gcc-15.1.0

[Xi Ruoyao]

New major version.

[Xi Ruoyao]

m4 FTBFS: ​https://savannah.gnu.org/support/?111150

Workaround: sed 's/\[\[__nodiscard__]]//' -i lib/config.hin

And hopefully a new release will be made soon: ​https://git.savannah.gnu.org/cgit/m4.git/commit/?h=branch-1.4&id=64d7891fe81e0020a28400f2dc6be9cd754be4ae

[Xi Ruoyao]

ncurses FTBFS: ​https://lists.gnu.org/archive/html/bug-ncurses/2024-11/msg00011.html

I used the latest snapshot at ​https://invisible-mirror.net/archives/ncurses/current/ncurses-6.5-20250419.tgz and it seems fine in chapter 6.

[Xi Ruoyao]

bash FTBFS. The latest rc ​https://git.savannah.gnu.org/cgit/bash.git/snapshot/bash-bash-5.3-rc1.tar.gz works.

3 fails in a row, really "wonderful."

[Xi Ruoyao]

Other chapter 6/7 packages are fine.

[Douglas R. Reno]

This update is going to be quite messy in BLFS too. I've seen dozens of fixes over there in recent package updates for GCC 15, and there's some stuff in the kernel pending merge as well for fixing compilation with GCC 15.

[Joe Locash]

For expect and cpio in chapter 8, I used CFLAGS+="$CFLAGS -std=gnu17" to get them to build. I also needed to update to readline-8.3-rc1 ​https://ftp.gnu.org/gnu/readline/readline-8.3-rc1.tar.gz for bash-5.3-rc1.

[Xi Ruoyao]

There's no cpio in chapter 8.

[Xi Ruoyao]

Another annoying thing is ​https://git.savannah.gnu.org/ is currently extremely unstable, making it very difficult to locate upstream fixes...

[Xi Ruoyao]

For m4 another sed is needed to exclude a problematic test:

sed 's/test-stdalign\$(EXEEXT) //' -i tests/Makefile.in

The upstream fix for this test is at ​https://git.savannah.gnu.org/cgit/gnulib.git/commit/?id=b22b1e425f530eeb16d2e1313c292fc61e991b08 (I hope you don't get a HTTP Bad Gateway accessing it...) but I don't want to carry such a big patch just as a temporary (considering 1.4.20 will be likely released soon) solution. Also note the fix has been in gnulib 3 years ago...

[Xi Ruoyao]

For bc we should just use CC='gcc -std=c99' instead of CC=gcc. The reason is the default value of CC is just "c99" which is a script running "gcc -std=c99" on many other distros.

[Xi Ruoyao]

For expect:

expect5.45.4

@@ -1735 +1735 @@
 int exp_loguser = TRUE;         /* if TRUE, user sees interactions on stdout */
 
 
-char *exp_printify();
+char *exp_printify(char *);
 int exp_getptymaster();
-int exp_getptyslave();
+int exp_getptyslave(int, int, CONST char *);
 
 #define sysreturn(x)    return(errno = x, -1)
 

exp_command.h

@@ -222 +222 @@
 
 EXTERN void             exp_strftime(char *format, const struct tm *timeptr,Tcl_DString *dstring);
 
-#define exp_deleteProc (void (*)())0
-#define exp_deleteObjProc (void (*)())0
+#define exp_deleteProc NULL
+#define exp_deleteObjProc NULL
 
 EXTERN int expect_key;
 EXTERN int exp_configure_count; /* # of times descriptors have been closed */
@@ -321 +321 @@
 EXTERN void             exp_init_most_cmds _ANSI_ARGS_((Tcl_Interp *));
 EXTERN void             exp_init_trap_cmds _ANSI_ARGS_((Tcl_Interp *));
 EXTERN void             exp_init_interact_cmds _ANSI_ARGS_((Tcl_Interp *));
-EXTERN void             exp_init_tty_cmds();
+EXTERN void             exp_init_tty_cmds _ANSI_ARGS_((Tcl_Interp *));
 
 EXTERN ExpState *       expStateCheck _ANSI_ARGS_((Tcl_Interp *,ExpState *,int,int,char *));
 EXTERN ExpState *       expStateCurrent _ANSI_ARGS_((Tcl_Interp *,int,int,int));

exp_main_sub.c

@@ -49 +49 @@
 #define NEED_TCL_MINOR          5
 
 char *exp_argv0 = "this program";       /* default program name */
-void (*exp_app_exit)() = 0;
-void (*exp_event_exit)() = 0;
+void (*exp_app_exit) _ANSI_ARGS_((Tcl_Interp *)) = 0;
+void (*exp_event_exit) _ANSI_ARGS_((Tcl_Interp *)) = 0;
 FILE *exp_cmdfile = 0;
 char *exp_cmdfilename = 0;
 int exp_cmdlinecmds = FALSE;
@@ -921 +921 @@
             char file[200];
             char *home;
             int fd;
-            char *getenv();
 
