[hackers] [scc] [cc1] use dynamic storage for U flags || Quentin Rameau

[git]

commit 8dd36e66c2d29394875ef9a977cfd20195b21aea
Author:     Quentin Rameau <quinq@fifth.space>
AuthorDate: Thu Jun 16 16:18:57 2016 +0200
Commit:     Quentin Rameau <quinq@fifth.space>
CommitDate: Fri Jun 17 21:41:10 2016 +0200

    [cc1] use dynamic storage for U flags

diff --git a/cc1/main.c b/cc1/main.c
index 91974a9..d7fa487 100644
--- a/cc1/main.c
+++ b/cc1/main.c
@@ -16,6 +16,7 @@ int warnings;
 jmp_buf recover;
 
 static char *base, *output;
+static struct items uflags;
 int onlycpp;
 
 extern int failure;
@@ -41,7 +42,7 @@ int
 main(int argc, char *argv[])
 {
        char *base;
-       static char *uvec[NR_USWITCHES], **umacro = uvec;
+       int i;
 
        atexit(clean);
        icpp();
@@ -63,9 +64,7 @@ main(int argc, char *argv[])
                incdir(EARGF(usage()));
                break;
        case 'U':
-               if (umacro == &uvec[NR_USWITCHES])
-                       die("too many -U switches");
-               *umacro++ = EARGF(usage());
+               uflags.s = newitem(uflags.s, uflags.n++, EARGF(usage()));
                break;
        case 'd':
                DBGON();
@@ -89,8 +88,8 @@ main(int argc, char *argv[])
        if (!strcmp(base, "cpp"))
                onlycpp = 1;
 
-       for (umacro = uvec; *umacro; umacro++)
-               undefmacro(*umacro);
+       for (i = 0; i < uflags.n; ++i)
+               undefmacro(uflags.s[i]);
 
        ilex(*argv);
        if (onlycpp) {