[S] Change in flashrom[master]: Makefile: Build man-page only when sphinx is available

[Thomas Heijligen (Code Review)]

Attention is currently required from: Thomas Heijligen.

Hello build bot (Jenkins), Anastasia Klimchuk, Alexander Goncharov,

I'd like you to reexamine a change. Please visit

https://review.coreboot.org/c/flashrom/+/74519

to look at the new patch set (#2).

Change subject: Makefile: Build man-page only when sphinx is available
......................................................................

Makefile: Build man-page only when sphinx is available

Currently, it's not possible to compile the upstream branch using the
`make' command without sphinx beeing installed.

Check if sphinx-build is installed and only then build or install the
man-page.

The problem was noticed from commit
f4f2f3dd19784efa26fd5619b7a44b4cdf14b04c move manpage to sphinx.

Change-Id: If1b81d9bc25ecac19d493b44b00a7c42d0643fe6
Signed-off-by: Thomas Heijligen 
---
M Makefile
M Makefile.include
2 files changed, 39 insertions(+), 7 deletions(-)

git pull ssh://review.coreboot.org:29418/flashrom refs/changes/19/74519/2