I got this error when compiling a fortran code using the new version of CLToolkit 15.3 (with 15.1 I have no problems at all): In file included from /Library/Developer/CommandLineTools/SDKs/MacOSX14.4.sdk/usr/include/_stdio.h:68, from /usr/local/lib/gcc/aarch64-apple-darwin22.2.0/13.0.0/include-fixed/stdio.h:78, from /Users/meanapanedar2/programming/SIMPLE/src/jpg/stb_image.h:307, from /Users/meanapanedar2/programming/SIMPLE/src/jpg/stb_image_write.c:14: /Library/Developer/CommandLineTools/SDKs/MacOSX14.4.sdk/usr/include/sys/cdefs.h:554:30: error: missing ')' after "__has_attribute" 554 | #if __has_cpp_attribute(clang::unsafe_buffer_usage) | ^ /Library/Developer/CommandLineTools/SDKs/MacOSX14.4.sdk/usr/include/sys/cdefs.h:554:31: error: ':' without preceding '?' 554 | #if __has_cpp_attribute(clang::unsafe_buffer_usage) | ^ In file included from /usr/local/lib/gcc/aarch64-apple-darwin22.2.0/13.0.0/include-fixed/math.h:45, from /Users/meanapanedar2/programming/SIMPLE/src/ops/simple_kbinterpol_memo.c:2: /Library/Developer/CommandLineTools/SDKs/MacOSX14.4.sdk/usr/include/sys/cdefs.h:554:30: error: missing ')' after "__has_attribute" 554 | #if __has_cpp_attribute(clang::unsafe_buffer_usage) | ^ /Library/Developer/CommandLineTools/SDKs/MacOSX14.4.sdk/usr/include/sys/cdefs.h:554:31: error: ':' without preceding '?' 554 | #if __has_cpp_attribute(clang::unsafe_buffer_usage) | ^ In file included from /Library/Developer/CommandLineTools/SDKs/MacOSX14.4.sdk/usr/include/ConditionalMacros.h:61, from /Library/Developer/CommandLineTools/SDKs/MacOSX14.4.sdk/usr/include/MacTypes.h:41, from /Users/meanapanedar2/programming/SIMPLE/src/fileio/simple_posix.c:15: /Library/Developer/CommandLineTools/SDKs/MacOSX14.4.sdk/usr/include/TargetConditionals.h:140:50: error: missing binary operator before token "(" 140 | #if !defined(__has_extension) || !__has_extension(define_target_os_macros) | ^ In file included from /Library/Developer/CommandLineTools/SDKs/MacOSX14.4.sdk/usr/include/sys/types.h:75, from /Library/Developer/CommandLineTools/SDKs/MacOSX14.4.sdk/usr/include/MacTypes.h:48: /Library/Developer/CommandLineTools/SDKs/MacOSX14.4.sdk/usr/include/sys/cdefs.h:554:30: error: missing ')' after "__has_attribute" 554 | #if __has_cpp_attribute(clang::unsafe_buffer_usage) | ^ /Library/Developer/CommandLineTools/SDKs/MacOSX14.4.sdk/usr/include/sys/cdefs.h:554:31: error: ':' without preceding '?' 554 | #if __has_cpp_attribute(clang::unsafe_buffer_usage) | ^ [ 7%] Building Fortran object lib/CMakeFiles/SIMPLE3.0.0.dir/defs/simple_defs.f90.o [ 7%] Building Fortran object lib/CMakeFiles/SIMPLE3.0.0.dir/xml/fsys/fox_m_fsys_parse_input.F90.o make[2]: *** [lib/CMakeFiles/SIMPLE3.0.0.dir/ops/simple_kbinterpol_memo.c.o] Error 1 make[2]: *** Waiting for unfinished jobs.... [ 7%] Building Fortran object lib/CMakeFiles/SIMPLE3.0.0.dir/ops/json_parameters.f90.o [ 7%] Building Fortran object lib/CMakeFiles/SIMPLE3.0.0.dir/xml/fsys/fox_m_fsys_count_parse_input.F90.o [ 7%] Building Fortran object lib/CMakeFiles/SIMPLE3.0.0.dir/xml/fsys/fox_m_fsys_format.F90.o make[2]: *** [lib/CMakeFiles/SIMPLE3.0.0.dir/jpg/stb_image_write.c.o] Error 1 make[2]: *** [lib/CMakeFiles/SIMPLE3.0.0.dir/fileio/simple_posix.c.o] Error 1 make[1]: *** [lib/CMakeFiles/SIMPLE3.0.0.dir/all] Error 2 make: *** [all] Error 2