https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64604
--- Comment #1 from Markus Trippelsdorf <trippels at gcc dot gnu.org> --- Turned out that an awk script doesn't handle the new preprocessor comments: markus@x4 Src % cat sigtmp.c #include <signal.h> XXNAMES XXSIGHUP SIGHUP XXNAMES XXSIGINT SIGINT XXNAMES XXSIGQUIT SIGQUIT XXNAMES XXSIGILL SIGILL XXNAMES XXSIGTRAP SIGTRAP XXNAMES XXSIGABRT SIGABRT XXNAMES XXSIGIOT SIGIOT XXNAMES XXSIGBUS SIGBUS XXNAMES XXSIGFPE SIGFPE XXNAMES XXSIGKILL SIGKILL XXNAMES XXSIGUSR1 SIGUSR1 XXNAMES XXSIGSEGV SIGSEGV XXNAMES XXSIGUSR2 SIGUSR2 XXNAMES XXSIGPIPE SIGPIPE XXNAMES XXSIGALRM SIGALRM XXNAMES XXSIGTERM SIGTERM XXNAMES XXSIGSTKFLT SIGSTKFLT XXNAMES XXSIGCLD SIGCLD XXNAMES XXSIGCHLD SIGCHLD XXNAMES XXSIGCONT SIGCONT XXNAMES XXSIGSTOP SIGSTOP XXNAMES XXSIGTSTP SIGTSTP XXNAMES XXSIGTTIN SIGTTIN XXNAMES XXSIGTTOU SIGTTOU XXNAMES XXSIGURG SIGURG XXNAMES XXSIGXCPU SIGXCPU XXNAMES XXSIGXFSZ SIGXFSZ XXNAMES XXSIGVTALRM SIGVTALRM XXNAMES XXSIGPROF SIGPROF XXNAMES XXSIGWINCH SIGWINCH XXNAMES XXSIGPOLL SIGPOLL XXNAMES XXSIGIO SIGIO XXNAMES XXSIGPWR SIGPWR XXNAMES XXSIGSYS SIGSYS XXNAMES XXSIGUNUSED SIGUNUSED XXNAMES XXSIGRTMIN _SIGRTMIN markus@x4 Src % gcc-4.9 -E sigtmp.c >|sigtmp.out markus@x4 Src % gcc-5 -E sigtmp.c >|sigtmp_.out markus@x4 Src % diff -u sigtmp.out sigtmp_.out --- sigtmp.out 2015-01-15 09:09:41.899667049 +0100 +++ sigtmp_.out 2015-01-15 09:09:45.209590084 +0100 @@ -25,6 +25,8 @@ # 1 "/usr/include/bits/sigset.h" 1 3 4 # 22 "/usr/include/bits/sigset.h" 3 4 + +# 22 "/usr/include/bits/sigset.h" 3 4 typedef int __sig_atomic_t; @@ -741,8 +743,8 @@ -# 1 "/usr/lib/gcc/x86_64-pc-linux-gnu/4.9.2/include/stddef.h" 1 3 4 -# 212 "/usr/lib/gcc/x86_64-pc-linux-gnu/4.9.2/include/stddef.h" 3 4 +# 1 "/usr/lib/gcc/x86_64-pc-linux-gnu/5.0.0/include/stddef.h" 1 3 4 +# 216 "/usr/lib/gcc/x86_64-pc-linux-gnu/5.0.0/include/stddef.h" 3 4 typedef long unsigned int size_t; # 343 "/usr/include/signal.h" 2 3 4 @@ -1031,39 +1033,181 @@ # 2 "sigtmp.c" 2 -XXNAMES XXSIGHUP 1 -XXNAMES XXSIGINT 2 -XXNAMES XXSIGQUIT 3 -XXNAMES XXSIGILL 4 -XXNAMES XXSIGTRAP 5 -XXNAMES XXSIGABRT 6 -XXNAMES XXSIGIOT 6 -XXNAMES XXSIGBUS 7 -XXNAMES XXSIGFPE 8 -XXNAMES XXSIGKILL 9 -XXNAMES XXSIGUSR1 10 -XXNAMES XXSIGSEGV 11 -XXNAMES XXSIGUSR2 12 -XXNAMES XXSIGPIPE 13 -XXNAMES XXSIGALRM 14 -XXNAMES XXSIGTERM 15 -XXNAMES XXSIGSTKFLT 16 -XXNAMES XXSIGCLD 17 -XXNAMES XXSIGCHLD 17 -XXNAMES XXSIGCONT 18 -XXNAMES XXSIGSTOP 19 -XXNAMES XXSIGTSTP 20 -XXNAMES XXSIGTTIN 21 -XXNAMES XXSIGTTOU 22 -XXNAMES XXSIGURG 23 -XXNAMES XXSIGXCPU 24 -XXNAMES XXSIGXFSZ 25 -XXNAMES XXSIGVTALRM 26 -XXNAMES XXSIGPROF 27 -XXNAMES XXSIGWINCH 28 -XXNAMES XXSIGPOLL 29 -XXNAMES XXSIGIO 29 -XXNAMES XXSIGPWR 30 -XXNAMES XXSIGSYS 31 -XXNAMES XXSIGUNUSED 31 + +# 3 "sigtmp.c" +XXNAMES XXSIGHUP +# 3 "sigtmp.c" 3 4 + 1 + +# 4 "sigtmp.c" +XXNAMES XXSIGINT +# 4 "sigtmp.c" 3 4 + 2 ... And then the awk scrip generates a bogus signames.c file: % gawk -f ./signames2.awk sigtmp.out >| signames.c
