build system: check for ENABLE_, USE_ and SKIP_ (not only for CONFIG_)
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@ -2,6 +2,9 @@
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* which depend on other symbols, which themself are off.
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* Provide them here by hand. Need a better idea. */
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/* This is especially bad because it forces rebuild of
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* everything whenever any of these options change */
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#ifndef ENABLE_FEATURE_GUNZIP_UNCOMPRESS
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#define ENABLE_FEATURE_GUNZIP_UNCOMPRESS 0
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#define USE_FEATURE_GUNZIP_UNCOMPRESS(...)
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@ -114,10 +114,12 @@
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#include <ctype.h>
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#include <arpa/inet.h>
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/* bbox: not needed
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#define INT_CONF ntohl(0x434f4e46)
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#define INT_ONFI ntohl(0x4f4e4649)
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#define INT_NFIG ntohl(0x4e464947)
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#define INT_FIG_ ntohl(0x4649475f)
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*/
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char *target;
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char *depfile;
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@ -222,30 +224,32 @@ void use_config(char *m, int slen)
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void parse_config_file(char *map, size_t len)
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{
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int *end = (int *) (map + len);
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/* start at +1, so that p can never be < map */
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int *m = (int *) map + 1;
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char *p, *q;
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/* modified for bbox */
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char *end = map + len;
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char *p = map;
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char *q;
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int off;
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for (; m < end; m++) {
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if (*m == INT_CONF) { p = (char *) m ; goto conf; }
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if (*m == INT_ONFI) { p = (char *) m-1; goto conf; }
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if (*m == INT_NFIG) { p = (char *) m-2; goto conf; }
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if (*m == INT_FIG_) { p = (char *) m-3; goto conf; }
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for (; p < end; p++) {
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if (!memcmp(p, "CONFIG_", 7)) goto conf7;
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if (!memcmp(p, "ENABLE_", 7)) goto conf7;
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if (!memcmp(p, "USE_", 4)) goto conf4;
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if (!memcmp(p, "SKIP_", 5)) goto conf5;
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continue;
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conf4: off = 4; goto conf;
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conf5: off = 5; goto conf;
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conf7: off = 7;
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conf:
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if (p > map + len - 7)
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if (p > map + len - off)
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continue;
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if (memcmp(p, "CONFIG_", 7))
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continue;
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for (q = p + 7; q < map + len; q++) {
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for (q = p + off; q < map + len; q++) {
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if (!(isalnum(*q) || *q == '_'))
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goto found;
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}
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continue;
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found:
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use_config(p+7, q-p-7);
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use_config(p+off, q-p-off);
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}
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}
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@ -366,6 +370,7 @@ void print_deps(void)
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void traps(void)
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{
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/* bbox: not needed
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static char test[] __attribute__((aligned(sizeof(int)))) = "CONF";
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if (*(int *)test != INT_CONF) {
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@ -373,6 +378,7 @@ void traps(void)
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*(int *)test);
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exit(2);
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}
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*/
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}
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int main(int argc, char *argv[])
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