43 lines
1.5 KiB
Diff
43 lines
1.5 KiB
Diff
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Add support for external spec file via the GCC_SPECS env var. This
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allows us to easily control pie/ssp defaults with gcc-config profiles.
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Original patch by Rob Holland
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Extended to support multiple entries separated by ':' by Kevin F. Quinn
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Modified to use getenv instead of poisoned GET_ENVIRONMENT by Ryan Hill
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--- gcc-4/gcc/gcc.c
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+++ gcc-4/gcc/gcc.c
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@@ -6482,6 +6482,32 @@
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/* Process any user specified specs in the order given on the command
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line. */
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+#if !(defined (__MSDOS__) || defined (OS2) || defined (VMS) || defined (WIN32))
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+ /* Add specs listed in GCC_SPECS. Note; in the process of separating
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+ * each spec listed, the string is overwritten at token boundaries
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+ * (':') with '\0', an effect of strtok_r().
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+ */
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+ specs_file = getenv ("GCC_SPECS");
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+ if (specs_file && (strlen(specs_file) > 0))
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+ {
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+ char *spec, *saveptr;
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+ for (spec=strtok_r(specs_file,":",&saveptr);
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+ spec!=NULL;
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+ spec=strtok_r(NULL,":",&saveptr))
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+ {
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+ struct user_specs *user = (struct user_specs *)
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+ xmalloc (sizeof (struct user_specs));
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+
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+ user->next = (struct user_specs *) 0;
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+ user->filename = spec;
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+ if (user_specs_tail)
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+ user_specs_tail->next = user;
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+ else
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+ user_specs_head = user;
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+ user_specs_tail = user;
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+ }
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+ }
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+#endif
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for (uptr = user_specs_head; uptr; uptr = uptr->next)
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{
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char *filename = find_a_file (&startfile_prefixes, uptr->filename,
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