[Bug libstdc++/81797] gcc 7.1.0 fails to build on macOS 10.13 (High Sierra):

[dam at cosinux dot org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81797

Damien Merenne <dam at cosinux dot org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |dam at cosinux dot org

--- Comment #71 from Damien Merenne <dam at cosinux dot org> ---
I can also confirm this bug is still present: MacOS High Sierra, building gcc
9.1.0 with GNU Make 3.81

Users/dam/.conan/data/arm_none_eabi_gcc_installer/9.1.0/bloomlife/dev/build/743cf0321be3152777da4d05247a66d1552e70a2/build/gcc-first/./gcc/xgcc
-B/Users/dam/.conan/data/arm_none_eabi_gcc_installer/9.1.0/bloomlife/dev/build/743cf0321be3152777da4d05247a66d1552e70a2/build/gcc-first/./gcc/
-B/Users/dam/.conan/data/arm_none_eabi_gcc_installer/9.1.0/bloomlife/dev/package/743cf0321be3152777da4d05247a66d1552e70a2/x86_64-apple-darwin18.6.0/bin/
-B/Users/dam/.conan/data/arm_none_eabi_gcc_installer/9.1.0/bloomlife/dev/package/743cf0321be3152777da4d05247a66d1552e70a2/x86_64-apple-darwin18.6.0/lib/
-isystem
/Users/dam/.conan/data/arm_none_eabi_gcc_installer/9.1.0/bloomlife/dev/package/743cf0321be3152777da4d05247a66d1552e70a2/x86_64-apple-darwin18.6.0/include
-isystem
/Users/dam/.conan/data/arm_none_eabi_gcc_installer/9.1.0/bloomlife/dev/package/743cf0321be3152777da4d05247a66d1552e70a2/x86_64-apple-darwin18.6.0/sys-include
  -fno-checking -g -O2
-I/Users/dam/.conan/data/arm_none_eabi_gcc_installer/9.1.0/bloomlife/dev/package/743cf0321be3152777da4d05247a66d1552e70a2/host/include
-L/Users/dam/.conan/data/arm_none_eabi_gcc_installer/9.1.0/bloomlife/dev/package/743cf0321be3152777da4d05247a66d1552e70a2/host/lib
-w -m32 -O2  -g -O2
-I/Users/dam/.conan/data/arm_none_eabi_gcc_installer/9.1.0/bloomlife/dev/package/743cf0321be3152777da4d05247a66d1552e70a2/host/include
-L/Users/dam/.conan/data/arm_none_eabi_gcc_installer/9.1.0/bloomlife/dev/package/743cf0321be3152777da4d05247a66d1552e70a2/host/lib
-w -DIN_GCC    -W -Wall -Wno-narrowing -Wwrite-strings -Wcast-qual -Wno-format
-Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition  -isystem
./include   -mmacosx-version-min=10.5 -pipe -fno-common -g -DIN_LIBGCC2
-fbuilding-libgcc -fno-stack-protector -Dinhibit_libc 
-mmacosx-version-min=10.5 -pipe -fno-common -I. -I. -I../../.././gcc
-I/Users/dam/.conan/data/arm_none_eabi_gcc_installer/9.1.0/bloomlife/dev/build/743cf0321be3152777da4d05247a66d1552e70a2/gcc-9.1.0/libgcc
-I/Users/dam/.conan/data/arm_none_eabi_gcc_installer/9.1.0/bloomlife/dev/build/743cf0321be3152777da4d05247a66d1552e70a2/gcc-9.1.0/libgcc/.
-I/Users/dam/.conan/data/arm_none_eabi_gcc_installer/9.1.0/bloomlife/dev/build/743cf0321be3152777da4d05247a66d1552e70a2/gcc-9.1.0/libgcc/../gcc
-I/Users/dam/.conan/data/arm_none_eabi_gcc_installer/9.1.0/bloomlife/dev/build/743cf0321be3152777da4d05247a66d1552e70a2/gcc-9.1.0/libgcc/../include
   -o enable-execute-stack.o -MT enable-execute-stack.o -MD -MP -MF
enable-execute-stack.dep  -c enable-execute-stack.c -fvisibility=hidden
-DHIDE_EXPORTS
enable-execute-stack.c:25:10: fatal error: sys/mman.h: No such file or
directory