mupdf: Minor fix/cleanups/patch hunks readd accidentally lost in 1.15.0 update

Fixes:
- Use `HAVE_GLUT ?= yes' instead of `HAVE_GLUT := yes' in patch-ab:
  in that way possible `MAKE_ENV+= HAVE_GLUT=no' in options.mk is honored
  (in 1.15.0 update this could lead to building and installing mupdf-gl
  and failing due PLIST mismatch despite `opengl' option was not
  set.)

Cleanups/patch hunks readds/improvements:
 - Avoid to remove non existent thirdparty/curl directory no longer exists,
   do not remove it in post-extract
 - Clarify why pkgsrc lcms2 could not be used
 - Remove curl leftover in buildlink3.mk
 - Update patch-Makethird, patch-ab, patch-ac comments to reflect reality
 - Populate SYS_GLUT_{CFLAGS,LIBS} via `pkg-config'

3 files changed, 10 insertions, 14 deletions

diff --git a/print/mupdf/patches/patch-Makethird b/print/mupdf/patches/patch-Makethird
index e9160761398..066e95a8c51 100644
--- a/print/mupdf/patches/patch-Makethird
+++ b/print/mupdf/patches/patch-Makethird
@@ -1,8 +1,6 @@
-$NetBSD: patch-Makethird,v 1.9 2018/10/04 19:02:33 leot Exp $
+$NetBSD: patch-Makethird,v 1.10 2019/05/13 11:03:58 leot Exp $
 
-- mujs building support with libtool
-- Avoid the internal lcms2 version provided and honors SYS_LCMS2_{CFLAGS,LIBS}.
-  These are handled in patches/patch-ab.
+mujs building support with libtool
 
 --- Makethird.orig	2018-09-25 12:39:17.000000000 +0000
 +++ Makethird
diff --git a/print/mupdf/patches/patch-ab b/print/mupdf/patches/patch-ab
index 3b5da57d8dc..7be05ae0c5b 100644
--- a/print/mupdf/patches/patch-ab
+++ b/print/mupdf/patches/patch-ab
@@ -1,4 +1,4 @@
-$NetBSD: patch-ab,v 1.19 2019/05/12 12:27:02 ryoon Exp $
+$NetBSD: patch-ab,v 1.20 2019/05/13 11:03:58 leot Exp $
 
 - Handle the various operating systems in the same way avoiding hardcoding
 - Avoid to use objcopy by setting HAVE_OBJCOPY to no (if `yes', and with
@@ -11,7 +11,7 @@ $NetBSD: patch-ab,v 1.19 2019/05/12 12:27:02 ryoon Exp $
   set SYS_GLUT_{CFLAGS,LIBS} accordingly.
 - Avoid internal version of lcms2 and try to pick it up via pkg-config and
   set SYS_LCMS2_{CFLAGS,LIBS} accordingly.
-  If no lcms2 is available just pass `-DNO_ICC' to disable it via
+  If no lcms2 is available just pass `-DFZ_ENABLE_ICC=0' to disable it via
   CFLAGS.
 
 --- Makerules.orig	2019-05-06 11:53:09.000000000 +0000
@@ -94,14 +94,15 @@ $NetBSD: patch-ab,v 1.19 2019/05/12 12:27:02 ryoon Exp $
 -  endif
 +endif
  
-+ifeq ($(shell pkg-config --exists glut && echo yes),yes)
-   HAVE_GLUT := yes
+-  HAVE_GLUT := yes
 -  ifeq ($(HAVE_GLUT),yes)
 -	SYS_GLUT_CFLAGS :=
 -	SYS_GLUT_LIBS := -lglut -lGL
 -  endif
-+  SYS_GLUT_CFLAGS :=
-+  SYS_GLUT_LIBS := -lglut -lGL
++ifeq ($(shell pkg-config --exists glut && echo yes),yes)
++  HAVE_GLUT ?= yes
++  SYS_GLUT_CFLAGS := $(shell pkg-config --cflags glut)
++  SYS_GLUT_LIBS := $(shell pkg-config --libs glut)
 +endif
  
    HAVE_X11 := $(shell pkg-config --exists x11 xext && echo yes)
diff --git a/print/mupdf/patches/patch-ac b/print/mupdf/patches/patch-ac
index ad2fa0e4a0f..f0372562f6a 100644
--- a/print/mupdf/patches/patch-ac
+++ b/print/mupdf/patches/patch-ac
@@ -1,4 +1,4 @@
-$NetBSD: patch-ac,v 1.21 2019/05/12 12:27:02 ryoon Exp $
+$NetBSD: patch-ac,v 1.22 2019/05/13 11:03:58 leot Exp $
 
 - libtool support 
 - Install target cleanup
@@ -6,9 +6,6 @@ $NetBSD: patch-ac,v 1.21 2019/05/12 12:27:02 ryoon Exp $
 - Do not force `-O0' flag when building
 - Get rid of unused VERSION variable and `version:' target (otherwise `git' can
   be invoked during the building phase)
-- Install only one `mupdf' binary, prefer the featureful one and always
-  install it as `mupdf'.
-- Install all EXTRA_APPS (muraster, mujstest, mjsgen)
 
 --- Makefile.orig	2019-05-06 11:53:09.000000000 +0000
 +++ Makefile