There is one usage in boehm-gc/os_dep.c, but it is only used if SUNOS5SIGS is defined, which it is only if one of SUNOS5, DRSNX, HPUX, or FREEBSD is defined, which are all not using Linux-based glibc ports. Likewise, gcc/ada/init.c has a struct __siginfo occurence, but only for __FreeBSD__. config/rs6000/linux-unwind.h uses ``char siginfo[128]'', and config/s390/linux-unwind.h also uses a constant. I tested the following patch for sh-linux-gnu. This only covers one configuration, but the change is pretty mechanic anyway and every place that used to refer to struct siginfo already must have had <signal.h> in its include path, which is the same file that declares siginfo_t. OK to commit? This should probably also go into any active release branches, to keep them buildable once this glibc change ripples through? gcc/ * config/alpha/linux-unwind.h (alpha_fallback_frame_state): Use siginfo_t instead of struct siginfo. * config/bfin/linux-unwind.h (bfin_fallback_frame_state): Likewise. * config/i386/linux-unwind.h (x86_fallback_frame_state): Likewise. * config/ia64/linux-unwind.h (ia64_fallback_frame_state) (ia64_handle_unwabi): Likewise. * config/mips/linux-unwind.h (mips_fallback_frame_state): Likewise. * config/pa/linux-unwind.h (pa32_fallback_frame_state): Likewise. * config/sh/linux-unwind.h (shmedia_fallback_frame_state) (sh_fallback_frame_state): Likewise. * config/tilepro/linux-unwind.h (tile_fallback_frame_state): Likewise. * config/xtensa/linux-unwind.h (xtensa_fallback_frame_state): Likewise. --- diff -urN gcc-linaro-4.6-2012.02/gcc/config/alpha/linux-unwind.h gcc-linaro-4.6-2012.02.new/gcc/config/alpha/linux-unwind.h --- gcc-linaro-4.6-2012.02/gcc/config/alpha/linux-unwind.h 2012-02-07 11:33:31.000000000 +0100 +++ gcc-linaro-4.6-2012.02.new/gcc/config/alpha/linux-unwind.h 2012-09-13 10:25:52.919072751 +0200 @@ -49,7 +49,7 @@ else if (pc[1] == 0x201f015f) /* lda $0,NR_rt_sigreturn */ { struct rt_sigframe { - struct siginfo info; + siginfo_t info; struct ucontext uc; } *rt_ = context->cfa; sc = &rt_->uc.uc_mcontext; diff -urN gcc-linaro-4.6-2012.02/gcc/config/bfin/linux-unwind.h gcc-linaro-4.6-2012.02.new/gcc/config/bfin/linux-unwind.h --- gcc-linaro-4.6-2012.02/gcc/config/bfin/linux-unwind.h 2012-02-07 11:33:31.000000000 +0100 +++ gcc-linaro-4.6-2012.02.new/gcc/config/bfin/linux-unwind.h 2012-09-13 10:26:14.819073313 +0200 @@ -48,10 +48,10 @@ { struct rt_sigframe { int sig; - struct siginfo *pinfo; + siginfo_t *pinfo; void *puc; char retcode[8]; - struct siginfo info; + siginfo_t info; struct ucontext uc; } *rt_ = context->cfa; diff -urN gcc-linaro-4.6-2012.02/gcc/config/i386/linux-unwind.h gcc-linaro-4.6-2012.02.new/gcc/config/i386/linux-unwind.h --- gcc-linaro-4.6-2012.02/gcc/config/i386/linux-unwind.h 2012-02-07 11:33:31.000000000 +0100 +++ gcc-linaro-4.6-2012.02.new/gcc/config/i386/linux-unwind.h 2012-09-13 10:26:41.891074005 +0200 @@ -133,9 +133,9 @@ { struct rt_sigframe { int sig; - struct siginfo *pinfo; + siginfo_t *pinfo; void *puc; - struct siginfo info; + siginfo_t info; struct ucontext uc; } *rt_ = context->cfa; /* The