             if ((NULL != (home = getenv("DOTDIR"))) ||
                 (NULL != (home = getenv("HOME")))) {

expect5.45.4

@@ -134 +134 @@
         return(cc);
 }
 
-static RETSIGTYPE (*oldAlarmHandler)();
-static RETSIGTYPE (*oldHupHandler)();
+static RETSIGTYPE (*oldAlarmHandler)(int);
+static RETSIGTYPE (*oldHupHandler)(int);
 static time_t current_time;     /* time when testing began */
 
 /* if TRUE, begin testing, else end testing */

expect5.45.4

@@ -53 +53 @@
 
 int sigchld_count = 0;  /* # of sigchlds caught but not yet processed */
 
-static int eval_trap_action();
+static int
+eval_trap_action(Tcl_Interp *, int, struct trap *, int);
 
 static int got_sig;             /* this records the last signal received */
                                 /* it is only a hint and can be wiped out */

expect5.45.4

@@ -572 +572 @@
     char **argv)
 {
         int result = TCL_OK;
-        RETSIGTYPE (*old)();    /* save old sigalarm handler */
+        RETSIGTYPE (*old)(int); /* save old sigalarm handler */
 #define MAX_ARGLIST 10240
         int i;
 

expect5.45.4

@@ -8 +8 @@
 
 #include <tcl.h> /* For _ANSI_ARGS_ */
 
-int exp_window_size_set();
-int exp_window_size_get();
+int exp_window_size_set _ANSI_ARGS_ ((int));
+int exp_window_size_get _ANSI_ARGS_ ((int));
 
 void  exp_win_rows_set    _ANSI_ARGS_ ((char* rows));
 char* exp_win_rows_get    _ANSI_ARGS_ ((void));

pty_termios.c

@@ -206 +206 @@
 {
 #define MAX_ARGLIST 10240
         char buf[MAX_ARGLIST];  /* overkill is easier */
-        RETSIGTYPE (*old)();    /* save old sigalarm handler */
+        RETSIGTYPE (*old)(int); /* save old sigalarm handler */
         int pid;
         
         old = signal(SIGCHLD, SIG_DFL);
@@ -266 +266 @@
 {
 #define MAX_ARGLIST 10240
         char buf[MAX_ARGLIST];  /* overkill is easier */
-        RETSIGTYPE (*old)();    /* save old sigalarm handler */
+        RETSIGTYPE (*old)(int); /* save old sigalarm handler */
 
 #ifdef STTY_READS_STDOUT
         sprintf(buf,"%s %s > %s",STTY_BIN,s,name);

​https://www.linuxfromscratch.org/patches/downloads/expect/expect-5.45.4-gcc15-1.patch (including the changes from -gcc14-1.patch).

[Xi Ruoyao]

gmp: sed '/long long t1;/,+1s/()/(...)/' -i configure

It's a simplified (only works with C23) form of the upstream fix ​https://gmplib.org/repo/gmp/rev/8e7bb4ae7a18.

[Xi Ruoyao]

gcc.target/i386/pr90579.c fails: ​https://gcc.gnu.org/PR118885

The two sed

sed -e 's/no-pic /&-no-pie /'     -i ../gcc/testsuite/gcc.target/i386/pr113689-1.c
sed -e 's/{ target nonpic } //' \
    -e '/GOTPCREL/d'              -i ../gcc/testsuite/gcc.target/i386/fentryname3.c

are no longer needed.

[Xi Ruoyao]

Replying to Joe Locash:

I also needed to update to readline-8.3-rc1 ​https://ftp.gnu.org/gnu/readline/readline-8.3-rc1.tar.gz for bash-5.3-rc1.

Confirmed. And for bash-5.3-rc1 there's a better download link than mine (mine has a stupid file name): ​https://ftp.gnu.org/gnu/bash/bash-5.3-rc1.tar.gz.

[Joe Locash]

Replying to Xi Ruoyao:

There's no cpio in chapter 8.

My bad. I forgot I moved cpio to LFS because it's hard to create an initrd without it and cpio doesn't have any dependencies.

[Xi Ruoyao]

For BLFS: ​wiki/gcc15-todo

[Joe Locash]

Replying to Xi Ruoyao:

For BLFS: ​wiki/gcc15-todo

Could a ticket be created for tracking BLFS issues related to gcc15? I have a bunch of fixes I can submit.

[Bruce Dubbs]

Replying to Joe Locash:

Could a ticket be created for tracking BLFS issues related to gcc15? I have a bunch of fixes I can submit.

You should have permissions to do that.