···

       
1
       
1
       
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Hacky work-around for highly parallel builds.

     

       
2
       
2
       
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57125

     

       
3
       
3
       
-
       


     

       
4
       
4
       
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diff --git a/gcc/Makefile.in b/gcc/Makefile.in

     

       
5
       
5
       
-
       
index aad927c..182f666 100644

     

       
6
       
6
       
-
       
--- a/gcc/Makefile.in

     

       
7
       
7
       
-
       
+++ b/gcc/Makefile.in

     

       
8
       
8
       
-
       
@@ -3908,21 +3908,21 @@ build/gengtype-lex.o: $(BCONFIG_H)

     

       
9
       
9
       
-
       
 

     

       
10
       
10
       
-
       
 gengtype-parse.o build/gengtype-parse.o : gengtype-parse.c gengtype.h \

     

       
11
       
11
       
-
       
   $(SYSTEM_H)

     

       
12
       
12
       
-
       
-gengtype-parse.o: $(CONFIG_H)

     

       
13
       
13
       
-
       
+gengtype-parse.o: $(CONFIG_H) $(BCONFIG_H)

     

       
14
       
14
       
-
       
 CFLAGS-gengtype-parse.o += -DGENERATOR_FILE

     

       
15
       
15
       
-
       
 build/gengtype-parse.o: $(BCONFIG_H)

     

       
16
       
16
       
-
       
 

     

       
17
       
17
       
-
       
 gengtype-state.o build/gengtype-state.o: gengtype-state.c $(SYSTEM_H) \

     

       
18
       
18
       
-
       
   gengtype.h errors.h double-int.h version.h $(HASHTAB_H) $(OBSTACK_H) \

     

       
19
       
19
       
-
       
   $(XREGEX_H)

     

       
20
       
20
       
-
       
-gengtype-state.o: $(CONFIG_H)

     

       
21
       
21
       
-
       
+gengtype-state.o: $(CONFIG_H) $(BCONFIG_H)

     

       
22
       
22
       
-
       
 CFLAGS-gengtype-state.o += -DGENERATOR_FILE

     

       
23
       
23
       
-
       
 build/gengtype-state.o: $(BCONFIG_H)

     

       
24
       
24
       
-
       
 

     

       
25
       
25
       
-
       
 gengtype.o build/gengtype.o : gengtype.c $(SYSTEM_H) gengtype.h 	\

     

       
26
       
26
       
-
       
   rtl.def insn-notes.def errors.h double-int.h version.h $(HASHTAB_H) \

     

       
27
       
27
       
-
       
   $(OBSTACK_H) $(XREGEX_H)

     

       
28
       
28
       
-
       
-gengtype.o: $(CONFIG_H)

     

       
29
       
29
       
-
       
+gengtype.o: $(CONFIG_H) $(BCONFIG_H)

     

       
30
       
30
       
-
       
 CFLAGS-gengtype.o += -DGENERATOR_FILE

     

       
31
       
31
       
-
       
 build/gengtype.o: $(BCONFIG_H)

     

       
32
       
32
       
-
       
 

     

···

       
1
       
1
       
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https://gcc.gnu.org/ml/gcc-patches/2015-06/msg02210.html

     

       
2
       
2
       
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3
       
3
       
-
       
diff --git a/libcpp/macro.c b/libcpp/macro.c

     

       
4
       
4
       
-
       
index 1e0a0b5..a52e3cb 100644

     

       
5
       
5
       
-
       
--- a/libcpp/macro.c

     

       
6
       
6
       
-
       
+++ b/libcpp/macro.c

     

       
7
       
7
       
-
       
@@ -349,14 +349,38 @@ _cpp_builtin_macro_text (cpp_reader *pfile, cpp_hashnode *node)

     

       
8
       
8
       
-
       
 	     slow on some systems.  */

     

       
9
       
9
       
-
       
 	  time_t tt;

     

       
10
       
10
       
-
       
 	  struct tm *tb = NULL;

     

       
11
       
11
       
-
       
+	  char *source_date_epoch;

     

       
12
       
12
       
-
       
 

     

       
13
       
13
       
-
       
-	  /* (time_t) -1 is a legitimate value for "number of seconds

     

       
14
       
14
       
-
       
-	     since the Epoch", so we have to do a little dance to

     

       
15
       
15
       
-
       
-	     distinguish that from a genuine error.  */

     

       
16
       
16
       
-
       
-	  errno = 0;

     

       
17
       
17
       
-
       
-	  tt = time(NULL);

     

       
18
       
18
       
-
       
-	  if (tt != (time_t)-1 || errno == 0)

     

       
19
       
19
       
-
       
-	    tb = localtime (&tt);

     

       
20
       
20
       
-
       
+	  /* Allow the date and time to be set externally by an exported

     

       
21
       
21
       
-
       
+	     environment variable to enable reproducible builds. */

     

       
22
       
22
       
-
       
+	  source_date_epoch = getenv ("SOURCE_DATE_EPOCH");

     

       
23
       
23
       
-
       
+	  if (source_date_epoch)

     

       
24
       
24
       
-
       
+	    {

     

       
25
       
25
       
-
       
+	      errno = 0;

     

       
26
       
26
       
-
       
+	      tt = (time_t) strtol (source_date_epoch, NULL, 10);

     

       
27
       
27
       
-
       
+	      if (errno == 0)

     

       
28
       
28
       
-
       
+	        {

     

       
29
       
29
       
-
       
+		  tb = gmtime (&tt);

     

       
30
       
30
       
-
       
+		  if (tb == NULL)

     

       
31
       
31
       
-
       
+		    cpp_error (pfile, CPP_DL_ERROR,

     

       
32
       
32
       
-
       
+			       "SOURCE_DATE_EPOCH=\"%s\" is not a valid date",

     

       
33
       
33
       
-
       
+			       source_date_epoch);

     

       
34
       
34
       
-
       
+	        }

     

       
35
       
35
       
-
       
+	      else

     

       
36
       
36
       
-
       
+		cpp_error (pfile, CPP_DL_ERROR,

     

       
37
       
37
       
-
       
+			   "SOURCE_DATE_EPOCH=\"%s\" is not a valid number",

     

       
38
       
38
       
-
       
+			   source_date_epoch);

     

       
39
       
39
       
-
       
+	    }

     

       
40
       
40
       
-
       
+	  else

     

       
41
       
41
       
-
       
+	    {

     

       
42
       
42
       
-
       
+	    /* (time_t) -1 is a legitimate value for "number of seconds

     

       
43
       
43
       
-
       
+	       since the Epoch", so we have to do a little dance to

     

       
44
       
44
       
-
       
+	       distinguish that from a genuine error.  */

     

       
45
       
45
       
-
       
+	    errno = 0;

     

       
46
       
46
       
-
       
+	    tt = time(NULL);

     

       
47
       
47
       
-
       
+	    if (tt != (time_t)-1 || errno == 0)

     

       
48
       
48
       
-
       
+	      tb = localtime (&tt);

     

       
49
       
49
       
-
       
+	  }

     

       
50
       
50
       
-
       
 

     

       
51
       
51
       
-
       
 	  if (tb)

     

       
52
       
52
       
-
       
 	    {