sys-devel/distcc/files/distcc-gentoo-multilib-r1.patch

diff -Naurp distcc-2.18.3.orig/src/distcc.c distcc-2.18.3/src/distcc.c
--- distcc-2.18.3.orig/src/distcc.c	2004-10-01 17:47:07.000000000 -0700
+++ distcc-2.18.3/src/distcc.c	2005-01-30 22:15:43.883870942 -0800
@@ -135,7 +135,106 @@ static void dcc_client_catch_signals(voi
     signal(SIGHUP, &dcc_client_signalled);
 }
 
+#define MAXNEWFLAGS 32
+#define MAXFLAGLEN  127
 
+static char **getNewArgv(char **argv, const char *newflagsStr) {
+	char **newargv;
+	char newflags[MAXNEWFLAGS][MAXFLAGLEN + 1];
+	unsigned newflagsCount = 0;
+	unsigned argc;
+	unsigned i;
+	char **p;
+
+	unsigned s, f; /* start/finish of each flag. f points to
+	                * the char AFTER the end (ie the space/\0
+	                */
+
+	/* Tokenize the flag list */
+	for(s=0; s < strlen(newflagsStr); s=f+1) {
+		/* Put s at the start of the next flag */
+		while(newflagsStr[s] == ' ' || 
+		      newflagsStr[s] == '\t')
+			s++;
+		if(s == strlen(newflagsStr))
+			break;
+
+		f = s + 1;
+		while(newflagsStr[f] != ' ' && 
+		      newflagsStr[f] != '\t' &&
+		      newflagsStr[f] != '\0')
+			f++;
+
+		/* Detect overrun */
+		if(MAXFLAGLEN < f - s || MAXNEWFLAGS == newflagsCount)
+			return NULL;
+
+		strncpy(newflags[newflagsCount], newflagsStr + s, f - s);
+		newflags[newflagsCount][f - s]='\0';
+		newflagsCount++;
+	}
+
+	/* Calculate original argc and see if it contains -m{abi,32,64} */
+	for(argc=0, p=argv; *p; p++, argc++) {
+		if(newflagsCount && (strncmp(*p, "-m32", 4) == 0 ||
+		                     strncmp(*p, "-m64", 4) == 0 ||
+		                     strncmp(*p, "-mabi", 5) == 0)) {
+			/* Our command line sets the ABI, warn the user about this and ignore 
+		     newArgs by setting newflagsCount to 0.
+			 */
+			newflagsCount = 0;
+			fprintf(stderr, "%s: %s detected on the command line overrides implicit %s added by the wrapper.\n", argv[0], *p, newflagsStr);
+		}
+	}
+
+	/* Allocate our array */
+	newargv = (char **)malloc(sizeof(char *) * (argc + newflagsCount + 1));
+
+	/* Make room for the original, new ones, and the NULL terminator */
+	if(!newargv)
+		return NULL;
+
+	/* Build argv */
+	newargv[0] = argv[0];
+
+	/* The newFlags come first since we want the environment to override them. */
+	for(i=1; i - 1 < newflagsCount; i++) {
+		newargv[i] = newflags[i - 1];
+	}
+
+	/* We just use the existing argv[i] as the start. */
+	for(; i - newflagsCount < argc; i++) {
+		newargv[i] = argv[i - newflagsCount];
+	}
+
+	/* And now cap it off... */
+	newargv[i] = NULL;
+
+	return newargv;
+}
+
+static char **getNewArgvFromEnv(char **argv) {
+	char **newargv = argv;
+
+	if(getenv("ABI")) {
+		char *envar = (char *)malloc(sizeof(char) * (strlen("CFLAGS_") + strlen(getenv("ABI")) + 1 ));
+
+		if(!envar)
+			return NULL;
+
+		/* We use CFLAGS_${ABI} for gcc, g++, g77, etc as they are
+		 * the same no matter which compiler we are using.
+		 */
+		sprintf(envar, "CFLAGS_%s", getenv("ABI"));
+
+		if(getenv(envar))
+			newargv = getNewArgv(argv, getenv(envar));
+
+		free(envar);
+	}
+
+	return newargv;
+}
 
 /**
  * distcc client entry point.
@@ -150,6 +249,7 @@ int main(int argc, char **argv)
     int status, sg_level, tweaked_path = 0;
     char **compiler_args;
     char *compiler_name;
+    char **newargv;
     int ret;
 
     dcc_client_catch_signals();
@@ -183,7 +283,12 @@ int main(int argc, char **argv)
             goto out;
         }
         
-        dcc_find_compiler(argv, &compiler_args);
+        if(!(newargv = getNewArgvFromEnv(argv))) {
+            ret = EXIT_OUT_OF_MEMORY;
+            goto out;
+        }
+        dcc_find_compiler(newargv, &compiler_args);
+        if (newargv != argv) free(newargv);
         /* compiler_args is now respectively either "cc -c hello.c" or
          * "gcc -c hello.c" */
 
@@ -200,7 +305,12 @@ int main(int argc, char **argv)
                                           &tweaked_path)) != 0)
             goto out;
         
-        dcc_copy_argv(argv, &compiler_args, 0);
+        if(!(newargv = getNewArgvFromEnv(argv))) {
+            ret = EXIT_OUT_OF_MEMORY;
+            goto out;
+        }
+        dcc_copy_argv(newargv, &compiler_args, 0);
+        if (newargv != argv) free(newargv);
         compiler_args[0] = compiler_name;
     }