Hi all,
I'm facing a compilation error while building GCC 7.2.0 libgo with
uClibc-ng 1.0.26 with this error:
runtime_sysinfo.go:418:17: error: use of undefined type
‘___uclibc_locale_struct’
Here is the relevant build output:
https://pastebin.com/B7urxS2m
The problematic runtime_sysinfo.go is created using -fdump-go-spec: it's
used to automatically generate Go declarations from C code (see
https://golang.org/doc/install/gccgo#Automatic_generation_of_Go_declaration…).
The generated gen-sysinfo.go is indeed missing ___uclibc_locale_struct
declaration.
Looks like -fdump-go-spec generates types only from typedef declarations,
ignoring structs, like "struct __uclibc_locale_struct;" in uClibc_locale.h.
This simple change allows to build libgo fine:
--- uClibc_locale.h.orig 2017-09-25 19:49:38.000000000 +0000
+++ uClibc_locale.h 2017-09-28 07:27:14.035517712 +0000
@@ -73,6 +73,7 @@
*/
struct __uclibc_locale_struct;
+typedef struct __uclibc_locale_struct __uclibc_locale_struct;
typedef struct __uclibc_locale_struct *__locale_t;
#endif /* !defined(__LOCALE_C_ONLY) */
Does this change look sane? Or should I patch GCC libgo/sysinfo.c instead
to add "typedef struct __uclibc_locale_struct __uclibc_locale_struct;"
there?
Thanks,
Alex