It would be used also in followup changes.
---
mingw-w64-crt/Makefile.am | 1 +
mingw-w64-crt/crt/crtdll_compat.c | 6 ------
mingw-w64-crt/stdio/mingw_dummy__lock.c | 12 ++++++++++++
3 files changed, 13 insertions(+), 6 deletions(-)
create mode 100644 mingw-w64-crt/stdio/mingw_dummy__lock.c
diff --git a/mingw-w64-crt/Makefile.am b/mingw-w64-crt/Makefile.am
index bf9b4bc22316..5bb2c6477170 100644
--- a/mingw-w64-crt/Makefile.am
+++ b/mingw-w64-crt/Makefile.am
@@ -433,6 +433,7 @@ src_crtdll=\
misc/seterrno.c \
stdio/_scprintf.c \
stdio/_vscprintf.c \
+ stdio/mingw_dummy__lock.c \
stdio/mingw_lock.c
src_msvcr120_app=\
diff --git a/mingw-w64-crt/crt/crtdll_compat.c
b/mingw-w64-crt/crt/crtdll_compat.c
index 35686658c3ff..39cc30023ecc 100644
--- a/mingw-w64-crt/crt/crtdll_compat.c
+++ b/mingw-w64-crt/crt/crtdll_compat.c
@@ -11,12 +11,6 @@
#undef __setusermatherr
void __setusermatherr(__UNUSED_PARAM(int (__cdecl *f)(struct _exception *))) {
}
-/* Define dummy _lock() and _unlock() functions as crtdll.dll does not provide
them */
-void __cdecl _lock(int locknum);
-void __cdecl _unlock(int locknum);
-void __cdecl _lock(__UNUSED_PARAM(int locknum)) { }
-void __cdecl _unlock(__UNUSED_PARAM(int locknum)) { }
-
/* Define __getmainargs() function via crtdll.dll __GetMainArgs() function */
extern void __GetMainArgs(int *argc, char ***argv, char ***envp, int
expand_wildcards);
int __cdecl __getmainargs(int *argc, char ***argv, char ***envp, int
expand_wildcards, __UNUSED_PARAM(_startupinfo *startup_info))
diff --git a/mingw-w64-crt/stdio/mingw_dummy__lock.c
b/mingw-w64-crt/stdio/mingw_dummy__lock.c
new file mode 100644
index 000000000000..7afe665d0c98
--- /dev/null
+++ b/mingw-w64-crt/stdio/mingw_dummy__lock.c
@@ -0,0 +1,12 @@
+/**
+ * This file has no copyright assigned and is placed in the Public Domain.
+ * This file is part of the mingw-w64 runtime package.
+ * No warranty is given; refer to the file DISCLAIMER.PD within this package.
+ */
+
+#include <internal.h>
+
+void __cdecl _lock(int locknum);
+void __cdecl _unlock(int locknum);
+void __cdecl _lock(__UNUSED_PARAM(int locknum)) { }
+void __cdecl _unlock(__UNUSED_PARAM(int locknum)) { }
--
2.20.1
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