are doing? AFAICS in libsigsegv the struct
_fpx_sw_bytes is not directly used:

 libsigsegv/libsigsegv-2.12> grep -rs _fpx_sw_bytes .
 libsigsegv/libsigsegv-2.12> 

therefore I suggest to have a look into the system headers

 /suse/werner> grep -rs _fpx_sw_bytes /usr/include/ /usr/lib64/gcc/
 /usr/include/bits/sigcontext.h:struct _fpx_sw_bytes
 /usr/include/arch-x86/asm/sigcontext.h:struct _fpx_sw_bytes {
 /usr/include/arch-x86/asm/sigcontext.h:         struct _fpx_sw_bytes   
sw_reserved;    /* Potential extended state is encoded here */
 /usr/include/arch-x86/asm/sigcontext.h:         struct _fpx_sw_bytes   
sw_reserved;    /* Potential extended state is encoded here */
 /usr/include/arch-x86/asm/sigcontext.h:  * (struct _fpx_sw_bytes)
 /usr/include/arch-x86/asm/sigcontext.h:  * (struct _fpx_sw_bytes)

beside this here is the same as with texlive binaries: I do not want to have
libsigsegv compiled(linked with lto support!