diff options
Diffstat (limited to 'main.c')
| -rw-r--r-- | main.c | 212 |
1 files changed, 136 insertions, 76 deletions
@@ -240,7 +240,7 @@ static struct command_switch switches[] = { 'i', flag, (char *) &ignore_errors_flag, 1, 1, 0, 0, 0, "ignore-errors", 0, "Ignore errors from commands" }, - { 'I', string, (char *) &include_directories, 1, 0, 0, 0, 0, + { 'I', string, (char *) &include_directories, 1, 1, 0, 0, 0, "include-dir", "DIRECTORY", "Search DIRECTORY for included makefiles" }, { 'j', positive_int, (char *) &job_slots, 1, 1, 0, @@ -283,7 +283,7 @@ static struct command_switch switches[] = { 't', flag, (char *) &touch_flag, 1, 1, 1, 0, 0, "touch", 0, "Touch targets instead of remaking them" }, - { 'v', flag, (char *) &print_version_flag, 1, 0, 0, 0, 0, + { 'v', flag, (char *) &print_version_flag, 1, 1, 0, 0, 0, "version", 0, "Print the version number of make" }, { 'w', flag, (char *) &print_directory_flag, 1, 1, 0, 0, 0, @@ -1319,7 +1319,7 @@ decode_env_switches (envar, len) char *envar; unsigned int len; { - char *varref = alloca (2 + len + 2); + char *varref = (char *) alloca (2 + len + 2); char *value, *args; int argc; char **argv; @@ -1364,95 +1364,155 @@ decode_env_switches (envar, len) } /* Define the MAKEFLAGS and MFLAGS variables to reflect the settings of the - command switches. Include positive_int and floating options if PF. + command switches. Include options with args if ALL is nonzero. Don't include options with the `no_makefile' flag set if MAKEFILE. */ static void -define_makeflags (pf, makefile) - int pf, makefile; +define_makeflags (all, makefile) + int all, makefile; { register struct command_switch *cs; - char flags[200]; - register unsigned int i; + char *flagstring; + + /* We will construct a linked list of `struct flag's describing + all the flags which need to go in MAKEFLAGS. Then, once we + know how many there are and their lengths, we can put them all + together in a string. */ + + struct flag + { + struct flag *next; + int c; + char *arg; + unsigned int arglen; + }; + struct flag *flags = 0; + unsigned int flagslen = 0; +#define ADD_FLAG(ARG, LEN) \ + do { \ + struct flag *new = (struct flag *) alloca (sizeof (struct flag)); \ + new->c = cs->c; \ + new->arg = (ARG); \ + new->arglen = (LEN); \ + new->next = flags; \ + flags = new; \ + if (new->arg == 0) \ + ++flagslen; /* Just a single flag letter. */ \ + else \ + flagslen += 1 + 1 + 1 + 1 + new->arglen; /* " -x foo" */ \ + } while (0) - i = 0; for (cs = switches; cs->c != '\0'; ++cs) if (cs->toenv && (!makefile || !cs->no_makefile)) - { - if (i == 0 || flags[i - 1] == ' ') - flags[i++] = '-'; - switch (cs->type) - { - default: - abort (); + switch (cs->type) + { + default: + abort (); - case ignore: - break; + case ignore: + break; - case flag: - case flag_off: - if (!*(int *) cs->value_ptr == (cs->type == flag_off) - && (cs->default_value == 0 - || *(int *) cs->value_ptr != *(int *) cs->default_value)) - flags[i++] = cs->c; - break; + case flag: + case flag_off: + if (!