The build_data.c is dynamically generated by configure, sometimes the
data may not be synchronized to the file build_data.c, as a result,
it will break the compilation process with the following error:
$ for i in {1..50} ; do make clean ; rm -rf gdb-10.2/ ; make warn ;\
[ $? -ne 0 ] && echo "TRY $i" && break ; done
...
ar: creating crashlib.a
CXXLD gdb
/usr/bin/ld: ../../crashlib.a(main.o): in function `dump_build_data':
/home/crash/main.c:1829: undefined reference to `build_command'
/usr/bin/ld: /home/crash/main.c:1830: undefined reference to `build_data'
collect2: error: ld returned 1 exit status
make[4]: *** [Makefile:1872: gdb] Error 1
make[3]: *** [Makefile:10072: all-gdb] Error 2
make[2]: *** [Makefile:860: all] Error 2
crash build failed
The fflush() will help flush the data into the build_data.c.
Signed-off-by: Lianbo Jiang <lijiang@xxxxxxxxxx>
Signed-off-by: Kazuhito Hagio <k-hagio-ab@xxxxxxx>
---
configure.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/configure.c b/configure.c
index 51888519c18c..41d096bc56ca 100644
--- a/configure.c
+++ b/configure.c
@@ -1337,6 +1337,7 @@ make_build_data(char *target)
pclose(fp1);
pclose(fp2);
pclose(fp3);
+ fflush(fp4);
fclose(fp4);
}
--
2.20.1
--
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