Hello, I have started exploring Postgresql recently. I am trying to build Postgresql from source on a windows machine. I am referring to the page https://www.postgresql.org/docs/current/install-meson.html#INSTALL-SHORT-MESON
The ninja command is failing with the error message: PS C:\PostgreSQLworkspace\postgres\build> ninja [142/2102] Generating src/fe_utils/psqlscan with a custom command FAILED: src/fe_utils/psqlscan.c "C:\MyPrograms\Meson\meson.exe" "runpython" "../src/tools/pgflex" "--builddir" "." "--srcdir" ".." "--privatedir" "src/fe_utils/psqlscan.c.p" "--flex" "C:\MyPrograms\GnuWin32\bin\flex.EXE" "--perl" "C:\Strawberry\perl\bin\perl.EXE" "-i" "../src/fe_utils/psqlscan.l" "-o" "src/fe_utils/psqlscan.c" "--no-backup" "--" "-Cfe" "-p" "-p" C:\MyPrograms\GnuWin32\bin\flex.EXE: can't open C:\PostgreSQLworkspace\postgres\build\src\fe_utils\psqlscan.c [146/2102] Generating src/backend/bootstrap/bootscanner with a custom command FAILED: src/backend/bootstrap/bootscanner.c "C:\MyPrograms\Meson\meson.exe" "runpython" "../src/tools/pgflex" "--builddir" "." "--srcdir" ".." "--privatedir" "src/backend/bootstrap/bootscanner.c.p" "--flex" "C:\MyPrograms\GnuWin32\bin\flex.EXE" "--perl" "C:\Strawberry\perl\bin\perl.EXE" "-i" "../src/backend/bootstrap/bootscanner.l" "-o" "src/backend/bootstrap/bootscanner.c" C:\MyPrograms\GnuWin32\bin\flex.EXE: can't open C:\PostgreSQLworkspace\postgres\build\src\backend\bootstrap\bootscanner.c [147/2102] Generating src/backend/parser/scan with a custom command FAILED: src/backend/parser/scan.c "C:\MyPrograms\Meson\meson.exe" "runpython" "../src/tools/pgflex" "--builddir" "." "--srcdir" ".." "--privatedir" "src/backend/parser/scan.c.p" "--flex" "C:\MyPrograms\GnuWin32\bin\flex.EXE" "--perl" "C:\Strawberry\perl\bin\perl.EXE" "-i" "../src/backend/parser/scan.l" "-o" "src/backend/parser/scan.c" "--no-backup" "--" "-CF" "-p" "-p" C:\MyPrograms\GnuWin32\bin\flex.EXE: can't open C:\PostgreSQLworkspace\postgres\build\src\backend\parser\scan.c ninja: build stopped: subcommand failed. PS C:\PostgreSQLworkspace\postgres\build> I have enabled full permission on the folder but still no luck. Can someone please help me with this? Any troubleshooting pointers would be a great help! Thanks in advance! Thanks and Regards, Prafulla