*(int *) cs->value_ptr == (cs->type == flag_off) + && (cs->default_value == 0 + || *(int *) cs->value_ptr != *(int *) cs->default_value)) + ADD_FLAG (0, 0); + break; - case positive_int: - if (pf) - { - if ((cs->default_value != 0 - && (*(unsigned int *) cs->value_ptr - == *(unsigned int *) cs->default_value))) - break; - else if (cs->noarg_value != 0 - && (*(unsigned int *) cs->value_ptr == - *(unsigned int *) cs->noarg_value)) - flags[i++] = cs->c; - else - { - unsigned int value; - if (cs->c == 'j') - value = 1; - else - value = *(unsigned int *) cs->value_ptr; - sprintf (&flags[i], "%c%u ", cs->c, value); - i += strlen (&flags[i]); - } - } - break; + case positive_int: + if (all) + { + if ((cs->default_value != 0 + && (*(unsigned int *) cs->value_ptr + == *(unsigned int *) cs->default_value))) + break; + else if (cs->noarg_value != 0 + && (*(unsigned int *) cs->value_ptr == + *(unsigned int *) cs->noarg_value)) + ADD_FLAG (0, 0); + else if (cs->c == 'j') + /* Special case for `-j'. */ + ADD_FLAG ("1", 1); + else + { + char *buf = (char *) alloca (30); + sprintf (buf, "%u", *(unsigned int *) cs->value_ptr); + ADD_FLAG (buf, strlen (buf)); + } + } + break; - case floating: - if (pf) - { - if (cs->default_value != 0 - && (*(double *) cs->value_ptr - == *(double *) cs->default_value)) - break; - else if (cs->noarg_value != 0 - && (*(double *) cs->value_ptr - == *(double *) cs->noarg_value)) - flags[i++] = cs->c; - else - { - sprintf (&flags[i], "%c%f ", - cs->c, *(double *) cs->value_ptr); - i += strlen (&flags[i]); - } - } - break; - } - } + case floating: + if (all) + { + if (cs->default_value != 0 + && (*(double *) cs->value_ptr + == *(double *) cs->default_value)) + break; + else if (cs->noarg_value != 0 + && (*(double *) cs->value_ptr + == *(double *) cs->noarg_value)) + ADD_FLAG (0, 0); + else + { + char *buf = (char *) alloca (100); + sprintf (buf, "%f", *(double *) cs->value_ptr); + ADD_FLAG (buf, strlen (buf)); + } + } + break; + + case string: + if (all) + { + struct stringlist *sl = *(struct stringlist **) cs->value_ptr; + register unsigned int i; + if (sl != 0) + for (i = 0; i < sl->idx; ++i) + ADD_FLAG (sl->list[i], strlen (sl->list[i])); + } + break; + } - if (i == 0) - flags[0] = flags[1] = '\0'; - else if (flags[i - 1] == ' ' || flags[i - 1] == '-') - flags[i - 1] = '\0'; - flags[i] = '\0'; +#undef ADD_FLAG + + if (flags == 0) + /* No flags. Use a string of two nulls so [1] works below. */ + flagstring = "\0"; + else + { + /* Construct the value in FLAGSTRING. + We allocate enough space for a preceding dash and trailing null. */ + register char *p; + flagstring = (char *) alloca (1 + flagslen + 1); + p = flagstring; + *p++ = '-'; + do + { + /* Add the flag letter to the string. */ + *p++ = flags->c; + if (flags->arg != 0) + { + /* Add its argument too. */ + *p++ = ' '; + bcopy (flags->arg, p, flags->arglen); + p += flags->arglen; + /* Write a following space and dash, for the next flag. */ + *p++ = ' '; + *p++ = '-'; + } + flags = flags->next; + } while (flags != 0); + + /* Kill the final space and dash. */ + p[-2] = '\0'; + } /* On Sun, the value of MFLAGS starts with a `-' but the value of MAKEFLAGS lacks the `-'. Be compatible. */ - (void) define_variable ("MAKEFLAGS", 9, &flags[1], o_env, 0); - (void) define_variable ("MFLAGS", 6, flags, o_env, 0); + (void) define_variable ("MAKEFLAGS", 9, &flagstring[1], o_env, 0); + (void) define_variable ("MFLAGS", 6, flagstring, o_env, 0); } /* Print version information. */ |