Replaced the undefined _AC_C_STD_TRY macro with a manual compiler support check for C11 using standard Autoconf macros. This ensures compatibility with Autoconf 2.71 and resolves configuration errors related to compiler feature checks. The update includes a direct setting of C11 flags and a compile test to verify support, improving the build configuration's robustness and portability.
Replaced the undefined _AC_C_STD_TRY macro with a manual compiler support check for C11 using standard Autoconf macros. This ensures compatibility with Autoconf 2.71 and resolves configuration errors related to compiler feature checks. The update includes a direct setting of C11 flags and a compile test to verify support, improving the build configuration's robustness and portability.