Bug 18433 – rdmd doesn't respect DFLAGS for its cache hash

rdmd currently ignores DFLAGS. These flags should be treated like all the other compiler flags.

Hmm I think the problem is more in DMD not respecting everything from DFLAGS: However, this has been in master: cat > foo.d << EOF void main(){ import std.stdio; version(Foo) { "foo".writeln; } else { "bar".writeln; } } EOF ``` > dmd -version=Foo foo.d && ./foo foo > DFLAGS="-version=Foo" dmd foo.d && ./foo bar > DFLAGS="-version=Foo" rdmd --force foo.d bar ``` (with ~master this correctly yields foo for all commands) But it looks like rdmd's caching doesn't include a hash of DFLAGS. ``` DFLAGS="-version=Foo" rdmddev foo.d foo DFLAGS="-version=Bar" rdmddev foo.d foo ``` (so I'm renaming this)

Argh, apparently this hasn't been fixed in master and DFLAGS is only looked at when -conf= is set: ``` > DFLAGS="-version=Foo" ../dmd/generated/linux/release/64/dmd -v foo.d && ./foo predefs DigitalMars Posix linux ELFv1 LittleEndian D_Version2 all D_SIMD D_InlineAsm_X86_64 X86_64 CRuntime_Glibc D_LP64 D_PIC assert D_HardFloat binary ../dmd/generated/linux/release/64/dmd version v2.079.0-284-g23b2e2e0d config ../dmd/generated/linux/release/64/dmd.conf DFLAGS -I../dmd/generated/linux/release/64/../../../../../druntime/import -I../dmd/generated/linux/release/64/../../../../../phobos -L-L../dmd/generated/linux/release/64/../../../../../phobos/generated/linux/release/64 -L--export-dynamic -fPIC ``` ``` > DFLAGS="-version=Foo" dmd -conf= -I~/dlang/phobos -I~/dlang/druntime/import -c -v foo.d predefs Foo DigitalMars Posix linux ELFv1 LittleEndian D_Version2 all D_SIMD D_InlineAsm_X86_64 X86_64 CRuntime_Glibc D_LP64 D_PIC assert D_HardFloat binary /home/seb/dlang/dmd/generated/linux/release/64/dmd version v2.079.0-284-g23b2e2e0d config DFLAGS -version=Foo ```

Moved to https://github.com/dlang/tools/issues/424