security/libgcrypt: fix build with GCC on 8.x/amd64, 2nd attempt

Thanks to tijl@ for spotting the Makefile bug.

PR:		192555
Submitted by:	Carlos Jacobo Puga Medina <cpm@fbsd.es>
Approved by:	maintainer (timeout)
Fix misleading option name: the option uses plotutils, not gnuplot
No functional changes

PR:		193317
Submitted by:	amdmi3
math/scilab:
- Update to 5.5.0
- Populate USES with desktop-file-utils, iconv, libtool, pathfix,
  and shared-mime-info
- Add dependency on xdg-utils
- Remove needless USE_LDCONFIG
- Clean up CONFIGURE_ENV from stale stuff
- Update options:
  . remove DOCS, FFTW, MATIO, UMFPACK (always build with them for simplicity)
  . remove NLS (doesn't build without it)
  . merge HELP with GUI
  . PVM is not supported anymore
  . Enable OCAML and TK by default
- Use options heplers
- Clean up post-patch section from stale fixes
- Convert to static pkg-plist
math/scilab-toolbox-swt:
- Update to 0.1.20
- Don't require X for documentation building
- USE_GCC=any
- Convert to options helpers
math/scilab-toolbox-sivp:
- Add patch from upstream to fix build with scilab-5.5
- Don't require X for documentation building
- Convert echos to pkg-message
- Add LICENSE
- Fix build: use USES=python:2
- Use single space after WWW:

Approved by:	portmgr (blanket)
With hat:	python
Update to 1.2.7. Make the port significantly less clever.

While here, remove PKGNAMESUFFIX and CONFLICTS in preparation
for removing www/webcalendar, which has been obsoleted for
for a very long time.
Remove www/webcalendar. webcalendar-devel is about to become www/webcalendar.

From the WWW:

	 The latest official 1.0.X release is 1.0.5. This release should not be
	 used for new installs since it is no longer supported (use 1.2.X
	 instead).
graphics/klatexformula:
- Update to 3.2.11
- USES+= desktop-file-utils
- Remove upstreamed patch
Move www/webcalendar-devel to www/webcalendar.
@dirrmtry include/linux, which is used by multiple ports

Approved by:	portmgr blanket
- Fix build with clang by using std::vector instead of variable size array of non-POD type
- Fix build with PLOTUTILS enabled, which was broken when built with GCC