-Werror,-Wdeprecated-declarations (sprintf, macOS 13 SDK): soltools

These occurrences of sprintf in C code don't normally trigger the deprecation
warning at least with recent macOS, because macOS by default now enables
_FORTIFY_SOURCE (see the code setting it in
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX13.0.sdk/usr/include/_types.h
when originally unset), which for C code hides the declaration of sprintf (along
with its deprecation annotation) in
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX13.0.sdk/usr/include/stdio.h
with a macro (expanding to __builtin___sprintf_chk) in
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX13.0.sdk/usr/include/secure/_stdio.h.
But they started to trigger when I did an experimental -fsanitize=address build,
because
<https://github.com/llvm/llvm-project/commit/b4f819086a61b5a843f0171a7467c5184ba1b086>
"Disable source fortification on Darwin with AddressSanitizer" predefines
-D_FORTIFY_SOURCE=0 in that case.

While there might be ways to clean this code up to use something better than the
deprecated sprintf, don't bother too much with this 3rd-party, build-time--only
code and just silence any potential deprecation warnings.

Change-Id: I9f223a0ad50b2729b5d9af2db588fe9f82d0b07f
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/142534
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/soltools/cpp/_macro.c b/soltools/cpp/_macro.c
index ef41b992edae..fbf496b8f781 100644
--- a/soltools/cpp/_macro.c
+++ b/soltools/cpp/_macro.c
@@ -27,6 +27,8 @@
 #endif
 #include <limits.h>
 
+#include <sal/types.h>
+
 #include "cpp.h"
 
 #define NCONCAT 16384
@@ -143,7 +145,9 @@ void
         {
             if (cp != location)
                 *cp++ = ' ';
+            SAL_WNODEPRECATED_DECLARATIONS_PUSH /* sprintf (macOS 13 SDK) */
             sprintf((char *)cp, "%s:%d", s->filename, s->line);
+            SAL_WNODEPRECATED_DECLARATIONS_POP
             cp += strlen((char *)cp);
         }