https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120974
Bug ID: 120974 Summary: Default -fdeps-file and -fdeps-target arguments don't support output directories with spaces Product: gcc Version: 15.1.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: nicolas.werner at hotmail dot de Target Milestone: --- Imagine the following module: export module test; export void foo() {} If we have a target directory named "dir with spaces", the following command will fail, because "too many filenames" are given: g++ -fmodules -fdeps-format=p1689r5 -c -MD -o 'dir with spaces/test.o' test.cpp This is because the spec rule in https://gcc.gnu.org/git/?p=gcc.git;a=blob;f=gcc/gcc.cc;h=c6e600fa0d34712682f6457721c6d212caafcf26;hb=024f135a1e9b8f8e102960357cae6e99e1dbe6eb#l1240 fails when the output directory contains spaces. The following command does work correctly: g++ -fmodules -fdeps-format=p1689r5 -c -MD -o 'dir with spaces/test.o' '-fdeps-file=dir with spaces/test.ddi' '-fdeps-target=dir with spaces/test.o' test.cpp System info: Using built-in specs. COLLECT_GCC=gcc COLLECT_LTO_WRAPPER=/usr/libexec/gcc/x86_64-pc-linux-gnu/15/lto-wrapper OFFLOAD_TARGET_NAMES=nvptx-none OFFLOAD_TARGET_DEFAULT=1 Target: x86_64-pc-linux-gnu Configured with: /var/tmp/portage/sys-devel/gcc-15.1.0/work/gcc-15.1.0/configure --host=x86_64-pc-linux-gnu --build=x86_64-pc-linux-gnu --prefix=/usr --bindir=/usr/x86_64-pc-linux-gnu/gcc-bin/15 --includedir=/usr/lib/gcc/x86_64-pc-linux-gnu/15/include --datadir=/usr/share/gcc-data/x86_64-pc-linux-gnu/15 --mandir=/usr/share/gcc-data/x86_64-pc-linux-gnu/15/man --infodir=/usr/share/gcc-data/x86_64-pc-linux-gnu/15/info --with-gxx-include-dir=/usr/lib/gcc/x86_64-pc-linux-gnu/15/include/g++-v15 --disable-silent-rules --disable-dependency-tracking --with-python-dir=/share/gcc-data/x86_64-pc-linux-gnu/15/python --enable-languages=c,c++,fortran --enable-obsolete --enable-secureplt --disable-werror --with-system-zlib --enable-nls --without-included-gettext --disable-libunwind-exceptions --enable-checking=release --with-bugurl=https://bugs.gentoo.org/ --with-pkgversion='Gentoo 15.1.0 p55' --with-gcc-major-version-only --enable-libstdcxx-time --enable-lto --disable-libstdcxx-pch --enable-shared --enable-threads=posix --enable-__cxa_atexit --enable-clocale=gnu --enable-multilib --with-multilib-list=m32,m64 --disable-fixed-point --enable-targets=all --enable-offload-defaulted --enable-offload-targets=nvptx-none --enable-libgomp --disable-libssp --disable-libada --enable-cet --disable-systemtap --disable-valgrind-annotations --disable-vtable-verify --disable-libvtv --with-zstd --without-isl --enable-default-pie --enable-host-pie --enable-host-bind-now --enable-default-ssp --disable-fixincludes --with-gxx-libcxx-include-dir=/usr/include/c++/v1 --with-build-config=bootstrap-cet Thread model: posix Supported LTO compression algorithms: zlib zstd gcc version 15.1.0 (Gentoo 15.1.0 p55