https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82393
Bug ID: 82393 Summary: Compilation error on cygwin64 Product: gcc Version: 7.2.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: ada Assignee: unassigned at gcc dot gnu.org Reporter: didu31 at hotmail dot fr Target Milestone: --- System : cygwin64 on windows 10 64bit configuration : /cygdrive/c/Users/didier/git/gcc/configure --enable-libada --enable-lto --with-cloog=/usr/local --with-isl=/usr/local/ --enable-languages=c,c++,ada When building gcc, compilation complains _O_BINARY and _O_TEXT are undefined. This seems normal as they are windows-specific. It seems, regarding similar bug reports (for other open source software) on the web that they are defined in cygwin32 fcntl.h, nevertheless. Here is the raw report : /home/didier/gcc-build-7.2/./gcc/xgcc -v -save-temps -B/home/didier/gcc-build-7.2/./gcc/ -B/usr/local/x86_64-unknown-cygwin/bin/ -B/usr/local/x86_64-unknown-cygwin/lib/ -isystem /usr/local/x86_64-unknown-cygwin/include -isystem /usr/local/x86_64-unknown-cygwin/sys-include -c -DIN_GCC -W -Wall -g -O2 -g -O2 -fexceptions -DIN_RTS -DHAVE_GETIPINFO -iquote . -iquote .. -iquote ../.. -iquote /cygdrive/c/Users/didier/git/gcc/gcc/ada -iquote /cygdrive/c/Users/didier/git/gcc/gcc -I/cygdrive/c/Users/didier/git/gcc/include -I./../.. sysdep.c -o sysdep.o Reading specs from /home/didier/gcc-build-7.2/./gcc/specs COLLECT_GCC=/home/didier/gcc-build-7.2/./gcc/xgcc Target: x86_64-unknown-cygwin Configured with: /cygdrive/c/Users/didier/git/gcc/configure --enable-libada --enable-lto --with-cloog=yes --with-isl=/usr/local/ --enable-languages=c,c++,ada Thread model: single gcc version 7.2.0 (GCC) COLLECT_GCC_OPTIONS='-v' '-save-temps' '-B' '/home/didier/gcc-build-7.2/./gcc/' '-B' '/usr/local/x86_64-unknown-cygwin/bin/' '-B' '/usr/local/x86_64-unknown-cygwin/lib/' '-isystem' '/usr/local/x86_64-unknown-cygwin/include' '-isystem' '/usr/local/x86_64-unknown-cygwin/sys-include' '-c' '-D' 'IN_GCC' '-Wextra' '-Wall' '-g' '-O2' '-g' '-O2' '-fexceptions' '-D' 'IN_RTS' '-D' 'HAVE_GETIPINFO' '-iquote' '.' '-iquote' '..' '-iquote' '../..' '-iquote' '/cygdrive/c/Users/didier/git/gcc/gcc/ada' '-iquote' '/cygdrive/c/Users/didier/git/gcc/gcc' '-I' '/cygdrive/c/Users/didier/git/gcc/include' '-I' './../..' '-o' 'sysdep.o' '-mtune=generic' '-march=x86-64' /home/didier/gcc-build-7.2/./gcc/cc1.exe -E -quiet -v -I /cygdrive/c/Users/didier/git/gcc/include -I ./../.. -iprefix /home/didier/gcc-build-7.2/gcc/../lib/gcc/x86_64-unknown-cygwin/7.2.0/ -isystem /home/didier/gcc-build-7.2/./gcc/include -isystem /home/didier/gcc-build-7.2/./gcc/include-fixed -Dunix -idirafter /usr/lib/../lib/../include/w32api -idirafter ../../include/w32api -D IN_GCC -D IN_RTS -D HAVE_GETIPINFO -isystem /usr/local/x86_64-unknown-cygwin/include -isystem /usr/local/x86_64-unknown-cygwin/sys-include -iquote . -iquote .. -iquote ../.. -iquote /cygdrive/c/Users/didier/git/gcc/gcc/ada -iquote /cygdrive/c/Users/didier/git/gcc/gcc sysdep.c -mtune=generic -march=x86-64 -Wextra -Wall -fexceptions -g -g -fworking-directory -O2 -O2 -fpch-preprocess -o sysdep.i ignoring nonexistent directory "/usr/local/x86_64-unknown-cygwin/include" ignoring nonexistent directory "/usr/local/x86_64-unknown-cygwin/sys-include" ignoring nonexistent directory "/home/didier/gcc-build-7.2/gcc/../lib/gcc/x86_64-unknown-cygwin/7.2.0/include" ignoring nonexistent directory "/home/didier/gcc-build-7.2/gcc/../lib/gcc/x86_64-unknown-cygwin/7.2.0/include-fixed" ignoring nonexistent directory "/home/didier/gcc-build-7.2/gcc/../lib/gcc/x86_64-unknown-cygwin/7.2.0/../../../../x86_64-unknown-cygwin/include" ignoring nonexistent directory "/home/didier/gcc-build-7.2/gcc/../lib/gcc/../../lib/gcc/x86_64-unknown-cygwin/7.2.0/include" ignoring nonexistent directory "/home/didier/gcc-build-7.2/gcc/../lib/gcc/../../lib/gcc/x86_64-unknown-cygwin/7.2.0/include-fixed" ignoring nonexistent directory "/home/didier/gcc-build-7.2/gcc/../lib/gcc/../../lib/gcc/x86_64-unknown-cygwin/7.2.0/../../../../x86_64-unknown-cygwin/include" ignoring nonexistent directory "../../include/w32api" #include "..." search starts here: . .. ../.. /cygdrive/c/Users/didier/git/gcc/gcc/ada /cygdrive/c/Users/didier/git/gcc/gcc #include <...> search starts here: /cygdrive/c/Users/didier/git/gcc/include ./../.. /home/didier/gcc-build-7.2/./gcc/include /home/didier/gcc-build-7.2/./gcc/include-fixed /usr/local/include /usr/include /usr/lib/../lib/../include/w32api End of search list. COLLECT_GCC_OPTIONS='-v' '-save-temps' '-B' '/home/didier/gcc-build-7.2/./gcc/' '-B' '/usr/local/x86_64-unknown-cygwin/bin/' '-B' '/usr/local/x86_64-unknown-cygwin/lib/' '-isystem' '/usr/local/x86_64-unknown-cygwin/include' '-isystem' '/usr/local/x86_64-unknown-cygwin/sys-include' '-c' '-D' 'IN_GCC' '-Wextra' '-Wall' '-g' '-O2' '-g' '-O2' '-fexceptions' '-D' 'IN_RTS' '-D' 'HAVE_GETIPINFO' '-iquote' '.' '-iquote' '..' '-iquote' '../..' '-iquote' '/cygdrive/c/Users/didier/git/gcc/gcc/ada' '-iquote' '/cygdrive/c/Users/didier/git/gcc/gcc' '-I' '/cygdrive/c/Users/didier/git/gcc/include' '-I' './../..' '-o' 'sysdep.o' '-mtune=generic' '-march=x86-64' /home/didier/gcc-build-7.2/./gcc/cc1.exe -fpreprocessed sysdep.i -quiet -dumpbase sysdep.c -mtune=generic -march=x86-64 -auxbase-strip sysdep.o -g -g -O2 -O2 -Wextra -Wall -version -fexceptions -o sysdep.s GNU C11 (GCC) version 7.2.0 (x86_64-unknown-cygwin) compiled by GNU C version 7.2.0, GMP version 6.1.2, MPFR version 3.1.5-p10, MPC version 1.0.3, isl version isl-0.15-GMP GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072 GNU C11 (GCC) version 7.2.0 (x86_64-unknown-cygwin) compiled by GNU C version 7.2.0, GMP version 6.1.2, MPFR version 3.1.5-p10, MPC version 1.0.3, isl version isl-0.15-GMP GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072 Compiler executable checksum: 48e22b895796c0b5999b4c63d201b33b sysdep.c: In function '__gnat_set_mode': sysdep.c:195:13: error: '_O_BINARY' undeclared (first use in this function) case 0 : WIN_SETMODE (handle, _O_BINARY); break; ^~~~~~~~~ sysdep.c:195:13: note: each undeclared identifier is reported only once for each function it appears in sysdep.c:197:13: error: '_O_TEXT' undeclared (first use in this function); did you mean 'CONTEXT'? case 2 : WIN_SETMODE (handle, _O_TEXT); break; ^~~~~~~ CONTEXT