Hi,
with source cvs'updated some minutes ago on MacOS: > sw_vers ProductName: macOS ProductVersion: 15.1 BuildVersion: 24B83 using newest Developer-Tools updated yesterday: > gcc --version Apple clang version 16.0.0 (clang-1600.0.26.4) Target: x86_64-apple-darwin24.1.0 Thread model: posix InstalledDir: /Library/Developer/CommandLineTools/usr/bin + cc -O -no-cpp-precomp -fno-omit-frame-pointer -fno-optimize-sibling-calls -I/u/NetBSD/arch/amd64/TOOLS/include/compat -I/u/NetBSD/src/tools/compat -DHAVE_NBTOOL_CONFIG_H=1 -D_FILE_OFFSET_BITS=64 -I/u/NetBSD/src/tools/ctags/../../usr.bin/ctags -c -o ctags.lo.o /u/NetBSD/src/tools/ctags/../../usr.bin/ctags/ctags.c /u/NetBSD/src/tools/ctags/../../usr.bin/ctags/ctags.c:144:12: error: call to undeclared function 'shquote'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 144 | if ((sz = shquote(outfile, tname, sizeof tname)) >= sizeof tname) { | ^ 1 error generated. *** Failed target: ctags.lo With the same source on NetBSD-amd86 this is only a "warning" and the compile succeeds: create ctags/.depend compile ctags/C.lo compile ctags/ctags.lo compile ctags/fortran.lo compile ctags/lisp.lo /u/NetBSD/src.ks/tools/ctags/../../usr.bin/ctags/ctags.c: In function 'main': /u/NetBSD/src.ks/tools/ctags/../../usr.bin/ctags/ctags.c:144:19: warning: implicit declaration of function 'shquote' [-Wimplicit-function-declaration] 144 | if ((sz = shquote(outfile, tname, sizeof tname)) >= sizeof tname) { | ^~~~~~~ compile ctags/print.lo compile ctags/tree.lo compile ctags/yacc.lo link ctags/ctags Kurt