void * cast is necessary to avoid an aliasing warning. diff -urN gcc-linaro-4.6-2012.02/gcc/config/ia64/linux-unwind.h gcc-linaro-4.6-2012.02.new/gcc/config/ia64/linux-unwind.h --- gcc-linaro-4.6-2012.02/gcc/config/ia64/linux-unwind.h 2012-02-07 11:33:31.000000000 +0100 +++ gcc-linaro-4.6-2012.02.new/gcc/config/ia64/linux-unwind.h 2012-09-13 10:26:59.251074450 +0200 @@ -47,7 +47,7 @@ struct sigframe { char scratch[16]; unsigned long sig_number; - struct siginfo *info; + siginfo_t *info; struct sigcontext *sc; } *frame_ = (struct sigframe *)context->psp; struct sigcontext *sc = frame_->sc; @@ -137,7 +137,7 @@ struct sigframe { char scratch[16]; unsigned long sig_number; - struct siginfo *info; + siginfo_t *info; struct sigcontext *sc; } *frame = (struct sigframe *)context->psp; struct sigcontext *sc = frame->sc; diff -urN gcc-linaro-4.6-2012.02/gcc/config/mips/linux-unwind.h gcc-linaro-4.6-2012.02.new/gcc/config/mips/linux-unwind.h --- gcc-linaro-4.6-2012.02/gcc/config/mips/linux-unwind.h 2012-02-07 11:33:31.000000000 +0100 +++ gcc-linaro-4.6-2012.02.new/gcc/config/mips/linux-unwind.h 2012-09-13 10:27:17.947074929 +0200 @@ -75,7 +75,7 @@ struct rt_sigframe { u_int32_t ass[4]; /* Argument save space for o32. */ u_int32_t trampoline[2]; - struct siginfo info; + siginfo_t info; _sig_ucontext_t uc; } *rt_ = context->cfa; sc = &rt_->uc.uc_mcontext; diff -urN gcc-linaro-4.6-2012.02/gcc/config/pa/linux-unwind.h gcc-linaro-4.6-2012.02.new/gcc/config/pa/linux-unwind.h --- gcc-linaro-4.6-2012.02/gcc/config/pa/linux-unwind.h 2012-02-07 11:33:31.000000000 +0100 +++ gcc-linaro-4.6-2012.02.new/gcc/config/pa/linux-unwind.h 2012-09-13 10:27:27.491075173 +0200 @@ -63,7 +63,7 @@ int i; struct sigcontext *sc; struct rt_sigframe { - struct siginfo info; + siginfo_t info; struct ucontext uc; } *frame; diff -urN gcc-linaro-4.6-2012.02/gcc/config/sh/linux-unwind.h gcc-linaro-4.6-2012.02.new/gcc/config/sh/linux-unwind.h --- gcc-linaro-4.6-2012.02/gcc/config/sh/linux-unwind.h 2012-02-07 11:33:31.000000000 +0100 +++ gcc-linaro-4.6-2012.02.new/gcc/config/sh/linux-unwind.h 2012-09-13 10:27:58.551075969 +0200 @@ -80,9 +80,9 @@ && (*(unsigned long *) (pc+11) == 0x6ff0fff0)) { struct rt_sigframe { - struct siginfo *pinfo; + siginfo_t *pinfo; void *puc; - struct siginfo info; + siginfo_t info; struct ucontext uc; } *rt_ = context->cfa; /* The void * cast is necessary to avoid an aliasing warning. @@ -179,7 +179,7 @@ && (*(unsigned short *) (pc+14) == 0x00ad)))) { struct rt_sigframe { - struct siginfo info; + siginfo_t info; struct ucontext uc; } *rt_ = context->cfa; /* The void * cast is necessary to avoid an aliasing warning. diff -urN gcc-linaro-4.6-2012.02/gcc/config/xtensa/linux-unwind.h gcc-linaro-4.6-2012.02.new/gcc/config/xtensa/linux-unwind.h --- gcc-linaro-4.6-2012.02/gcc/config/xtensa/linux-unwind.h 2012-02-07 11:33:31.000000000 +0100 +++ gcc-linaro-4.6-2012.02.new/gcc/config/xtensa/linux-unwind.h 2012-09-13 10:28:13.827076359 +0200 @@ -62,7 +62,7 @@ struct sigcontext *sc; struct rt_sigframe { - struct siginfo info; + siginfo_t info; struct ucontext uc; } *rt_;