ENV: add cc and cxx setters
ENV: use cc accessor
ENV: use cflags setter
Fix conditional in ENV.fortran
ENV: use fc accessor
ENV: only set fortran flags in one place
signing-party: gpgparticipants: not working on OSX

```data``` on OSX behave differently from the linux version.

Closes #21628.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
signing-party: style nits
wxmac: add arch flags

When using as a dependency for SAGA GIS, the missing architecture flags causes
it to fail. These extra flags help it compile correctly.

Closes #21179.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
sqlite 3.8.0.1

Closes #22213.

Signed-off-by: Xiyue Deng <manphiz@gmail.com>
sphinx 2.0.9

Closes #22237.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
MYSQL++ 3.2.0

Closes #22235.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
leveldb 1.13.0

Closes #22234.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
Added --with-openblas option to link to OpenBLAS

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
Reorder cc wrapper modes by frequency
Differentiate between "cpp" and "cc-E" modes
Don't duplicate -E argument in ccE mode
Workaround for debrew

See #21720.
Add test for dependency options
Push dependency option generation into BuildOptions