nixpkgs/pkgs/development/interpreters/guile/gcov-file-name.patch

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This patch arranges so that we don't end up, with profiling builds, with a
file named `<stdout>.gcov' since that confuses lcov:
<stdout>:cannot open source file
geninfo: ERROR: cannot read <stdout>.gcov!
--- guile/libguile/c-tokenize.c 2009-09-13 13:05:15.000000000 +0200
+++ guile/libguile/c-tokenize.c 2009-10-28 16:24:15.000000000 +0100
@@ -1,5 +1,5 @@
-#line 3 "<stdout>"
+#line 3 "c-tokenize.c"
#define YY_INT_ALIGNED short int
@@ -616,7 +616,7 @@ int cookie_was_last = 0;
#define IS_COOKIE cookie_was_last = 1
#define IS_NOT_COOKIE cookie_was_last = 0
-#line 620 "<stdout>"
+#line 620 "c-tokenize.c"
#define INITIAL 0
@@ -799,7 +799,7 @@ YY_DECL
#line 65 "./c-tokenize.lex"
-#line 803 "<stdout>"
+#line 803 "c-tokenize.c"
if ( !(yy_init) )
{
@@ -1235,7 +1235,7 @@ YY_RULE_SETUP
#line 181 "./c-tokenize.lex"
ECHO;
YY_BREAK
-#line 1239 "<stdout>"
+#line 1239 "c-tokenize.c"
case YY_STATE_EOF(INITIAL):
yyterminate();